baber/WOPTO huggingface dataset:
Patent GB-735543-A (GB)
Title: Improvements in antibiotics
Filed: 1953-05-18
Abstract: A new antibiotic, chartreusin, is produced by cultivating Streptomyces chartreusis NRRL-2287, or a mutant thereof, in a nutrient medium, preferably aqueous, under aerobic and preferably submerged conditions.  The temperature of fermentation is 20 DEG  to 30 DEG  C., preferably 24 DEG  to 28 DEG  C., the pH 6 to 8 and duration 3 to 6 days.  The nutrient medium contains (a) carbohydrate, e.g. glycerol, starch and sugars; (b) organic nitrogen, e.g. corn steep liquor, soybean meal, rolled oats and mixture thereof, urea, beef extract, peptone; (c) growth substances, e.g. fermentation solubles, yeast and distillers solubles; (d) mineral salts, e.g. sodium chloride, magnesium sulphate, ammonium nitrate and sulphate and potassium nitrate; (e) buffers, e.g. calcium carbonate or sodium dihydrogen phosphate; and (f) antifoaming agent.  Chartreusin is recovered by solvent extraction of (a) the fermentation broth, (b) the mycelium or (c) the mycelium-free broth.  In the case of (a) and (b) the cells of the micro organism may be disrupted, prior to extraction, by means of heat, e.g. heating with water at 60 DEG  C. for 10 minutes, or by mechanical or chemical means.  Specified solvents are alcohols such as methanol, ethanol propanol and butanol; ketones such as acetone, methyl ethyl ketone and diethyl ketone; and chlorinated hydrocarbons such as methylene chloride and chloroform. The preferred solvents are chloroform and acetone.  The sodium, potassium and other alkali metal salts, and the amine salts may be produced by adding the appropriate alkali to a solution of chartreusin in acetone.  Chartreusin is effective in inhibiting the growth of gram-positive bacteria; its free acid is weakly acidic and only slightly soluble in water; its sodium salt is soluble in water to the extent of about 20 mg. per millilitre; its hydrate melts at about 180 DEG  C. and has the following analysis: carbon 54.53 per cent, hydrogen 5.50 per cent, C-methyl 6.22 per cent, water 8.91 per cent; the dried hydrate contains 59.89 per cent carbon and 5.19 per cent hydrogen; the molecular weight is 357; suspended in liquid petrolatum the hydrate exhibits characteristic absorption bands in the infra-red spectrum at the following frequencies expressed in reciprocal centimetres: 3540-3435, 1738-1720, 1700, 1635, 1612, 1588, 1500 and 1376.  The ultra-violet spectrum is also given.  Chartreusin may be used pharmaceutically (see Group VI) as a preservative for skins and for the disinfection of seeds, fruits, textiles, paper and the like.ALSO:Chartreusin, an antibiotic effective against gram-positive but not against gram-negative micro-organisms (see Group IV (b)) is incorporated in pharmaceutical lotions, tinctures, creams, ointments and powders in the form of aqueous and oily suspensions or solutions.  There may also be present other antibiotics such as penicillins, chloramphenicol, aureomycin, polymyxin, bacitracin, streptomycin, neomycin, terramycin, endomycin, erythromycin or sulphonamides.
Patent GB-662258-A (GB)
Title: Improvements in apparatus for the production of cemented sole footwear
IPC: A43D25/10
Filed: 1949-05-25
Abstract: 662,258. Cementing soles to shoes. POCHIN, H. W., DOVE, G. H., and SWAIN, R. P. May 9, 1950 [May 25, 1949], No. 13946/49. Class 17 (i). The inflatable bladder and its casing c of a shoe soleattaching press is confined within a rubber or like pad e to prevent edge of sole curling around the feather line under the attaching pressure. The perimeter of the bladder and casing is confined within a flanged edge e<SP>1</SP> of the pad. The flexibility of the pad at the waist may be increased by thinning or by slits or cuts.
Patent GB-1499209-A (GB)
Title: Method for separating solid material particles from gases and device for carrying out the method
IPC: B01D47/06
Filed: 1975-04-04
Abstract: 1499209 Separating solid particles from gases K LESCHONSKI 4 April 1975 [5 April 1974] 13951/75 Heading B1R Solid particles are separated from gases by introducing the gases to be cleaned into the inlet 9 of a separator and through a device 1, e.g. a helical guide plate or a rotary impeller, for imparting a rotary motion to the gas flow about its flow axis, introducing a separating liquid via axially extending nozzle 11 into separating space 3 with a mean drop size of < 100 Ám, wherein the radial distance from 11 to the wall 4 of the space 3 is not more than 25 cm and separating the liquid from the gas through perforate wall 3. The wall 4 may be cylindrical or truncated conical with annular laminae extending in the direction of flight of the drops. An air baffle 7 in the liquid drain 6 and a nozzle-like constriction 2 to increase gas flow rate may also be provided.
Patent GB-458308-A (GB)
Title: Improved thermionic valve relay
IPC: G05B11/01
Filed: 1935-05-13
Abstract: 458,308. Thermionic relay circuits. THOMAS, A. R., and HUTCHINSON'S TESTING APPARATUS, Ltd., 21, Great Peter Street, Westminster. May 13, 1935, No. 13954. [Class 40 (v)] In a thermionic valve relay, a vacuum switch 2 comprising an evacuated envelope containing a control element 9 and a pair of contacts 18, 19 in the element connected in the anode cathode circuit of the valve which comprises at least an anode 8, grid 10 and cathode 13. The control grid 10 is connected through 14 to terminal 15 of a control circuit, terminal 16 of which is connected to the negative side of supply 4, 5. Closure of the control circuit causes voltage of grid 10 to be reduced by the voltage drop in control element 9 so that the anode cathode current is reduced and the load circuit is broken at contacts 18, 19. The switch 2 may be modified so that the load circuit is made when the current through 9 is reduced or the control circuit terminals 15, 16 may be included in the stabilizing leak connection 11 for this purpose. Control element 9 of the switch may be connected to the positive side of valve heater 3 instead of to the -ve side, Fig. 4 (not shown). In another arrangement, Fig. 2 (not shown), the control element 9 is again connected in the anode cathode circuit, but the valve current is reduced on closure of the control circuit by imposing thereon the voltage drop in the valve heater. In an arrangement suitable only for A.C. supply, the valve is supplied with high tension current from a transformer 25, Fig. 3, through a tapping 28, the control circuit terminal 16 being connected to 25 in such a way as to supply a biassing potential to valve grid 10 on closure of the control circuit. The thermionic relay may be used for thermostatic control by leading the control circuit to contacts on a temperature indicating device. Alternatively, the relay may be controlled by a photo-electric cell connected between the anode and the control grid. Specification 293,018, [Class 38 (v)], is referred to.
Patent GB-468033-A (GB)
Title: Improvements relating to cigarette and like packing machines
IPC: B65B19/10
Filed: 1935-11-20
Abstract: 468,033. Hoppers. CRIGHTON, J., and INDUSTRIAL MACHINERY CO., Ltd. Nov. 20, 1935, No. 13991/37. Divided out of 466,195, [Group XVII]. [Class 78 (i)] [Also in Group XVII] Cigarettes &c. from a hopper 12 fall into a compartmented shoot 50 and thence into a similarly compartmented box fixed to the table 30, and in order to stop the flow of cigarettes while those in the box are being ejected, the shoot is displaced so as to break the alignment of the partitions forming the compartments. In the form shown, the shoot is separate from the hopper and is suspended by links 31 and reciprocated by a cam on the shaft 23. Otherwise the shoot and hopper may be shifted as a whole or the partitions may be swung from pivots at their upper ends. Specification 466,195 is referred to.
Patent GB-623017-A (GB)
Title: Improvements in circuits for the generation of saw-tooth oscillations and for the supply of high voltage
IPC: H02M3/33
Filed: 1946-05-09
Abstract: 623,017. Converting. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 9, 1946, No. 13993. Convention date, March 20, 1945. [Class 38 (ii)] [Also in Groups XL (a) and XL (c)] In a high-voltage generating circuit in which a capacitor is charged from a D.C. source, a secondary electron emitting valve is arranged between the capacitor and a transformer primary so that the capacitor and transformer alternately discharge to provide a high A.C. potential across the secondary. The valve is preferably of the orbital beam type (see Group XL (a)) and the primary of the transformer may be the deflecting coils of a cathode-ray tube (see Group XL (c)). Upon the input to the grid of valve 3 going positive, current flows to the electron-emissive anodes P1, P2, the secondary electrons from anode P1 being repelled by collector G2 since anode P2 has a lower potential than anode P1, whereas the secondary electrons from anode P2 pass to collector G3. A positive current is thus established from capacitor 9 through valve 3 and primary 13. A negative pulse from the coil 29 causes the anode current to cut off completely, the current in the primary flowing into the stray capacity C. The current falls rapidly to zero and then reverses, Fig. 5 (not shown), while the potential executes a halfsine wave at the resonant frequency of primary and stray capacity. A D.C. potential is derived from the secondary by means of the diode 35 and associated filter. In a further modification, Fig. 3 (not shown), two orbital beam tubes may be employed.
Patent GB-1467893-A (GB)
Title: Fluid pressure registering system
IPC: F16K11/08
Filed: 1974-03-29
Abstract: 1467893 Valves LEE CO 29 March 1974 [29 March 1973] 14089/74 Heading F2V [Also in Division G1] A fluid pressure registering system for measuring the maximum, minimum or average pressure of a fluctuating source includes a valve member, e.g. a rotary cylindrical plug 30, in a passage in which is a one-way valve 78. In a first, illustrated, portion of the valve member, in which flow takes place from the source through the one-way valve to a gauge 14, the gauge will read the maximum pressure. If the valve member is then rotated to a second position, in which flow through the one-way valve is reversed, pressure at the gauge will fall to the minimum at the source and the gauge will then read this minimum pressure. With the valve member in a third position flow takes place through a restricted passage 90 on the periphery of the valve member instead of through the one-way valve. The restriction is varied by rotation of the valve member. In use the member is rotated until a steady reading on the gauge is obtained, which indicates the average pressure.
Patent GB-1452493-A (GB)
Title: Production of tubular ingots
IPC: B22D23/10
Filed: 1973-03-23
Abstract: 1452493 Electroslag refining processes; moulds ASSOCIATED ELECTRICAL INDUSTRIES Ltd 22 March 1974 [23 March 1973] 14136/73 Addition to 1,175,982 Heading B3F In an electroslag process in which a tubular ingot 23 is formed in an annular mould cavity defined by an outer wall 3 and an inner wall 2 having a thickness less than that of the outer wall, the ingot and inner wall 2 are separated as a unitary structure from the outer wall 3 before separating the inner wall from the ingot. To separate the wall 2 from the ingot the wall may be destroyed, e.g. by melting, by dissolving it in a corrosive medium, by an electrochemical process, by machining or grinding, or by erosion by an abrasive slurry. Alternatively a narrow strip of the wall 2 may be cut away and the remainder of the wall collapsed inwards. In another embodiment the skin of solidified slag which forms on the interior surface of the ingot may be removed, e.g. by dissolving it, or broken up, e.g. by vibrating the inner wall 2, to facilitate removal of the wall 2 from the ingot. In a further embodiment the wall 2 is coated with graphite before the start of the process to permit the wall to be drawn or driven out of the ingot by an hydraulic ram. The inner wall 2 may be formed from steel, aluminium, brass or copper and the mould may be constructed as described in Specification 1,175,982. In another embodiment, Fig. 3 (not shown), the inner wall 2 is longer than the outer wall 3 and extends downward through an aperture in the base 4 so that its open lower end communicates with a drain pipe (24) for the cooling water. In another embodiment, Fig. 4 (not shown), the upper and lower ends of the inner wall are sealed and coolant is supplied to and removed from the closed chamber thus formed by pipes (27) and (28). In use the base 4 and inner wall 2 may move downwards to allow the lower end of the ingot to emerge from the lower end of the outer wall 3.
Patent GB-131740-A (GB)
Title: Improvements in Tractors.
IPC: B62D49/08
Filed: 1918-08-31
Abstract: 131,740. Garner, Ltd., H., and Bodman, W. L. Aug. 31, 1918. Axles; secondary frames.-With a view to keeping the centre of gravity as low as possible in agricultural tractors with a large ratio gear reduction, the engine is placed so that the crankshaft 11 is at a lower level than the worm shaft 12 that drives the rear axle, and the forward end of the chassis is supported on a cranked or dropped axle 1. The fuel tank 9 is also placed at the front, and the chassis is lengthened by an auxiliary frame 5 attached to the engine bearers and extending round the front to form a support for the radiator and fuel tank. The front end of the frame 5 is anchored to a transverse spring 3 shackled in the space formed by the dropping of the axle, which is positioned by radius rods 6 attached to fittings on the underside of the enginecrank case.
Patent GB-119295-A (GB)
Title: Improvements in Hauling or Driving Drums or Wheels for Motor Tractors.
Inventor: HODGSON JAMES
IPC: B60B15/02
Filed: 1917-10-02
Abstract: 119,295. Hodgson, J. Oct. 2,1917. Double and multiple wheels arranged side by side; tyres, non- elastic and rims. - Wheels for motor-tractors comprise three or more rims A fitted with tread grips D which may extend across the series of rims, as shown in Fig. 1, or may be separately fixed to each rim, as shown in Figs. 3 and 5. In the latter form, each grip is in two parts flanged to embrace the rim A and secured by through bolts d.
Patent GB-570277-A (GB)
Title: Improvements in or relating to the design of rotary briquette presses
IPC: B30B11/16
Filed: 1943-09-01
Abstract: 570,277. Moulding briquettes in rolling machines. SQUIRE, L. R. L. Sept. 1, 1943, No. 14251. [Class 87 (ii)] In a press of the type having two mould rolls, each with mould recesses in the periphery thereof, the drive to the rolls is split and delivered independently to each of the two rolls, and either of the split portions of the drive has incorporated therein means by which, without removing any of the components, the drive or drives may be temporarily disconnected for the purpose of bringing the mould recesses into accurate registration by rotating one of the rolls independently of the other. Fig. 1 is a plan view of a machine in which each roll 12 is driven from a variable speed shaft 3 by connections including a worm gear 7, a chain wheel or pulley 6 which is common to both worm gears, and a chain or belt 5. Three methods of disconnecting the worm gears are described, in each of which the wheel 6 is, in effect, in two disconnectable parts. In one method, Fig. 3, the worm spindles 19, 20 have keyed thereon flanges 17, 18, which are clamped to a central chain wheel 21 by set-screws 22, 23. The flange 18 has arcuate slots 24 which receive the set-screws 23. In order to adjust the rolls, the set-screws 23 are loosened, thus disconnecting the worm spindle 20 from the wheel 21. The shaft 3 is then turned by means of a hand wheel 8, the spindle 19 and left-hand roll 12 being thus turned, whilst the spindle 20 and righthand roll remain stationary. In the two other methods of disconnection, a free-wheel roller or ball clutch and a free-wheel ratchet device are employed. Fig. 2 shows an alternative drive utilizing bevel wheels 14 to turn the worm spindles. A bevel wheel may be put out of action by unclamping it from a sleeve keyed to a worm spindle, or (Fig. 7) the lock-nuts 47 may be loosened, whereupon by rotating the screw cap 46 the bevel wheet 43 is forced to slide along the key 44 of the worm spindle 45 out of mesh with the bevel pinion. Guides 16, Figs. 1 and 2, take a slide rest carrying appliances for regrinding the rolls and rebuffing the moulds. Specification 5078/99, [Class 87], is referred to.
Patent GB-264383-A (GB)
Title: Combined spanners and pliers
IPC: B25F1/00
Filed: 1926-06-07
Abstract: 264,383. Capper, C. R. June 7, 1926. Pliers.-Combination spanners and pliers comprise a pair of engineers' pliers b with spanner notches d of different sizes in the enlarged ends c of the handles a. In the modification shown in Fig. 3 duplex openings are provided comprising spanner notches d<1>, d<2> of different sizes, Specifications 4684/96 and 7122/04 are referred to.
Patent GB-706843-A (GB)
Title: Improvements in or relating to thermally actuated electric switches
Inventor: EVERITT LAURIE HAROLD RAYMOND
IPC: H01H77/04
Filed: 1950-06-09
Abstract: 706,843. Thermal switches; tumbler switches; automatic circuit-breakers. ASHLEY ACCESSORIES, Ltd. June 11, 1951 [June 9, 1950; June 9, 1950], Nos. 14410/50 and 14411/50. Class 38(5) The switch comprises a trifurcated bimetal leaf spring, the outer limbs of which are corrugated near their ends, the space between being left plain. In one form, Fig. 2, the spring 21 is supported at one end 25 and carries a contact 27 co-operating with a contact 28 on a member 29, which may also be bimetallic for ambient-temperature compensation. The spring may be heated by the current through it or by a heating coil, Fig. 3, (not shown) to snap over centre and open the contacts. In a modification, Figs. 4, 5, (not shown), the spring is mounted at the centre of its outer limbs, and carries a contact at each end. This arrangement may be provided with a dolly acting ori the centre limb, the switch acting as a trip-free circuit-breaker, Figs. 6-8 (not shown). In a further arrangement, Fig. 9, the spring 21 carries a rod 64 which acts on the centre joint 65 of a toggle 57 connecting a contact-carrier 58 and an operating handle 56, the contacts being urged open by a spring 60. Specification 696,816 is referred to.
Patent GB-1500435-A (GB)
Title: Electroless copper plating solution
IPC: C23C18/40
Filed: 1976-03-23
Abstract: 1500435 Stabilizers for electroless copperplating baths W CANNING Ltd 23 March 1976 [8 April 1975] 14412/75 Heading C7F An alkaline electroless Cu-plating solution contains cupric ions, a hydroxide, a complexing agent, formaldehyde, and, as a stabilizer, telluric or tellurous acid or a salt thereof. Examples are given of solutions containing CuSO 4 .5H 2 O, formaldehyde and NaOH, with telluric acid (Examples 1 and 2), sodium tellurate (Example 3) ammonium tellurate (Example 4) and potassium tellurite (Example 5), and as complexing agent Rochelle salt (Example 1), EDTA Na 2  (Examples 2, 5), Rochelle salt/EDTA Na 2  (Example 3), trisodium nitrilotriacetate (Example 4). Examples are also given of concentrates for making up or replenishing the solutions. The plating of surfaces of ABS panels or copperclad boards, after activation with a colloidal Pd suspension, is referred to.
Patent GB-1353517-A (GB)
Title: Production of pure spherical powders
IPC: B22F9/14
Filed: 1971-05-12
Abstract: 1353517 Granulating metals WHITTAKER CORP 12 May 1971 [17 July 1970] 14457/71 Heading C7X Material is granulated from a second electrode 46, whilst rotating it and moving it towards a first electrode 26 by a lead screw 68. The electrode 26 has a removable tip 26' which may be replaced by a glove 36 sealed in the wall 12 of the chamber, through which inert gas is circulated. When the second electrode has been largely consumed, it may be replaced by a third electrode 80 which may be axially aligned with the second electrode and then moved forward to push the remaining part of the second electrode into the chamber. Corresponding ends of the electrodes may have a pin and hole to enable the electrodes to be fixed to each other Fig. 5, (not shown). The second electrode passes through a seal 40 Fig.6, (not shown) and is supported by a rest 42.
Patent GB-505461-A (GB)
Title: Improvements in and relating to foldable cots
IPC: A47D13/02
Filed: 1938-05-16
Abstract: 505,461. Foldable cots ;, trestles. PEABODY & CO. OF LONDON, Ltd., H. W., and BRADY, S. R. May 16, 1938, No. 14522. [Classes 52 (ii) and 52 (iii)] A foldable cot of flexible material has the base formed with a longitudinal flexible extension 8 pivotable about the head edge 20 of the base and forming, when raised and curved over, both the head end of the cot and a hood. The base comprises a sheet of plywood or pasteboard covered on both sides with canvas, the sides 4 are of canvas with top hems 2 containing reinforcing rods, and the foot end comprises a pocket for a sheet of stiffening material, closed by a flap 11. Side flaps 3 secured to the upper edges of the sides 4 have eyelets 9 co-operating with press buttons on the extension 8 to form the sides of the hood. The extension 8 is formed as a pocket for stiffening material. An apron 13 is secured to the foot end of the cot and may be fastened by eyelets 14 engaging press buttons 15. Cut-out portions 16 of the .sides 4 serve as carrying handles and a strap 5 connects the sides and forms a handle when the cot is folded. To fold, the stiffening sheets are withdrawn from the pockets 8, 11 and these parts folded on to the bottom with the apron 13 ; the sides 4 are then folded down and the whole secured by a strap 6. In a modification the hood and side flaps 3 are secured together by a sliding-clasp fastener. The cot may be supported on cross-pieces of a trestle having straps taking through the cut-out portions 16.
Patent GB-554793-A (GB)
Title: Improvements in the production of modified phenol-aldehyde resins
IPC: C08G8/28
Filed: 1941-11-12
Abstract: 554,793. Phenol-aldehyde resins. HERCULES POWDER CO. Nov. 12, 1941, No. 14583. Convention date, April 22. [Class 2 (iii)] Oilsoluble rosin modified phenol-aldehyde resins suitable for use in varnishes are obtained by reacting a phenol-aldehyde condensate with polymerized rosin or a polyhydric alcohol, preferably glycerol, ester thereof. The condensation may be effected with the initial constituents of the phenol condensate, the polymerized rosin being added as such and the product esterified. Phenols specified comprise phenol, o-, m-, or p-cresol, xylenols, mesitols, p-tertiary butyl phenol or amyl phenol, p-phenyl phenol, terpene substituted phenols, terpene phenol ethers or mixture of such. Aldehydes specified comprise formaldehyde, acetaldehyde, paraldehyde, and furfuraldehyde. The condensation may be effected in presence of alkaline or acid catalyst, e.g. sulphuric, hydrochloric, orthophosphoric or carbonic acids; ammonium or sodium hydroxide, triethanolamine, and may be carried out in the cold but preferably between 100 and 220‹ F. Ratios of 1 mol. phenol to ¢-3 mols. aldehyde and 1-9 parts rosin ester to 1 part phenol are suitable The condensation may be carried out in presence of inert solvents, e.g. acetone. In examples (1) a phenol-formaldehyde condensate' is obtained by heating under reflux at 140-150‹ F. phenol (3 mols.), o-cresol (1 moL) formaldehyde (4 mols.) with ammonium hydroxide as catalyst until separation into layers takes place, 100 parts of the separated condensate layer are then added to 600 parts of polymerized rosin dissolved in 150 parts acetone the mixture being heated to 300‹ F. under reflux ; (3) as in (1) but the rosin was first reacted with glycerol ; (5) the glycerine rosin ester was reacted with a p-tert phenol condensate.