baber/WOPTO huggingface dataset:
Patent GB-492604-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/42
Filed: 1937-03-22
Abstract: 492,604. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 22, 1937, No. 8301. Convention date, March 21, 1936. [Class 39 (i)] The electrode assembly 10 ... 13 is mounted on an insulating space] disc 14 by fitting the electrode sup ports into appro priately positionec holes therein, and is connected to the appropriate lead-in wires 4 ... 9 by conductors 17 disposed in the body of the spacer. In the construction described the spacer consists of two mica discs 15, 16 with registering openings and secured together by staples 18. The conductors 17 are placed between the discs and have terminal tabs which are spot welded respectively to the electrode supports and lead-in wires. The spacer may be moulded of ceramic material with the conductors 17 embedded therein.
Patent GB-429704-A (GB)
Title: Improvements in or relating to hand blotters
IPC: B43L17/04
Filed: 1934-03-16
Abstract: 429,704. Blotting-appliances. CASH, J. H., Haderslev, Denmark, and RYAN, P. V., 188, Urmston Lane, Stretford, Manchester. March 16, 1934, No. 8302. [Class 146 (iii)] A hand blotter comprises a resilient member c to one side of which a sheet or pad d of blotting- paper is secured or adapted to be secured, and a handle member g mounted on the resilient member c, the member g being adapted to be supported in a raised position whereby the member c is bowed or arched, or to be moved to lie substantially flat with the member c for packing purposes. The member c consists of two flat pieces of cardboard joined together at the ends, central slots b, f being provided in the two pieces. The handle member g is substantially elliptical and provided with notches h near the ends of the major axis, and with a short tongue at the bottom end of the minor axis. The bottom half of the ellipse is slightly longer than the top half. The handle g is placed in position by being inserted between the flat pieces of the member c, and by engaging the notches h with the ends of the slot b. In use, the handle is raised upright so that the tongue j engages the slot f in the lower part of member c. The pad d of blotting- paper is secured to the member c by staples.
Patent GB-350910-A (GB)
Title: Machines for rolling dough or the like plastic material into rolls or like elongated shapes
IPC: A21C7/02
Filed: 1930-03-15
Abstract: 350,910. Moulding dough &c. by rolling - machines. ENERGEN FOODS CO., Ltd., Energen Works, Willesden, and SUTTON, G. J., 14, Victoria Street, both in London. March 15, 1930, No. 8355. [Class 87 (ii).] Dough and other plastic substances are rolled and stretched into elongated forms by a cylindrical drum 13, Fig. 5, driven by worm gearing and co-operating with a member composed of arcuate elements 17, 18, 19 forming a channel whose depth diminishes progressively in a peripheral direction. The arcuate elements have end flanges seating in grooves 20, Fig. 4, and are clamped by screws 26 mounted in bridge members 22. The drum has a series of longitudinal grooves and the arcuate elements are provided with ribs of chevron form to stretch the dough &c. in an axial direction, the angle between the ribs increasing progressively from the inlet to the discharge end to correspond with the reduction in cross section of the dough &c. The dough lumps are fed along a table 32, Fig. 1, and into the machine by way of a shoot 30, 31 and are discharged from a shoot 41. The shoot 31 is carried by a shield 35 pivoted at 36 and adapted to be lifted by a handle 40.
Patent GB-1245973-A (GB)
Title: Improvements in and relating to locking devices for rotatable members
Inventor: FORSTER ARTHUR DOUGLAS
IPC: F01D21/00
Filed: 1968-02-21
Abstract: 1,245,973. Positive detents for rotary elements. C. A. PARSONS & CO. Ltd. 12 Dec., 1968 [21 Feb., 1968], No. 8402/68. Heading F2E. A locking assembly comprises two relatively rotatable members 4, 1, fitting one inside the other in threaded engagement, and a device, for effecting locking between them, comprising a spring-loaded member 5 which engages both members when in a locking position, and is movable to unlocking position by axial movement against the spring 6, and by rotation, an associated grub-screw 8 being located in one of the relatively rotatable members, (e.g. member 1), and being capable of restraining the spring-loaded member 5 against axial movement from the unlocking position. As shown, the invention is applied to an overspeed trip device for a steam turbine. A casing 1 is mounted on the shaft of a turbine, so as to rotate therewith, and is so orientated that a pin 2 within the easing is directed outwards. The pin 2 is a striking-pin, and moves under the action of centrifugal force, in operation against the action of a spring 3 (by means not illustrated) so that if the speed of the turbine shaft exceeds a certain value, the pin strikes a trip lever (not illustrated) which shuts down valves controlling the flow of steam to the turbine. The amount of movement of pin 2 for a given magnitude of centrifugal force can be adjusted by adjusting the spring force, which is effected by screwing in or out a threaded plug member 4. To secure plug 4 and casing 1 together while the turbine is rotating, yet permit ready adjustment when the turbine is at rest, the plug 4 has a larger portion 4a provided with peripheral recesses 7, Fig. 2, which co-operate with a locking device 5, 6, 8. In the locking position, Figs. 1 and 2, the member 5 is urged upwards by a spring 6 so that a part of it only partly reduced in diameter by a flat 5a (see also Fig. 6) engages in one of the recesses 7. The member 5 is retained against further upward (effectively, outward) movement by engagement of a fixed grub screw 8 with the horizontal surface at the lower end of the flat 5a The member 5 is also prevented from rotation, by this means. For unlocking, member 5 is pressed downwards until a cylindrical portion 5b of reduced diameter lies opposite the grub screw 8, Fig. 6. The member 5 is now rotated until the stepped portion, formed where portion 5b adjoins the other portion, lies under the end of the grub screw, also shown in Fig. 6. The downward pressure on member 5 may now be released so that spring 6 urges it upward against grub screw 8 in its lowered position.
Patent GB-841952-A (GB)
Title: Production of dihydrostreptomycin by fermentation
Filed: 1957-03-14
Abstract: Dihydrostreptomycin is produced by cultivating a dihydrostreptomycin-producing strain of Streptomyces humidus (Nov. Spec.), or a natural or induced mutant or a variant thereof in an aqueous nutrient medium under aerobic and preferably submerged aerobic conditions.  The medium contains a source of (a) carbon (b) nitrogen (c) inorganic salts (d) growth promoters and, if desired, precursors and penicillin broth or mycelium.  Specified carbon sources are glucose, starch, lactose, fructose, sucrose, manrose, dextrin, glycerin and maltose.  Nitrogen sources are soyabean meal, meat extract, peptone, peanut powder, casein, amino acids, yeast, bran, corn-steep liquor, urea, cotton seed powder, soybean meal HCl-hydrolyzate, nitrate and ammonium compounds. Inorganic salts and trace metals are sodium chloride, calcium carbonate, potassium mono- or dihydrogen phosphate, magnesium sulphate, zinc sulphate, manganese sulphate, ferrous sulphate and copper sulphate.  A temperature of 24 to 30 DEG C. and cultivation for 3 to 8 days is suitable. Dihydrostreptomycin is isolated from the clarified broth by means of (a) adsorption (b) extraction with a water-immiscible organic solvent (c) formation of insoluble compound of the antibiotic (d) ion-exchange resins (e) dialysis and (f) countercurrent distribution. Adsorption may be on active carbon, alumina or silica gel, the antibiotic being eluted therefrom with an acids olvent e.g. methanolic hydrochloric acid of pH 2,0.  Extraction may be with a water-immiscible solvent such as n-butanol isoamyl alcohol and chloroform, preferably at pH 7,5 to 9,0, followed by re-extraction with aqueous acid.  The organic solvent may contain a fatty acid of 12 to 18 carbon atoms e.g. lauric acid to assist extraction. Insoluble compounds of the antibiotic are produced with phosphotungstic acid, helianthine, alkyl or aralkyl sulphonic acids, acid azo compounds such as p-(p1-hydroxyphenyl)-azobenzene sulphonic acid, sodium p-(dimethylamino)-azo-benzene sulphonate and polyhalophenol compounds such as pentachlorophenol.  A cation carboxylic acid ion exchange resin such as amberlite 1RC-50 may be used in method (d), followed by elution with hydrochloric acid.  The above methods may be combined.  The product of the invention was identified as dihydrostreptomycin by comparison with authentic specimens of dihydrostreptomycin.
Patent GB-1508075-A (GB)
Title: Darts
IPC: A63B65/02
Filed: 1976-03-03
Abstract: 1508075 Darts ROBAN JIG & TOOL CO (UK) Ltd 3 March 1976 08500176 Heading A6S A stub shaft 16 mounting dart flights 20 is journalled in a main shaft 12 secured to or integral with a dart barrel 10. The stub shaft 16 has a pin 15 at its forward end with an enlargement 17 which is a press fit in a bore 14 of the main shaft 12. Four flights 20, having chamfered rear edges 21, are friction fitted between jaws at the rear of the stub shaft, the jaws forming slots 18 with ribs 19 between which the flights are slidden. The main shaft, &c. may be moulded from plastics. When the dart has been thrown at and lodged upon a dartboard, if a following dart hits the chamfered edge 21 of one of the flights 20, the stub shaft 16, &c. is turned in the main shaft 12.
Patent GB-472484-A (GB)
Title: Improvements in or relating to magnets
IPC: H01F7/02
Filed: 1936-03-23
Abstract: 472,484. Magnets. BOSCH AKT.-GES., R. March 23, 1936, No. 8572. Convention date, March 23, 1935. [Class 35] [Also in Group XXXIX] In a magnet assembly including permanent magnets of the type in which the coercive force is increased by mechanical stress, the clamping device for maintaining the distortion of the magnet consists of ferromagnetic material magnetized in the same direction as the permanent magnet and of such coercive force and length that the magnetomotive force of the clamping device is as great as that of the deformed magnet. In Fig. 1, two tubular magnets a, b welded together at c are oppositely torsioned and secured by a wedge-shaped ring d. Instead of the ring, a material which may be non-magnetic, e.g. copper, fills the space between the tubes. Flutings may be formed on the contacting surfaces of the magnets or holding member. Fig. 5 shows four double magnets n, o, p, q, applied to a dynamic loudspeaker and held between the upper poleplate s and a base plate. In another form, four single tubular magnets are employed so that the torsional stresses balance. The magnets may consist of a large number of torsioned wires.
Patent GB-257307-A (GB)
Title: Improvements in telephone exchange systems
IPC: C21C5/44
Filed: 1925-03-31
Abstract: 257,307. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.), (Polinkowsky, L.). March 31, 1925. Drawings to Specification. Automatic exchange systems.-A register-controller comprises relay counting chains, each of which serves first for recording a dialled digit and later for counting off a complementary or translated number of reverting impulses from a selector. Each chain consists of six pairs of relays, the arrangement being such that it takes ten impulses to bring the chain to a condition in which all the relays are energized. The impulses at first build up the chain from its second pair, the fifth impulse locking up the sixth pair, which unlocks the previous pairs and diverts succeeding impulses so as to build up the chain afresh from the first pair. The reverting impulses complete the building up of the chain from the condition in which the dialled impulses left it. The number of chains provided is one less than the number of digits dialled, the first chain after performing its original duties being released in time to record the final digit. The register-controller performs a non-decimal translation involving differentiation between odd and even values of some digits and in certain cases the addition of ten to the units digit. The former duty is taken care of by auxiliary translating relays, which are energized in particular settings of the chains and add a unit to or subtract a unit from the settings, and the latter by connecting the first chain during its units conrolling operation in tandem with the second chain, the relays of the second chain being at this time all de-energized or all energized accordingly as the additions of ten units steps is or is not necessary. The system by which the invention is illustrated is the same as that shown in Specification 256,544.
Patent GB-313994-A (GB)
Title: Improvements in or relating to multiple way rotary valves
IPC: F16K11/083
Filed: 1928-03-21
Abstract: 313,994. Taylor, F. A. March 21, 1928. Multiple - way plug cocks.-A multiple-way rotary plug valve more particularly for use in baseexchange watersoftening apparatus comprises a casing 1, Fig. 1, having a plurality of ports 2 - - 6 all arranged in one longitudinally extending zone and a rotary plug 11, Fig. 2, having a plurality of separate angularly - displaced longitudinal recesses, as shown, each being brought into register with the casing ports in succession on rotation of the plug. The lower end of the plug is formed with inclined cam recesses 15, Figs. 2 and 3, corresponding to the number of circumferential recesses in the plug with corresponding abutment members, for example adjustable screws 16, on the casing; alternatively, the cam recesses are formed in the casing in conjunction with projections below the plug. This arrangement causes an axial unseating of the plug each time it is moved, which gives easy turning and also allows the closure surfaces to be washed by the liquid; the washing liquid and any leakage gathers in a chamber 27, Fig. 5, below the plug and is discharged automatically through a bore 28 in the casing or may be drained away by a cock 29. The plug is rotatable in one direction only by a handle 22 and a ratchet-device 23. An indicating- finger 26 and dial-plate 24 are used. The cam recesses 15 are formed with a vertical side also to prevent reverse rotation. The port 6 in the casing is connected to the main water supply and the port 5 leads to the points of use. The ports 2, 4 are connected to the top and bottom respectively of the water-softening apparatus, the port 3 being provided with a drain connection.
Patent GB-638728-A (GB)
Title: Improvements in and relating to check or non-return valves
IPC: F16K15/06
Filed: 1948-03-24
Abstract: 638,728. Valves. MIDLAND INDUSTRIES, Ltd., and JORGENSEN, E. March 24, 1948, No. 8623. [Class 135] A check valve comprises a hemisphericalshaped closure member a provided with a stem b located within and guided by a spring disposed between the stem and a screwed cap c. The axis of the closure member is preferably arranged at an angle of 45 degrees to the fluidflow passage g, g<SP>1</SP>. According to the Provisional Specification, the closure member is preferably made of corrosion-resisting steel and loosely mounted on the stem.
Patent GB-583169-A (GB)
Title: Improvements in apparatus for the measurement of viscosity
IPC: G01N11/08
Filed: 1943-05-31
Abstract: <PICT:0583169/III/1> In apparatus for continuously manufacturing lubricating grease, preheated soap stock is fed from a line 17 and preheated oil from a line 18 to a mixer 19.  A fraction of the output is bled by a line 1 to a viscosimeter 21, (see Group XIX), and then returned to the mixer.  The viscosity reading automatically controls the soap or oil supply control valve by means not shown.
Patent GB-270870-A (GB)
Title: Improvements in or relating to boxes or containers
IPC: B65D5/52
Filed: 1926-03-31
Abstract: 270,870. Stranders, J., and Wood & Co. (Printers, Ltd.), E. J. March 31, 1926. Boxes formed from special blanks; boxes formed of separate bodies combined side by side; boxes combined with means for displaying advertisements &c. - A display box formed from a single blank comprises two hingedly connected receptacles each formed of a base, two sides and a front and back of unequal sizes, the two receptacles being adapted to fold together to form the closed box or to be opened out to stand on the same base to display the contents. As shown, the two receptacles are hinged together along the line EF and the fronts 4, 5 of the receptacles 1, 2 respectively are smaller than the backs 3, 6 thereof, so that the goods are easily displayed. The back 6 of the rear receptacle may be provided with a folding display flap V which, when the box is closed may be tucked under the front 4 to secure the parts together.
Patent GB-488315-A (GB)
Title: Improved method of and means for producing bent laminated timber and the like material
IPC: B29C49/44
Filed: 1937-03-25
Abstract: 488,315. Bending laminated material. ALESBURY, D. L. March 25, 1937, No. 8855. [Class 145 (ii)] [Also in Group VIII] Laminated timber or other material is bent by securing the laminae c to a former b whilst the adhesive between them is wet or plastic and then placing the former and laminae in a flexible bag or container a which is exhausted of air, the resulting action of the atmospheric pressure being maintained until the adhesive has set. A heater, such as electric resistance elements f in an asbestos-lined tray g, may be arranged in the container a.
Patent GB-654359-A (GB)
Title: Improvements in or relating to dry shaving devices
IPC: B26B19/16
Filed: 1947-04-01
Abstract: 654,359. Dry shavers. O'HANLON, P. H. April 1, 1947, Nos. 8891, 16104 and 16677. [Class 131] In a dry shaver, of the kind comprising a slotted, stationary guard plate having a part cylindrical surface and one or more co-operating cutters continuously rotated about the axis of curvature of the guard, the length of the guard plate in the direction parallel to the axis of rotation of the cutter is small compared with the diameter of the cylindrical surface swept by the cutting edge of the cutter and the slots in the guard plate and the cutting edge of the cutter are parallel to the axis of rotation and at right angles to the general direction of the handle. As shown, the shaving head 5 comprising a cup-shaped guard member having a plane sidewall 6 and a peripheral guard plate 7, slotted at 8 in its thinner region, is received in the top end of the casing which houses an electric or a clockwork motor. A detachable cover 10 is a press-fit in an annular flange 9 and is apertured at 45 for the evacuation of cut hair. The spring- urged, U-shaped cutters 14 have cutting edges skewed to the slots 8 and are freely mounted on a spindle 12 secured to the drive shaft 11 on which is also mounted a fly wheel 19 which may be outside the casing. Several modifications of the cutters are described. A further modification is shown in Fig. 9 in which the cutters 33 having edges 16 oppositely skewed to the slots 8 are set in a hub portion 32 the shaving head consisting of two semi-cylindrical parts 7a, 7b secured together and to the casing 1 by means of integral lugs 31. Impeller means to blow the hairs through these apertures may be provided. Provisional Specification 654,359 describes a dryshaver of the type shown in Fig. 9 and having an octagonal blade-carrying member which may be arrested by a thumb-operated brake. A rearwardly projecting spring steel blade is mounted on each flat face and a rectangular block steel cutter, the outer wall being ground to the inside curvature of the part 7a, is secured to the free end of the spring blade.
Patent GB-823235-A (GB)
Title: Preparation of a zinc dialkyl dithiophosphate product
IPC: C07F9/165
Filed: 1956-03-22
Abstract: A zinc dialkyl dithiophosphate product particularly adapted for use as an improvement agent for lubricating oils is obtained by reacting phosphorus pentasulphide in a molar ratio of substantially 1 to 4 with an alcohol ROH wherein R is a higher alkyl radical of 6 to 18 carbon atoms at elevated temperature to form a reaction product containing a dialkyl dithiophosphoric acid, treating the reaction product with an alcohol having the formula R1OH wherein R1 is a lower alkyl radical having up to 4 carbon atoms at about 170 DEG  F. to about 200 DEG  F. for from about 1/2 to about 2 1/2 hours, neutralizing the product with a compound containing zinc to form a reaction product containing the zinc dialkyl dithiophosphate and ageing said reaction product by subjecting it to a temperature within the range of from about 140 DEG  F. to 195 DEG  F. for from about 1/2 to 6 hours.  Specified higher alcohols are 4-methyl-2-pentanol (methylisobutylcarbinol), n-hexanol, n-octanol, iso-octanol, dodecanol, hexadecanol and octadecanol and specified lower alkanols are methanol, ethanol, propanol, isopropanol and butanol. The amount of lower alkanol may be from about 5 to 25% of the weight of the higher alkanol originally reacted with the phosphorus pentasulphide. The neutralization with the zinc compound may be effected by adding up to 150% of the theoretical excess of a zinc compound such as zinc oxide or hydroxide until a hydrogen sulphide test is negative.  The neutralized, aged product may be blended with other additives such as silicone oil anti-foam agents, detergents such as sodium or barium petroleum sulphonate, dropped to a still, stripped, and then filtered.  A blending oil (hydrocarbon lubricating oil) may be added before or during the neutralization or after the stripping or filtering to bring the concentration of the additive to a desired range.  In the examples given, methyl isobutyl carbinol is used as the higher alkanol and ethanol, isopropanol and n-butanol respectively as the lower alkanol.
Patent GB-180275-A (GB)
Title: Improvements in joints for bedsteads and mattress frames
IPC: F16B12/60
Filed: 1921-03-16
Abstract: 180,275. Garnett, N. March 16, 1921. Mattresses; joints.-Rotatable but non-removable threaded bolts 11 are provided with reduced necks forming shoulders 12, the necks being engaged by the sides 13 of open-ended slots piovided in the end members 8 or in plates riveted to the sides 10. The end members 8 of the mattress frame may be of angle section with the angle directed upwards and may have flattened ends 8<1> riveted at 9 to the side members 10.
Patent GB-668914-A (GB)
Title: Arrangement for comparing two periodically recurring cycles of events for measuring or regulating purposes
IPC: B41F13/02
Filed: 1950-04-12
Abstract: 668,914. Photo-electric control systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. April 12, 1950 [April 25, 1949], No. 8990/50. Class 40 (iii). [Also in Group XXXV] To measure or control the phase relation between two mechanical or electrical cycles, two photo-cells receive light beams from one cycle and act as gates for electrical pulses generated from the other cycle to produce pulses corresponding to the phase relation. As applied to a multi-colour printing process, the paper web 2, Fig. 1, is fed from one colour printing roller 1 beneath photo-electric cell 8 which is affected by marks 26, Fig. 2, on the paper; the paper passes over rollers 3, 4, 5 to a second printing cylinder 7 which carries a disc 10 having juxtaposed apertures 12 and mirrors 13, Fig. 2, for transmitting light from a source 11 alternately to two cells 16, 17. The cells 16, 17 act as gates, being conductive for the periods of their illumination a1, b1, Fig. 3, so that each cell passes part of the pulse c1 developed by cell 8 (cell 21 in Fig. 2). If the cells 16, 17 pass equal portions of pulse c1, no resulting signal occurs, but if the pulse c1 is not precisely bisected, a signal results which can be applied over amplifier 28, Fig. 1, to control a motor 6 to adjust jockey wheel 4 and thus the length of web between printing cylinders 1, 7, to obtain exact registration.