baber/WOPTO huggingface dataset:
Patent GB-481898-A (GB)
Title: Improvements in or relating to the production of glutamic acid and glutamates
Filed: 1936-09-19
Abstract: Glutamic acid is obtained by treating the seaweeds Ulva Latissima, Porphyra Vulgaris, and Alaria Esculenta, which contain little iodine, with a strong mineral acid.  The comminuted, washed seaweed is treated with about 10 parts 10 per cent HCl to 1 part seaweed at about 100 DEG  C. for 3-4 hrs.  Boiling water is added, the mixture filtered hot, and the liquid extract evaporated to about 1/10 th the original quantity.  Excess of HCl is added and the solution heated for a further 3-4 hrs.  After dilution and filtration, the filtrate is concentrated to the precipitation point, and concentrated HCl added to precipitate glutamic acid hydrochloride, or treated with a soluble copper salt to precipitate copper glutamate which is converted into glutamic acid with H2S or into sodium glutamate with Na2CO3.
Patent GB-596654-A (GB)
Title: Improvements in or relating to pulse modulation communication systems
IPC: H03K7/08
Filed: 1944-12-20
Abstract: 596,654. Pulse-generating circuits. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and BENEY, J. K. Dec. 20, 1944, No. 25593. [Class 40 (v)] A multi-vibrator circuit for producing pulses of variable duration is controlled by a saw-tooth wave-form which initiates regenerative action during the fly-back period to,form the leading edge of the pulse, while variable biassing means determine the instant at which regenerative action occurs in the reverse sense to form the trailing edge of the pulse. Fig. 1 shows a double-triode valve arranged as a multivibrator with a saw-tooth waveform applied at terminal 25. At the termination of the flyback, potentiometers 18, 19 hold their associated grids near cut-off and saturation respectively, and as the saw-tooth wave form increases from zero, the fall in voltage at anode 5 is kept small by the action of common cathode resistor 8 until the potential at grid 4 is lowered by reaction through capacitor 24 to the point where conduction becomes sensitive to grid voltage changes. Regenerative action then sets in to drive the 2nd section of the valve rapidly beyond cut-off and this condition persists until the fly-back stroke on grid 3 initiates regenerative action in the reverse direction to form the leading edge of the next pulse. Negative pulses appear at terminal 29 and positive pulses of an inferior form may be taken from anode 5. Biassing potentials at grids 3, 4 determine the pulse width which may be pre-set by potentiometers 18, 19 or time modulated by applying oscillatory signals to terminals 32 or 35. A differentiating network 30, 31 may also be included to give pairs of short-marking pulses with modulated separation. Specification 596,638 is referred to.
Patent GB-973916-A (GB)
Title: 20-esters of 6ª-bromo-í¸-pregnen-20ª-ol-3-one and the manufacture of í¸-pregnene-6.20ª-diol-3-one and allopregnan-20ª-ol-3.6-dione
IPC: C12P33/00
Filed: 1962-07-04
Abstract: The invention comprises the 20-acylates of 6b -bromo-D 4-pregnen-20b -ol-3-one, a process for the preparation of D 4-pregnene-6b , 20b -diol-3-one by 6-hydroxylating microbiologically D 4-pregnen-20b -ol-3-one or a 20-acylate thereof, for example with enzymes of the fungi Chaetomium funicolum or Rhizopus nigricans, a process for the preparation of D 4-pregnene-6b , 20b -diol-3-one 20-acylate by treating a 3-enol acylate of a D 4-pregnen-20b -ol-3-one 20-acylate with a percarboxylic acid, and a process for the preparation of allopregnan-20b -ol-3, 6-dione or a 20-acylate thereof by (i) treating a D 4-pregnen-20b -ol-3-one 20-acylate with N-bromosuccinimide to form a 20-acylate of 6b -bromo-D 4-pregnen-20b -ol-3-one and treating this compound with alcoholic-aqueous mineral acid, (ii) treating a 3-enol acylate of D 4-pregnen-20b -ol-3-one 20-acylate with N-bromoacetamide to form the compound as in (i) and treating this compound as in (i), or (iii) treating D 4-pregnene-6b -, 20b -diol-3-one 20-acylate with alkali; followed in any case, if desired, by acylating the 20-hydroxy group to form the 20-acylate. Specification 955,641 is referred to.
Patent GB-368272-A (GB)
Title: Improvements in and relating to electric negative resistances
IPC: H03F3/62
Filed: 1930-08-28
Abstract: 368,272. Generating and amplifying oscillations. HABANN, E., 44, Stargarderstrasse, Berlin. Aug. 28, 1930, No. 25754. Convention date, July 10. Addition to 367,790 and 368,270. [Class 40 (v).] In a resistance as claimed in the parent Specification and applicable for generating and amplifying electric oscillations, the contact substance comprises one or more of the compounds, titanic anhydride, manganese oxide, chromium oxide, iron oxide, tungstic acid, or tin dioxide. Preferably two or more of these oxides are mixed with zinc oxide. A small quantity (2 to 10 per cent or less) of cuprous oxide, uranium oxide, or vanadic anhydride may be added as a catalyst, as claimed in Specification 368,770. The resistance may be cooled to the temperature of -120‹ C. or lower. The cross-section should be larger than usual, as the current density is not uniform.
Patent GB-374723-A (GB)
Title: Process for the production of rubber and ebonite coatings with rough, shagreened, or the like surfaces
IPC: B29C37/00
Filed: 1931-09-14
Abstract: Articles particularly of metal, are coated with rubber exhibiting a rough, shagreened or like surface, by applying to the article, preferably roughened, a liquid rubber mix containing vulcanizing agents, and, if desired, accelerators, fillers, &c., in the form of fine drops, in such quantity that the drops cannot coalesce into a smooth layer, drying, and vulcanizing.  The application may be made by spraying, the character of the surface being controlled by the size of the nozzle or by the spraying pressure.  The layer may be applied directly to the article, or a layer of adhesive may be interposed.  Ornamental effects may be obtained by the consecutive use of mixes of different colours. According to an example 100 parts of 60 per cent latex, 25 parts of sulphur, and 2 parts of vulcazit 576 are sprayed on to an etched brass sheet until the droplets just touch each other. After drying for two hours, the coating is vulcanized at 150 DEG  C. Numerous articles are specified as suitable for coating in this manner, including optical and electrical apparatus, handles, wheels, &c. which require a non-corrosive surface and non-slip grip.
Patent GB-259143-A (GB)
IPC: B41L1/00
Abstract: 259,143. Manifoldia, Ltd., and Plant, J. P. Aug. 25, 1925. Cutting-apparatus; winding webs. -A rotary machine for producing printed stationeiy in the form of a web wound upon a core comprises a frame with a bracket 3 for supporting a supply roll of paper, guide rolls for leading the web to an impression roller 8 coacting with a numbering-roller 9, such as is described in Specification 28690/13, and a printing-roller 10, punching rollers 13, 14, for perforating the web, a counting device 64 for indicating the number of units printed, a hand or pedaloperated guillotine cutting-blade 22, and receiving spindles 28, Fig. 4 for cores 27 upon which the printed webs are wound. Means for ruling the paper may also be added, and rollers 17 for forming longitudinal perforations may be arranged near the cutter 22. Springs 23 keep the blade 22 in contact with a guide, and a fixed cutter 26 co-operates with the blade 22. Two receiving spindles 28 are mounted in swinging frames 29 pivotally mounted upon a shaft 30, one frame 29 being made in three parts 31, 32, 33 angularly adjustable around the shaft 30 to provide for the alignment of the receiving spindles 28. Two of the bearings 36 for the spindles 28 are movable longitudinally by a pin 43 on a slide 42 which is operated by a crank 41 and a shaft 39 operable by a lever 40. The cores 27 are gripped between tapering centres 46, 48, of which the one 46 is held in place by screws, and the other 48 is mounted so as to be capable of quick release, being formed of an inner member keyed to the spindle 28, and an outer member connected thereto by a ball fitted in a tapering slot in the inner member. Locking-devices 56, 57 are provided for holding the frame 29 in positions for winding up the web, and for changing the cores 27. The winding- spindle 28 is driven by gears 34, 83 and a sprocket wheel 81 driven by a friction clutch 77, 78, 79 controlled by a nut 84 which can be set to permit of slip. The machine can be converted into a machine for producing multiple stationery as described in Specification 258,998.
Patent GB-1163067-A (GB)
Title: Improvements in or relating to Malting
Inventor: STOWELL KEITH CHRISTOPHER
IPC: C12C/
Filed: 1967-07-21
Abstract: 1,163,067. Grain de husking process and apparatus; regulating malting. A.B.M. (MALTING) Ltd. 10 July, 1968 [21 July, 1967; 27 Feb., 1968; 30 May, 1968], Nos. 33680/67, 9362/68 and 25925/68. Heading A2Q. [Also in Divisions B8, C6 and E2] A process of preparing malted cereal grain comprises the steps of removing husk from the grain by a dry mechanical method damaging the grain so that substantial rootlet growth is prevented without substantially damaging the aleurone layer, and malting the dehusked grain. At least 95 per cent of the total husk is removed, and between 50 and 100 per cent of this may be introduced into, say, a combined mashing of dehusked malted grains (25-50 per cent) and normal malted grains (remainder). Gibberellic acid and potassium, sodium or calcium bromate may be employed in lower amounts (stated) than normal to regulate the malting of the dehusked grain, and the steeping and sprinkling are taken to between 1 and 2 per cent below the normal moisture requirements. The embryo may be removed from the grain after the malting. A layer of grain (moisture content 8-16 per cent) between 1 foot and 2 feet 6 inches in depth is dehusked in a frustoconical (or hemispherical) bowl 44, Fig. 2, by a rotor 18 inches in diameter rotating at a constant blade tip speed between 100 and 400 ft sec. (1500-5000 r.p.m.) The rotor comprises two blades which together present a generally S-shaped profile in plan view (Fig.4, not shown). Each blade has a blunt leading edge which is flame-cut, radiused and polished, and a trailing edge which is flame-cut and rough ground. The upper face of each blade may slope downwardly towards the tip (Fig 5, not shown). The temperature of the grain during husk removal should not rise about 105‹F.
Patent GB-647384-A (GB)
Title: Improvements in and relating to gas turbine blading
Inventor: FRANKEL ADOLF
IPC: F01D25/14
Filed: 1948-10-05
Abstract: 647,384. Turbine blades. ENGLISH ELECTRIC CO., Ltd. Oct. 5, 1948, No. 25932. [Class 110(iii)] Rotor blades 6, 8, 10, 12 have fir-tree roots inserted in transverse grooves in the rotor periphery and have platforms which abut and so completely screen the rotor. The stator blades 5, 7, 9, 11 have bulb roots and have platform extensions which abut. Specifications 635,665, 647,385 and 647,386 are referred to in the Provisional Specification.
Patent GB-267827-A (GB)
Title: Improvements in or relating to golf bags, hand bags, and the like
IPC: A63B55/20
Filed: 1926-10-19
Abstract: 267,827. Stocks, D. Oct. 19, 1926. Bags for golf clubs.- Relates to the construction of the external pockets of golf bags. The flap 9 is hingedly connected to the backing at a position below the level of the mouth of the pocket so that in closing and securing the flap the pocket mouth is doubled over, and, to prevent tampering with the contents, the front portion of the pocket is stiffened by the interposition of a sheet 15 of material between the front of the pocket and the lining 16. The lower portion of the flap 9 may be similarly stiffened.
Patent GB-322758-A (GB)
Title: Improvements in or relating to packing machinery
IPC: B65B19/14
Filed: 1928-09-11
Abstract: 322,758. Dick, W., Cuthbert, D. D., and Molins Machine Co., Ltd. Sept. 11, 1928. Packeting by wrapping-up. - Cigarettes are packed in a U-shaped block ended packet and closed by pressing a tongue formed in the closure flap into a slit on a broad side of the packet, the pressing being effected by an element movable in the direction of movement of the package. The packets 1 are fed by pushers along a table 4, the flap 5 being turned up by a folder 8, Fig. 5, while a plate 10 holds the packet on the table. A depending portion 11 of the plate engages the portion 5<a>. At a later stage in the travel of the packet, shown in Fig. 4, the plate 10 is reduced in section to a flat spring 12, and the plate 11 is tapered into a thin triangular strip 11<a>, Fig. 7. A spiral folder 9 continues the turning over of the flap 5. A presser plate 15, Figs. 6 and 7. with a rounded extension 15<a>, is now actuated to depress the surface of the packet so that the tongue on the flap 5 can be thrust into the slit 14, Fig. 8. The plate 15 is pivoted at 20 to a coupling rod 16 on cranks 17 which are rotated so that the linear speed of the presser plate corresponds to that of the packet through the machine. A cam-operated finger 23<a> effects the insertion of the flap into the slit. Specification 227,934 is referred to.
Patent GB-188479-A (GB)
Title: Improvements in sliding windows, shutters or the like
IPC: E06B3/44
Filed: 1921-10-03
Abstract: 188,479. Daulman, G. L. Oct. 3, 1921. Holders for sliding windows.-Unbalanced window sashes are held in position by the engagement of a spring- pressed ball D carried by a casing D' on the sash, in pear-shaped depressions C<3> in a strip of metal C secured to the frame. The shape of the cup-like depressions C<3> renders it more easy to raise the window than to depress it, the strength of the. spring D<2> being sufficient to enable the ball or balls D to support the weight of the window when engaging the large parts of the pear-shaped depressions. The balls may be mounted on the frame and the strip C on the sash.
Patent GB-318622-A (GB)
IPC: B60C7/12
Filed: 1929-08-28
Abstract: 318,622. Harter, L. Sept. 8, 1928, [Convention date]. Non - metallic elastic bodies; tread surfaces.-A rubber tyre is formed with a tread of V-section and a rim-seating portion having inclined surfaces rising towards the edges and centre of the tyre, the vertices e<1>, e<2> of the rim-seating portion being disposed nearer the mid-plane of the tyre than the vertices f<1>, f<2> of the tread portion. Fig. 1 shows a solid tyre, and Fig. 2 a typical cushion tyre vulcanized to a metal rim g.
Patent GB-638439-A (GB)
Title: Improvements in dust arresters
IPC: B24C9/00
Filed: 1947-09-27
Abstract: 638,439. Dust arrester. ST. GEORGE'S ENGINEERS, Ltd., and WILSON, F. W. Sept. 27, 1947, No. 26199. [Class 78 (i)] A dust collector includes a pipe B arranged below the dust-collecting hopper or hoppers A ; a discharge outlet from the hopper connected by valve a to the pipe ; a screw conveyer c mounted in the pipe ; an outlet door b<SP>2</SP> at one end of the pipe, the other end of the pipe being closed ; and means to supply water to the pipe to convert the dust into sludge. As shown, dust falls from hoppers A through valve a into pipe b where it is mixed with water from supply d and, with outlet b<SP>2</SP> closed, churned by screw C to form sludge which is then discharged through the outlet b<SP>2</SP>. The screw C is provided with paddles c<SP>1</SP> to increase the mixing action and is rotated by means of a chain wheel or pinion c.
Patent GB-1219209-A (GB)
Title: Improved process for manufacturing titanium trichloride, the catalysts obtained thereform and their uses in the polymerization of polymerizable monomers
Inventor: PHUNG NHU HUNG
IPC: B01J27/06
Filed: 1968-05-31
Abstract: 1,219,209. Olefin polymerization catalyst. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 31 May, 1968 [1 June, 1967], No. 26271/68. Heading C3P. [Also in Division C1] Stereospecific polymers, e.g. of α-olefins are prepared using a catalyst of active titanium trichloride (see Division C1) and organoaluminium compounds. Isotactic polypropylene is prepared using a catalyst of TiCl 3  and Al(C 2 H 5 ) 2 Cl in heptane, at 50 C. at a pressure of 385 mm. Hg. The polymerization was stopped by adding alcohol containing hydrochloric acid.
Patent GB-794447-A (GB)
Title: Drying of tows of artificial filaments
Inventor: JONES ROBERT EDWARD
IPC: D01D10/04
Filed: 1955-09-14
Abstract: 794,447. Drying. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Sept. 12, 1956 [Sept. 14, 1955], No. 26299/55. Class 34(2) In apparatus for drying tows of artificial filaments, e.g. polyethylene terephthalate filaments, the tows are placed in a container 1 having a perforate lid 3 and bottom 2, and a current of hot air is blown through which causes an annular plate 4 to rise to compact the tows so that they are dried uniformly and without tangles. The annulus 4 may be replaced by a perforate plate.
Patent GB-504887-A (GB)
Title: Transmission systems
IPC: H03F3/36
Filed: 1938-09-09
Abstract: 504,887. Scrambling. STANDARD TELEPHONES & CABLES, Ltd. Sept. 9, 1938, No. 26383. Convention date, Oct. 5, 1937. [Class 40 (iv)] [Also in Group XL] A wide band of frequencies, e.g. 0-2 megacycles, is modulated by a plurality of frequencies which are harmonics of a basic frequency higher than the highest frequency in the original range. An oscillator 1, Fig. 1, produces a frequency of 2À5 megacycles and harmonics of 7À5 and 5À0 megacycles are produced at 2. The 7À5 megacycle frequency modulates the range applied at A in 3, and a filter 4 suppresses the upper side-band, so that a range of 5À5-7À5 megacycles is applied at 5 for modulation by the 5À0 megacycle frequency from 2. The upper side-band is suppressed at 6, giving a range 0À5-2À5 megacycles which is inverted with respect to the original range at A. At the receiver, Fig. 2, the range 0.5. 2À5 megacycles is applied at 8 to select the frequency 2À5 megacycles and produce therefrom a frequency 5À0 megacycles which modulates the incoming range at 7. The upper side-band of 5À5-7À5 megacycles is selected at 9 and detected at 10 to produce the original range of 0-2 megacycles.
Patent GB-847358-A (GB)
Title: Improvements in or relating to drawing office appliances
Inventor: MOON WILLIAM RICHARD HARDING
IPC: B43L13/08
Filed: 1956-08-14
Abstract: 847,358. Drafting machines. HALL HARDING Ltd. Aug. 21, 1957 [Aug. 14, 1956], No. 26436/57. Divided out of 847,357. Class 97(3) In a drafting machine having a drafting head movable parallel to a drawing board the drafting head carries a pivotally mounted scale arm unit bearing a pair of spaced limit stops engageable by a retractable member to allow the unit to be swung between two angular positions determined by the abutment of each limit stop with the retractable member. As shown in Fig. 1 the drafting head is movable along a tube 34 itself movable transversely across the drawing board 12, and carries two scale arms 96, 98 mounted on a plate 86, Fig. 2, pivoted at 82 to a plate 80 on a carriage 60 movable along the tube 34 as in Specification 847,357. The plate 86 has a clamping nut 110, Fig. 1, moving in a slot 106 in the plate 50. To allow the tubes to be located in two positions spaced at angles 45 to 90 degrees and 30 to 60 degrees the plate 86, Fig. 2, has attached thereto a sector plate 116 having two insets 118, 120, Fig. 3, engaged respectively by a retractable pin 122, 124, the inset 118 defining two angular positions of 40 and 90 degrees and the inset 120 two angular positions of 30 and 60 degrees. The pins 122, 124 are carried by an arm 132 centrally pivoted at 134 and rocked by a pivoted lever 142. With the lever in central position both pins are free of the plate 116. On rotating the lever the arm 132 is tilted to lower one or other pin into engagement with a recess in the plate 116 to bring the stops into operation. A modification of essentially similar construction is also described.
Patent GB-692634-A (GB)
Title: Method of and means for conditioning the air in pits
IPC: E21F3/00
Filed: 1950-10-31
Abstract: 692,634. Cooling air in mines. DEILMANN BERGBAU GES., C. Oct. 31, 1950 [Jan. 21, 1950; Aug. 26, 1950], No. 26485/50. Class 85 In a cooling system for air in mines refrigerant in a closed high-pressure circuit is passed from a cooler and compressor a on the surface down a lined borehole c to a cooler d at the bottom of the mine and after expansion is returned to the surface by a second lined borehole. From the cooler, secondary liquid low-pressure cooling circuits are taken off to air coolers i at the desired points. In a modified form only one borehole is used, the liquid refrigerant passing down a pipe in the borehole up which the gaseous refrigerant passes. The secondary cooling circuits may lead to heat exchangers of tertiary circuits. The liquid of such circuits, either water or silicone oils, may be atomized in the secondary coolers. The borehole or boreholes are used solely for the introduction and the return of the cold carrier below and to the surface.
Patent GB-754065-A (GB)
Title: Improvements relating to arrangements for detecting the jets of reaction propulsion units
Inventor: BERTIN JEAN HENRI
IPC: F02K1/56
Filed: 1954-09-14
Abstract: 754,065. Jet propulsion nozzles. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Sept. 14, 1954 [Sept. 21, 1953], No. 26653/54. Class 110(3) [Also in Group XXXIII] In a jet deflecting device comprising a a pair of movable deflectors 4, 4<SP>1</SP> which deflect the rearwardly directed jet laterally through spaced curved blades 8, the rods 10 which support the blades carry also a plurality of parallel vanes 21 which confine the separate deflected jet streams and prevent divergence in the manner indicated by arrows F2 and F3. In such arrangement the blades 8 are only part circular and are welded at their ends to end plates 24. The vanes 21 may be continuous in length and pass through slots in the blades 8 or they may be intercostal between the blades. They may be of streamline section as shown or flat plates.
Patent GB-687884-A (GB)
Title: Improvements in or relating to means for gauging and grading gut casings
IPC: A22C17/14
Filed: 1950-11-01
Abstract: 687,884. Linear dimension gauges. WHEATLEY, A. S. Sept. 19, 1951 [Nov. 1, 1950], No. 26660/50. Class 106 (ii). [Also in Group VI] Gut casings are gauged for internal diameter by drawing them over a nozzle 8 at one end of a pipe 7 mounted with a tap 3 on a union 2. Water flows from the nozzle 8 and the gut is passed over the nozzle on to the pipe 7 until the diameter is such that the casing will not pass over the nozzle. The gut is then broken off and a smaller nozzle substituted and the process is repeated. In a modified form of nozzle, Fig. 4, a transverse jet of water is also provided by the small holes 15 drilled at right angles to the main bore 11. The interchangeable nozzles are secured by means of a bayonet joint 12 to the pipe 7. The pipe 7 is arranged to cut off the water supply when rotated through 90 degrees by means of a valve 5 to facilitate nozzle changing.
Patent GB-226641-A (GB)
Title: Improvements in the manufacture of continuously loaded electrical conductors
IPC: H01B11/14
Filed: 1923-10-26
Abstract: 226,641. Western Electric Co., Ltd., and Griffin, J. T. Oct. 26, 1923. Drawings to Specification. Electric conductors. - A loading tape is attached to a conductor by means of electric welding, preferably spot welding. When the conductor comprises a central wire surrounded by tapes to give flexibility to the cable the loading-tape can be welded to the conducting. tape without affecting the central conducting. wire, thus maintaining the flexibility.
Patent GB-1154483-A (GB)
Title: Desulphiding Catalyst
Inventor: NICKLIN THOMAS
IPC: C07C7/148
Filed: 1966-06-16
Abstract: 1,154,483. Desulphurising catalysts. NORTH WESTERN GAS BOARD. 16 June, 1966, No. 26944/66. Heading B1E. Desulphurisation of hydrocarbons is effected in the presence of a catalyst comprising U 3 O 8  and/or UO 3  supported on a carrier. The latter may be SiO 2 , Al 2 O 3 , MgSiO 3 , kaolin, powdered brick, MgO, CaO, SrO or BaO. The catalyst may be prepared conventionally and physical properties e.g. pellet size and surface area are given.