baber/WOPTO huggingface dataset:
Patent GB-1180508-A (GB)
Title: Antibiotic Taimycine Complex
IPC: A61K35/66
Filed: 1968-06-05
Abstract: 1,180,508. Taimycine antibiotics. SOC. FARMACEUTICI ITALIA. 5 June, 1968 [7 June, 1967], No. 26754/68. Heading C2A. An antibiotic complex Taimycine (having components A, B and C) and salts thereof, are produced by cultivating a Taimycine-producing strain of Streptomyces michiganensis var. amylolyticus, e.g. IMI 131670, in a liquid culture medium containing an assimilable source of carbon, an assimilable source of nitrogen and mineral salts. The antibiotic complex is obtained by filtering the broth through a siliceous adsorbent, extracting the cake several times with methanol, concentrating the extract and centrifuging the crude antibiotic precipitate. The supernatant is adjusted to pH 5.8 to 6.2, extracted with petroleum ether to remove impurities and then with chloroform. Petroleum ether is added to the chloroform extract to ppte. further crude Taimycine. The crude is subjected to chromatography on silicic acid using a solution of the crude in the lower layer of a CHCCl 3 : Cll 4 ; CH 3 OH: H 2 O (3: 2: 4: 1) mixture and eluting with chloroform-ethanol mixtures having increasing percentages of ethanol. The fractions are concentrated, diluted with water, adjusted to pH 6.0 and concentrated to precipitate the sodium salts of Taimycine A, B and C. Taimycine C is further purified by crystallization from methanol/water. Taimycine B and A are further purified by counter-current distribution using the solvent system chloroform/carbon tetrachloride/methanol/water. The free acid form is obtained by treating a solution in chloroform and ethanol with acetic acid and then water. The aqueous layer is extracted with chloroform and the extract concentrated to give a crystalline precipitate. The sodium salts of Taimycine A, B and C are white amorphous powders, soluble in dimethyl formamide, dimethyl sulphoxide and dioxan, in aqueous alcohols and aqueous acetone; sparingly soluble in alcohols, chloroform, acetone and benzole; insoluble in water and petroleum ether. Taimycine has antihelmintic and antiprotozoal properties. A pharmaceutical composition comprises one or more Taimycine antibiotics and a carrier.
Patent GB-482591-A (GB)
Title: Improvements in and relating to thermionic valves and circuits
IPC: H03D1/16
Filed: 1936-10-02
Abstract: 482,591. Thermionic valves and valve circuits. HARRIES. J. H. O., and AUTIE, E. G. Oct. 2, 1936, No. 26773. [Classes 39 (i) and 40 (v)] In thermionic valve circuits using a multigrid valve such as described in Specifications 461,282 and 461,310 and which acts as a detector amplifier, the control grid g<1> is connected to a tapping on a load resistance R<1> in the detector circuit connected between the cathode c and anode a. The grid g<3> acts as the amplifier anode and may be connected to further amplifiers through the condenser C<6> ; grids g<2>, g<5> have a positive bias less than that of the anode grid g<3> and are placed between (i) the cathode and grid g<3> and (ii) next to the anode a. To prevent transmission of the potential variations on the anode a into the output circuit connected to the amplifier anode grid g<3>, a grid g<4> is inserted between the positively biassed grid g<5> and the grid g<3>, the grid g<4> having a negative bias relative to the cathode or being at zero potential. The grid g<4> may be connected to the H.T. battery 3 through the resistance R<6>. When used in a receiver set other valves should obtain their H.T. supply between the positive terminal of the source 3 and a point on the earth line 4 to the left of the resistance R<7>; a blocking condenser C<9> is provided. The bias for the grid g<4> may also be obtained by connecting a resistance and condenser in parallel between the junction point 5 of resistances R<2>, R<3> and condenser C<3> and the earth line 4. Bus-bar 2 supplies rectified potential for automatic gain control.
Patent GB-167408-A (GB)
Title: Improvements in cases for watches, clocks and other instruments of a like kind
IPC: G04B19/32
Filed: 1920-09-20
Abstract: 167,408. Wachter, L. E. F. Sept. 20, 1920. Illuminating, means for.-A flange or ring 4 carrying an annulus of self-luminous material or self-luminous numerals or spots 5 is arranged around the dial proper of a clock or other instrument. The hands 6 are also made self-luminous.
Patent GB-829997-A (GB)
Title: Improvements in or relating to revolvers
Inventor: KOUCKY JOSEF
IPC: F41A3/40
Filed: 1956-09-04
Abstract: 829,997. Revolvers. KONSTRUKTA PRAHA. Sept. 4, 1956, No. 27034/56. Class 119 The spindle 1 of the cartridge cylinder 2 is removably mounted in the frame 3 by means of a segment head 5 formed on the front end of the spindle, the head projecting into a lateral recess 6 of the barrel 4 in which position a spring-loaded pin 7 slidably mounted in the frame 3 engages with its conical head in a corresponding recess 8 in the rear of the head 5. To remove the spindle the head 5 is swung out of the recess 6 against the pressure of the spring of the pin 7 to the position shown in Fig. 4 in which position the pin 7 has moved out of the recess 8 and now urges the head 5 forwardly as shown in Fig. 2 to a position where it may be grasped by hand and pulled out of the cylinder 2.
Patent GB-1421249-A (GB)
Title: Ball bearing assembly
IPC: F16C29/00
Filed: 1973-06-06
Abstract: 1421249 Bearings ROCKWELL INTERNATIONAL CORP 6 June 1973 [14 July 1972] 27068/73 Heading F2A A recirculating ball bearing assembly comprises concentric outer and inner sleeves 14, 16, the inner sleeve 16 having a number of ball recirculation paths 22, the adjacent surfaces of the sleeves being substantially polyhedral, and the inner surface 26 of the outer sleeve 14 having a number of axially extending raceways 30 shaped so that the balls are in full race curvature contact with said raceways when in their load-carrying positions. The inner sleeve may be retained by snap rings engaging in grooves in the inner surface of the outer sleeve. The outer sleeve may be made from SAE 5200 steel, and can be manufactured by broaching. The inner sleeve may be made from zinc alloy, or a mouldable material such as plastics. The balls and raceways may be coated with PTFE.
Patent GB-1431819-A (GB)
Title: Bicycloalkane derivatives
IPC: C07D319/06
Filed: 1973-06-07
Abstract: 1431819 Bicycloalkane derivatives SCHERING AG 7 June 1973 [8 June 1972] 27235/73 Heading C2C The invention comprises compounds of the general Formula I: in which n is 1 or 2; X is -CH 2 -Z 2 -R 2 , -CH 2 COOR 4  or -CH 2 CN; Y is a carbonyl or dialkoxymethylene group; Z 1  and Z 2  are each a free or ketalized carbonyl group or a free, esterified or etherified hydroxymethylene group; U is a halogen atom; R 1 , R 2  and R 3  are each a C 1 -C 4  alkyl group; and R 4  is an alkyl, aryl or aralkyl group. They may be prepared by reacting a compound of formula in the presence of a basic catalyst, with either a vinyl ketone of formula or a compound of formula in which W is a halogen atom. Any carbonyl group represented by Y in the resulting compound may be converted into a dialkoxymethylene group by treatment with an alcohol or a ketal which is capable of setting free an alcohol under the reaction conditions.
Patent GB-188896-A (GB)
Title: Improvements in stands for motor or other cycles
IPC: B62H1/04
Filed: 1921-10-14
Abstract: 188,896. Villiers Engineering Co., Ltd., and Pountney, F. Oct. 14, 1921. Supports.-A support for motor-cycles &c. comprises two spaced tubular pillars A, Figs. 1 and 2. each carrying arms F, G, which are pivoted to a lug on the frame. The ends F<2>, G<2> of the arms F, G receive the lug between them and are hinged by a bolt or pin Z. A saddle C on the pillar A contacts with a stay D when the stand is in the operative position. The arms F, G are preferably of plate metal and may be secured to the pillar A by brazing &c.
Patent GB-200421-A (GB)
Title: Typewriter ribbons especially adapted for manifolding
IPC: B41J35/35
Filed: 1922-10-09
Abstract: 200,421. Dehn, F. B., (Manifold Inepressions Corporation). Oct. 9, 1922. Ink-ribbon mechanism; ink ribbons. - In duplicating-arrangements comprising a length of ink ribbon 1 secured to carriers 4 and arranged at the printing-line of a typewriter, the ink ribbon is provided on one or both sides with a reinforcing- member 2 having an opening for permitting direct impact of the types. The member 2 is made From paper or fabric and may, as shown, consist of a strip having a longitudinal slot; or separate strips at the top and bottom of the ink ribbon may be employed. The ink ribbon preferably consists of a strip of carbon paper. The ink ribbon may be secured at the ends to clips 3 having hooks 3<1> for engaging notches 4<1> in the carriers.
Patent GB-816193-A (GB)
Title: Magnetic powder dispenser
IPC: B23K9/32
Filed: 1957-08-30
Abstract: 816,193. Dispensing magnetic powders. UNION CARBIDE CORPORATION. Aug. 30, 1957 [Aug. 31, 1956], No. 27314/57. Class 78(1). Magnetic powder from hopper 10 is distributed by rotating magnetic distributer 26, the material being scraped off by scraper 33 to fall into passage 34 whence it is discharged by a stream of carrier gas. The hopper 10 is screwthreaded into casing 14 so that by manual rotation of the hopper the distance of the discharge nozzle 16 from distributer 26 is adjusted to vary the rate of discharge of the powder, the rate being indicated by fixed pointer 18. The distributer 26 together with its shaft 25 and bearings are removable as a unit. Specification 797,022, [Group II], is referred to.
Patent GB-1090509-A (GB)
Title: Board game
IPC: A63F3/00
Filed: 1966-06-18
Abstract: 1,090,509. Board game. R. E. LLOYD. June 18, 1966, No. 27344/66. Heading A6H. Apparatus for a board game comprises two packs of cards and 4 boards simulating a computer, marked at A with the word Investment, Profit, Expenditure or Bank and in the spaces C by the words Input Devices, Output Devices, Communications and Storage Devices.
Patent GB-1089955-A (GB)
Title: Improvements in or relating to brake linings
IPC: F16D69/00
Filed: 1965-06-29
Abstract: 1,089,955. Brake linings. ALFRED TEVES MACHINEN - UND ARMATURENFABRIK KOMM.-GES. June 29, 1965 [June 29, 1964], No. 27488/65. Heading F2E. The pads 6 of a disc brake are held away from the disc 7, when the brake is released, by spacers 1 of mushroom shape which are accommodated partly in a bore 10 in each pad lining and partly in a larger bore 12 in the backing plate 5 of each pad, each spacer being loaded by a spring 3 and able to move axially by the amount A by which the height of the bore 12, which is limited by a shoulder 12 of the lining, exceeds the height of the head portion of the spacer. The spacers are of friction material which has a lower coefficient of friction than that of the pad linings and preferably a greater resistance to abrasion, so that as the linings wear the spacers will also wear but continue to project by the amount A from the surfaces of the linings. The shoulders 12 retain the spacers even when the linings are fully worn. The stems of the spacers have considerable play in the bores 10 which are said to be self-clearing as regards preventing accumulations of dust 8 and burrs 9 from causing the spacers to stick.
Patent GB-503546-A (GB)
Title: Improvements relating to electric incandescent lamps
IPC: H01K9/04
Filed: 1937-10-09
Abstract: 503,546. Two-part couplings. VESTRIC LAMP CO., Ltd., and COOK, J. A. Oct. 9, 1937, No. 27505. [Class 38 (i)] A double - filament lamp is rendered capable of turning in its holder to bring either filament into operation by fitting the cap d of the lamp with a collar e on which the bayonet pins f are mounted, the collar being connected to the cap by rivets g passing through slots h. If the holder is of the type having two contact studs, the cap carries three contacts a, b, c, the contact a being common to the two filaments and always in engagement with one stud and the contacts b, c being brought alternatively into engagement with the other stud by turning the lamp. If the holder is of the centre contact type, the collar e has a lug on its edge that is bent over the face of the cap to engage one of a pair of contacts on the cap, the common end of the two filaments being connected to the centre contact. According to the Provisional Specification, the collar may be placed inside the cap, the pins f protruding through circumferential slots in the cap.
Patent GB-449523-A (GB)
Title: A process and apparatus for the disincrustation of cutaneous tissues
IPC: A61N1/30
Filed: 1934-09-25
Abstract: 449,523. Electric and other treatment of the skin. DENIS, M., 3, Fg. St. Honore, and SOC. P.A.B., 5, Rue Tronchet, both in Paris. Sept. 25, 1934, No. 27558. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 26, 1935]. [Class 81 (ii)] In treatment of the skin involving the application of creams and the successive application of low-voltage direct, and high-frequency currents, apparatus shown in Fig. 2 is used comprising terminals S<1> for direct current controlled by a " potentiometer " P, a third terminal B<1> being provided for connection to a wristlet electrode ; terminals S<2> for high-frequency current together with an additional wristlet electrode terminal B<2>; a reversing switch I, a " resonator " R, a condenser C, and a highfrequency coil B<3>. The apparatus is enclosed in a portable casing having a drawer for instruments at its base and a panel on which are mounted terminals, a voltmeter V, current control dials, current and time indicators, switches, and dials for regulating yellow and blue lamps employed in the treatment.
Patent GB-843359-A (GB)
Title: Improvements in or relating to power plant installations for aircraft
Inventor: KERRY THOMAS HENRY
IPC: F02C7/20
Filed: 1957-09-02
Abstract: 843,359. Aircraft. ROLLS-ROYCE Ltd. Aug. 15, 1958 [Sept. 2, 1957], No. 27689/57. Class 4. [Also in Group XXVI] A jet-propulsion engine is mounted on an aircraft wing by a faired strut, wherein is housed all of the engine driven auxiliary units. The wing spars 10 carry a structure 19 enclosed within a fairing 26 and having detachable connections 19a, 19b for a gas turbine engine 13 housed within a nacelle 18. The engine has a readily-disconnected connection to a shaft 32 driving auxiliary units which are housed in the fairing 26 instead of the more usual location within fairing 18. Such auxiliary units comprise a main fuel pump 27, a booster pump 28, an electric motor 29 and a tachometer 30, grouped about and mounted on a gearbox 31 driven by shaft 32. A fuel supply control unit 33, also mounted in the fairing 26, supplies fuel to the engine through a readily-disconnected pipe 34. An engine oil sump 20a is mounted in the front portion of fairing 18 adjacent air intake 18a. In an alternative embodiment, the fairing 18 is dispensed with and the engine casing constitutes the nacelle wall.
Patent GB-751702-A (GB)
Title: Improvements relating to valves for pipes conveying gaseous fluids
IPC: F16K13/10
Filed: 1954-09-27
Abstract: 751,702. Valves. KOPPERS GES., H. Sept. 27, 1954 [Oct. 7, 1953], No. 27820/54. Class 135. A valve comprises a rotatable hood 6, Fig. 3, which may close the inlet 2 with its margin immersed in a sealing liquid in the casing 1, its axle 5 being rotated by an annular chamber 11, Fig. 5, secured to the axle, partly filled with liquid and having a partition 12 and an inpulse pipe 13 leading fluid pressure into the space between the partition and the surface of the liquid whereby the annular chamber is rotated to open the valve, and a counterpoise 22 biasing the chamber in the valve closing direction. A bleed 161 is provided for the air behind the partition and liquid level gauges are attached to the annular chamber at 29 and to the valve casing at 30. The pressure in 13 is derived from the inlet 2 or from another pipe, e.g. a producer gas blast pipe. The opening of the valve may be limited by an adjustable nut 27.
Patent GB-181290-A (GB)
Title: Improvements in or relating to pulverizing or grinding apparatus
IPC: B02C13/00
Filed: 1921-10-20
Abstract: 181,290. Powdered Puel Plant Co., Ltd., (Assignees of Soc. Anon. La Combustion Rationnelle). June 27, 1921, [Convention date]. Impact pulverizers.-Apparatus for pulverizing coal &c. comprises a rotor and stator, or two oppositely moving rotors, each provided with a large number of vanes so that the angle between the vanes is small, the vanes being of uniform shape from end to end with their broader and operative faces parallel to the axes of the rotor and stator, or rotors, and moving rapidly relatively to and in close proximity to one another, a closed casing containing the rotor and stator, or rotors, and provided at one end with means for supplying the material to be pulverized, an air inlet at the same end, and a fan which may be mounted on the rotor shaft for causing air and suspended material to traverse the casing longitudinally of the rotor. The coal &c. is fed from a hopper 1 to a cylindrical casing 6 and is drawn by a fan 7 at the opposite end thereof first past preliminary crushers 10 and then past rotary vanes 12 mounted on a shaft 3 and operating between stationary vanes 13 fixed to the casing. The preliminary crushing may be dispensed with or performed in a separate machine. The vanes may be so arranged that the air current helps to rotate them.
Patent GB-986083-A (GB)
Title: Improvements in and relating to salts of acetylenic carboxylic acids
Inventor: KURTZ ABRAHAM NATHAN
IPC: C07C51/15
Filed: 1963-07-13
Abstract: Alkali metal salts of acetylenic carboxylic acids are prepared by reacting an alkali metal acetylide with carbon dioxide in the presence of an amide <FORM:0986083/C2/1> and an inert organic liquid diluent.  The acetylides are of formula R.C­CM, where M is the alkali metal and R is hydrogen or an alkyl, alkenyl, aryl, aralkyl and alkaryl radical, e.g. sodium acetylide, sodium methyl, vinyl and phenyl acetylide.  The amides are compounds in which R1 is a hydrogen atom, alkyl (1-10 C), aryl (6-10 C); each R2 and R3 an alkyl (1-10 C) or aryl (6-10 C); and R1 and R2 when taken together with the amid represent a heterocyclic 5-7 atom ring, or divalent alkylene (3-10 C) radical.  A list is given and preferred amides are N,N-dimethyl formamide, N,N-dimethyl acetamide, and N-methyl-2-pyrrolidone. The mole ratio of amide to acetylide is from 1 : 1 to 10 : 1 or above and the liquid diluent may be aromatic or aliphatic hydrocarbons and petroleum fractions in a ratio of 1 : 1 to 20 : 1.  Examples describe the preparation of sodium propiolate from sodium acetylide using N,N-dimethyl formamide, acetamide and N-methyl-2-pyrrolidone and sodium tetrolate from sodium methyl acetylide using N,N-dimethyl formamide.  Tetrolic acid is obtained by hydrolysis from the latter salt.
Patent GB-151938-A (GB)
Title: A new or improved attachment for writing pens
IPC: B43K1/02
Filed: 1920-10-01
Abstract: 151,938. Clarke, C. F. Oct. 2, 1919, [Convention date]. Reservoir nibs.-A reservoir attachment for pen nibs consists of a metal blank provided with slots and corrugations to increase its capacity and slit points to facilitate feeding the ink. The nibcontacting part is provided with a slit 2 at the point, and a slot 3 extending through a series of corrugations 4. The end 7 remote from the point is bent over at 6 to serve as a mounting-shank, which is placed in a holder with an ordinary nib 13, Fig. 1, and is formed as shown at 8, 9, 11. The downwardly-bent part 11 slit at 12 contacts with the points and the portion 9 is formed with an ink-holding slot 10.
Patent GB-219853-A (GB)
Title: Method for the production of decorative or other effects in vulcanized rubber
IPC: B29C37/00
Filed: 1923-11-07
Abstract: 219,853. Luff, B. D. W., and North British Rubber Co., Ltd. Nov. 7, 1923. Ornamenting; ornamenting fabrics.-A process for producing designs in vulcanized rubber on surfaces of rubber, glass, paper, wood, leather, fabrics, &c., consisting in applying a film of rubber and sulphur, with or without colouring- matter or other ingredients, exposing the film to light through a stencil or negative, whereby parts become vulcanized, and dissolving the unexposed portions of the film by a suitable solvent such as benzene, coal tar naphtha, chlorinated hydrocarbons of the paraffin series, or mixtures of these. The image remaining may be further vulcanized by any known process.
Patent GB-493233-A (GB)
Title: Improvements in or relating to furniture with folding legs, flaps or other parts
Filed: 1937-10-15
Abstract: 493,233. Stays for hinged articles. LARRAD, Ltd., C. P., LARRAD, C. P., and BOOKER, T. S. Oct. 15, 1937, No. 28075. [Class 65 (i)] [Also in Group XIV] A stay for the hinged legs, flaps and other folding parts of furniture comprises a slotted member 3 hinged to one part and a fixing bolt 6 pivoted to the other part so that it can adapt itself to the changing angularity of the stay and is freely slidable in the slot 5 as the part is folded. As shown applied to a table with folding legs 2 the stay 3 is hinged at 4 to the underside of the table top and the bolt 6 is pivoted at the centre of a cross member 8 extending between the legs. Cup-shaped washers may be provided to facilitate the sliding of the bolt in the slot when the nut 10 is loosened. The legs and stays at either side of the table may be offset to fold alongside one another. In a modification the legs and stays are of tubular metal, the stay comprising two tubes spaced to form the slot and the bolt 6 being provided with a transverse pin taking into a divided cross member of the leg. The stay . may be partially embraced by a bracket through which the bolt passes.
Patent GB-362049-A (GB)
Title: Improvements in and relating to loaded submarine electric cables
IPC: H01B11/14
Filed: 1930-09-20
Abstract: Hydrogenated caoutchouc is prepared by treating ordinary natural or synthetic caoutchouc with hydrogen in an autoclave in the presence of catalysts, such as nickel, platinum, or palladium at temperatures between 200-300 DEG  C. and at a pressure of 30-60 atmospheres.ALSO:A viscous composition suitable for embedding the loading material of a submarine cable comprises a mixture of hydro-caoutchouc with either bitumen, guttapercha, balata, or synthetic caoutchouc polymerized to a small extent.
Patent GB-933997-A (GB)
Title: Improvements in the refining of pig-iron
IPC: C21C5/32
Filed: 1961-08-03
Abstract: A method of refining pig iron to steel comprises surface blowing with oxygen until the carbon content of the metal is up to 0.05% higher than that desired, adding a drying and dephosphorizing agent, agitating the bath, and retaining the dried slag in the furnace for use as the first slag for the succeeding charge.  The process may be carried out in a Kaldo furnace and, after addition of the drying and dephosphorizing agent, e.g. lime, in amount 1-3% of the total weight of metal, the furnace may be rotated for less than one minute before tapping.