baber/WOPTO huggingface dataset:
Patent GB-1198516-A (GB)
Title: Method of Obtaining Leaf Tobacco with Low Content of Nicotine
IPC: A24B15/30
Filed: 1967-07-19
Abstract: 1,198,516. Treating tobacco leaves. JAPAN MONOPOLY CORP, NIKKEN CHEMICALS CO. Ltd. and TAIKO CO. Ltd. 19 July, 1967 [20 July, 1966], No. 33267/67. Heading A2C. [Also in Division C1] Harvested tobacco leaves are dipped in an aqueous dispersion of up to 3 per cent of a film-forming agent, dried and cured (to produce a low nicotine content). The agent may be a wax; C 16-22  alcohol or ethylene glycol ether; or polyvinyl alcohol or acetate. The dispersion may also contain polyoxyethylene dodecyl ether, alkylphenol polyethylene glycol ether or sodium lignosulphonate.
Patent GB-998986-A (GB)
Title: Loudspeaker structure
IPC: H04R31/00
Filed: 1962-08-30
Abstract: 998,986. Loud-speakers. A. L. COEN. Aug. 30, 1962 [Sept. 6, 1961], No. 33327/62. Heading H4J. In a loud-speaker the magnet housing is secured to the frame by a coupling which permits separation and reconnection of the parts by a limited rotation. As shown, Fig. 5, the permanent magnet of a moving coil loud-speaker comprises a core 36 secured in a pot 16 by cementing or crimping the closed end 42 of pot 16. The open end 60 of pot 16 is inserted in a circular aperture 34 in the frame 14 of the loud-speaker. Four recesses 64 are provided in the edge of aperture 34, Fig. 8, and end 60 is staked between recesses 64 to form projections 64 which hold the pit 16 in place, frame 14 being gripped between shoulder 22 and projections 64. The rest of the loud-speaker is now assembled, the magnet magnetized and the assembly tested. If its operation is unsatisfactory, due to metal particles in the magnet air gap, the magnet is demagnetized and then removed from the frame by twisting it until projections 64 are aligned with recesses 62. The magnet is then cleaned and reassembled by inserting the projections 64 in the recesses 62 and rotating the magnet to its original position.
Patent GB-1127316-A (GB)
Title: Improvements in wire conveyor belts
Inventor: BACH HUBERT ERNEST
IPC: B65G17/06
Filed: 1965-08-04
Abstract: 1,127,316. Endless conveyer belts. GEORGE LANE & SONS Ltd. 2 Aug., 1966 [4 Aug., 1965], No. 33327/65. Heading B8A. A wire conveyer belt comprises transverse rods 3 and secondary transverse and longitudinal wires 4, 5 and is stiffened by a rectangular cross-sectioned bar 11 mounted transverse of the belt in abutment with the underside thereof. The bars 11 are mounted between plates 10 extending in a plane perpendicular to the conveyer and longitudinally thereof and dependently attached to adjacent pairs of transverse rods 3. Appropriate recesses 12 are provided in the plate 10 to accommodate the secondary wires 4, 5.
Patent GB-176744-A (GB)
Title: Improvements in paper pulp refining engines
IPC: B02C7/06
Filed: 1920-11-26
Abstract: 176,744. Milne, S. Nov. 26, 1920. Pulping-engines.-Relates to paper pulp refining-engines of the type described in Specification 21517/07, in which a revolving disc co-operates with two stationary side discs, the latter two discs being adjustable toward and from the revoluble disc. According to the present invention, the adjustment of the side discs is effected by screws h<2>, h<3>, &c., Fig. 1 (four for each disc), mounted in two pairs of lateral supporting-brackets i, and operable simultaneously by screw and worm gear l, m, o, r, &c. and chain gear p from the shaft s, which, when required to be used, can be connected up by fast-and-loose belt pulley gearing to the shaft d of the revoluble disc e, Fig. 4. To indicate the degree of adjustment, pointers on the discs co-operate with gauges on the casing. The shaft d is supported in three double-thrust pedestal bearings c, one on the driving-side not being shown, and is driven by the pulley g. To prevent leakage of pulp at the bearings, water under pressure may be supplied between the neck rings d<1> and packing-rings d<2>, Fig. 4. The stationary disc a<1>, a<2> and the inner surface of the casing a are faced with non-corrosive metal, as shown at f, Fig. 4. The pulp is delivered at the inlet x<3>, from the feed-pipe x<1>, and, after passing outwards radially between the discs a<2>, e, returns between the discs e, a' to the outlet x<4>, x<2> the cutter-bars e<1> of the discs being given a slight set from the radial to facilitate this movement. The cutter-bars e' are of rolled bronze, and are held in place by rectangular beech strips e<2> and brass wedges e<3> ; they are equally pitched, and the numbers on two co-acting faces are equal or approximately so. The bars near the inlet and outlet openings x<3>, x<4> are tapered, and the openings are formed by omitting certain of the bars. The arrangement of the openings may be varied.
Patent GB-1497015-A (GB)
Title: Process for the continuous manufacture of nuclear chlorinated toluenes
IPC: C07B61/00
Filed: 1976-08-11
Abstract: o- and p-toluene are prepared continuously by ring chlorination of toluene in the presence of at least one catalyst in parallel flow with intensive mixing. Chlorine and toluene are employed in a molar ratio 0.4 to 1.0 and reacted in a reaction zone at 5 DEG  to 70 DEG C. After the reaction, hydrogen chloride and unreacted toluene are distilled off. The bottom product is immediately separated into the o- and p-chlorotoluene isomers. The resulting toluenes can be used as solvents or as starting materials and intermediates.
Patent GB-1475734-A (GB)
Title: Arrangement for the removal of solid agricultural materials  from silos
IPC: A01F25/20
Filed: 1974-07-29
Abstract: 1475734 Removing fodder from troughshaped silos VYZKUMMY USTAV ZEMEDELSKE TECHNIKY 29 July 1974 [31 July 1973] 33463/74 Heading A4C Fodder is removed from trough-shaped silos by pairs of oppositely handed worms, driven in opposite directions mounted on a structure 3 movable vertically on a frame 1, the worms stripping off horizontal layers of fodder in a column cut of knives 5 at the ends of the worms and chain cutters 6 formed with knives 7 at the sides of the array of worms. Cut fodder falls to a transverse worm conveyer 9 which feeds to an inclined delivery conveyer 10. The worms 4 and cutters 6 are driven from a motor 8 via transmission gearing. Cutters 6 may be replaced by rotating or vibrating knives.
Patent GB-411097-A (GB)
Title: Improvements in buffers for railway and like vehicles
IPC: B61G11/10
Filed: 1932-11-26
Abstract: 411,097. Railway &c. vehicle buyers. SANDERSON, A., Gosforth House, Gosforth Lane, Dronfield, Derbyshire. Nov. 26, 1932, No. 33476. [Class 103 (v).] In a railway &c. vehicle buffer of the selfcontained type in which an auxiliary spring is arranged to the rear of the main spring and functions both as a recoil spring and to assist in absorbing buffing shocks, the buffer spindle co-operates at its rear end with an inwardly directed flange on a socket member which has an outwardly directed flange coacting directly or indirectly with a shouldered portion of the buffer casing, while the recoil spring operates in conjunction with this socket and/or washers or plates surrounding the spindle. In the construction shown in Fig. 1, the buffer spindle C is attached to the buffer plunger A and has a nut D at its rear end abutting against the inwardly directed flange S of the socket F, and the recoil spring K is located between the outwardly directed flange U and a second doubly flanged socket E engaging the shoulder Q at the rear end of the casing B. The main spring J is disposed between the buffer head and the inner flange T of the socket E. In a modification (Fig. 3, not shown), the socket E is replaced by a flat washer or plate and the helical spring K by a rubber spring. In another construction, Fig. 4, the buffer spindle C at its forward end engages a plate or washer E, and the recoil spring M is located between the washer E and a second washer E<2>, for which projections H protruding from recesses in the buffer plunger form an abutment. Other springs J, K are positioned in front of and to the rear of the spring M so that all three function to absorb buffing shocks, while the spring M absorbs the recoil shocks.
Patent GB-174269-A (GB)
Title: An improved collapsible stool
IPC: A47C4/44
Filed: 1920-11-30
Abstract: 174,269. Hill, W. B. Nov. 30, 1920. Folding seats.-In a seat of the kind comprising legs 12 connected by X-frame members 13, slides 20 and seat rails 15, each seat rail is of inverted U or J section, is hinged at 16 to the members 12, 13, and is provided with an upwardly cut notch 22 to engage a headed stud 23, and is retained in engagement therewith by a leaf-spring 25. The slides 20 are formed of short lengths of angle-bar, and work in contact with the inner surface of the angle-bar legs 12. According to the Provisional Specifications, additional toggle frame members may be provided, and the seat members 15 may be in the form of toggle-levers.
Patent GB-878631-A (GB)
Title: Improvements in materials for dye imbibition processes
IPC: G03C7/25
Filed: 1957-10-30
Abstract: 878,631. Photographic processes. KODAK Ltd. Oct. 30, 1957 [Oct. 30, 1956], No. 33825/57. Class 98(2) An aluminium or thorium hydroxide dye inhibition mordant is formed on or in a support by coating successively two aqueous solutions of an organic colloid containing in one case aluminium sulphate or thorium nitrate and in the other sodium aluminate sufficiently alkaline to precipitate the hydroxide. Preferably, an absorbent paper support is coated with a gelatine solution of thorium nitrate or aluminium sulphate acidified with sulphuric acid preceded or followed by an alkaline gelatine solution of sodium aluminate. The solution of thorium nitrate may contain saponin and baryta coated photographic paper on well sized paper is preferred. The first coating is at least allowed to gel before the second is applied and is preferably allowed to dry. Other supports referred to are gelatine subbed cellulose ester film base or cellulose acetate coated paper. Other organic colloids referred to are polyvinyl alcohol or a water soluble gum. U.S.A. Specification 2,207,695 is referred to.
Patent GB-1464829-A (GB)
Title: Process for the preparation of 1-substituted 2-methyl-tetra hydropyrimidines
IPC: C08G18/20
Filed: 1975-08-15
Abstract: 1464829 1 - Substituted - 2 - methyl - tetrahydropyrimidines BAYER AG 15 Aug 1975 [17 Aug 1974] 34076/75 Heading C2C A process for preparing a 1-substituted-2- methyl-tetrahydropyrimidine comprises reacting an N-substituted propylene diamine with an acetoacetic acid ester or amide at a temperature of from 0‹ to 80‹ C. and removing the water produced in the reaction at a temperature of from 0 to 80‹ C. The process is preferably carried out in the presence of an inert solvent. The water of reaction may be removed by distillation or by addition of an inert dehydrating agent.
Patent GB-839250-A (GB)
Title: Improvements in structural reinforcing members
Inventor: KIRK GEOFFREY PETER
IPC: E04C2/34
Filed: 1955-05-03
Abstract: 839,250. Making girders. BRITISH REFRASIL CO. Ltd. Aug. 2, 1956 [May 3, 1955], No. 34121/59. Divided out of 839,249. Class 83(2). A stiffening or reinforcing member for stiffening a flexible structure, e.g. a heatinsulating blanket or panel, and adapted to maintain said structure in a predetermined curved form comprises a lattice girder member 10 consisting of a lattice element 11 of, e.g. stainless steel, flexible in a longitudinal plane of said element having secured along one of its longitudinally extending edges a flexible strip 13 forming one flange of said girder member and a separate flexible strip member 16 intended to be fixedly secured to the other longitudinal edge of the lattice element 11 when the latter is in its predetermined form, the assembled lattice element and strips being locked rigidly together in the desired contour when said separate strip member 16 is fixedly secured to said other edge of the lattice element as a flange (Fig. 3) to form the reinforcing member. The edges of the strip 13 are folded back on to the strip with the lattice element abutting the folded back edge and spot-welded to the strip at the crests 14 of the corrugations.
Patent GB-744588-A (GB)
Title: O-glycyl-n-carbobenzoxyserines
Inventor: MOORE JAMES ALEXANDER
IPC: C07C271/06
Filed: 1953-03-20
Abstract: The invention comprises O-glycyl-N-carbobenzoxyserine compounds of the general formula <FORM:0744588/IV(a)/1> wherein R1 represents a benzyl radical (which may be unsubstituted or substituted, e.g. by halogen atoms or alkyl, alkoxy, amino or nitro radicals in the nucleus and/or by alkyl or phenyl radicals in the side chain); mineral acid addition salts (e.g. hydrochlorides, hydrobromides, phosphates, nitrates, sulphamates and sulphates) and alkali and alkaline-earth metal salts of these compounds; the preparation of the acid addition salts by reacting an N-carbobenzoxyserine with a glycyl halide or N-carboxyglycine anhydride in the presence of at least one equivalent of a mineral acid, or with an acid addition salt of a glycyl halide (advantageously in a non-hydroxylic organic solvent at 0-100 DEG  C., preferably 30-60 DEG  C.); and the preparation of the metal salts by treating the free acids with an equivalent amount of an alkali or alkaline-earth metal hydroxide, carbonate, bicarbonate, oxide, alkoxide or amide.  Examples describe the reaction of N-carboxyglycine anhydride, in the presence of hydrogen chloride, with: (1) N-carbobenzoxy-dl-serine in dioxan; (2) N-carbobenzoxy-dl-serine in ethyl acetate; (3) N-carbobenzoxy-l-serine in ethyl acetate.
Patent GB-1317874-A (GB)
Title: Process for the manufacture of a screened photographic colour copy which simulates a multi-colour print
IPC: G03C7/28
Filed: 1971-07-21
Abstract: 1317874 Screened, photographic colour copy which simulates a multi-colour print CIBAGEIGY A G 21 July 1971 [24 July 1970] 34285/71 Heading G2C A screened or half-tone photographic colour copy which simulates a multi-colour print is prepared by successively exposing a lightsensitive negative-working colour photographic material to screened colour separation negatives of the original, which correspond to the colours blue, green and red through a colour filter of the same colour which was used to produce the colour separation negative, and processing to give a screened, positive direct-viewing colour copy containing colour images in yellow, magenta and cyan dyes respectively, the process being characterized in that the colour photographic material is subjected to at least one additional exposure to one of the screened colour separation negatives through a colour filter of a different colour from that used to produce the colour separation negative. The colour photographic material may be additionally exposed to white light or blue, green and red lights through a black and white negative of the original. The ratio of the exposure times of the or each additional exposure to the corresponding successive exposure(s) of the colour separations exposed with copying light of the same colour may be between 1:10 and 1:1. The negative-working photographic material may be a negative-working silver dye-bleach material (see Examples 1 and 3) or a negative-working chromogenic colour material (see Example 2).
Patent GB-829844-A (GB)
Title: Production of sulfur-free carbon monoxide-containing gas
Inventor: EASTMAN DUBOIS
IPC: C10J3/08
Filed: 1957-11-04
Abstract: 829,844. Gas manufacture. TEXACO DEVELOPMENT CORPORATION. Nov. 4, 1957, No. 34335/57. Classes 55 (1) and 55 (2). In a process for producing carbon monoxide containing gas substantially free from sulphurcontaining gases, a sulphur-containing solid carbonaceous fuel also containing ash is mixed with lime, in excess of that theoretically required for the removal of all the sulphur contained in the fuel, and reacted with a free oxygen containing gas in a reaction zone at a temperature above 2000‹ F. and also above the fusion point of the slag resulting from the lime and ash, the resulting molten slag is quenched with water in the presence of the carbon monoxide containing product gas to effect a solution of lime from the slag, the resulting limewater is stripped of hydrogen sulphide in the absence of the product gas and then contacted therewith to remove sulphur-containing gas therefrom. A slurry of coal, water and lime, which may be calcium oxide, hydroxide or carbonate, is prepared in a mixer 5 and passed by pumps 6 through a tubular heater 7 so as to form a dispersion of solid particles in steam. A cyclone separator 11 may discharge the steam through line 12. The coal and lime, together with steam, if desired, is fed, together with oxygen from line 9, into a mixer-burner in gas generator 8 which is maintained at a temperature of 2000‹ to 3000 ‹ F. and pressure between atmospheric and 2,000 pounds per square inch, preferably between 100-400 pounds per square inch. The product gas and molten slag passes through outlet 13 into a quench chamber 14 where water, admitted through line 41, maintains a liquid level 16. The product gas is withdrawn through line 17 to a gas scrubber 18, being quenched with recycled water introduced through line 42 and/or fresh water through line 43. The slag and limewater withdrawn from chamber 14 is freed from steam, hydrogen sulphide and other gases in flash tank 22, stripping steam being supplied at 23. The water and slag passes to a settler 26, from which water passes through line 28 to the top of scrubber 18, lime being added from hopper 29. The product gas is discharged at 31. Water from scrubber 18 is stripped of sulphur-containing gases in stripper 33 by means of steam or carbon dioxide fed in at line 36. In the case of carbon dioxide being used, calcium carbonate is formed, which is fed to settling tank 38, water being passed to lines 41, 42 or discarded at 44, and calcium carbonate slurry is fed to the mixer 5 through line 39.
Patent GB-195144-A (GB)
Title: Improvements in electric rail-bonds
IPC: B60M5/00
Filed: 1921-12-21
Abstract: 195,144. Tudsbery, H. T., and Johnson, P. Croom-. Dec. 21, 1921. Rail bonds.-A rail bond of the kind in which the rail web is bonded to the fish-plates comprises. a conducting mass produced between one or each fish-plate and the adjacent rail web by the deformation of one or more ductile conductors caused by tightening up the fish-plates. A hollow conductor in the form of a copper sleeve 2 surrounding steel end rings 3 and a fibre packing 4 is mounted on the fish-bolt 8, the ends 5 of the sleeve being bevelled to engage corresponding recesses 6 in the fish-plates 7. On tightening up the bolt, the projecting ends of the sleeve 2 are distorted so that the metal spreads in all directions and forms a conducting mass between the faces of the rail web and the fish-plates. Separate holes in the rail web may be provided for the conductor, independently of those adapted to receive the fishbolts, or the conductor may be made in two parts arranged on either side of the rail web. According to the Provisional Specification the conducting sleeves may be fluted or corrugated to assist their distortion.
Patent GB-783291-A (GB)
Title: Improvements relating to socket holders for thermionic valves
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R33/76
Filed: 1954-11-26
Abstract: 783,291. Holders for thermionic valves. EDISON SWAN ELECTRIC CO., Ltd. Nov. 25, 1955 [Nov. 26, 1954], No. 34374/54. Class 38 (1). [Also in Group XL (c)] In a valve-holder consisting of an insulating body 1 of cylindrical or tapered cylindrical form, the body has an annular rib for the attachment of an annular saddle 2 and symmetrically spaced mounting lugs 11 for a screening can extend from the rib and through gaps in the saddle and are located so as to be spaced from a chassis when the holder is attached thereto. The saddle may be omitted and the body 1 attached to a chassis 15, Fig. 6, by a spring plate 20 with lips 21 which engage the body. Fig. 7 shows a screening can 16 attached to the body 1. The can has vertical flutes 18 and smaller intermediate flutes 19, lips 17 being formed at the lower edges of flutes 19. To attach the can it is slid over body 1 with lips 17 located intermediate the lugs 11 and then rotated so that the lips engage under the lugs. In an alternative form of can, Fig. 9, a bulge forming a lip 22 at either or both ends of the can clips over the lugs 11. Apertures 23 for the lugs may be provided. To earth the can, the lips 17, where provided, may be maintained in contact with the chassis or engaged by a leaf spring 25, Fig. 11, riveted to chassis 15. Alternatively, Fig. 14, a spring contact 26 may extend from the centre contact of the holder up through one of the lugs 11 to engage the interior surface of the can. Specification 736,877 is referred to.
Patent GB-952773-A (GB)
Title: Improvements in or relating to couplings and drawgear for railway and like vehicles
Inventor: HODGES HARRY
IPC: B61G7/12
Filed: 1961-09-26
Abstract: 952,773. Rail vehicle draw gear. A. B. C. COUPLER & ENGINEERING CO. Ltd. Dec. 27, 1962 [Sept. 26, 1961], No. 34464/61. Heading B7T. A railway vehicle draw gear shown with a sleeve 14 having a spring compressing bolt 18 which is removed before operation, comprises a yoke 3 around a main spring 10, followers 9, 11 co-operating with stops 21, 22 fixed to the vehicle frame, a coupler head 1 pivoted about a horizontal pin 4 to an intermediate member 2 pivotally connected to a vertical yoke pin 5 and abutting the follower 9, an auxiliary spring 12, and a sleeve 6 abutting the head 1 and at its other end having wings 6<SP>11</SP> abutting the follower 9. Draft loads are taken first by the spring 12 until the yoke 3 contacts the follower 11 and then by the spring 10, whilst buff loads transmitted by the member 2 and the sleeve 6 are taken by 10 only. Drooping of the head 1 exerts a pull on the member 2 and the yoke 3 which is resisted by the spring 12, and forces exerted during angling on a curve causes the wings 6<SP>11</SP> to compress the spring 10 and the yoke 3 to move and compress the spring 12. Instead of the two follower plates 9, 11, a single plate may be employed, fastened to one end of a spring fixed at its other end or acting at an intermediate point of a spring fixed at both ends.
Patent GB-605361-A (GB)
Title: Improvements in or relating to multi-stage axial flow compressors
IPC: F04D29/32
Filed: 1945-12-20
Abstract: 605,361. Axial flow compressors. SULZER FRERES SOC. ANON. Dec. 20, 1945, No. 34539. Convention date, Jan. 19. Drawings to Specification. [Class 110 (i)] In a multi-stage axial flow compressor with at least three running blade rings, the pitch of each rotor blade near the blade root is at least 1.25 times the chord length and the blades are so shaped and positioned that they work in normal service with a coefficient of lift of at least 0.7.
Patent GB-169675-A (GB)
Title: An improved wedge-adjusted spanner
IPC: B25B13/24
Filed: 1920-12-07
Abstract: 169,675. Sehmidt, F. P., [Firm of], Sept. 24, 1920, [Convention date]. Sliding-jaw wrenches.-In a wrench of the kind comprising a fixed jaw provided with a tapered shank a and a movable jaw b drawn by a spring into a sleeve c embracing the shank, the spring d is secured to the shank at f and to the jaw b at e, and is located partly in a groove g in the jaw b and partly in a groove h in the shank a.
Patent GB-357418-A (GB)
Title: A device for use with rail vehicles which are fitted with pneumatic tyres or the like
IPC: B60B17/02
Filed: 1930-11-17
Abstract: 357,418. Railway vehicles. MICHELIN ET CIE, Clermont-Ferrand, Puy-de-Dome, France. Nov. 17, 1930, No. 34604. Convention date, Nov. 21, 1929. [Class 103 (vi).] A vehicle having pneumatic tyres E running on rails is provided with a frame 2 carrying one or more auxiliary wheels 3 or skids which are normally just clear of the rail but bear thereon when the tyre E is deflated.