baber/WOPTO huggingface dataset:
Patent GB-785993-A (GB)
Title: Improvements in or relating to the production of insulating bodies fromed from grains of thermo-plastic material
IPC: C08J9/224
Filed: 1955-07-07
Abstract: In the production of flame-proof expanded thermoplastic articles by adding a flame-proofing agent to the expanded granules and agglutinating by heat, the expanded granules are coated with a powdered water-insoluble chlorine-containing substance fusible at the agglutinating temperature.  The granules should be slightly moist to assist adherence of the powder.  Granular polystyrene may be expanded with petroleum ether, coated with powdered chlorinated paraffin wax containing 65 to 75 per cent chlorine, a mixture thereof with antimony trioxide or chlorine-containing polyvinyl compounds and agglutinated at 90 DEG  to 130 DEG  C.
Patent GB-1356850-A (GB)
Title: Reinforcement for reinforced-concrete structures
IPC: E04C5/04
Filed: 1971-06-09
Abstract: 1356850 Load handling pallets, separating stacked articles TOR-ISTEG STEEL CORP 9 June 1971 [10 June 1970] 19662/71 Headings B8C and B8H [Also in Divisions D1 and E1] A pallet for stacking concrete reinforcing mats E comprises spaced longitudinal rods 16 joined by transverse rods 17 bent to include narrow U- shaped portions which engage meshes of the mats. Plastic strips 19 are inserted between adjacent sections E.
Patent GB-205569-A (GB)
Title: Improvements in metal aircraft structures
IPC: B64C3/18
Filed: 1922-07-19
Abstract: 205,569. North, J. D. July 19, 1922. Framework. - Thin sheet metal members of tubular form for aircraft structures are formed with a continuous strip occupying, the major part of the circumference and having outwardlyturned flanges to which are secured the corresponding flanges on a narrow closing strip occupying the remainder of the circumference. This closing strip is interrupted at intervals to permit of the attachment of angle-pieces or other members to the principal strip. Fig. 4 shows a corner boom for a rectangular girder, the principal strip A occupying three quarters and the closing strip B one quarter of the circumference of the tube. The flanges of either or both strips may be curled over as shown or bent at an angle towards the principal strip A. Fig. 8 shows a modification in which the principal strip A extends beyond three quarters of the circumference. For the attachment of cross-members the strip B is interrupted and an angle plate C, Fig. 3, is riveted to the flanges of the strip A. An additional plate F may extend across the angle to support an eye-bolt E, a distance-piece G preventing the plates from being crushed together. In place of the simple arcs shown, the strips may be formed with a series of small outwardlybulged arcs having their centres on the simple are and contiguous to one another or spaced apart. For connecting one member to another hollow fittings provided with lugs are inserted in the ends of the tubes which have strengthening liners riveted thereto. Circular flanged discs may be riveted at intervals within the tubes. For triangular girders the strip B subtends an angle of 60‹ at the centre of the boom. The various parts may be secured together by bolting, brazing, welding, &c., instead of by riveting.
Patent GB-569518-A (GB)
Title: Improvements in or relating to laminated veneer or plywood
IPC: B27D1/04
Filed: 1943-11-26
Abstract: 569,518. Laminated veneers. KREMER, A., and RACHLIS, M. Nov. 26, 1943, No. 19811. [Class 145 (ii)] To form a laminated veneer or plywood in which the characteristics of the veneers and adhesive layers are accentuated, a laminated material formed of a number of layers 10, Fig. 2, is sheared at an acute angle along the line 11, to produce layers 12, Fig. 1, which may be formed with crossed grains to produce a herring- bone effect. In a further modification, a plywood formed of square lamine 10, Fig. 6, is sheared to form a concave spherical surface so as to form a number of annular rings of greater width than the thickness of the layers 10, these rings being separated by sections of glue greater in width than the thickness of glue used to join the layers 10. Ornamental effects are thus produced.
Patent GB-655246-A (GB)
Title: Improvements in or relating to looms
IPC: D03D49/24
Filed: 1946-09-03
Abstract: 655,246. Looms. HAY & ROBERTSON, Ltd., ROBERTSON, W. B., REEKIE, A. M., MACINTOSH, W. D., and HUNTER, H. H. Sept. 3, 1946, No. 19852. '[Classes 142(i), 142(ii) and 142(iii)] Driving arrangements; framework. The end frames, Fig. 1,. are of box form and are interconnected, at the back of the loom, by a tubular stay 12 enclosing a shaft 13 coupled to short shafts 16 which drive the mechanisms housed in the end frames. On one shaft 16 is a brake drum and a clutch, Fig. 7, the brake band 54 and the clutch fork 43 being coupled by linkage 45, 50 to a lever 46 operated by the starting handle and by automatic stop motions; the brake can be released without engaging the clutch by means of a handle 49. Warp stop motion, Fig. 7. On breakage of a warp thread, a cable 94 tilts a bell crank lever 93, whereupon a vertical catch (not shown) mounted on the lever 93 comes into the path of a projection 88b on a lever 88 rocked by a ram 38, thereby transmitting the movement of the lever to an arm coupled to the lever 46. Shuttle stop motion, Fig. 1. A stop tongue 95 is provided on both slay swords 24 to co-operate with spring-loaded frogs 101 in line with the swords; the tongues are raised to strike the frogs by connections from the usual stop rod controlled by the shuttle swells, the movement of one of the frogs being used to turn the lever 46, Fig. 7. Beat-up motions. Fig.' 1. In each end frame, the shaft 16 drives, through gears 20, a built-up crank 18 which actuates a channel-section slay sword 24 through a short connecting rod 26. The swords pivot on separate short shafts 21 in the end frames. Picking motion, Figs. 1 and 1a. In each end frame, skew gears 28 drive a shaft 27 carrying a picking cam 32 co-operating with a follower 35 on a parallel shaft 33, which actuates the picking stick 41 through an arm 39 and a strap 40. The nose 32c of the cam is adjustable, its heel 32f resting on a setscrew (not shown). The shaft 33 has a return spring 42 which, between picking impulses, keeps it against a rubber stop 36b, whereby the follower 35 is held just clear of the concentric part of the cam. Take-up motion. The shaft 27 at one end of the loom (not shown) carries a worm which drives the take-up motion, a clutch between the shaft and the worm being disengaged by a connection from the starting handle whenever the loom is stopped.
Patent GB-697969-A (GB)
Title: Improvements in or relating to gas-heated radiating units
Inventor: SOLEY MICHAEL JOHN NEWEY
IPC: F24C3/08
Filed: 1950-08-10
Abstract: 697,969. Grilling stoves; radiants. MAIN, Ltd., R. & A. Nov. 9, 1951 [Aug. 10, 1950], No. 19960/50. Class 126 A heat radiating unit comprises two walls spaced apart one above the other to provide a closed combustion space between them, one being formed of perforated metal and the other from imperforate refractory material and a multi-jet burner within one side of the combustion space so that the products of combustion pass out of the combustion space solely through the perforated metal wall. A large grill chamber for use in restaurants has four grill units across the back of the chamber and four grill units across the front. Two gas control cocks 26 are provided, each controlling the supply to a pair of rear burners and a pair of front burners. Each pair of burners is formed as two rows of gas nipples 37 on a common burner tube 34, and the associated grill units are carried in a common cast-iron frame 39 secured to outwardly extending lugs 38 on the burner tube. Each frame 39 has upstanding walls 40, inwardly directed supporting ledges 41 and lugs 42 which are bolted to corresponding lugs on an adjacent frame. A perforated corrugated sheet metal fret 44 rests on the ledges 41 opposite each set of nipples 37, and a ceramic backplate 45, with tapering side portions 46, rests on the fret, the spacing between the backplate and the fret decreasing as the fret inclines upwardly away from the burner nipples 37. The space between the fret 44 and the backing 45 decreases more rapidly near the burner, and products of the combustion in the space pass through the perforations in the fret, reaching the outlet 16 from the grill chambers through the spaces between adjacent supporting frames 39.
Patent GB-998690-A (GB)
Title: Copolymers
IPC: C08F36/00
Filed: 1963-05-20
Abstract: A copolymer is formed from a 1,5-diolefin of the formula <FORM:0998690/C3/1> or a 1,6-diolefin of the formula <FORM:0998690/C3/2> and an alpha olefin of the formula R6-CH=CH2 wherein R1, R2, R3, R4, R5 and R6 are each hydrogen, or a lower alkyl, cyclo-alkyl or phenyl group. Long lists of 1,5- and 1,6-dienes are included, those exemplified being hexadiene-1,5; 3,4 - diethyl hexadiene - 1,5; 3 - methyl hexadiene-1,5; 3,4-dimethyl hexadiene-1,5; heptadiene-1,6; 4-cyclohexyl heptadiene-1,6 and 4-phenyl heptadiene-1,6. Exemplified a -olefins are ethylene, propylene, butene-1 and hexene-1.  The copolymerization may be effected in an organic solvent medium with a catalyst, that is preferably insoluble in the solvent, comprising a reducible polyvalent metal compound containing at least one metal selected from vanadium, chromium, manganese, iron, cobalt, nickel and copper, and a mixture of aluminium compounds having the empirical formula R1aAlXb, wherein R1 is an alkyl radical of 1 to 8 carbon atoms, X is halogen, "a" is 2.5 to 0.5 and "b" is 0.5 to 2.5.  Of the catalyst components listed, vanadyl chloride and aluminium methyl sesquibromide are exemplified.  A number of solvents are listed of which heptane is exemplified.  The copolymer is isolated and purified by precipitating with acidified ethanol and washing with ethanol.  The copolymer may be made into a film.
Patent GB-201938-A (GB)
IPC: C01B13/11
Filed: 1923-08-03
Abstract: 201,938. Ozon-Technik Akt.-Ges., (Assignees of Kuhlenschmidt, J.). March 29, 1922, [Convention date]. Gases, treating electrically.-In a silent electric discharge apparatus for ozonizing air of the kind having dielectric partitions between the electrodes to form several passages for the flow of gas the total width of the free passages is made greater than that of the dielectrics. In the apparatus shown in Fig. 1, dielectric cylinders c, d and an insulated metal cylinder e are mounted between the electrodes a, b. The electrodes may be of other than cylindrical form. The Specification as open to inspection under Sect. 91 (3) (a) describes also the apparatus shown in Fig. 1 (Cancelled), comprising concentric electrodes 3 - - 3<c>, each consisting of fine turnings of aluminium or other metal, or of lead shot, enclosed between concentric glass cylinders, or, in the case of the innermost one 3<c>, in a glass tube. The glass cylinders enclosing the outer electrode 3 are tightly fitted between endpieces 2, 2<1> carried by insulators, 1, 1<1> and connected respectively to the positive and negative terminals of a transformer. The outer cylinder is surrounded by a ring 9 connected to earth. The cylinders enclosing the electrode 3<b> are fused together and evacuated, and are provided at the top with a metal cap 12 connected by a wire 11 with the enclosed metal; the contact 12 makes contact with a ring 5 within the end-piece 2. The cylinders enclosing the electrode 3b are fused together and evacuated and provided at the bottom with a cap 12<1> making contact with a ring 4. The tube enclosing the electrode 3<c> is fused and provided with a cap 12<2> held in an insulating ring 4<1> and connected to earth; it need not be evacuated. The ends of the containers may be filled with asbestos. The electrode members are spaced from one another by rings 6 - - 6<c>. The outer electrode 3 may alternatively consist of a wire coil or wire fabric. This subject-matter does not appear in the Specification as accepted.
Patent GB-630859-A (GB)
Title: Improvements in and relating to the hydrogenation of cyclic organic nitrogen compounds
IPC: C07D295/023
Filed: 1946-07-05
Abstract: Saturated cyclic organic nitrogen compounds are obtained by the continuous liquid phase hydrogenation of compounds containing carbon, hydrogen and nitrogen only (see Group IV (b)), in the presence of a foraminate nickel or cobalt hydrogenation catalyst. The catalysts are of the alloy type comprising the desired catalytically active metal or metals together with one or more metals more soluble in acid or alkali or other extracting liquid than the catalytically active metal or metals and are preferably crushed to a particle size grading between 1/8 inch and 1/4 inch meshes.  Cobalt catalysts, e.g. cobalt/aluminium are preferred.  An alkali such as sodium or potassium carbonate or bicarbonate may be present in the catalyst as a promoter. Specifications 570,843, 611,987, 623,595, 628,405, 628,407, and 630,161 are referred to.ALSO:Saturated cyclic organic nitrogen compounds are produced by hydrogenating compounds containing carbon, hydrogen and nitrogen only and at least one reducible cyclic group continuously in the liquid phase in the presence of a foraminate nickel or cobalt alloy catalyst.  The nitrogen atom may be in the ring which preferably contains at least five members or in an amino or nitrile group external to the ring, e.g. amino-aromatic, amino-heterocyclic and amino-alicyclic compounds and especially primary amines.  Pressures of 200-400 atmospheres, temperatures of 135-170 DEG  C., especially 140-150 DEG  C., and cobalt catalysts, particularly cobalt/aluminium are preferred.  Alkalies such as sodium or potassium carbonate or bicarbonate may be present in the catalyst or the reaction medium and the reaction mixture may be charged with ammonia.  Inert solvents such as tetrahydrofuran, dioxan and tetrahydropyran may be employed.  It is stated that cyclohexylamine, bis-para-amino-cyclohexyl - methane, dimethyl - cyclohexylamine, piperidine and hexahydrobenzylamine are obtained from aniline, bis - para - aminophenyl-methane, dimethylaniline, pyridine and benzonitrile respectively.  In an example aniline is hydrogenated in the presence of a cobalt/aluminium catalyst to yield cyclohexylamine with some dicyclohexylamine.  Specifications 570,843, 611,987, 623,595, 628,405, 628,407, [all in Group III], and 630,161 are referred to.
Patent GB-924146-A (GB)
Title: Quaternary ammonium compounds and their preparation
Inventor: COPP FREDERICK CHARLES
Filed: 1959-06-12
Abstract: The invention comprises compounds containing a cation of the general formula <FORM:0924146/IV(a)/1> wherein R1 is an ethyl, 2-hydroxyethyl, isopropyl, or allyl group when NR2R3 is a dimethylamino or pyrrolidino group, or R1 is a methyl group when R2 and R3 are the same or different and each is an ethyl or 2-hydroxyethyl group; the preparation thereof by reacting a tertiary amine having all but one of the groups desired in the quaternary ammonium cation attached directly to the nitrogen atom, with a reactive ester of the hydroxy derivative of the group it is desired to introduce; and pharmaceutical compositions containing them.  The quaternisation reaction includes the intramolecular rearrangement of a tertiary n-butylamine O-CF3,C6H4,CH2,NR1 ,(CH2)4,Z (where Z is a reactive ester group) by heating to form the compound where NR2R3 is a pyrrolidino group.  The teritary butylamine is formed in situ from the secondary amine and a 1,4-disubstituted-butane Z,(CH2)4,Z.  The salts of the quaternary ammonium cation may be converted by double decomposition in solution or on an ion exchange column into the salt of another anion.  o- Trifluoromethylbenzyldimethylamine is prepared by reducing o-trifluoromethylbenzoic acid with lithium aluminium hydride to give o-trifluoromethylbenzyl alcohol forming the bromide with hydrobromic acid and reacting this with dimethylamine. Pharmaceutical compositions useful for the treatment of hypertension, comprise the quaternary ammonium compounds of the invention together with an acceptable carrier therefor, and may be formulated as powders, granules, capsules, cachets, tablets, suspensions, solutions, emulsions, suppositories or pessaries.
Patent GB-634129-A (GB)
Title: Improvements in and relating to the production of dextran
IPC: C08B37/02
Filed: 1947-07-28
Abstract: Dextran for use in pharmaceutical preparations, especially for degradation to a blood plasma substitute, is made by growing Leuconostoc meserentoides in refined sucrose media containing as a growth factor for the micro-organisms the liquid obtained by boiling a suspension in water of fresh yeast free from autolyzed products, e.g. a 20 per cent w/v suspension, at pH7.5-8 and separating off the cell residues.  The Leuconostoc is preferably a strain obtained by continuous subculture on a solid sucrose-peptone-agar medium followed by sub culture in pure sucrose media containing the yeast extract and ammonium, potassium, magnesium and phosphate ions.  An example of the bulk medium for dextran production is: the acqueous yeast extract 250ml., microcosmic salt 5g., potassium dihydrogen phosphate 1g., magnesium sulphate 0.5g., sucrose 100g., tap water to 1000ml.
Patent GB-274293-A (GB)
Title: Subsoil plough
IPC: A01B13/08
Filed: 1926-08-17
Abstract: 274,293. Kuhn, A. Aug. 17, 1926. Single and multiple furrow ploughs; lifting tool frames manually; tools.-The subsoiling tool l of a subsoil plough is pivotally connected to a corner of a lever parallelogram c, d, e, f adapted to be actuated by means of a hand-lever for raising and lowering the tool, a fixed guide being provided for keeping the tool in position. The lever arms c, d are pivotally mounted on the plough frame a and an extension of the arm c forms the handlever, which is provided with a spring-controlled bolt h for engaging a toothed locking-segment i. The guide for the tool l consists of a bar m and the bolts m<1> by which it is fastened to a depending bar n. In single-furrow ploughs the prong l may run in the furrow being formed or in the furrow formed previously In two-furrow ploughs the subsoiler may take the place of the front plough body.
Patent GB-664308-A (GB)
Title: Improvements in information displaying devices
IPC: G09F11/10
Filed: 1949-08-04
Abstract: 664,308. Rack stands. BULMER'S (CALCULATORS), Ltd., and SALMON, F. N. April 6, 1950. [Aug. 4, 1949] No. 20338/49. Class 52 (iii). [Also in Group XXXVIII] An information displaying device consists of a standard having co-axial circular head and foot portions all rotatable about a fixed base, peripheral grooves in the head and foot portions guide the pivot pins of display panels into circular seatings which form a continuation of the grooves. Figs. 1 and 2 show the elevation and plan views of a display device comprising a metal tubular standard 1 which has head and foot portions 2, 3 respectively, the whole assembly pivoting about a fixed base 4. A A series of holes 5 are regularly spaced around the periphery to accommodate the pivot pins 6 of display panels 7 as shown in Fig. 3. The holes 5 are intersected by portions 8 of reduced diameter which have a series of grooves 9 which lead to, and act as guides for, holes 5. To insert a display panel the upper pivot pin 6 is inserted into a hole 5 in the head 2 using a groove 9 as a guide and the lower pin 6 is swung downwards towards the corresponding groove 9 in the foot 3 and then lowered until the end of the pin rests in the bottom of the hole 5. The grooves in the foot are disposed on a circle of slightly larger diameter than those on the upper seating so that the panels will remain in a position into which they have been swung.
Patent GB-1421444-A (GB)
Title: Methods for fabricating semiconductor structures
IPC: H01L21/331
Filed: 1973-04-30
Abstract: 1421444 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 30 April1973 [22 May 1972] 20409/73 Heading H1 Deleterious dislocation generation due to dopant precipitation is minimized during semiconductor device manufacture by carrying out all the relatively high-temperature processing steps (diffusion, epitaxial deposition, pyrolitic deposition, oxidation, &c.) within a temperature range which allows substantially maximum solid solubility of the dopant(s) present in the semi-conductor material. The only example for which temperatures, &c., are given is As in Si, but other Si dopants referred to are As, B, P, Pb, Sn, Al, Li, Ga, Au, Cu, Co, Mg, Sb, Bi, Zn and Mn. Ge is also mentioned.
Patent GB-419130-A (GB)
Title: Improvements in or relating to shock-absorbers for vehicles
IPC: F16F7/04
Filed: 1934-07-12
Abstract: 419,130. Controlling vehicle shockabsorbers. FUSARI, G., 25, Via Leonardo da Vinci, Turin, Italy. July 12, 1934, No. 20493. [Class 108 (iii).) In a vehicle shock-absorber of the frictiondisc type having remote hydraulic control, the discs 1 are compressed by means of a number of plungers 13 acting, under the liquid pressure, on one of the discs, the plunger-cylinders 11 being provided in a pressure plate 4 mounted on a bolt 5 carrying the discs. Ribs 9 on the plate 4 enclose channels 12 connecting the cylinders 11 with an annular chamber 7 in the hub 6 of the plate, the pressure liquid being forced through a pipe 15 into the chamber from a manually-operable pressure device. The plungers may be acted on by weak springs to prevent sticking. A one-arm or, as shown, a two-arm system may be used to secure the shock-absorber to the vehicle.
Patent GB-832149-A (GB)
Title: Improvements in or relating to smokers ashtrays
Inventor: LEWIS GEORGE HENRY
IPC: A24F19/00
Filed: 1958-06-26
Abstract: 832,149. Smokers' ash-trays. C.G.L. CONSULTING & EXPERIMENTAL ENGINEERS Ltd. June 26, 1958, No. 20532/58. Class 130. A cigarette rest in an ash-tray is formed by a pair of circular wires 6, 7, Fig. 2, supported from the ash-tray edge by radial arms 8. The ash-tray 1 is funnel-shaped and connected by a bayonet connection to an ash-receiving and extinguishing chamber 4 positioned beneath a flat tray 10 which catches cigarette ends falling over the edge of the ash-tray 1. The wires 6, 7 are provided with depressions 9 to locate cigarettes.
Patent GB-406917-A (GB)
Title: Improvements in photographic bleaching-out layers
IPC: G03C7/02
Filed: 1933-07-21
Abstract: A photographic bleach-out layer is produced by casting from a solution of a cellulose ester, ether, or ether-ester, which is incompletely acylated or etherified, and a bleach-out dye in an p organic solvent.  The hydrolysis of the ethers may be effected by strong acids such as hydrochloric or sulphuric acid.  Sensitizers and stabilizers may be added to the layers.  Examples are given of (1) a layer of partly hydrolyzed cellulose acetate in which is incorporated Nile Blue, seleno-pyronine, resorcin benzoin - dimethylether - boron - fluoride, maleic acid, and diethyl-allylthiourea; (2) a partly hydrolyzed ethyl cellulose containing Brilliant Green and diallylthiourea; and (3) a cellulose butyrate containing only 2--2\ba1/2\be butyozl groups in which is incorporated methyl violet and thiosinamine.
Patent GB-350282-A (GB)
Title: Improvements in change speed gears
IPC: F16H3/14
Filed: 1930-07-08
Abstract: 350,282. Reversible change-speed gearing. BARFORD & PERKINS, Ltd. and PERKINS, J. E. S., Queen Street, Peterborough. July 8, 1930, No. 20687. [Class 80 (ii).] ] Gearing suitable for driving road vehicles at equal speeds forward and reverse comprises an engine flywheel 1 with opposed hollow cone clutch seatings 2, 3. Coacting male cones 10, 13 are connected by a thrust bearing 11 so as to be slidable together alternatively into clutch engagement. The cone 10 is splined on the outer end 9 of a shaft 5 which carries inside gear casing 7 a pinion 16. The cone 13 is splined to a sleeve 14 on shaft 5 which carries a pinion 18 within the casing. The pinions 16, 18 are connected by reverse-driving bevel or spur trains to a shaft 35, which is connected by twospeed gearing to driven shaft 38. Control is effected by a lever 27 acting through springs 28, 30.