baber/WOPTO huggingface dataset:
Patent GB-368698-A (GB)
Title: Improvement in devices for discharging loads from aircraft
IPC: B64D1/02
Filed: 1930-09-06
Abstract: 368,698. Dropping loads from aircraft. FABBRICA ITALIANA MAGNETI MARELLI, 22, Corso Venezia, Milan, Italy. Sept. 6, 1930, No. 26676. Convention date, Sept. 7, 1929. Void [Published under Sect. 91 of the Acts]. [Class 9 (ii).] A device for discharging loads from aircraft, of the kind comprising a plurality of suspension gears each having an electrically - actuated control member, has means whereby a switch in the control member circuit is opened when the load is discharged. The load 4 is suspended from a hooked lever 2 pivoted on a shaft 3, and normally engaged by a looking arm 5 pivoted at 6. This arm 5 is normally looked by a pivoted armature 7 of an electromagnet 8, energized in shunt from a feeding circuit 10, 11 through wires 12, 13, the latter having a switch 14. A switch 17 in the electromagnet circuit is normally closed and is adapted to be actuated by an arm 51 of the locking arm 5. In operation, a main switch 15 is closed as is also the switch 14. On closing a further switch 16 the electromagnet 8 is energized and attracts the armature 7 whereupon the locking arm 5 and hence the hook 2 are released, the hook being swung by the weight of the load 4 which is thus discharged. In the same movement the arm 51 of the locking arm 5 actuates the switch 17 and the circuit of the control device is opened. A signal device or a lamp may be arranged in the circuit 12, 13, it being energized when the circuit is closed and rendered inoperative on discharge of the load. Alternatively the said signal device or lamp may be so arranged as to be energized on discharge of the load.
Patent GB-658301-A (GB)
Title: Polymeric products derived from diolefines and vinyl aromatic compounds and method of making same
IPC: C08F236/10
Filed: 1948-10-14
Abstract: Mixed polymeric products are prepared by emulsifying with water and polymerizing in the same medium and at temperatures between 70 DEG and 110 DEG  C. alternately a monovinyl aromatic compound and a conjugated diolefine, the latter in amount of 37.5 to 94.5 mol. per cent of the polymerizable compounds, and in one such reaction polymerizing in the absence of the monomeric vinyl aromatic compound at least 37.5 mol. per cent of the diolefine based on both starting materials while the emulsion contains minor amounts of hydrogen peroxide and an iron salt of an inorganic acid and enough acid to give a pH between 1.5 and 3.  Specified monomers are styrene, o-, m- and p-chlorostyrenes, p-methyl-styrene, o-ethyl-styrene and p-isopropyl-styrene, and butadiene, isoprene and 2,3-dimethyl-butadiene.  Mixtures of vinyl aromatic compounds and of dienes may be used.  The successive polymerizations may be carried out in either order, but it is preferred to polymerize the diolefine first.  When more than 37.5 mol. per cent of diolefine is employed, all or part of the excess may be copolymerized with the styrene, prior to or after polymerizing the diolefine in the absence of the monomeric vinyl aromatic compound.  The polymerization of the vinyl aromatic compound, with or without the diolefin, is also preferably effected in the presence of the above complex catalyst but may be effected with other catalysts, e.g. hydrogen peroxide alone, or in the absence of catalysts.  The iron salt, e.g. ferric chloride, bromide, nitrate and sulphate, and ferrous chloride and bromide, is generally employed in amounts of 0.2 to 500 parts by weight of iron per million parts of diolefine, and may be added as such or formed in situ from an iron oxide and a portion of the acid.  The hydrogen peroxide is used in amount of at least 0.05 per cent of the diolefine.  Emulsifying agents which may be used include a sodium salt of sulphonated sperm oil, egg albumen and alkali metal sulphonates of aliphatic hydrocarbons or alkyl-aromatic hydrocarbons of high molecular weight.  Rubber anti-oxidants, e.g. phenyl-beta-naphthylamine, di - (p - hydroxyphenyl) - cyclohexane, p,p1 - dimethoxy-diphenylamine or a condensation product of aniline and butyraldehyde, are added, preferably after polymerization.  The products are coagulated by freezing or by adding aqueous hydrochloric or sulphuric acid or a salt, washed and dried.  They may be moulded to obtain smooth, flexible articles, milled into sheets and used as electrical insulating coatings.  The materials may also be vulcanized to render them non-thermoplastic but still flexible.
Patent GB-676406-A (GB)
Title: Improvements in fan impellers
IPC: F04D29/38
Filed: 1950-11-03
Abstract: 676,406. Screw fans. SPENCER, T. D., and PATENT LIGHTING CO., Ltd. Nov. 3, 1950. No. 26934/50. Class 110(i) A fan impeller comprises a boss and four blades integral therewith, wherein the leading edge 10 of each blade is substantially straight as viewed in the direction of the impeller axis, and the blade width is greater near the inner end of the blade than near the outer end and is not less than one-fifth (and may be one-quarter) of the impeller diameter at a distance from the impeller axis not greater than one-sixth of the impeller diameter. The trailing edge 12 is displaced axially of the impeller with respect to the leading edge 10, with which a substantial portion of its radially outer part makes an angle of 5 degrees and 25 degrees, but preferably 17 degrees. The inner trailing portion 13 is curved in such a manner that the generator of its concave surface is a substantially straight line 14-14, which always remains parallel to itself. The line 14-14 makes a trailing angle of 15 degrees to 35 degrees, but preferably 25 degrees, with a perpendicular X-X from the middle of the blade tip to the impeller axis. Preferably, the leading edge 10 is in a plane of rotation, but may lie between a backward angle of 10 degrees, and a forward angle of 15 degrees, with respect to the plane. Its pitch angle with respect to the plane may be slightly positive or negative. As shown, it preferably makes a leading angle with respect to the line X-X. The impeller boss extends from the plane of rotation of the leading edge 10 towards the plane of rotation of the most rearward part of the trailing edge 12 by a distance equal to at least half, and preferably three-quarters, of the distance between the two planes. The impeller is moulded from synthetic resin, or is diecast. Specification 502,740, [Group XXXIII]., is referred to.
Patent GB-1454865-A (GB)
Title: Preparation of zerovalent nickel complexes from elemental nickel
IPC: C07F15/04
Filed: 1974-06-18
Abstract: 1454865 Preparing zerovalent nickel complexes E I DU PONT DE NEMOURS & CO 18 June 1974 [19 June 1973 13 Dec 1973] 26947/74 Headings C2P and C2J A zerovalent nickel complex of the formula Ni(MZ 3 ) 4  or Ni(MZ 3 ) 2 A wherein M is P, As or Sb, Z is R or OR, R is an alkyl or aryl radical having up to 18 carbon atoms, at least one Z is OR and the R radicals of a given MZ 3  may be the same or different and wherein A is a mono-olefinic organic compound with no other carbon-carbon unsaturation and having from 2 to 20 carbon atoms, is obtained by reacting elemental nickel with a ligand MZ 3  wherein M and Z are as defined above at a temperature in the range of 0-150 C. in an inert atmosphere in the presence of at least 5 moles per million moles, based on the amount of the ligand, of a catalyst compound of the formula wherein M is as defined above, R<SP>1</SP> and R<SP>11</SP> are alkyl or aryl radicals having up to 18 carbon atoms, and which may be the same or different; x and z have a value of 1 to 2, y is 0 or 1, the sum of x, y and z is 3; and X is a halide selected from -Cl, -Br and -I, and wherein for the preparation of Ni(MZ 3 ) 2 A there is also present a mono-olefinic organic compound A, especially maleic anhydride, acrylonitrile or fumaronitrile. The catalyst may be preformed but when the ligand contains at least two OR<SP>1</SP> groups attached to M the catalyst may be prepared in situ by introducing an initiator into the reaction mixture, the initiator being a suitable halide source, e.g. a halide or alkyl-substituted halide of P, As or Sb, a metal halide, elemental halogen, or the corresponding hydrogen halide or thionyl halide, particularly suitable halides being PX 3 , TiX 4 , ZrX 4 , HfX 4  and HX where X is Cl, Br or I. The nickel used to form the complex is preferably in finely-divided form. The products are useful as catalysts for the hydrocyanation of olefinic compounds.
Patent GB-737582-A (GB)
Title: Improvements in or relating to heat exchange devices
IPC: F28F1/12
Filed: 1952-10-27
Abstract: 737,582. Tubular heat-exchange elements. CHERRY, F. G. Oct. 27, 1953 [Oct. 27, 1952], No. 26991/52. Class 64 (3). [Also in Group XXII] A method of making a heat-exchange tube comprises forming a tube element with at least one longitudinally-extending external fin and rolling said fin in such manner that the portion thereof remote from the root of the fin has the surface area expanded, whereby the fin is deformed to offer a relatively large heat-transference area. A tube 1 is formed with two integral fins 2 of a thickness increasing from the root outwardly by extruding the tube and fins together or by making the tube in two halves by rolling and subsequently uniting the halves. The fins 2 are passed between driven conical rolls 3, which may be fluted at 4 and whose axes are in a common plane perpendicular to that of the tube, to roll and deform the fins into a wavy shape. The fins, e.g. of aluminium alloy, may be maintained at a temperature of 200- 560‹ C. when being passed between the rollers, which may themselves be heated. The fins may be planished prior to rolling. The tube may be twisted to and fro as it moves axially, the fins being deformed by smooth rollers.
Patent GB-854551-A (GB)
Title: Improvements in or relating to car seats
IPC: B60N2/70
Filed: 1958-08-22
Abstract: 854,551. Seats; resilient mountings. AKERBLOMSTOLEN A. B. Aug. 22, 1958 [Sept. 12, 1957], No. 27040/58. Classes 52(1) and 52(2) A vehicle seat with base plate A and shock absorbing means B has a base plate C for the seat bottom hinged at E to a back plate G for the seat back which has a convex projecting portion H to support the lumbar region, the top edge of plate G being suspended in a vertically disposed guiding arrangement F. In a modification the seat is mounted in a frame I which is movable fore and aft to allow adjustment of position with variation of inclination.
Patent GB-362973-A (GB)
Title: A lead antimony alloy for pressed tubes, more particularly for cable sheaths
IPC: C22C1/02
Filed: 1930-09-10
Abstract: A lead alloy particularly for the sheaths of electric cables is produced by forming an alloy of pure lead and antimony and adding thereto a third component which is either a chemical compound of antimony and one or more of the metals cadmium, copper, nickel, manganese, and magnesium, or a solid solution of antimony and tin.  A suitable alloy for cable sheathing consists of 98 per cent or more of pure lead and up to 1 per cent of antimony, the third component making up the remainder.  In making the alloy a mother alloy of lead and the third component and a second mother alloy of lead, antimony, and the third component are first made.  The first mother alloy is diluted in pure lead and the second mother alloy added thereto in such quantities as to make up the desired final composition.
Patent GB-602550-A (GB)
Title: Improved drawn fibres of hydrolysed ethylene/vinyl organic ester interpolymers
IPC: D06M11/05
Filed: 1945-10-17
Abstract: Artificial filaments of substantially completely hydrolysed ethylene/vinyl organic ester interpolymers are given an improved dye receptivity, an increased elongation and an improved resistance to boiling water by drawing them at a temperature of from 80 DEG  to 100 DEG  C. in water, steam or an aqueous salt solution, and then heating the drawn filaments in a taut condition at a temperature of from 101 DEG  to 106 DEG  C. in a medium containing water or steam.  The filaments may be dry-spun from solutions of the polymer in, for example, a mixture of trichloroethylene and ethanol, a primary aliphatic alcohol, a primary or secondary aliphatic amine or a mixture of an aromatic hydrocarbon with such alcohols and amines or alternatively the filaments may be melt-spun.  The interpolymers, which are hydrolysed before spinning, contain ethylene and the vinyl ester in a mol. ratio of from 1 : 1 to 5 : 1 and specified vinyl esters are the formate, acetate, propionate, butyrate, stearate, benzoate, cyclohexanoate, isobutyrate, palmitate, myristate, toluate and naphthoate.  The hydrolysed interpolymer may be extracted with hot methanol prior to spinning.  Examples are given in which dry-and melt-spun filaments of hydrolysed ethylenevinyl acetate interpolymer are treated.  Specification 527,532 is referred to.
Patent GB-360115-A (GB)
Title: The manufacture of highly active substances having the action of sexual hormones
IPC: A61K38/22
Filed: 1930-09-11
Abstract: Concentrated hormone substances are obtained by treating purified hormone preparations with an acid and then separating the alkali soluble portion of the material.  A hormone oil dissolved in alcohol is treated with acid if desired in the presence of an emulsifying agent, such as a salt of iso-propylnaphthaline sulphonic acid, the diluted solution extracted with ether, the ether solution washed with sodium bicarbonate and carbonate and extracted with dilute caustic soda.  The solution is then acidified and extracted with ether into which the major portion of the hormone passes.  After drying and evaporation of the ether a hormone oil of great activity remains. Specification 355,057 is referred to.
Patent GB-926648-A (GB)
Title: Writing or painting medium
IPC: C09D11/18
Filed: 1959-08-07
Abstract: A writing or painting medium for use in ball point pens or similar devices has a viscosity of 1000-3000 poises at 20 DEG C. and includes silica gel with particles less ,02 m  in size which have been intimately mixed with wax.  The viscosity of the medium is reduced by engagement with the moving ball during use, and the medium solidifies again on cessation of the movement of the ball. A suitable wax is carnauba, beeswax or polyethylene glycol of molecular weight exceeding 1000, e.g. "Carbowax" (Registered Trade Mark).  Examples of suitable media are: I. Convention ball point pen ink for tropical climates 100 parts; silica gel 10 parts; polyethylene glycol wax 20 parts.  II. Colophony 25 parts; alkali metal vicinoliates 20 parts; oil-soluble colouring agents 15 parts; silica gel 6 parts; carnauba wax 12 parts.  The media may be used as writing inks or for application of lipstick, mascara or other cosmetic substance.
Patent GB-1055892-A (GB)
Title: Improvements in or relating to wood chips production
IPC: B27L11/02
Filed: 1963-07-09
Abstract: 1,055,892. Woodworking. SODERHAMNS VERKSTADER A.B. July 9, 1963 [July 9, 1962; June 28, 1963]. No. 27177/63. Heading B5L. In apparatus for cutting wood chips from a log the log is fed by rollers 35, 36, Fig. 3, along a guide 16 to a cylindrical drum 24 rotatable on a shaft 23 inclined to the guide 16 by an electric motor 27 and belt-drive 26. The drum consists of a plurality of discs 28 having cutters 29, each cutter having an edge 37A, Fig. 5, which, during cutting is parallel to the direction of feed of the woodpiece and to the direction of the fibres, and an edge 38A for severing the strip at an inclined angle to the fibres. The knives are located in slots 39, Fig. 6, in the discs and radially positioned by screws 40. Wedges 42 secured by screws 43 serve to hold the knives in the slots. The discs are formed with chip-receiving pockets 43 in front of the knives and recesses 39A behind the knives for receiving the protruding sides of the knives which are wider than the discs. The inclination of the drum to the direction of feeding of the woodpiece causes the knives to cut the strip portions from the end of the woodpiece, the leading end of which is thus formed, during the chipping operation, with a plurality of steps, Fig. 2. The edge 38A is inclined to the edge 37A at an angle of, for example, 70-15 degrees, to break up the strip portion into chips. In another embodiment, the drum is formed with spirally-running slots, one side of which have the same inclination as the main cutting edges of the cutters whereas the others have the same inclination as the axis of the drum. The cutters 29, Fig. 10, are mounted in holders 45 fitted into axially running slots 44 in the drum. Each holder has two parts between which the cutters are clamped by screws 46. The holders are axially inserted in the slots and retained with a lip 50 engaging a recess by a clamping bar 49. Distance pieces 52 are located in the bottom of chip-receiving pockets 43. In a further embodiment, the cutters are mounted on a plane disc and the woodpiece is fed longitudinally to the disc at an acute angle to the disc. In other embodiments, a plurality of guide tracks are disposed about the drum or disc, and the drum or disc may be hollow to receive the chips or for the woodpieces to be fed from the inside of the drum, the chips being collected outside the drum.
Patent GB-279093-A (GB)
IPC: D06N5/00
Filed: 1927-10-13
Abstract: 279,093. Carl, F., and Riedel, C. Oct. 15, 1926, [Convention date]. Materials, special.-A material for the tread surfaces of roads, comprises sheets or slabs of felted animal fibre impregnated with asphalt or the like. Benzol, petroleum, or other mineral oil, may be used as a solvent for the bituminous matter, and heat may be applied to vaporize the solvent whilst the impregnated felt is subjected to pressure.
Patent GB-533069-A (GB)
Title: Improvements in or relating to cut-off mechanisms
IPC: B26D5/22
Filed: 1939-10-05
Abstract: 533,069. Length indicator in cutting off mechanism. SWIFT, jun., Inc., G. W. Oct. 5, 1939, No. 27271. Convention date, May 15. [Class 31 (i)] The invention relates to length indicators for use in mechanisms for cutting off blanks of corrugated paper board or the like of predetermined length. In the machine illustrated co-operating knives 1, 2, Fig. 1, of rotary type are interconnected by spur gearing 4, 6. Sheet material 38 is fed past the knives by rollers 37 associated with the cut-off machinery. A length of cut indicating device comprises a rotary arm 50 on the delivery side of the cutters 1, 2 and mounted in brackets 52 slidable lengthwise of the machine. The member 50 is driven in timed relation to the cutters by a splined spindle 54 bevel geared to a shaft 2a. A second bevel gear 60 drives the arm 50 which may carry a small printing die 62 receiving ink from a roller 63. The arm 50 is so co-ordinated with the knife 2 that it marks the web at the same time as the knife cuts. The operator adjusts the brackets to the length required to be cut. If the marks do not coincide with the length of blank cut a servomotor 47 is operated to adjust variable speed transmission for regulating the length of cut. Another servomotor 32 alters variable speed transmission of the cutting speed of the knives to keep the speed of cut substantially equal to the speed of travel of the web. The position of the brackets 52 may be adjusted by a cross-shaft 64, Fig. 3, carrying a gear 65 meshing with a rack 66. A scale 69 is provided. Push buttons may be arranged to operate the servomotors forward or reverse to increase or decrease the cutting speed to the speed of travel of the web. After the machine has been accurately set for one length of blanks, a clutch 79, Fig. 1, may be disconnected so that the brackets 52 may be reset for the next run after push buttons are operated to reset the cutting speed and travel of the web. Specification 482,010 is referred to.
Patent GB-1059443-A (GB)
Title: Screw conveyors
Inventor: PERROTT ALBERT
IPC: B65G33/34
Filed: 1963-07-10
Abstract: 1,059,443. Screw elevators. SIMPLEX DAIRY EQUIPMENT CO. Ltd. June 22, 1964 [July 10, 1963], No. 27333/63. Heading B8A. A screw elevator having a screw 1 working in a casing 2 is driven from motor 11 through shaft 7 and gears 9 and 6, the drive thereto from motor 11 passing either through gears 12a, 18a, 18 and 13 or through 12 and 13 so that the drive has two speeds. The gearing is enclosed by casing 23 and by casing 20. The height of the elevator is adjustable by operation of handle 34 which drives winch 33 which through rope 32 adjusts slide 29 to a predetermined position along guide 30 fixed on casing 2 whereby the position of stays 27 is varied to adjust the height of the elevator.
Patent GB-1085462-A (GB)
Title: Improved cladding plate for architectural or engineering applications
Inventor: DAVIES LAWRENCE WILLIAM
IPC: E21D11/00
Filed: 1963-07-11
Abstract: 1,085,462. Joining cladding plates. HUNTLEY BOORNE & STEVENS Ltd. July 10, 1964 [July 11, 1963], No. 27455/63. Heading E1K. A metal cladding plate for engagement with similar plates comprises on one edge 2 a rearwardly disposed groove 3 between the edge 2 and a flange 4 parallel with the plate and on the other edge a rearwardly stepped tongue 6. for engagement with a groove 3 of another plate, the flange 4 being extended beyond the edge of the plate for attachment to a batten 8. The groove and flange 4 may be formed by bending the edge of the plate or by a separate part welded on.
Patent GB-167106-A (GB)
Title: An improved water heater
Filed: 1920-09-27
Abstract: 167,106. Long, S. J. T. Sept. 27, 1920. Internally - f i r e d boilers.-A water-heater formed with separate sides, back and front, containing water spaces 5, and enclosing a combustion chamber 3, is fitted with couplings 9 across the interior corners of the chamber which provide communication between the water spaces. Horizontal water-chambers 10, fitted with baffles 11 and baffle spacers 11<a> and preferably trapezoidal in plan, project from the water spaces into the combustion chamber. Detachable securing-clips are fitted to the corners of the heater, which rests in a base provided with a channel for collecting any condensed water. The heater is fitted over a gas burner and provided at the top with an uptake for the products of combustion. The slower chambers 10 are shielded from the burner by a perforated baffle 14. The water enters at the top of the heater by the pipe 17 and after passing through the spaces in series leaves at the top, the coupling between the first and last water space being a blank fitting. Extra blank couplings or stays may be fitted. In a modified construction for the basement of a building, each chamber is replaced by a number of tubes, secured to the water spaces by nuts and provided with baffles comprising a series of fingers. In this construction the sides, back, and front are bolted together by corner-pieces.
Patent GB-1428170-A (GB)
Title: Apparatus for measuring low thermal fluxes
IPC: G01N25/18
Filed: 1973-06-08
Abstract: 1428170 Measuring heat loss from surfaces EUROPEAN ATOMIC ENERGY COMMUNITY 8 June 1973 [9 June 1972] 27475/73 Headings G1D and G1N Apparatus for-measuring low thermal fluxes from a surface comprises a metal contact plate 1, a rod 3 attached to the plate 1 and at least two temperature measuring elements, e.g. thermocouples, 6, 7 along the rod 3. Means are provided for maintaining the end of rod 3 which is furthest from the plate 1 at a fixed or variable temperature which is less than the temperature of the surface and which is such that the plate does not undesirably disturb the temperature of the surface, and thermal insulation 4 is disposed around the rod 3 and in contact with or adjacent the plate 1. The temperature maintaining means may be effected by passing cooling fluid through end 8 (as shown) and/or by altering the rod length. The thermal insulation 4 may be glass wool and the rod may be of metal which may be different from that of plate 1. One or more temperature measuring elements 10, 11, e.g. thermocouples may be positioned in the surface of wall 2 in order to monitor the temperature thereof so as to determine whether it is affected by that of end 8. For low heat loss, the flux is proportional to the temperature difference #T.