baber/WOPTO huggingface dataset:
Patent GB-319687-A (GB)
Title: Improvements in or relating to the production of urea-formaldehyde condensation products
IPC: C08G12/12
Filed: 1929-09-11
Abstract: 319,687. Budd Manufacturing Co., E. G., (Assignees of Kelley, G. L., and Deisley, M. W.). Sept. 26, 1928, [Convention date]. Condensation products of urea and thiourea with formaldehyde.-Urea is heated in the presence of ammonia with an aqueous solution of formaldehyde, or of a polymer such as paraformaldehyde or trioxymethylene, the mixture having a pH value between 5.2 and 7.0; after short boiling, thiourea is added and the boiling continued for several hours until a sample does not dissolve in water. At this point a retarding agent, comprising a salt of a strong base with a weak acid such as sodium acetate, is added, and the filtered liquid then concentrated, preferably in vacuo. When about 20 per cent has been removed, the excess of formaldehyde is eliminated, preferably by addition of urea; when 30 per cent has been driven off, formic acid is added and the concentration continued until the product may be cast while hot in a mould. Instead of formic acid, other acids and acid salts may be used, e.g. acetic and tartaric acids, acid potassium sulphate, potassium dihydrogen phosphate, aluminium chloride and acetyl chloride. The moulded jelly is finally heated during a period of weeks at gradually increasing temperature up to 180‹ F., whereupon the bubbles rise to the surface and a hard glass-like product is obtained. Prior to casting, the liquid may be coloured with soluble dyes or may be mixed with fillers or pigments. Examples are given. Specifications 294,253 and 294,254 are referred to. Reference has been directed by the Comptroller to Specification 313,615.
Patent GB-1185446-A (GB)
Title: Flong and Process for its Preparation.
IPC: B41N11/00
Filed: 1968-05-14
Abstract: 1,185,446. Printing plates. WOOD FLONG CORP. 14 May, 1968 [22 March, 1968], No. 22736/68. Heading B6C. [Also in Division D2] A process for the production of a stereotype dry mat, said mat being free from shrinkagepreventing agents in effective amounts, which includes the steps of forming a wet lap, and a primary drying of the wet lap to a desired moisture content in the absence of any constraint to shrinking, wherein during the primary drying the mat is not exposed to a temperature in excess of the boiling point of water during at least the latter part of the primary drying of the lap. This latter part of the drying may be from 20-30% moisture content, preferably 40-55%, downwards, or the entire primary drying step may be carried out at or below 212‹ F. This drying at or below 212‹ F. may be accomplished by air at a temperature below 190‹ F., preferably 190- 140‹ F., or may be by radio-frequency (RF) heating, or by a combination of both. The first part of the primary drying may be performed using air at 350‹ F., or steam-heated drums. The stereotype mat may comprise a co-felted mixture of cellulosic fibres and fillers.
Patent GB-742872-A (GB)
Title: Method of, and means for, facilitating the take-off of aircraft provided with landing skis
IPC: B64C25/52
Filed: 1952-11-04
Abstract: 742,872. Aircraft skis. DISPOSITIFS OLEO-PNEUMATIQUES. Nov. 4, 1952 [Nov. 9, 1951], No. 27761/52. Class 4. A method for facilitating the take off of aircraft provided with landing skis consists of inserting, between the sliding surface of each ski and the ground, one or more substances or elements operating solely during take-off to provide, between said substance or element and the ski or the ground, or between the said elements themselves, a coefficient of friction lower than that which would be produced between the said ground and the skis. In the embodiment of Fig. 1, suitable for take-off from comparatively dry and homogeneous ground, the ski 1 is supported from the aircraft by a shock absorber 2, and is provided at its forward end with an atomizing nozzle 3 fed through a pipe 4, 5, 6 from a source of lubricant on the aircraft, possibly the fuel for a jet engine. In Fig. 4, the ski runs on a strip of oiled canvas or nylon 8. The strip may be formed at its edges with beads containing a steel or hemp cable. Additionally, as shown, guiding rollers 13 on stakes 14 may be placed at the edges of the strip and disposed at such intervals that at least two rollers contact the ski 11 on each side at any time. Alternatively, the strip may be bent at its edges to enclose the lower portion of the ski 11, vertically extending reinforcing portions serving to guide the ski longitudinally while permitting the ski to rise at take-off. In Fig. 6 (not shown), a plurality of horizontal axis rollers are provided with stakes and earth plates so as to be adjustable in height for uneven ground, each ski running on at least two such rollers at any time. In Figs. 7 and 8 (not shown) is described a wheeled support comprising two wheels mounted on a non-rotary axis provided with a pin adapted to fit into a socket on the ski, the wheeled support being left on the take-off ground when the aircraft rises. In Fig. 11, an oiled cable 39 is secured by fastenings 42 to a series of plates 40, and each ski 4 is formed with a part cylindrical recess 43 adapted to run on the cable. The Specification also illustrates rails on which each ski runs, the rails and skis having cooperating surfaces of various shapes.
Patent GB-1147194-A (GB)
Title: Improvements in harvesting methods and apparatuses therefor
Inventor: WEICHEL ERNST
IPC: A01D57/00
Filed: 1966-06-22
Abstract: 1,147,194. Loading crops. E. WEICHEL. 22 June, 1966 [23 June, 1965], No. 27798/66. Heading B8E. [Also in Division A1] A rotatively driven drum 99 and reel 103 deposit crop on a platform 85 over which sweeps a pronged conveyer 86. The crop is moved by the conveyer to a roller 105 which transfers the crop to a cart. The speed of rotation of the roller 105 and the speed of operation of the conveyer 86 are adjustable.
Patent GB-831754-A (GB)
Title: Production of preforms and longitudinally curved articles of polytetrafluoroethyleneresin
IPC: B29C48/475
Filed: 1957-09-04
Abstract: Longitudinally curved articles 30 are extruded (see Group V) from polytetrafluoroethylene resin by supplying different areas of the extrusion die 12 with particles of the resin mixed uniformly with different compositions of an extrusion aid.  The mixtures may be <PICT:0831754/IV (a)/1> <PICT:0831754/IV (a)/2> combined in a preform.  A preferred composition, made into a preform having portions 32 and 38, 36, is (parts by weight) p.t.f.e. 81, chrome yellow pigment 1.8, polyisobutylene thickener 0.2 and V.M.P. naphtha from 14 to 22, the composition of the portion 32 having, e.g. 16 parts of naphtha and that of the other portion 38, 36 having 20 parts naphtha.  White oil may be substituted for the naphtha and carbon black for the chrome yellow pigment, three such compositions being given. Specifications 732,100 and 796,583 are referred to.
Patent GB-616774-A (GB)
Title: Improvements relating to agricultural machines
IPC: A01C3/06
Filed: 1946-09-18
Abstract: 616,774. Manure distributers. BAMFORD, C. J., and BAMFORD, H. V. Sept. 18, 1946. No. 27963. [Class 6 (i)] Rotary blades and tines, particularly on manuredistributers, are mounted on non-circular shafts, each blade being integral with a bracket fitting over part only of the periphery of the shaft, and being secured by transverse bolts 23. On each section of shaft successive blades are staggered in end-view.
Patent GB-1171196-A (GB)
Title: Production of Moulds
Inventor: HALSEY GORDON
IPC: B22C9/04
Filed: 1967-06-28
Abstract: 1,171,196. Extracting castings. MONSANTO CHEMICALS Ltd. 28 May, 1968 [28 June, 1967], No. 29784/67. Heading B3F. [Also in Divisions B5 and C3] A ceramic shell mould for use in metal casting and which may be removed easily from the cast metal is made by applying alternate slurry and stucco coatings to a disposable pattern until a shell of required thickness is obtained, removing the pattern, and firing the mould, the slurry being particulate refractory in a liquid binder, at least one of the stucco coatings containing a particulate solid which is inert to the binder and converted on firing to a material which is soluble in water or aqueous acid or alkali or convertible by reaction therewith into a soluble material, so that the mould may be more easily removed from a metal casting. The particulate solid may be a water-insoluble metal carbonate which decomposes on firing to an oxide, e.g. calcium or magnesium carbonate. It is preferably included in the stucco of one or more of the secondary investment layers but not the primary investment layer.
Patent GB-444266-A (GB)
Title: A device to enable the user to select any desired passage on a gramophone record, the position of such passage being previously marked on the device
IPC: G11B33/02
Filed: 1934-10-01
Abstract: 444,266. Indicating-devices for use with gramophones. RICHARDSON, C. W., 17, Paddock Road, Cricklewood, London. Oct. 1, 1934, No. 27987. [Class 40 (ii)] In order to enable the playing of a gramophone record to be started at any desired point, a slotted sheet C of cardboard or the like is placed over the record, a hole A in the sheet fitting over the turntable spindle. The slot B, along which the needle moves, is provided with markings which indicate the location of particular parts of the record. Specification 314,636, [Class 40 (ii)], is referred to.
Patent GB-151949-A (GB)
Title: Improvements in or relating to anchors
IPC: B63B21/24
Filed: 1920-10-02
Abstract: 151,949. Baldt Anchor Co., (Assignees of Powell, N. D.). Oct. 4, 1919, [Convention date]. Anchors.-The shank s, preferably of forged metal and of elongated cross-section, is provided with lateral depressions d and takes into the corresponding slot in the head b of cast steel where it is permanently secured by forging, hammering or pressing the sides of the head adjacent to the slot into engagement with the depressions d.
Patent GB-654910-A (GB)
Title: Improvements in or relating to elevating mechanism
IPC: F16M11/10
Filed: 1948-10-28
Abstract: 654,910. Load handling machines. KODAK, Ltd. Oct. 28, 1948, No. 28063. Convention date, Nov. 5, 1947. [Class 78 (iii)] [Also in Group XX] An elevating mechanism comprises a pair of concentric overlapping arcuate leg members in a vertical plane, each including an arcuate slot and a foot at its outer extremity, a supporting member adapted to be connected to the apparatus to be elevated and carrying a pin which projects through both arcuate slots, means for moving the leg members lengthwise relatively to the pin in opposite directions to vary the height of the supporting member above the feet and means for guiding the leg members during such movement to keep them concentric. In the form shown an angle plate member has a base portion 14 from the rear of which extends upwards a wall 13 from which portions 28 are bent forward to form bearings for a shaft, with oppositely threaded portions 31, 32, carrying an operating knob 39. The front of the base portion 14 is bent downwardly as ears 43 and upwardly as a lug 17. The ears 43 carry a plate 45, cranked forwardly at 47, from which lugs 54 are bent backwards. These lugs and cranked portions guide overlapping arcuate leg members 22, 23 having feet 25 and slots 20, 21 through which passes a bolt with head 24, secured in the lug 17. The leg members have upwardly projecting portions 37 slotted at 36 to engage pins 35 projecting forwardly from nuts 33 on the threaded shaft. Rotation of the knob 39 moves the arcuate leg members lengthwise to vary the height from the feet 25, of the portions 15 of the angle plate member on which is mounted the apparatus to be adjusted.
Patent GB-1063126-A (GB)
Title: Improvements relating to vertical process cameras
IPC: G03B17/17
Filed: 1964-07-08
Abstract: 1,063,126. Vertical process cameras. K. SCHUMACHER and E. SCHUMACHER, [trading as KLIMSCH & CO. ]. July 8, 1964 [July 12, 1963], No. 28229/64. Heading G2A. A vertical process camera 1 has a horizontal guideway 5 above the lens 4, the guideway being formed by a pair of steel rails. Along this runs a carriage 6, on which is mounted a system of mirrors 13, 14 which can rotate about a pin 11. Mirror 13 has a single reflecting surface, and mirror 14 a double reflecting surface, so that either right-reading or laterally reversed images may be obtained as required. As shown in Fig. 1, mirror 13 is in operative position. A flash source 10 is arranged on a lever and linkage system 7, 8, 9, so that as the carriage 6 is drawn to a non-operative position at the end of guideway 5 Fig. 2 (not shown), the light source swings into an operative position in front of the lens. This is for use in connection with a screening process using a half-tone screen. The mirrors may be removed and replaced by a copy holder for transparencies, or alternatively the whole carriage 6 can be removed and replaced by a further carriage 15, Fig. 4 (not shown). On this is mounted a transparency holder (18), behind which is mounted an illuminating system of lamps (29). The carriage (15) can be moved along the guideway (5) by means of a friction wheel (22) driven by a worm-and-pinion gear (23, 24).
Patent GB-1474354-A (GB)
Title: Ceramic articles and method for making same
IPC: C04B35/632
Filed: 1975-07-04
Abstract: 1474354 Porous shaped articles INTERPACE CORP 4 July 1975 [29 July 1974] 28361/75 Headings C1J and C1M A fired, porous, shaped article having a uniform open porosity of at least 20% by volume, an average pore size of 1 to 10 microns, and a modulus of rupture of at least 4000 p.s.i., the fired article comprising 30 to 90 parts by weight of refractory abrasive particles and 70 to 10 parts by weight of glass particles for every 100 weight parts in total of refractory abrasive particles and glass particles, the refractory particles being bonded by solid sintering with the glass particles, may be prepared by forming a homogeneous mixture of (a) from 30 to 90 parts by weight of refractory abrasive particles and 70 to 10 parts by weight of glass particles for every 100 weight parts on total of refractory abrasive particles and glass particles, with (b) an organic binding agent and a liquid to give sufficient strength to form an article of desired shape; forming an article of the desired shape; drying the article to remove substantially all the liquid therefrom; firing the resulting dried article by raising the temperature at a rate such that substantially the entire article is at a uniform temperature throughout and until the article reaches a temperature at which the organic binder burns out; holding the article at this temperature until the organic binder is substantially removed; raising the temperature of the article further to a level below the fusion range of the glass and holding the article at this temperature, the temperature and holding time being such that a bond is formed by solid sintering of the particles and the resulting article has a modulus of rupture of at least 4000 p.s.i.; the particle size being 20 chosen and the method so operated that the fired, porous, shaped article produced has a uniform open porosity of at least 20% by volume and an average pore size of 1 to 10 microns. Suitable refractory particles are alumina and suitable glass particles are alumino-brass-silicate glass. The glass may contain secondary crystals, e.g. alumino-silicate crystals grown in situ during sintering. The articles may be in the form of mould members.
Patent GB-822049-A (GB)
Title: A combined heating and stirring device
IPC: B01F7/00
Filed: 1956-09-18
Abstract: 822,049. Heating liquids in bulk. PRUNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Sept. 18, 1956 [Sept. 24, 1955], No. 28451/56. Class 64(3) [Also in Group II] A combined heating and mixing device consists of two semi-cylindrical hollow stirers 2, 2<SP>1</SP> eccentrically mounted on a hollow rotary shaft 3 in a container 1, a heating medium being passed through the inlet of the hollow shaft to the tubular arms 9, 9<SP>1</SP> through the hollow stirers, where heat exchange takes place between the heating medium and the liquid in the container, to tubular arms 10, 10<SP>1</SP> leading to a central bore at the lower end of the shaft and to an outlet 8 in the bottom of the container. Rotation of the stirers 2, 2<SP>1</SP> and shaft 3 on bearings 4 is effected by a worm wheel 5 driven by a worm 6.
Patent GB-652143-A (GB)
Title: Improvements in and relating to piston rings
IPC: F16J9/20
Filed: 1948-11-03
Abstract: 652,143. Piston packing. SPECIALLOID, Ltd., and ROBINSON, A. S. Nov. 3, 1948, No. 28567. [Class 122(i)] In a scraper ring 1 of the slotted and flanged type each flange 3 is formed to provide initially throughout its periphery an area of contact with the cylinder wall which is substantially less than the full surface area of the periphery. The periphery of each flange 3 is bevelled at 5 or may be recessed or concavely or convexly curved. After a period of wear the full surface area of the flanges 3 contacts the cylinder wall.
Patent GB-266039-A (GB)
Title: Improvements in or relating to folding wardrobes, cupboards, bookcases, cabinets, and the like
IPC: A47B43/02
Filed: 1925-11-14
Abstract: 266,039. Jones, C. A. Nov. 14, 1926. Folding cabinets. wardrobes, bookcases, and the like receptacles, of the kind wherein the front carries a hinged top and bottom and the back carries the hinged sides, are provided with spacing blocks 15 between the sides and the back. Guide strips 9 are secured to the inner faces of the top and bottom to position the sides. When assembled, the parts are secured by screws 16. According to the Provisional Specification, the top or the top and the bottom may be hinged to the back. Specification 18350/05 is referred to.
Patent GB-1530738-A (GB)
Title: Fluid flow amplifier
IPC: F04F5/16
Filed: 1976-07-12
Abstract: 1530738 Fluid-flow amplifiers VORTEC CORP 12 July 1976 [21 Jan 1976] 28845/76 Heading F1E A fluid-flow amplifier comprises an annular nozzle 15 for injecting a thin film of pressurized fluid towards a deflector ring 20 having an outer surface 20a for deflecting the film axially towards a frusto-conical surface 12c and an inner surface 20b defining an opening 23 substantially larger than a throat opening 18. Prferably the ring 20 is displaced from the nozzle 15 by a distance at least three times the axial dimension of the nozzle and the axial dimension of the nozzle may be altered by changing the thickness of a non-compressible gasket 14. The frusto-conical surface has an included angle of from 10-70 degrees. The inner and outer surfaces 20a, 20b of the ring may be frusto-conical or cylindrical.
Patent GB-890051-A (GB)
Title: Machines for automatically feeding and running studs
Inventor: HUDMAN JOHN
IPC: B23Q7/10
Filed: 1959-08-25
Abstract: 890,051. Screwing up and unscrewing studs. AUSTIN MOTOR CO. Ltd. Sept. 26, 1960 [Aug. 25, 1959], No. 28976/59. Class 83 (3). A machine for feeding and screwing up studs comprises a hopper 2, carrying studs 1 which are fed to a screwing up spindle 3 carried by a slide, and rotated by a reversible air motor, and an axially movable guide bush 23 carried by a pivoting arm 14 being aligned with spindle 3, and the tapped hole for the stud. The hopper has an upper portion 2B, and a lower portion 2A pivotable on pins 6 by an air cylinder 8, and the pivoting movement is limited by adjustable stops 9. Spindle 3 is axially slidable in a bore 4 of a block 5, and the guide bush arm 14 is dowelled in a slot 16 of a spring-urged spindle 15 slidable in a bore in a block 5, a cam slot in the spindle co-operating with a pin 19 so that on axial movement of the spindle, arm 14 is pivoted. In operation, portion 2A of the hopper is tilted and a stud passes through an aperture 11 in the hopper into bore 4, and portion 2A is retracted. The stud is pushed forward by spindle 3 until it engages arm 14, and spindle 15 is moved a further distance axially until pin 19 co-operating with slots 18 rotates arm 14 to align bush 23 with the stud. The stud is frictionally held in bush 23 by a spring-urged plunger 24 until the stud is screwed into a bore in the rotating spindle 3 and engages a hardened steel plug in the bore and the stud is screwed into the stud receiving hole (not shown).
Patent GB-1130114-A (GB)
Title: Electrode-holder
IPC: B23K9/28
Filed: 1967-06-23
Abstract: 1,130,114. Arc welding electrode-holders. J. H. HANEKAMP, and H. J. HANEKAMP. 23 June, 1967 [24 June, 1966], No. 29015/67. Heading H5H. An electrode holder has a grip 1 and two clamping jaws 3, 5, with a grooved element 10 rotatable with respect to jaw 3 so that an electrode can be clamped in groove 11 in different positions within an angle of 180 degrees. Element 10 has a conical surface (12) resting in recess 9 of jaw 3 and a bolt 14 holds the element 10 thereto. Alternatively a grooved element (18) is rotatable on a flat portion of a clamping jaw (3) and is held thereto by a pin (19), the element (18) having semicircular recesses (20) over part of its circumference in which a lip (16) of clamping jaw (5) engages to prevent rotation during changing of an electrode (Figs. 5, 6, not shown).
Patent GB-261757-A (GB)
Title: Manufacture of condensation products and vat-dyestuffs of the benzanthrone series
IPC: C10G11/04
Filed: 1926-11-17
Abstract: 261,757. I.G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister Lucius & Bruning). Nov. 17, 1925, [Convention date]. Addition to 249,891. Samples furnished. Alkyl- and aryl-oxy-, and alkyl- and aryl-thiobenzanthronyl-mercaptans, -sulphides, and -disulphides; dibenzanthrone dyes.-Halogen substitution products of benzanthronyl-mercaptans. -sulphides, and di-sulphides or their derivatives are condensed with a phenol or a mercaptan. The condensation products thus obtained yield vat dyestuffs when treated with alkaline condensing agents. According to examples :-(1) dibrom- Bz1 :Bz1<1>-dibenzanthronyl sulphide (obtainable by fusing with sodium sulphide the Bz1-brembenzanthrone obtained by brominating benzanthrone as described in Example 3 of Specification 20837/06) is condensed with phenol in presence of potassium carbonate and the product subjected to ethyl-alcoholic potash fusion; the resulting dyestuff dyes cotton from the vat in bluish-violet shades : (2) by using #-naphthol instead of phenol a diraphthoxyldibenzanthronyl sulphide is obtained which on alkali fusion yields dinaphthoxyisodibenzanthrone which also dyes cotton in bluish-violet shades; (3) the condensation product from dibromdibenzanthronylsulphide and p-thiocresol is fused with ethyl-alcoholic potash; the product dyes cotton in reddish-blue shades. The ethyl alcohol may be replaced by other alcohols. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the manufacture of condensation products by condensing a halogen substitution product of a benzanthronyl mercaptan, sulphide or disulphide with an alcohol; also the manufacture of vat dyestuffs by treating such condensation products with alkaline condensing agents. This subject-matter does not appear in the Specification as accepted.
Patent GB-965370-A (GB)
Title: Improvements in temperature responsive elements
Inventor: MURDOCH ARCHIBALD CONWAY
IPC: G01K5/36
Filed: 1962-07-30
Abstract: 965,370. Thermostats. BRITISH THERMOSTAT CO. Ltd. July 18,1963 [July 20,1962],No. 29166/62. Heading G1D. A temperature responsive element contains a charge comprising an adsorbent of natural or synthetic zeolites and a gas of a molecular size that can be adsorbed and desorbed by the adsorbent under the influence of temperature change e.g. carbon dioxide. The element comprises a flexible capsule or bellows communicating through a capillary tube with a bulb which.contains the absorbent and is subjected to the temperature to be sensed, the assembly being hermetically sealed.