baber/WOPTO huggingface dataset:
Patent GB-444801-A (GB)
Title: Steam traps
IPC: F16T1/26
Filed: 1935-10-23
Abstract: 444,801. Steam traps. WALTER, P., 10, Boulevard de la Victoire, Strasbourg, France. Oct. 23, 1935, No. 29297. Convention date, Oct. 26, 1934. [Class 64 (ii)] In a trap of the bucket type, to prevent entry of air to the pipe system, the condensate is discharged through the bucket-operated valve 13 into an intermediate chamber 12 from which it passes to the outlet 3 through a non- return valve 14. Air separated in the trap collects in a chamber 6 and escapes through an automatic or hand-operated valve 7. When the bucket falls, a needle valve 17 opens to allow steam pressure to lift a piston 15 contacting with the bottom of the sliding discharge valve 13. The piston rises until the opening of the top of a passage 16 allows the steam to enter the chamber 12.
Patent GB-1479138-A (GB)
Title: Waste material filtration apparatus
IPC: B01D35/28
Filed: 1974-06-25
Abstract: 1479138 Filter screen BIOCONCEPT Ltd 25 June 1974 [20 June 1973] 29304/73 Heading B1D Material such as sewage sludge is moved up an inclined (or vertical) filter screen 1 by a plurality of brushes or scrapers 14 spaced along a frame 12, 15 which is reciprocated by motor 10 and so mounted as to engage the screen during the upward stroke while being spaced from the screen during the downward stroke. In Fig. 5 two further motors 34 (only one shown) cause arms 29 to pivot about points 31 to lift the frame clear of the screen (Fig. 6, not shown). Motor 10 is mounted at 10a on a carriage 9, pivoted to arms 8 and slidable in side channels 12 of the frame. The motors may be pneumatic/hydraulic rams or electrically rotated screws. Motors 34 are controlled by limit switches as the frame 11, 12 approaches its end positions. Screen 1 may be a perforate plate or comprises parallel bars extending along or across the screen length. To prevent material rolling down it, the screen may have transverse ridges or lines of pins (Figs 7a to 7c, not shown) coinciding with the end positions of each brush. In Figs. 1 to 4 not shown only one motor 10 is provided, the frame being lifted and held in the raised position and subsequently released by cooperating cams, cam followers and latches.
Patent GB-1509843-A (GB)
Title: Sealant composition
IPC: C08L23/18
Filed: 1976-07-14
Abstract: 1509843 Self sealing tyres ROCKET RESEARCH CORP 14 July 1976 [14 July 1975] 29311/76 Heading B7C [Also in Division C3] Self-sealing tyres comprise as sealant compositions comprising a carbon reinforced partially cross-linked matrix of high and low molecular weight butyl rubbers in weight ratio 20/ 80 to 60/40, in admixture with 55-70% by weight of the composition of a tackifier. The composition may also comprise a partially hydrogenated styrene/butadiene block copolymer, and may be applied to at least the tread portion of vehicle tyres either within the air impermeable liner or between the liner and the inner wall of the tyre, or to bicycle tyres on the inside wall of the tread portion between said portion and the inner tube.
Patent GB-192755-A (GB)
Title: Improvements in or relating to electrically controlled locks
IPC: E05B47/04
Filed: 1921-11-04
Abstract: 192,755. Knorr, W. E. Nov. 4, 1921. Ele,ctrically operated or controlled fastenings.- Relates to locks of the kind in which the bolt A acted on by a spring C, is actuated by a rotatable disc D controlled by the armature H of an electromagnet I in conjunction with a spring G. According to the invention, the disc D is guided in a vertical slot cut in a metal block E, and a tongue F on the armature H is guided in an horizontal slot in the same block to engage a notch in the disc D.
Patent GB-519265-A (GB)
Title: An improved gas mask container
IPC: B65D85/00
Filed: 1938-10-11
Abstract: 519,265. Boxes for gas masks. HOLBROOK, K. R., and JENNYN, H. Oct. 11, 1938, No. 29373. [Class 18] A container for a gas mask adapted to facilitate withdrawal of the mask has a spring- hinged lid 2 carrying a hook &c. 16 on which the straps of the mask are hung so that when a release 11, 12 is actuated the straps are presented to the user. A locating member 18 and felt &c. pad 19 secure the snout of the mask. A packing 13 and holder for an identification card are also provided. The container may be of metal, moulded plastic material, impregnated cardboard, waterproof textile on a rigid frame or other material.
Patent GB-766283-A (GB)
Title: Improvements in or relating to the production of synthetic filaments of fibers from dextron ether compositions
IPC: D01D5/04
Filed: 1954-10-12
Abstract: Artificial filaments are made by dry-spinning a solution containing a water-insoluble ether of dextran and nitrocellulose (blended in a ratio of at least 4 : 1 by weight) in a volatile organic solvent capable of dissolving both.  The dextran may be produced by the action of a bacterium such as Leuconostoc mesenteroides or L. dextranicum, or of the enzyme of the bacterium, on sucrose.  The dextran ether may be a water-insoluble ethyl ether obtained by the ethylation of dextran with an ethylating agent such as ethyl chloride, as described in U.S.A. Specification 2,344,179.  The preferred nitrocellulose is of the low viscosity type soluble in "Cellosolve" (Registered Trade Mark), ethyl acetate, butyl acetate and cyclohexanol acetate and containing 10-12.5 per cent of nitrogen. The composition may also contain nitrocellulose plasticizers such as castor oil, camphor, diethyl or diamyl phthalate or butyl stearate. Nonsolvent diluents such as toluene, benzene and the petroleum naphthas may also be present.  In an example a spinning solution containing 60 per cent by weight of a water-insoluble benzyl ether of dextran containing about 1.5 benzyl groups per anhydro-glucose unit of the dextran, 15 per cent of low-viscosity nitrocellulose and 25 per cent of "Cellosolve" is extruded through a spinneret into a spinning cell through which a current of air at 150-200 DEG  C. is passed concurrently with the extruded filaments, the dry filaments emerging from the bottom of the cell being wound on a rotating drum. In another example filaments are similarly dry-spun from a mixture of 73.3 per cent ethyl dextran containing about 2 ethyl groups per anhydro-glycose unit of the dextran, 8.3 per cent of low-viscosity nitrocellulose, 1.7 per cent of castor oil and 16.7 per cent of "Cellosolve."
Patent GB-1263535-A (GB)
Title: Data processing machine
IPC: G06F9/38
Filed: 1969-06-11
Abstract: 1,263,535. Computers; shift registers. INTERNATIONAL BUSINESS MACHINES CORP. 11 June, 1969 [26 June, 1968], No. 29489/69. Headings G4A and G4C. A data processing machine has means to detect a SKIP instruction, the instruction selecting a conditioning signal which indicates if skipping is to follow that instruction and if it is to skip subsequent instructions which are coded to indicate that they may be skipped until an instruction is reached which is coded to indicate that it may not. Up to four instructions at a time are entered into respective ones of the top four rows of a 7-row shift-down buffer in order to keep it filled, each being predecoded on the way to set or reset a skip bit in the row according as it is or is not a SKIP instruction. A no-op bit in the row is also reset. The skip bit and no-op bit are present in the row in addition to the instruction which itself contains a skip flag (bit). The instructions are shifted down to the bottom row from where they are decoded and executed. When executed, a SKIP instruction selects two bits of a machine condition register and a logic function to be applied to them, a SKIP flip-flop being set or reset according to whether the result is true or false. While the SKIP flip-flop is set, instructions having their skip flags set are skipped by setting the associated no-op bits while in the second to fourth rows from the bottom of the buffer under control of the skip flags in these rows and the skip bits in the bottom three rows or by inhibiting the main instruction decoder from the skip flag in the bottom row. Setting of no-op bits causes skipping by causing shift down by more than one row at a time to over-write the instructions to be skipped, the number of instructions skipped determining the number of new instructions to be inserted together into the upper rows of the buffer.
Patent GB-1267569-A (GB)
Title: Process for the preparation of manufactured articles
IPC: B32B25/10
Filed: 1969-06-11
Abstract: 1,267,569. Coated articles. GULF RESEARCH & DEVELOPMENT CO. 11 June, 1969 [28 June, 1968], No. 29494/69. Heading B2E. [Also in Divisions B4, B5, C3 and D1] A process for the preparation of a manufactured article comprises contacting a substrate with an aqueous dispersion of a waterinsoluble, self-emulsifiable ethylene copolymer containing pendent ammonium salt groups and being substantially free from alkali-metal salt groups, and maintaining the resultant coated substrate at an elevated temperature until said pendent ammonium salt groups are converted to carboxylic acid groups. Specified substrates, which may be fibrous or non-fibrous are cellulosic materials e.g. paper, wood, regenerated cellulose, cellulose esters or cellulose ethers; metals e.g. aluminium, steel, copper, brass or bronze; thermoplastic polyesters e.g. polyethylene terephthalate; thermoplastic polycarbonates; thermoplastic homo- and copolymers of formaldehyde; polyurethanes; thermoplastic polyamides; polyvinyl alcohol; thermoplastic addition polymers containing at least 25 mol% of a C 2  to C 4  monoolefin, a vinyl halide, a vinylidene halide, styrene, a substituted styrene or an ester of acrylic or an alpha-alkyl substituted acrylic acid and glass. The preferred copolymers are those containing 67 to 99 mol% of units (a) 33 to 1 mol% of either:- (1) units (b); (2) a mixture of units (b) and (c); (3) a mixture of units (b), (c) and (d); (4) a mixture of units (b), (c), (d) and (e); (5) a mixture of units (b) and (d); (6) a mixture of units (b) and (e); (7) a mixture of units (b), (c) and (e) or (8) a mixture of units (b), (d) and (e); alternatively, a mixture of the above specified copolymers may be used; units (a) having the structure -CH 2 -CH 2 -; units (b) having the structure units (c) having the structure units (d) having the structure and units (e) having the structure wherein R is hydrogen or a methyl group, R 1  is the ammonium ion, R 2  and R 3  are independently hydrogen, methyl, ethyl, propyl, butyl, hydroxyethyl, morpholine or a heterocyclic group containing up to 22 carbon atoms and R 4  is an allyl group or an alkyl group containing up to 22 carbon atoms. The examples describe the coating of glass fibres or glass cloth.
Patent GB-1385788-A (GB)
Title: Digital to analogue converter
IPC: H03M1/00
Filed: 1972-06-23
Abstract: 1385788 Digital to analogue converter TAKEDA RIKEN INDUSTRY CO Ltd 23 June 1972 [25 June 1971] 29500/72 Heading G4H In a digital to analogue converter, clock pulses are fed to two divider circuits, each dividing by the same number, the relative phase of the outputs being controlled by the digital input. The output pulses of the dividers set and reset respectively a bi-stable circuit and the output, pulse width modulated waveform is used to switch a reference voltage which, after filtering gives the analogue output. The digital input is applied to inputs 17a to 17n of AND gates 16a to 16n. Clock pulses of repetition period At are generated at 11 and are divided by n s  in dividers 12 and 14. The output of divider 12 resets bistable 15 and enables AND gates 16a to 16n. If the applied digital value is n x  (less than n s ), this is applied to frequency divider 14 which effectively counts from n x  up to n s  when an output pulse is produced which sets bi-stable 15. The two dividers thus operate out of phase by time n x .At and the output of bi-stable 15 is a pulse train of repetition period n s .At and "high output" period n x .At. This pulse train is applied to switch 18 and switches standard voltage e s  (19) giving a corresponding waveform which after averaging by filter circuit 20, is the analogue output (n x )/(n s ).e s .
Patent GB-723723-A (GB)
Title: Vehicle ramps
Inventor: MEATS WILLIAM HENRY
IPC: B60P1/43
Filed: 1952-11-22
Abstract: 723,723. Ramps on vehicles for loading. TELEHOIST, Ltd. Nov. 19, 1953 [Nov. 22, 1952], No. 29555/52. Class 78 (4). The end section of a ramp, Fig. 1, is folded and unfolded as the main part a moves by a jack h, which is moved in one direction by fluid displaced from the jack b, for moving the main section a, and which is controlled by a valve m which responds to the pressure in the jack b. The jack b is connected to swing a lever d connected by a link e to a bracket f on the ramp a while the jack h is pivoted to the main ramp a and swings an arm j rigid with the folding portion g. The end of the cylinder b adjacent its pivot on the vehicle is connected by the valve m and a conduit k to the jack h. When the ramp is to be lowered the supply pressure on the control valve m is released by a manually operable valve so that the spindle n of the valve m moves to the position shown in Fig. 3 to connect the cylinder b to the cylinder h so that the weight of the descending ramp forces liquid from cylinder b into cylinder h to unfold the portion g. When the unfolding is complete liquid is discharged to a relief pipe r through a relief valve p. When pressure liquid is connected to the jack b the spindle n is moved to the position shown in Fig. 2 to connect the cylinder h directly to the relief conduit r. Two or more jacks may be associated with each part of the ramp.
Patent GB-909060-A (GB)
Title: Improved digging tool
IPC: A01C5/02
Filed: 1961-08-16
Abstract: 909,060. Digging tools. SMITH, C. J. P. Aug, 16, 1961 [Aug. 18, 1960], No. 29622/61. Class 6(2). A digging tool comprises ground penetrating members 11 each welded or otherwise secured to a shank 12 having a socket to receive a wooden or tubular steel handle 14, the shanks 12 being pivotally connected together and the socket part being preferably at least one-third the total length of the handle. The, upper part of the members 11 may be shaped to form a step or a step 15 may be fixed to each member 11. The pivot pin connecting the shanks 12 may be removed so that the two parts of the tool may be used individually in a manner similar to that of a crowbar.
Patent GB-645605-A (GB)
Title: Improvements relating to pipe couplings
IPC: F16L37/12
Filed: 1948-11-15
Abstract: 645,605. Pipe couplings. M. L. AVIATION CO., Ltd., and LOBELLE, M. J. O. Nov. 15, 1948, No. 29655. [Class 99(i)] Pipes 8, 9, one of which may be fixed, are aligned by flanges 12, 16 which are held together by clip portions such as jaws 25, 27, of two or more levers 19 pivoted on one of the pipes and interconnected, as by toggle links 31, with a single operating- element, such as a slide-bar 37, which is arranged to turn all the levers simultaneously about their pivots such that the clip portions disengage from the flanges and knifeedges 24 of the levers enter between and separate the flanges. The slide-bar may be connected to a centre pin 33 of the links and retained in a slotted pillar 35, radial extensions 21 of the flange of the fixed pipe may carry the lever pivot pins 20 and jaw 27 may be pivotally adjusted by a set-screw 29. For pipes of large diameter additional levers and links may be provided
Patent GB-1001286-A (GB)
Title: Process for the sulphonation of fatty acids or their esters
IPC: C07C309/17
Filed: 1962-08-02
Abstract: In the sulphonation of essentially saturated fatty acids of 6-28 C atoms per molecule, or their esters, by the addition of 1.1 to 1.8 mols of sulphur trioxide per mol of fatty acid residue, in the absence of solvents which form adducts with sulphur trioxide, 65 to 90% of the total sulphur trioxide is added at a temperature of not above 70 DEG  C. and the remainder at above 70 DEG  C. No sulphatable or sulphonatable groups should be present in the fatty acids to allow of sulphonation ether than at the a -hydrogen atom.  The trioxide is preferably added continuously at steadily increasing temperatures the first portion at 30 DEG  to 70 DEG  C., preferably 40 DEG  to 65 DEG C., and the residue at 75 DEG  to 95 DEG  C., preferably 80 DEG  to 90 DEG  C.  The fatty acids preferably have 8-18 C atoms per molecule and an iodine value of below 5, especially below 2.  Preferred fatty acids are those derived from plants and animals, e.g. lauric acid, hydrogenated vegetable fats, hydrogenated tallow, whale and fish oils.  Their esters may be derived from mono- or polyhydric alcohols, e.g. hydrogenation products of oleyl oleate occurring in sperm oil or natural or synthetic wax esters.  Preferably 1.2 to 1.6 moles of trioxide are used per mol of fatty acid residue.  The sulphur trioxide is used in the presence of inert gases, e.g. air, N2 and CO2, the gas mixture containing 2-40%, preferably 3-20% by volume, of sulphur trioxide. The addition of the trioxide, and the variation in temperature, are adjusted so that the trioxide reacts as completely as possible.  The first stage should take 2/3 to 3/4 of the total reaction time and the second stage not less than 5, preferably 10-15 minutes.  The products are bleached preferably as in Specification 1,001,283.  The fatty acid products, before or after bleaching, may be esterified with alcohols of 1-6 C atoms, especially monohydric alcohols. Examples are provided in which methyl laurate (made from hardened coconut oil) an ethyl ester derived from hardened coconut oil, an ethyl ester of a hardened and distilled tallow fatty acid, a sec-butyl ester of hardened coconut fatty acid, a mixture of an ethyl ester of a hardened palm kernel fatty acid and hardened palm kernel fatty acid, a mixture of hardened coconut fatty acid ethyl ester and the free acid, hardened palm kernel fatty acid ethyl ester, and hydrogenated palm kernel fatty acid, are sulphonated.
Patent GB-520237-A (GB)
Title: Improvements in or relating to pistons for fluid pressure systems
IPC: F16D65/22
Filed: 1938-10-14
Abstract: 520,237. Pistons. BENDIX, Ltd., and ROBERTS, G. P. Oct. 14, 1938, No. 29762. [Class 122 (i)] A piston for use in a fluid pressure cylinder such as the master or brake cylinder in an hydraulic braking system is constructed of an annular sealing member e of rubber or other flexible material housed in an annular groove c in the piston a which is connected by grooves d with the pressure side of the piston. The ring e is of hollow cross section and the thickness of the ring is a minimum at the line of contact with the cylinder, the upper surface of the ring being of convex form. A metal ring g may be provided to keep the centre of the ring in contact with the cylinder wall. In a modification, the ring is solid of circular cross-section, and the fluid pressure keeps the ring in contact with the sides of the grove c and the cylinder wall.
Patent GB-283540-A (GB)
Title: Gas discharge tubes intended for high voltages and provided with an incandescent cathode and a plurality of anodes
IPC: H01J17/04
Filed: 1927-11-07
Abstract: 283,540. Accumulatoren-Fabrik Akt.- Ges. Jan. 13, 1927, [Convention date]. Vacuum tubes. - In a gas discharge tube for high voltages having an incandescent cathode c and two or more anodes, each anode d is enclosed in an insulating or insulated receptacle attached to a common stem and consisting of a long narrow tube, or of a tube with a wide portion e and a long narrow neck f. The tubes may be formed with double walls, and a metal coating in each enclosure may be connected with the corresponding anode and through a resistance with a separate source of potential to facilitate starting; or the coatings may be connected permanently with the anodes in tubes operating at low voltages.
Patent GB-136536-A (GB)
Title: Double-acting Saw-filing Machine.
Inventor: NIELSEN VILLADS
IPC: B23D63/10
Filed: 1919-12-01
Abstract: 136,536. Nielsen, V. Dec. 4,1918, [Convention date]. Saws, sharpening.-Saw teeth are filed on both front and rear faces by a file reciprocating in different planes and at different inclinations on alternate strokes. The saw blade is steadied by a holder 14, Figs. 1 and 3, with an adjustable abutment 15, and is indexed by a cam-operated pawl 25 with a stroke adjustment 26. The file 1 is carried by a slide mounted on a slide-way 5 hinged at 6 to a frame pivotally connected to a rocking link 8. The height of the frame is controlled by stops 9, 11 engaging an abutment 10 and the end 12 of a cam-lever respectively. The cam shaft 31 rotates at half the speed of the crankdisk 21 that reciprocates the file, so that the frame is raised and lowered alternately between successive cutting strokes. Depth of cut is controlled at 28, and a cam on the crank-disk relieves the file during the return strokes. Figs. 4 and 5 show the two file positions, the change of inclination being controlled by the arm 29 that rests continually on the bed.
Patent GB-1269504-A (GB)
Title: Bromine-containing amidophosphate product having flame-proofing properties
IPC: D01F2/10
Filed: 1968-06-24
Abstract: 1,269,504. Regenerated cellulose filaments. COURTAULDS Ltd. 23 June, 1969 [24 June, 1968], No. 29935/68. Heading B5B. [Also in Divisions C2 and C3] Regenerated cellulose filaments are flameproofed by incorporating therein a liquid flameretardant amido phosphate obtained by contacting liquid (2,3-dibromopropyl) phosphate with anhydrous ammonia gas in specified manner. The flame-retardant may be incorporated in a viscose solution prior to spinning and the viscose then extruded through a spinnerette into a sulphuric acid bath containing H 2 SO 4 , ZnSO 4  and Na 2 SO 4  to form flame-proofed filaments.
Patent GB-778672-A (GB)
Title: Improvements in and relating to the cooling of bodies subject to a hot gas stream, for example turbine blades
Inventor: COLE ERNEST JOHN
IPC: F01D5/18
Filed: 1954-10-18
Abstract: 778,672. Turbine blades. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Aug. 11, 1955 [Oct. 18, 1954], No. 29956/54. Class 110 (3). A turbine blade (or other member) subject to exposure to a hot gas stream is provided with means including an external covering of porous material for cooling it by effusion, and also means including separate internal cooling passages for cooling it internally. The blade shown in Fig. 1 comprises a spine member a which is formed with the leading and trailing edges band c of the blade, coolant passages d and e being provided in the edge portions. The surfaces of the blade between the leading and trailing edges are provided by sheets of porous material f which afford with the spine member a, channels g through which cooling medium such as air is supplied. The spine member may be formed by extrusion and the porous material sheets may be secured thereto by sintering or electric welding. The air supplied to the channels g may be metered by means of orifices n, and the thickness or permeability of the porous material may be varied. In the blade shown in Fig. 5 cooling air passed upwardly through the passages d and e is caused to flow through openings i, h and j, k into the channels g by means of the shroud m.