baber/WOPTO huggingface dataset:
Patent GB-1103772-A (GB)
Title: Phosphates
Inventor: ROHLFS HANS ADOLF
IPC: C01B25/45
Filed: 1965-02-15
Abstract: Acyclic chain condensed ammonium phosphates or ammonium metal phosphates are made in a process wherein (I) at least one ammonium orthophosphate and/or (II) at least one metal phosphate containing at least one acid hydrogen atom or (III) a mixture of (I) and/or (II) with phsophoric acid in an amount such that there are at most 4 P atoms for every NH4 group or metal equivalent present is reacted with at least one carbon-nitrogen compound, or an adduct thereof with phosphoric acid, at a temperature of 110-450 DEG  C.  In the starting mixture the N:P ratio is not greater than 5:1. Preferably in this mixture there is at least 0.3 gm. atom of nitrogen for every mole of water evolved.  In the final product the N:P ratio is not lower than 0.5:1 if ammonium polyphosphates are produced, and if ammonium metal polyphosphates are produced the N:P ratio is not lower than 0.3:1 and the ratio of nitrogen atoms metal equivalents to P atoms is at least 0.5:1.  The carbon-nitrogen compound releases ammonia on heating or hydrolysis and may have the general formula <FORM:1103772/C1/1> or <FORM:1103772/C1/2> wherein X represents O, S, or NH.  R1 represents H, alkyl, alkoxy or acid amide having up to 3 carbon atoms or an NH2, NHNH2 or an HN.CX.R6 group wherein R6 represents any R1 group except the last or X and R1 or X and R6 together represent (­N); R2 represents an NH2, SNH4 or ONH4 group; and R3, R4 and R5 are the same or different and each represent one of the groups OH or NH2. Specified carbon-nitrogen compounds are formamide, oxamide or acetamide, biuret, semicarbazide, dicyandiamide, urea, urea - phosphoric acid addition product, thiourea, guanidine, ethylurethane, cyanuric acid, melamine, ammeline, ammelide and cyanamide.  The metal may be K, Na, Ca, Mg, Sr, Ba, Al, Fe, Cu, Mn, Co, Ni, Cr, Zn, Sn, Pb or Hg.  Water or ammonia may be added to the mixture.  The reaction may be conducted at ordinary, elevated or reduced pressures, and may be in an inert solvent.  Polyphosphates having an average degree of condensation between 2 and 1000 may be produced and they can be amorphous or crystalline.  A 1% aqueous sol. has a pH in the range 2 to 9.  A modification of the process is to react the carbon-nitrogen compound (other than urea or a urea phosphoric acid adduct) with H3PO4 or a mixture of H3PO4 and (B1) an NH4 orthophosphate (B2) urea, (B3) a urea phosphoric acid addition product, or (B4) a mixture of (B1), (B2) or (B3).
Patent GB-1321783-A (GB)
Title: Illumination and light receiving device
IPC: G01N21/47
Filed: 1972-02-11
Abstract: 1321783 Monitoring reflectance MILES LABORATORIES Inc 11 Feb 1972 [11 March 1971] 6527/72 Heading G1A [Also in Division G2] An apparatus for illuminating a surface 54 and for monitoring the light reflected therefrom comprises a light source 38, a member 12 having a longitudinal passage 14, a light sensitive device, 50 and a plurality of optical fibres 34, the fibres generally surrounding and parallel to the member 12 and each having a bevelled end face so as to form collectively a flat annular surface 28 at which surface the optical axis of each fibre makes an angle of 45 degrees to the axis 19 of the passage 14. Reflected light is conveyed to the sensor 50 along further optical fibres 44. This latter group of fibres may be dispensed with, by locating the sensor in the passage 13.
Patent GB-176657-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B3/02
Filed: 1921-02-28
Abstract: 176,657. Somerset & Co., Ltd., T., and Mahood, V. Feb. 28, 1921. Sewing-machines; needles, vibrating laterally. -A cam 3, interposed between the knee-lift lever 23 and its operating-rod 2, is used to impose automatic variations of the needle upon the variations obtained by means of the knee-lever. The cam is slidingly mounted on a spindle 14 and rests upon a U-shaped plate 17, forming one arm of the knee-lever, so that it can transmit the movements of the knee-lever. To actuate the rod 2 independently, the cam 3 is rotated from worm gear 12, 13 by means of a rod 16 fixed to the wheel 13 and to an arm on the upper end of the shaft 14, and passing through a perforation in the cam. The worm 12 is driven through gear 9, 10, 5, and 19 and may be put out of action by shifting the shaft 5 axially to separate the gear-wheels 19.
Patent GB-267527-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1927-03-09
Abstract: 267,527. Electrolux, Ltd., (Assignees of Platen-Munters' Refrigerating System Aktiebolag). March 9, 1926, [Convention date]. Refrigerating, absorption machines and processes for.-In continuous-cycle systems operated solely by heat and wherein a pressure-equalizing inert gas is employed, the circulation of liquor between the absorber 18 and the generator 10 is effected by introducing into the liquor circuit a fluid medium separable at a lower temperature than the refrigerant, the generation of this medium serving to lift the liquid through a heated riser pipe 22. The apparatus comprises the usual refrigerant condenser 14, evaporator 16 and the heat-exchanger in the weak and strong liquor pipes 19, 21. The strong liquor pipe is formed into the coil 22 around an electric heating element 11 in a pocket 12 in the generator, and continues upwards to a separator vessel 23, from which a pipe 24 leads to the top of the generator and another pipe 26 leads back to the liquor pipe 21. The added medium circulates only or mainly in the circuit of the coil 22, the pipe 21, and separator 23. The liquor passes into the top of the generator while the separated gas flows down the pipe 26 and is condensed therein by means of an air-cooled member 27. Ammonia may be used as refrigerant, water as the solvent, hydrogen as the inert gas, and butane as the further medium. A water-cooled condenser is employed where a. medium such as propane is used instead of butane. In one modification, the gas may pass from the separator 23 to an auxiliary absorber arranged in the strong liquor pipe. In such case methylamine may be used as the refrigerant, water as solvent, and ammonia. as the added medium. In a further modification, the gas may be led direct from the separator 23 into the strong liquor pipe 21. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the added medium is introduced into the weak liquor passing from the generator to the absorber. The use of glycerine and potassium and sodium hydrate solutions as solvents is mentioned. This subject-matter does not appear in the Specification as accepted.
Patent GB-1280253-A (GB)
Title: Disc brake actuating cylinder
IPC: F16D65/18
Filed: 1970-02-11
Abstract: 1280253 Fluid pressure brake actuators ALFRED TEVES GmbH 11 Feb 1970 [17 Feb 1969 3 June 1969] 6626/70 Heading F2F In an actuating cylinder assembly for a disc brake the edge of the open end of the cylinder is protected by a flexible insert 5 made of a material such as a high quality heat resistant synthetic material, pressed into a part having a larger diameter than the inner part 4, the insert being retained in position by a collar 6 which snaps into a groove in the cylinder wall. In another embodiment, Fig. 2, the insert 17 is in the form of a split ring to snap into a groove 11 which also holds a sealing ring 10 the insert being of a material such as nickel or steel with a molybdenum-sprayed surface.
Patent GB-237525-A (GB)
Title: Improvements in railway signalling devices
IPC: B61L29/26
Filed: 1925-03-11
Abstract: 237,525. Pabst, M. March 11, 1925. Track apparatus actuating signals other than on trains.-A horn 11 is sounded by air or gas supplied from a container 15 through valves 10, 17 opened by a train passing a track contact lever 3 and closed by connections from a semaphore signal when that signal is set clear.
Patent GB-1524922-A (GB)
Title: Latch assembly
IPC: E05C17/50
Filed: 1977-02-17
Abstract: 1524922 Latches CATERPILLAR TRACTOR CO 17 Feb 1977 [19 July 1976] 06732/77 Heading E2A Latch 24 pivots about pins 26 held in sleeves 30 of bracket 28 and is biased outwards through slot 14, as far as upstanding portion 25 permits, by spring 20 acting through ball 22 on surface 32. Holes 17, 29, 36 in main plate 15, bracket 28 and retainer plate 34, accept screws to hold the assembly together and secure it to a supporting structure.
Patent GB-289222-A (GB)
Title: Improved collapsible hood or cover for vehicles
IPC: B60J7/06
Filed: 1927-03-11
Abstract: 289,222. Haldane, G., and Smeaton, J. March 11, 1927. Hoods for road vehicles. In hoods of the kind in which hoop sticks are arranged to run on cantrails by means of wires &c. operated from a winch &c., the wires &c. pass through apertures in the ends of the hoop-sticks and thereby keep them in contact with the rails. The hoopsticks are arranged to run on elevated side rails of U-section by means of wires operated by drums. The wires J, K are connected to the front hoop-stick D and pass through apertures in the remaining hoop-sticks &c. around the vehicle to drums M, N on which they are each wound to reverse direction. The drums are operated by a crank handle and the hoop-sticks are interconnected by tapes G, H. The rails are curved to the desired contour of the hood.
Patent GB-1512481-A (GB)
Title: Process for removal of proteinaceous matter from liquid effluents
IPC: C02F1/52
Filed: 1977-02-16
Abstract: 1512481 Purifying waste water SIMON-HARTLEY Ltd 16 Feb 1977 [21 Feb 1976] 06920/76 Heading C1C Proteinaceous material in aqueous wastes, from dairies, abattoirs or fish processing, is removed by treating the waste with a flocculant or coagulant, followed by an adsorbent and a polyectrolyte and finally separating the flocs formed by flotation.
Patent GB-546104-A (GB)
Title: Process and apparatus for reducing divided material such as ores containing solid oxides with reducing gas
IPC: C21B13/00
Filed: 1941-05-30
Abstract: 546,104. Reducing ores. MADARAS, J. D. May 30, 1941, No. 6953. [Classes 72 and 82 (i)] Ores containing oxides, for example iron ores or manganese ores, are reduced by passing reducing gas through the ore contained in a number of reducing chambers in series while pulsating the pressure of the gas in the material, the gas being heated between successive chambers. Gas from a heater 4, Fig. 1 may be admitted tc the first of a series of reducing chambers 1 through openings 8, pulsation being obtained by means of handoperated valves 5, 7 12 and a chamber 6; or gas from a chamber 13, Fig. 3, may be admitted to a reducing chamber 17, and pulsation obtained' automatically by means of valves 15, 22 operated by a cam 23. A number of similar reducing chambers with intermediate gas heaters may be supplied from a common gas pipe, pulsation being effected by any suitable means, and valves being arranged to shunt the gas around a chamber being emptied and charged.
Patent GB-1358143-A (GB)
Title: Collecting electrode of plate-type electrostatic precipitatior
IPC: B03C3/47
Filed: 1972-02-16
Abstract: 1358143 Electrostatic precipitators VSESOJUZNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI TEPLOTEKHNICHESKY NAUCHNO-ISSLEDOVATELSKY INSTITUT IMENI F E DZERZHINSKOGO 16 Feb 1972 7084/72 Heading B2J In an electrostatic precipitator the collecting electrodes 1 are arranged parallel to the gas flow a and are provided with perforated projections 2 forming barriers to the gas flow. The holes in the projections 2 may be round or rhomboid in shape and may be arranged in staggered relationship. The edges 4 of the projections may be tubular to reduce distortions in the electric field.
Patent GB-1461508-A (GB)
Title: Stance device for use by a golfer at practice
IPC: A63B69/36
Filed: 1974-02-19
Abstract: 1461508 Golf practice device C G VASEY 6 May 1975 [19 Feb 1974] 7468/74 Heading A6D A golf stance practice device comprises orthogonal members 11, 12 defining lines Y 1  Y (on which the ball is teed, Fig. 4, not shown) and X 1  X (the desired path for the ball), and a member 13 crossing member 11 at O 2 , the member 13 being pivotal about O 2  and point O 2  being movable along member 11. In use (Fig. 4), the golfer positions his feet adjacent particular graduations on member 13. A protractor 13A carried by member 13 co-operates with line 15A1 on member 11. Member 13 is releasably secured by a nut 14 to a bolt (not shown). The bolt is carried either by a plate (Fig. 1B) slidable in a T-section groove formed in member 11, or by a frame (Figs. 2 and 3) which slidably embraces member 11 and is located by a pin inserted through a selected one of a number of holes formed in member 11.
Patent GB-589755-A (GB)
Title: Improvements in apparatus for generating infra-red and ultra-violet rays
IPC: A61N5/08
Filed: 1945-03-24
Abstract: 589,755. Infra-red and ultra-violet ray generators. BARBER, A. A., GOODMAN, G. C:, and RICHARDSON, S. R. March 24, 1945, No. 7494. [Class 81 (ii)] Apparatus for generating infra-red and ultraviolet rays, wherein both generating units are .arranged within the same reflector, comprises a reflector 1, Fig. 1, in which the infra-red unit is in the form of a ring 4 co-axial with and at right angles to the axis of the reflector, and in which the ultra-violet unit comprises a mercury discharge unit 6 situated in front of the infra-red unit and curved and arranged substantially coaxial with, and in a plane at right angles to, the axis of the reflector, both units facing forwardly to give maximum direct emission through the mouth of the reflector. Ring 4, comprising a nickel-chrome wire on or embedded in its front face is attached to the flat back part 1a of stepped reflector 1 by phosphor-bronze clip 5, and the leads therefrom pass through insulated terminals 12. The electrode chambers 6a of the circular mercury unit 6 are held by phosphorbronze clips 7 attached to rod 8 fixed to the back of the reflector. Steel casing 2 is provided to protect the leads, and the whole apparatus may be mounted by a hinged joint 11, Fig 5, on a stand 10. The infra-red unit may operate at normal mains voltage and the ultra-violet unit at 350 volts through a transformer 9, and each unit is arranged to work independently of the other, if desired. The reflector surface may be nickel-plated and then gold-plated. A pilot lamp may be provided to indicate when the infra-red unit is in use, and this may be in the form of a divided ring of carbon graphite.
Patent GB-668979-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/14
Filed: 1950-03-27
Abstract: 668,979. Photographic shutters. KODAK, Ltd. March 27, 1950 [March 26. 1949], No. 7620/50. Class 98 (i). A setting type shutter comprising a pair of pivoted shutter blades 23, 24 controlling an aperture 3 in the shutter casing 1, a pivoted lever 27 carrying a stud 28 engaging the blades, as by slots, between the blade pivots 25, 26, an annular master member 7 surrounding the aperture 3 and having a setting-lever 22 by which it is rotated to tension its driving-spring 18, and a release trigger 5 latching the mastermember in the set position, is provided with cams 34, 35 on the master member and pivoted lever 27, respectively, which engage to open the shutter blades, a spring 31 tending to close the blades, and means comprising an arm 38 on said lever and a radial extension 40 on the master member, which are normally held out of engage - ment by the spring 31 but when engaged prevent movement of the lever 27 and so rebound of the blades. To assist the closing of the blades, the extension 40 is formed with a ramp 45 between the rebound-preventing face 39 and the face 41 which limits the inward travel of the arm 38 and hence the opening travel of the blades. On setting the shutter, the nose 32 of the lever 27, which is initially clockwise of the shoulder carrying the cam 34, passes beneath this shoulder as the under-face of an upwardlyextending master-member lug 43 is engaged by the nose 32 and so moves the master member upwardly against axially locating spring clips 16.
Patent GB-1420017-A (GB)
Title: Aminoplastic binder for wood-base materials
IPC: C08G12/12
Filed: 1973-02-16
Abstract: 1420017 Uron-containing urea-formaldehyde resins BADISCHE ANILIN- & SODAFABRIK AG 16 Feb 1973 [19 Feb 1972 7 Sept 1972] 7639/73 Heading C3R A urea-formaldehyde resin of F : U ratio 1 to 2À75 : 1 is obtained by (i) condensing urea and formaldehyde, or a precondensate thereof, of F : U ratio at least 3 : 1 in squeous solution at pH not above 3 until at least 1% of the urea present is in the form of uron groups, (ii) adding urea, still at pH not above 3 to an F : U ratio of 2À75 to 2 : 1, and optionally (iii) adding urea at pH 5-6À5 or 8-10 to an F : U ratio not less than 1 : 1, the condensation being continued until the solution is no longer dilutable with water in all proportions at room temperature, and the product, if desired, being concentrated or dried. The urea is preferably added continuously. In Examples 1-3 and 5-8, 470-552 p.b.w. of 68À3% aqueous urea is added over 4.5 to 79 minutes to 1000 p.b.w. of 40% formalin at 95‹ C., adjusted with H 2 SO 4  to pH 0À5-1; the pH is then adjusted with NaOH to 8À5-9 and 61-639 p.b.w. of the urea solution are added over 3-60 minutes (this stage is omitted in Example 6). In Examples 4 and 11-15, 1000 p.b.w. of a 60% solution of a precondensate of F : U ratio 4 : 1 is held at 95‹ C. for up to 33 minutes at pH 1À4-2À4, then 182-490 p.b.w. of the urea solution is added over 0-20 minutes (total time 6-53 minutes), the solution is neutralized with NaOH and a further 232-363 p.b.w. of the urea solution is added and the pH brought to 6À5. In all the examples the solution is neutralized with NaOH and concentrated to 65% solids: these solutions have F : U ratios of 1 to 2À15 : 1 and viscosities of 190-1272 cP./20‹ C. Uses.-Binders for chipboard, plywood, fibreboard.
Patent GB-943285-A (GB)
Title: Improvements in pulping appliances, in particular household mixers
IPC: A47J43/044
Filed: 1961-03-02
Abstract: 943,285. Food mixers. SOC. INDUSTRIELLE DE FERBLANTERIE. March 2, 1961 [March 4, 1960], No. 7691/61. Heading B1C. In a food mixing and comminuting appliance the spinner 6 depends into a removable basket sieve 3 which retains coarse residues ; the diameter of the sieve is preferably not more than twice that of the spinner.
Patent GB-708264-A (GB)
Title: Improvements in mixing machines
IPC: B01F7/16
Filed: 1951-04-03
Abstract: 708,264. Mixing appliances. GOWING, N. E., NORMAN, J. W. E., and NORCON,Ltd. March 24, 1952 [April 3, 1951], No. 7699/51. Class 86 A mixer comprises a trough 1 having parallel sides and arcuate ends, a spindle 11 carried by a support 14 capable of horizontal reciprocation on rods 16, a driving crank 8 and a connecting rod 17 between the crank pin 8a and spindle 11 for imparting horizontal reciprocation to the spindle. Pinions 18 and 19 are secured respectively to the crank pin 8a and spindle 11, and a chain drive 20 between the pinions 18 and 19 imparts rotation to the spindle 11 from the rotation of the crank 8 with a step up ratio of one to three. Blades 9a are supported from the spindle at a radial distance from the centre of rotation which is slightly less than the radius of curvature of the arcuate ends of the trough so that they sweep close to the side and end walls during their movement. The blades 9a do not extend to the top of the trough so that when the trough is filled the bottom material is swept forward resulting in a turning over of the material. The spindles may be swept forwardly to assist this action.
Patent GB-476476-A (GB)
Title: Improvements in and relating to driving mechanism, more particularly for cycles
IPC: F16D3/62
Filed: 1937-03-16
Abstract: 476,476. Cycle &c. driving-mechanism. ENDERSEN, L. C., and CAHILL, H. March 16, 1937, No. 7731. Convention date, June 20, 1936. [Class 136 (ii)] [Also in Group XXIV] In a spring-transmission device for the pedal - crank driving- mechanism of cycles, and applicable also to hand - driving - mechanism for invalid carriages &c., the hub portion of the cranks is concentrically connected to the chain wheel by means of one or more spring elements in the form of rings, coils, loops, &c., all lying in one plane and situated in circumferential grooves or slots in the hub portion and chain wheel respectively. A crank hub b is provided with a circumferential groove, and a toothed ring a with an internal circumferential groove, and a series of contiguous split spring rings c are mounted in these grooves. The groove in the toothed ring a is formed by two rings g secured on either side, one having a spring- abutment projection to co-operate with an abutment projection f on the hub b. Two or more sets of projections may be employed, so as to divide the springs into two or more sets, each set having one or more spring elements therein.
Patent GB-867917-A (GB)
Title: Improvements in joining metals or alloys
IPC: B23K35/30
Filed: 1957-03-08
Abstract: 867,917. Brazing; welding by pressure. MARSTON EXCELSIOR Ltd., SUMNER, K. G., and ROBERTS, G. B. March 5, 1958 [March 8, 1957], No. 7733/57. Class 83 (4). In brazing parts of steel or other ferrous alloys to parts of titanium or titanium base alloys, brazing metal or alloy which will not form brittle intermetallic compounds with the parts is placed between the parts and portions only of the brazing metal or alloy-are melted to join the parts. The brazing may be effected by a resistance spot or seam-welding machine or by an argon-shielded arc torch and the brazing metal or alloy may be in foil strip or powder form. In making a vessel with a mild steel wall and a titanium or titanium base alloy lining the titanium is degreased, e.g. in trichlorethylene and scratch brushed and the steel is degreased, e.g. in trichlorethylene and shot-blasted, an 80% copper, 20% nickel foil is interposed between the wall and lining and melting of the foil at discrete spots is effected by a spot-welding machine. For brazing titanium to mild steel, aluminium, aluminiumsilicon, copper, 70% copper, 30% nickel, nickel, silver and silver-tin brazing materials were used. The drilling of a steel vessel and the insertion of plugs of titanium to which a titanium lining can be spot-welded is disclosed.
Patent GB-471439-A (GB)
Title: Improvements in brakes for motor vehicles
IPC: F16D65/54
Filed: 1936-03-16
Abstract: 471,439. Brakes. BENCE, C. March 16, 1936, No. 7861. [Class 103 (i)] Four-wheel brake mechanism for motor vehicles comprises a pair of shafts 1, 1a, Fig. 1, in line with one another each carrying at the out end interconnected members 5, 6, connected to the brakes and capable of limited relative rocking movement. A lever 10 is supported between the ends of the shafts and is connected by balance bar 12 to levers 11, 11a on the shaft. The lever 12 is operated by a rack 17, Fig. 6, operated by the pedal 14 by means of a pawl 18, The levers 5, 6 are connected by a pin and slot or toothed quadrants. The rack brake operating means embodies an automatic adjusting device. On excessive movement of the brakes, a roller 22 moves up an inclined part of a slot 23 and engages a fresh tooth in the rack.
Patent GB-159765-A (GB)
Title: Improvements in or relating to steam boilers
IPC: F22D1/26
Filed: 1920-03-17
Abstract: 159,765. Addyman, W. P. March 17, 1920. Flues, external.-Feed-water heating tanks C in the side flues of a Cornish or like boiler have vertical parallel sides curved or flared outwards at the top c<1>, the outer surfaces of the tanks thus conforming to the surfaces of the walls which they replace.