baber/WOPTO huggingface dataset:
Patent GB-654158-A (GB)
Title: Process for the treatment of phosphate rock
IPC: C05B13/02
Filed: 1947-08-20
Abstract: In making fertilizers comprising phosphate rock and a slag-forming material, e.g. slag containing lime, magnesia, alumina, silica &c., the phosphate rock is pre-heated to 1000 DEG  C. and incorporated in the molten slag-forming material.  In one embodiment, crushed phosphate rock is pre-heated by being charged into a rotary furnace immediately following the discharge of a previous molten charge, molten slag at 1350 DEG  C. is then poured into the pre-heated phosphate and the mixture, e.g. of equal proportions of the ingredients, is heated to 1500 DEG  C.  The utilization of the heat of the combustion products for pre-heating the phosphate and the transference of the residual heat to recuperators for pre-heating the air required for combustion of the fuel for heating the furnace, may be effected by harnessing two rotary furnaces in tandem (see Group XII), and subjecting them to alternate reversal of firing; thus in continuous operation the phosphate rock is charged into one furnace unit while molten slag from a reduction furnace is charged into the other furnace unit containing pre-heated phosphate; the mixture in the second unit is heated to 1500 DEG  C. during which time the combustion products therefrom are passed into the first unit to pre-heat the phosphate rock to 1000 DEG  C. and after discharge of the mixture from the second unit, the first furnace unit is then charged with molten slag and the functions of the furnace units are reversed.ALSO:In making fertilizers comprising phosphate rock and a slag-forming material, e.g. slag containing lime, magnesia, alumina, silica &c. the phosphate rock is pre-heated to 1000 DEG C and incorporated in the molten slag-forming material.  In one embodiment, crushed phosphate rock is pre-heated by being charged into a rotary furnace immediately following the discharge of a previous molten charge, molten slag at 1350 DEG C is then poured into the pre-heated phosphate and the mixture, e.g. of equal proportions of the ingredients, is heated to 1500 DEG C.  The utilization of the heat of the combustion products for pre-heating the phosphate and the transference of the residual heat to recuperators for pre-heating the air required for combustion of the fuel for heating the furnace, may be effected by harnessing two rotary furnaces in tandem (see Group XII), and subjecting them to alternate reversal of firing, thus in continuous operation the phosphate rock is charged into one furnace unit while molten slag from a reduction furnace is charged into the other furnace unit containing pre-heated phosphate; the mixture in the second unit is heated to 1500 DEG C, during which time the combustion products therefrom are passed into the first unit to pre-heat the phosphate rock to 1000 DEG C, and after discharge of the mixture from the second unit, the first unit is charged with molten slag and the functions of the furnace units are reversed.
Patent GB-645118-A (GB)
Title: Improvements in water-tube steam generators
IPC: F22B11/00
Filed: 1948-09-02
Abstract: 645,118. Steam generators. WILLIAMS, C. Sept. 2, 1948, No. 23159. [Class 123(ii)] A steam generator comprises one or more horizontal firetube water boilers or economizers 9, a water drum 28 transversely mounted upon and in communication with the latter, and a steam drum 35 which is disposed parallel with the drum 28, is connected to it by a bank of steam-generating tubes 36, and is provided with a downcomer 42, only partly shown, having branches 44 connected to the bottom of said boilers 9. The generator has a refractory housing 7 including an upright baffle wall 11 which defines a combustion chamber 12 fired by oil burners 13 and locates the fronts of the boilers 9, the latter being actually supported by members 10. The boilers 9 preferably comprise a cylindrical shell, to which end or crown sheets 15 are butt-welded at 16, Fig. 5, and fire tubes 17, the ends. of the latter being expanded into holes 18 in the sheets 15, and then swaged over into counterbored portions 20 of said holes 18. The connection between the drum 28 and each boiler 9 consists of abutting machined flanges 29, 30 with rivets 31 and an inner expanded liner 32.
Patent GB-1432249-A (GB)
Title: Peptide enzyme inhibitor
IPC: C07K5/078
Filed: 1973-05-15
Abstract: 1432249 Octa- and nonapeptides E R SQUIBB & SONS Inc 15 May 1973 [1 June 1972] 23185/73 Heading C3H The invention comprises octapeptides of the formula wherein N is cyclobutylcarbonyl, cyclopropanecarbonyl, or cyclohexylcarbonyl, O is Trp, Tyr, Tyr(Bzl), Pne, Gly, Leu or D-Trp, and X is Gln or Glu, nonapeptides of the formula wherein O<SP>1</SP> is Tyr, Tyr(Bzl), Phe, Gly, Leu or D-Trp, and the nonapeptide of the formula and salts thereof. The peptides are obtained by standard procedures. The following intermediate peptides are also prepared H-Tyr-Pro-OH.trifluoroacetate, HPyr-Tyr-Pro-OH, Z-Pro-Pro-OBu<SP>t</SP>, wherein Z is benzyloxycarbonyl, Z-Ile-Pro-Pro-OBu<SP>t</SP>, Z-Gln-Ile-Pro-Pro-OBu<SP>t</SP>, Z-Pro-Gln-Ile-Pro- Pro-OBu<SP>t</SP>, Z-Arg(NO 2 )-Pro-Gln-Ile-Pro-Pro- OBu<SP>t</SP>, H-Arg-Pro-Gln-Ile-Pro-Pro-OH.2HCl, Z-Phe-Pro-OBu<SP>t</SP>, Cpc-Phe-Pro-OH, wherein Cpc is cyclopropylcarbonyl, H-Trp-Pro-OH. trifluoroacetate, Cpc-Trp-Pro-OH, H-Tyr(Bzl)- Pro-OH.trifluoroacetate, H-Pyr-Tyr(Bzl)-Pro- OH, Cpc-Tyr(Bzl)-Pro-OH. Certain of the peptides absorb ultraviolet radiation and may be used to prepare suntan lotions or creams.
Patent GB-780495-A (GB)
Title: Improvements in writing pads or tablets
IPC: B43L1/12
Filed: 1954-08-10
Abstract: 780,495. Writing tablets. HORNEMANN, E., and STRONG, H. C. Aug. 10, 1955 [Aug. 10, 1954], No. 23207/54. Class 146(2) In a writing pad or tablet of the kind in which a dark coloured adhesive layer such as paraffin wax is covered by a semitransparent sheet and which are separated to obliterate writing, the semi-transparent sheet is part of an overall protective sheet. This sheet is made from cellulose acetate film produced by an "extrusion" process and its underside is rendered semi-transparent by the application of a solution comprising 95 per cent commercial cellulose thinners, 3 per cent commercial acetone and 2 per cent colouring pigment by volume. This solution is applied by a spreader in which a driven polished drum is rotated so its lowermost part picks up the solution from a bath and the protective sheet, in film form, passes over the top of the drum.
Patent GB-721404-A (GB)
Title: Improvements in or relating to reels
Inventor: SANDS ALEXANDER JOHN
IPC: B65H75/14
Filed: 1952-09-16
Abstract: 721,404. Bobbins. LONDON ELECTRIC WIRE CO. & SMITHS, Ltd. June 23, 1953 [Sept. 16,1952], No. 23259/52. Class 120 (3). In a reel for instrument wire, flanges 11, 12 are secured to a tubular barrel 10 by means of screws 21 passing through holes in the flanges to engage threaded holes 20 in the wall of the barrel : the bore of the barrel is of larger crosssectional area than holes 22 in the flanges for mounting the reel on a spindle. The barrel may be reinforced by internal circumferential ribs which may bear against the flanges and longitudinal ribs, as at 17, 18, which also locate the holes 20. The flanges may be of plywood and the barrel of metal.
Patent GB-816191-A (GB)
Title: Improvements in and relating to sheet feeders for presses of the rotating cylinder and reciprocating flat-bed type
IPC: B65H3/24
Filed: 1957-07-23
Abstract: 816,191. Feeding sheets to a press. MIEHLE-GOSS-DEXTER Inc. July 23, 1957 [Aug. 14, 1956], No. 23275/57. Class 117 Rigid sheets are fed from hopper 22 (Fig. 1) by feeder platform 31 driven by, and reciprocated in timed relationship with, bed 12 of a cylinder-and-flat-bed press 12, 13. Carriage 31 has a smaller and slower cycle of reciprocation than the bed 12 and transfers the lowermost sheet 19 from hopper 22 until the front portion of the sheet touches stop 104, the sheet from this position being fed into the nip between bed 12 and cylinder 13 by feeder roller 103 Roller 103 has two movements; it is driven in the forward direction, whilst being lowered on to the sheet under the control of cam 108, Roller 103 is then raised by cam 108 whilst not being driven, in order to permit the next sheet to be brought to the stop 104. With every forward movement, therefore, of bed 12 a sheet is fed to the nip between the cylinder and the bed and simultaneously a following sheet from hopper 22 is fed to stop 104. Bed 12 is reciprocated on wheels 16 and 46 (Fig. 3), by means not described, whilst sprocket 48 on shaft 42 engages and is therefore driven by chain 51 mounted on bed 12 in order to prevent back lash in the reciprocating movement of the said bed. The drive to carriage 31, comes from the thus-driven shaft 42 via gear 53, rack 54 slidingly mounted on bed 12, and a connecting link 58. Gear 53 is made smaller than sprocket 48 so as to make the cycle of carriage 31 smaller and slower than that of bed 12. Carriage 31 carries pushers 61 (Fig; 6), each pusher being pivotally mounted at 68 and influenced by springs 70, the height of the pusher being determined by the position of roller 74. When the carriage moves leftwards, roller 74 engages cam surfaces 77 and 76 to cause the pusher 61 to withdraw beneath the pile of sheets in hopper 22. The shape of the cam then permits the pusher 61 to rise so that it may engage the lowermost sheet on the subsequent forward movement. The height of pushers 61 is also controlled by handle 94 through a linkage 91, track 88, roller 87, and lever 86, so that by swinging handle 94 clockwise the pushers 61 are lowered and the bed 12 may reciprocate without movement of the sheet.
Patent GB-295690-A (GB)
Title: Improvements in and relating to steam generators, gas turbines and the like
IPC: F23M5/08
Filed: 1928-08-13
Abstract: 295,690. Akt.-Ger.Brovvn, Boveri, et Cie. Aug. 17, 1927, [Convention date]. Walls; linings; combustion products, returning to furnaces.-The combustion chamber 1 of a steam-generator, gas turbine or the like is lined with diathermic screens 5 of heat-resisting sheet metal which become incandescent and transmit heat to the space 6 between the screens and the outer refractory wall 3. The heat radiated to the space 6 is carried away for utilization either by water, steam, or air flowing through tubes 4 or by waste gases withdrawn from the main flue and blown upwardly by a fan through the space 6 to mix with the fresh combustion products at 7. When tubes 4, which may form part of the heating surface of the boiler or driving-gas generator, are provided, air to be used for combustion is supplied to the upper end of the space 6 and withdrawn, in a heated condition, at the lower end. In a modification the screens 5 are formed with eyes by which they are suspended from lugs provided on the tubes 4.
Patent GB-864354-A (GB)
Title: Gate valve having yieldable gate engaging elements
IPC: F16K3/02
Filed: 1957-07-24
Abstract: 864,354. Valves. WILLIAMS, J. L. July 24, 1957, No. 23469/57. Class 135. A gate valve comprises a casing 7 having an inlet portion 9 and an outlet portion 11, a gate blade 39 with a semi-circular end bevelled on the upstream side thereof for wiping the surface of a valve seat 45 welded to the outlet portion 11 and an arcuate backing-member 47 welded over its upper portion to the inlet portion 9 and providing two spring fingers 53 which are permanently distorted at 57 towards the valve seat 45 and which force the blade 39 on to its seating 45 when the gate is moved to the closed position. Due to the semi-circular end of the blade 39 the spring fingers only contact the marginal portions of the blade after it has moved a considerable portion of its downward travel, permitting the blade to be moved freely for a major portion of its closing movement. A stuffing-box assembly is provided at 91. By slackening off the bolts 71 the stuffing-box can be moved laterally to provide adjustment for the blade 39 relative to its seat 45. Two purge nipples 13 are provided for drainage purposes and for flushing the valve four other nipples (not shown) are provided in the valve chest assembly 35 for injecting water into the casing. Specification 864,355 is referred to.
Patent GB-719140-A (GB)
Title: Improvements in or relating to storage water heaters
Inventor: BAXTER JOHN CHARLES
IPC: F24H9/00
Filed: 1951-10-09
Abstract: 719,140. Delivery arrangements for storage water heaters. PARNALL, (YATE), Ltd. April 17, 1953 [Oct. 9, 1951], No. 23521/51. Class 64(1) The length of the outlet pipe 1 of a storage water heater is adjusted by means. responsive to the temperature of the water in the heater, so that the head of the pipe is always maintained above the water level while the water temperatureis increasing. In the form shown, the free end of a bimetallic. strip 9 mounted in a short tube 11 is connected to the top of a. flexible corrugated tube 4 of polyvinyl chloride at the top of the tube 1. As the water is being heated, it circulates through the tube 11, through a hole 14 and pipe 12, and causes the strip 9 to lift the top of the tube 4. When. hot water is drawn, cold water supplied to the pipe 13 discharges. into the pipe 11, cools the strip 9. and so lowers the top of the tube 4. The outlet tube 1 may alternatively be telescopic.
Patent GB-1005557-A (GB)
Title: Improvements in or relating to packing of test-pieces during tomography
Inventor: WALKER DAVID ARTHUR
IPC: G01N23/04
Filed: 1964-06-08
Abstract: 1,005,557. Radiography. ROLLS ROYCE Ltd. June 8, 1964, No. 23597/64. Heading H5R. An article to be tested for flaws by tomography is packed round with a material having a radiation absorption coefficient similar to that of the material of the article, the composite package being of circular cross-section in the plane to be tested. When this method of packing is applied to tomography as described in Specification 961,868, it is possible to avoid the effects due to variation of absorption of the radiation as the cross-sectional width of the article in the radiation beam alters, as occurs with such articles as turbine blades. The article 1 (Fig. 1) and packing 2 form a cylindrical package which is mounted on a turntable 3 on support 4. The X-ray source 5 directs rays through the article on to a photographic plate 7 on a rotatable support 8. When the test article is of irregular size or if several articles are to be tested, the packing material used is a liquid, e.g. zinc bromide solution, or powder 10 (Fig. 2) which is contained around the article 1 in a cylindrical box 9. Since small air spaces are liable to form in it, the packing powder is not of the same material as the test article and a material with a greater absorption coefficient is best used, for example, granules of molybdenum or tin, or a mixture of either with iron granules. A solid packing material may be formed (Fig. 4) of two pieces 11, 12 complementary with the shape of the article 1 and of similar absorption coefficient. A clear record of the boundary line between article and packing material is ensured by covering the article with a thin layer 13 of tape formed of rubber, synthetic resin &c. of a substantially different absorption coefficient to compensate for the reduced attenuation of rays passing through the edges of the cylinder 2, compared with those passing through the centre, further packing 14, 15, (Fig. 4), is provided around the cylinder, composed of the same material as the pieces 11, 12. The extra packing may not completely enclose the cylinder (Fig. 5, not shown) as long as equal attenuation is obtained over the plane to be investigated. Besides the tomographic method used in Specification 961,868, methods may be used comprising rotating both the turntable 3 and the film about their own axes, with a stationary source, or rotating the source and film about the stationary article as the centre of radius.
Patent GB-207614-A (GB)
Title: Improvements in and relating to governing devices
IPC: G05D13/00
Filed: 1922-08-31
Abstract: 207,614. Jackson, T., and Ramsay, G. B. Aug. 31, 1922. Inertia governors; fluid relays.-A weighted arm c is held between springs e and is oscillated by a lever a connected to the engine &c. to be governed. Above a critical speed the arm strikes stops f, g on a double-armed lever h controlling the motion of a cruciform member n which on being moved in either direction opens a ball valve m and allows fluid under pressure to operate a spring-loaded piston p which operates the control. The fluid pressure in the cylinder o is limited by a srping-loaded relief valve r. A fluid relay may be arranged to actuate the piston p. A catch y is arranged to hold the piston up permanently if an excessive speed is attained. Suction instead of fluid pressure may be utilized to effect the control.
Patent GB-485075-A (GB)
Title: Evaporating plant for use in distilling sea water
IPC: C02F1/04
Filed: 1937-08-30
Abstract: In a two-stage evaporator plant for additional boiler feed-water, the first evaporator A, in addition to supplying heating steam by the pipe 7 to the second evaporator A1 also supplies heating steam by the pipe 12 to a third evaporator A2 for washing &c. water.  The condensate from the steam used for heating A1 is conveyed by pipe 8 as feed water to A1, <PICT:0485075/III/1> from which the evaporated steam passes to feed-water heater M. The water for A2 is supplied from A through the pipe 14, and the steam evaporated from A2 passes by pipe 15 to a condenser G, where it heats the sea-water passing by pipes 1, 2, 3 to the first evaporator A.  Condensate from the steam supplied by pipe 12 to A2 passes by pipe 16 to G.
Patent GB-720347-A (GB)
Title: Improvements in and relating to grain drying apparatus
IPC: F26B17/02
Filed: 1953-10-23
Abstract: 720,347. Drying apparatus. HOSIER, A. J. Oct. 23, 1953 [Sept. 22, 1952], No. 23762/52. Class 34 (2). Apparatus for drying grain &c. has an inclined perforated tray 1 over which the grain fed from a hopper 6 is moved by an endless conveyer having chains 2 with spreader bars 5 and hot air is blown upwardly through the grain to dry it and then cold air is blown downwardly to cool the grain. The underside of the tray 1 is enclosed by a channel section container having a bottom 10 and sides 11 and the cooling section is enclosed by a housing 14 leading into a duct 15 along which the cold air is drawn by a fan in casing 17. The air passes through a chamber 18 where it is heated by an oil fired furnace 20. A connection 21 allows recirculation and auxiliary air is supplied by a compressor 22.
Patent GB-998431-A (GB)
Title: Improvements in or relating to articulated bracelets
Inventor: WALKER KENNETH CECIL
IPC: A44C5/02
Filed: 1963-06-14
Abstract: 998,431. Bracelets. DAVID SHACKMAN & SONS Ltd. June 8, 1964 [June 14, 1963], No. 23762/63. Heading A3H. In a bracelet hollow links are positioned on a connecting chain 1 by pressing the links on to toothed surfaces of the outer links of the series of pivoted links 2 and 3 forming the chain. Instead of the links having toothed surfaces toothed inserts may be fitted between each outer pair of links 2 and 3. The links have a curvature 8 and are made of a soft metal, such as gold, to facilitate engagement with the teeth 6.
Patent GB-1101982-A (GB)
Title: Proces of separating normally gaseous components for the recovery of ethylene therefrom
IPC: C07C7/11
Filed: 1965-06-04
Abstract: In the separation of ethylene from normally gaseous hydrocarbon mixtures, the mixture is treated at low temperature and high pressure with propane or a propane-propene mixture which is then separated into its components by fractional distillation.  Specified preliminary treatments include the removal of acetylene, sulphur compounds, carbon oxides and water, and distillation to remove compounds containing 4 or more carbon atoms.  The lean oil is said to absorb practically all of the hydrocarbons other than methane but to allow a proportion of the other components to pass on.
Patent GB-614899-A (GB)
Title: A body protecting device for aircraft personnel
IPC: B64D25/00
Filed: 1946-10-13
Abstract: 614,899. Pilot ejection apparatus. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Oct. 13, 1946, No. 23940. [Class 4] [Also in Group VII] The ejection seat 11 of an aircraft is slidable on a back frame 10 and is provided with abutments 19 which engage rearward extensions of a body protecting plate 20 (see Group VII). A parachute container 16, mounted on the frame 10, has a padded front against which the pilot's head rests. A face-protecting screen 17 has a handle which is connected by a cable 18 to the ejecting mechanism. The seat is provided with side wings 13 and foot-rests 14. Specification 583,257 is referred to.
Patent GB-675338-A (GB)
Title: Improvements in or relating to a voltage limiting device
IPC: H02H9/04
Filed: 1950-10-02
Abstract: 675,338. Valve limiting circuits. SMOOT, C. H. Oct. 2, 1950, No. 24023/50. Class 40 (vi). [Also in Group XXXV] An A.C. potential to be limited is applied over high resistor 14 to a bridge of rectifiers 17, 19 and resistors 18, 21, the bridge being biased from an A.C. source 22 feeding a potential divider 23 from which a suitable voltage is fed over rectifiers 25, 26 to the junctions of the rectifiers and resistors. Since the bias is A.C. the input is not distorted but only limited to the value set by voltmeter 27. In order to provide a minimum limit, an A.C. of opposite phase from the input and of greater amplitude than the limit set by the bias on the bridge is applied over transformer 30. This results in a small input A.C. having a large amplitude and vice versa, the resulting signal then being fed to a similar bridge to limit the maximum amplitude. An A.C. of the same phase as the input and same amplitude as that from transformer 30 is added to the A.C. limited by the second bridge over transformer 34 thus reversing the amplitude conversion. The circuit is described as applied to a system delivering fluid at constant pressure (see Group XXXV).
Patent GB-259215-A (GB)
Title: Improvements in and relating to means for reproducing position
IPC: G05D3/12
Filed: 1926-09-29
Abstract: 259,215. British Thomson-Houston Co., Ltd., (Assignees of Nixdorff, S. P.). Sept. 29, 1925, [Convention date]. Controlling motors to follow distant movements.-In controlling a motor, which may train a search-light, to follow the movements of a distant instrument such as a telescope by an arrangement of induction devices which impress on the motor a voltage proportionate to the angle of lag, means are provided for automatically reducing the rise of voltage while the motor is accelerating and increasing the fall of voltage while the motor is slowing down, in order to increase the accuracy of the control. In the arrangement described an angularly movable coil 15 operated by the telescope 11 and carrying single-phase alternating current acts through interconnected armature windings 14, 19 to generate voltage in a movable coil 18 operated by the motor 12 in conjunction with the search-light 10. An electron discharge tube 22 amplifies the output of the coil 18 and delivers it through a pair of rectifying and further amplifying electron tubes 24, 25 to the field of a small motor-driven direct current generator 38 serving as exciter to a larger motor-driven generator 44 which feeds the working motor 12. According to the invention the armature winding 19 during the run of the motor is first moved forward and afterwards back again over a limited angle by differentially acting magnets 54, 55, the direction and magnitude of the movement changing with the change of impressed voltage from the coil 18. The effect is to decrease the acceleration and shorten the period of slowing-down. Specification 247,087 is referred to.
Patent GB-810445-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/22
Filed: 1955-05-02
Abstract: 810,445. Suction cleaner dust bags. ELECTROLUX Ltd. May 2, 1955 [May 19, 1954], No. 24106/57. Divided out of 810,441. Class 8(2). The open end of a suction cleaner filter bag 19 has a thin metal flange 74 which is clamped between a rib 11 of the cleaner casing 10 and a gasket 75 on the inlet end cover 17 ; the gasket also being in sealing engagement with the rib 11 at a zone radially outwardly of the flange 74.