baber/WOPTO huggingface dataset:
Patent GB-1077008-A (GB)
Title: Improvements in the production of ammonium bisulphite for use in sulphite pulp manufacture
IPC: C01C1/22
Filed: 1963-06-25
Abstract: Sulphur dioxide and/or ammonia from scrubbed gases obtained in the production of ammonium bisulphate by scrubbing sulphur dioxide-containing gas with an aqueous solution of ammonia are removed by contacting with an approximately equimolar solution of ammonium sulphite and ammonium bisulphite. The gas which may contain 16-18% SO2 from burning S in air, is passed at 10 into a packed tower, whence ammonium bisulphite is withdrawn at 12.  Ammonia solution or ammonia plus water enters the tower at 11 and effluent gases pass at 13 to a packed recovery tower where they meet a countercurrent of solution of equimolar ammonium sulphite and ammonium bisulphite of pH 6.1, which is recycled from pump tank 17 to the recovery tower at 15.  To ensure maintenance of pH 6.1 ammonia may be added at 19 or the So2 or ammonia input to first tower may be varied.  Part of the solution is withdrawn at 22 to the acid tank or to the acid tower.
Patent GB-1504367-A (GB)
Title: Apparatus for the automatic supply and unloading of reels for automatic wire winding machines
IPC: B65H67/06
Filed: 1975-06-13
Abstract: 1504367 Doffing and donning; feeding reels to and from a wind-up station TECHNOFIL SpA 13 June 1975 [17 June 1974] 25297/75 Headings D1F and D1J In Fig. 3 a plurality of empty reels 2 rest on an inclined slideway 1. When a diaphragm 9 swings in the direction G it pushes a fully wound reel 2 off a trolley 28 onto a discharge chute 60 and, at the same time permits the leading empty reel on the slideway 1 to move onto the now vacated trolley 28. As the diaphragm 9 swings in the direction G a fork 17 rotates in the direction H to hold back all but the leading reel 2 on the slideway 1. Thus, only one empty reel at a a time can move onto the trolley 28. The trolley 28 then moves on rails 28a to a wind-up station Fig. 6 where a swinging arm 34 carries means 60, 62 for lifting the empty reel 2 up a curved wall 51 into alignment with a wind-up spindle 4. The spindle and bobbin are then coupled together to rotate the empty bobbin and a fresh wind-up commences. The arm 34 can then swing anti-clockwise to a setting in which it can receive a fully wound reel when it is doffed from a windup spindle 3, the doffed reel resting on rollers 61, 62 on the arm 34 and rolling down a curved wall 50 on the arm 34 swings downwardly to deposit the fully wound reel on the trolley 28. The trolley 28 then carries the fully wound reel back to a setting in alignment with the diaphragm 9 and the procedure is then repeated except that at the next action an empty reel will be lifted up into alignment with the spindle 3 and a fully wound reel will be removed from the spindle 4. On the arm 34 the roller 62 can be rotated by a motor 66. The purpose of this is to rotate an empty reel, once it has been aligned with spindle 3 or spindle 4, to cause a seat 67 on the empty reel to be aligned with a coupling projection 70 on the windup means. The specification states that there may be a single wind-up spindle and not two as shown.
Patent GB-351318-A (GB)
Title: Improvements in or relating to the preparation of vinyl esters
Filed: 1930-08-27
Abstract: Vinyl esters are prepared by the interaction of acetylene and a lower mono-carboxylic acid of the aliphatic series at a temperature below 50 DEG  C. in the presence of a mercury compound as catalyst, in conjunction with sulpho-acetic acid and acetic anhydride.  It is preferred to work at a temperature below 25 DEG  C., the acetylene being introduced at such a rate that the gas is completely absorbed. When the reaction is complete, acetate of sodium or calcium is added, and the resulting product distilled at reduced pressure; the separation of the vinyl acetate by fractionation may also be effected in this distillation.  If this addition of acetate is omitted, some acetaldehyde and tar are produced.  Examples are given illustrating the effect of variation in temperature on the amounts of vinyl acetate and ethylidene diacetate produced.  The preparation of the mercuric sulphate catalyst is described, and also the production of vinyl propionate.  In the process described in the Specification as open to inspection under Sect. 91 (3) (a) the addition of acetic anhydride was optional.  This subject-matter does not appear in the Specification as accepted.
Patent GB-801610-A (GB)
Title: Improvements in or relating to cages for cylindrical roller bearings
IPC: F16C33/54
Filed: 1956-08-22
Abstract: 801,610. Roller bearing cages. BALL BEARING WORKS J. SCHMID-ROOST, Ltd., SCHMID & CO. SUCCESSORS. Aug. 22, 1956 [April 30, 1956], No. 25682/56. Class 12 (1). A cage for cylindrical roller bearings comprises sheet-metal rings 1, 2 connected by riveted pins 3, which separate the rollers with clearance, the rings having inner flanged edges 7, 8 adapted to be guided on rims on an inner race 5, and bent-in retaining lugs 9, 10, at their outer edges, adapted to retain the rollers in the absence of the outer race ring. The lugs 9, 10 are of such width that they are not contacted by the rollers under normal operating conditions. Alternatively, as shown in Fig. 5, the rings have outer guiding rims 15, 16 and inner retaining lugs 18, 19.
Patent GB-393452-A (GB)
Title: Improvements relating to water softening apparatus
IPC: C02F1/42
Filed: 1932-09-15
Abstract: 393,452. Softening water. UNITED WATER SOFTENERS, Ltd., Aldwych House, Aldwych, London.-(Permutit Co. ; 440, 4th Avenue, New York, U.S.A.) Sept. 15, 1932, No. 25735. [Class 46.] In a multiple-way valve for use in baseexchange water-softening apparatus, comprising parts that are movable relatively to each other for modifying the flow of liquid through the apparatus, at least one of such parts is made of hard rubber. Fig. 2 shows a valve device having a rotary member 12 with grooves 30, 34, &c., on its lower surface, which in three positions, corresponding respectively to watersoftening treatment, back-flushing, and regeneration, make the necessary connections, through ports in a fixed plate 14 and corresponding spaces beneath the plate, between the hard-water main, the upper and lower ends of the treatment chamber, the soft-water service main, a receptacle containing regenerating liquid, and a drain. The member 12 is held in contact with the plate 14 by a spring 16 and the pressure of water supplied to the space 27 above the plate by a byepass from the hard-water main. In the position for regeneration hard water passes through a injector nozzle 35, draws regenerating liquid into a space 36, and passes with it through an injector passage 37 and small radial passages 39. This water is distributed round the edge of a plate 28 and over the base-exchange material in the vessel below. The grooves and ports of the valve are so arranged that during regeneration hard water is byepassed to the service main. The regenerating liquid is drawn to the space 36 from a storage vessel through a pipe provided with a valve which is closed by a float in the storage vessel when a predetermined amount of the liquid has been withdrawn. The water passing through the injector after this valve has been closed serves to rinse the base-exchange material. A second floatoperated valve controls the supply of water from the main valve to the storage vessel to replace the liquid withdrawn. The body portion of the main valve may be of cast iron, brass or aluminium alloy and both the member 12 and the plate 14 may be of hard rubber or one may be of hard rubber and the other of bronze or brass. If both members 12 and plate 14 are of hard rubber one of them may have a rigid metallic backing. A modified form of valve is shown in Fig. 9. In this form the hard water main is connected to the space 69 above the rotary member 68 and the latter has ports 100 therethrough which can be brought into register with ports 71 in the plate 70 for passage of water to spaces below the plate in various positions of the valve. The valve has four working positions, the portion for rinsing being different from that for regeneration. The valve has passages so that a short flush of water passes through the supply pipe for the regenerating liquid as the valve is moved from the regenerating position to the rinsing position.
Patent GB-313374-A (GB)
Title: Improvements in refrigerating plants
IPC: F25B39/02
Filed: 1928-09-07
Abstract: 313,374. Marks, Sir G. C., (Williams Oil-o-matic Heating Corporation). Sept. 7, 1928. Refrigerators, domestic and like. - A float chamber 5 for controlling the admission of refrigerating fluid has a depending hollow boss 6 which is interposed between central bosses 4 at the top of hollow side sections 1, 2, a corresponding tubular spacer 9 being inserted between similar central bosses 4 at the bottom of the side sections. The interior of the float chamber 5 communicates with the interior of the boss 6. The side sections are clamped together by bolts (not shown) so that the joints with the boss 6 and spacer 9 are gas and liquid tight. The float chamber has a valve operated by a float 11 and connected to the high-pressure side of the compressor, the valve closing when the liquid fills the side sections 1, 2 and rises to the level of the dotted line in the float chamber. A connection 13 is provided to the low-pressure side of the compressor. By this construction the width of the unit is not greatly increased by the addition of the float chamber. Ice cube trays are supported on the horizontal ribs 15, the tray compartment being closed at the top, bottom, and rear by a plate 16. The front of the chamber may be closed by a door hinged to the top of this plate.
Patent GB-692701-A (GB)
Title: Improvements in frozen confections and method for their preparation
Inventor: OLDHAM JACK
IPC: A23G9/26
Filed: 1949-10-07
Abstract: 692,701. Ice-making. PARAMOUNT AUTOMATIC, Ltd., [trading as PARAMOUNT ICES.] Sept. 19, 1950 [Oct. 7, 1949], No. 25825/50. Class 29 [Also in Groups V and VI] Frozen confections with an outer casing of ice are prepared by filling a mould 1 with liquid e.g. coloured and flavoured water, freezing the liquid to such an extent that a central portion 2 remains liquid, pouring off the unfrozen liquid and filling the cavity with ice cream, syrup or other filling. A stick may be inserted in the filling and the whole subjected to final freezing.
Patent GB-753807-A (GB)
Title: Improvements in edging or cover strips and securing means therefor
IPC: A47B95/04
Filed: 1954-09-07
Abstract: 753,807. Mouldings. COWDROY, T. C. Sept. 7, 1954 [Sept. 8, 1953], No. 25865/54, Class 20(4). A cover strip or moulding 12, Fig. 3, is fastened to a surface 11 by securing spring detents 10 to the surface 11 and applying pressure to the strip 12 so that the detents enter a recess 17 provided in the strip and engage ratchet teeth 16 formed therein. Each detent 10 is fastened by a screw 14 passing through an aperture in a securing portion 13, and a cavity 18 is formed in the strip 12 to receive the screw head. The strip 12 has a top flange 19 to engage the upper surface of an object to which it is applied and is arcuately formed to provide clearance from surface 11. In a modification, Fig. 6, a double spring detent 27 is screwed to the surface 30, which may be a wall stud, and the strip 20 has two sets of ratchet teeth 23 formed in the recess 24. Flanges 25 on strip 20 engage wall sheets 21, 22. In a further form, Fig. 9, an internal corner cover strip 31 has flanges 37 to engage wall sheets 32 and is firmly retained in position by double sets of ratchet teeth 33 engaged by double spring detents 34 extending from portions 46 screwed at 36 to studs or timbering 35.
Patent GB-338872-A (GB)
Title: Improvements in the exhaust and scavenging arrangements of internal combustion engines
IPC: F02B37/02
Filed: 1929-08-26
Abstract: 338,872. Kjaer, V. A. Aug. 26, 1929. Drawings to Specification. Four-stroke-cycle engines; cylinders, pipes for. -In multi-cylinder engines which are scavenged by air from a blower during the last parts of the exhaust periods, the cylinders are connected in groups to exhaust manifolds so that the high pressure exhaust period in any one cylinder will not cause such a back pressure in another cylinder as to hinder the scavenging action therein. In an eight cylinder engine two exhaust manifolds are used; the cranks are at 90‹ and the cylinders I, IV, V and VIII are connected to one manifold and the remaining cylinders to another. The exhaust periods of cylinders I and IV are 90‹ apart and a similar time interval exists between V and VIII; the two pairs are separated by an interval of 270‹. The exhaust period in any one cylinder extends over a period of crank movement of 255‹, the high pressure position being about 35‹ on each side of bottom dead centre. The scavenging period extends over a portion of the intake stroke. As a consequence of the described connections the high pressure exhaust period in any one of the four cylinders connected to one manifold is over before scavenging commences in any other cylinder of the group. In a seven cylinder engine two groups of three cylinders exhaust to two manifolds the remaining cylinder having a separate exhaust pipe.
Patent GB-379870-A (GB)
Title: Improvements relating to motor-car headlamps
IPC: F21S8/10
Filed: 1931-09-16
Abstract: 379,870. Vehicle lamps. WOOD, R., 109, Town Street, Old Malton, Malton, Yorkshire. Sept. 16, 1931, No. 25915. Drawings to Specification. [Class 75 (ii).] Lantern fronts.-In a vehicle lamp provided with a lens or prism adapted to refract downwardly that portion of the projected light which normally would constitute the upper half of the beam, the lens or prism is made hollow and filled with a clear liquid. It may be placed in the top or bottom half of the lamp and in front of or behind the usual front glass, or it may be used in place of such front glass. It may be semicircular in elevation and wedgeshaped in cross section and it may be formed with a peripheral mounting flange. It may be cast hollow or built up from parts cemented together and it may be made of glass, celluloid, or other transparent material and filled with water or oil.
Patent GB-938302-A (GB)
Title: Improvements relating to electrical supply systems
Inventor: HOBBS EDWIN DANIEL
IPC: H02J7/16
Filed: 1961-07-18
Abstract: 938,302. Supply systems for railway vehicle services. J. STONE & CO. (DEPTFORD) Ltd. May 9, 1962 [July 18, 1961], No. 26047/61. Class 38 (4). An electrical supply system comprising a variable-speed alternator has the excitation of the alternator so arranged that the current delivered by the alternator remains substantially constant over a wide range of speed. The alternator 3 is provided with main and auxiliary field windings 4, 5 wound in an additive sense, the main winding 4 being excited in accordance with the load 1 on the alternator, the auxiliary winding 5 being excited in inverse proportion to the output frequency of the alternator by way of a frequency-sensitive circuit 6, the choke 9 of which saturates at high frequencies. The excitation of the auxiliary winding 5 is thus greater at low frequencies so that the full output of the alternator 3 is developed at very low speeds. The alternator is preferably a high-frequency unsaturated machine. The system may incorporate a variable resistor whereby the output level of the alternator may be adjusted.
Patent GB-616212-A (GB)
Title: Improvements in or relating to pipe clips and rubber-lined vats provided therewith
IPC: F16L3/13
Filed: 1946-08-30
Abstract: 616,212. Clip-brackets. DUNLOP RUBBER CO., Ltd., and JONES, E. W. Aug. 30, 1946, No. 26076. [Class 52 (v)] [Also in Group XXXVI] Pipe-holding clips 2 are made of rubber and comprise a base portion 1 adapted to be vulcanized to the rubber lining 3 of an electrolytic vat, and resilient lips 6 slightly spaced apart along their edges along a line parallel to the base portion to facilitate insertion and removal of the pipe.
Patent GB-267422-A (GB)
Title: Apparatus for supplying furnaces with a rotating air current
IPC: F23L9/00
Filed: 1926-02-25
Abstract: 267,422. Haddan, A. J. H., (Aktiebolaget Ljungstr÷ms Angturbin). Feb. 25, 1926. Air, supplying; crowns and roofs; doors.-Cold or preheated secondary air is introduced into a furnace in the form of a rotating current by means of a tube-piece or the like which is so formed that the air enters the tube-piece tan gentially or obliquely tangentially. The tube piece, which may be connected to an air supply channel or simply exposed to the atmosphere, is preferably made of cast iron, but it may be formed in the brickwork of the furnace walls and pro vided with means such as suitably arranged bent plates for effecting the tangential inflow. In the form shown in Fig. 2, an air supply channel 12 is provided with a partition wall 15 terminating in a movable baffle 18 so as to control the relation between the quantities of primary and secondary air supplied respectively bv lower and upper compartments 16, 17. The upper compartment 17 communicates through a restricted opening 20 with a supply pipe 13 carried by the furnace door 10. The supply pipe 13 communicates with two substantially parallel pipes 11 which have closed outer ends and which extend alongside each other through the door 10. Adjacent sides of the pipes 11 are slit longitudinally and the upper edges of the slits are bent against each other, and preferably connected, to form a partition wall 14 so that the air from pipe 13 enters pipes 11 tangentially. In the form shown in Fig. 5, a tube 22, preferably disposed in the fore furnace arch 21, communicates by means of a channel 23 with the space above a mechanically stoked grate. The inlet end of the tube 22 is provided with two or more equally spaced slits, one end of each of which is bent inwardly, and the quantity of air supplied is controlled by means of a cap 24 movable longitudinally by means of a handwheel 26.
Patent GB-1464999-A (GB)
Title: Watch escapement
IPC: G04B17/34
Filed: 1974-06-12
Abstract: 1464999 Timepiece balances FABRIQUE D'HORLOGERIE CHS TISSOT ET FILS SA 12 June 1974 [20 June 1973] 26124/74 Heading G3T A balance spring 15 is fixed to a balance staff 1 by means of a metal collet 8 which has an axially  extending impulse pin 18 to co-operate with the fork 20 of a pallet lever 21. The staff may be of metal or moulded from plastics integrally with a hub 5 and radial arms for attachment to a rim. An axial groove 2 in the staff co-operates with lever dart 22. The inner end of the spring 15 fits closely around a surface 14 on the collet and is held by adhesive 16 in a notch 17. The notch is shown in the side face of the collet but may alternatively be in the adjacent end-face. The outer surface of the pin 18 is coaxial with the collet while the pin's inner face 19 is cut by a tool rotating about an axis parallel to that of the collet.
Patent GB-199998-A (GB)
Title: Improvements in resilient wheels for motor vehicles and other industrial purposes
IPC: B60B9/18
Filed: 1922-09-27
Abstract: 199,998. Forcada, P. V. Sept. 27, 1922. Spring wheels.-A wheel comprises a hub 1, to an extension 3 of which are bolted discs 4, 5, shaped to enclose an annular cavity, and flanged to accommodate a wheel centre 6 fixed to the rim 8. Side plates 10 strengthen the wheel. In the annular cavity is placed an air tube 11 formed with outer cases 12, 13 of leather or the like which are attached to the discs 4, 5 by metal studs 14. The discs 4, 5 have projections 16 and depressions 15 respectively to prevent creeping of the inflated tube, and the wheel centre 6 is corrugated where the wall contacts with the air tube. Chains connect the hub and the rim and flat rings 20 or ball bearings are placed between the wheel centre and the discs 4, 5. In modifications, the wheel centre, spokes, &c. are all of wood and the air tube may be of polygonal contour.
Patent GB-635940-A (GB)
Title: Improvements in or relating to chimney structures
IPC: E04F17/02
Filed: 1947-09-26
Abstract: 635,940. Chimneys. HOLE, G. B. Sept. 26, 1947, No. 26141. [Class 25] A pre-fabricated building unit comprising one or more chimney flues is adapted to be placed on a built-up chimney flue where. the rafters intersect and has on at least one side an oblique laterally extending soaker which is laterally curved so that, although it may be covered by higher courses of roof covering to near its lower extremity, its lower extremity is raised to lie at least -flush with the adjacent lower courses of roof covering. In one form of the invention a unit to be placed on a single existing chimney flue at rafter' level comprises a square or circular flue B surrounded by a block A in step-formation. A lead apron G is fitted along the front of the block A and a recess D is provided above soakers C along each side of the unit for the reception of roof covering extending over the soakers C which are curved. Along the back of the unit, a back gutter E is provided over which roof covering may extend into a recess F. More than one flue B may be provided in the block A in which case a channel J is provided in the wall separating the flues in order to conduct water from the back gutter E<SP>1</SP> to the front apron G<SP>1</SP>.
Patent GB-600974-A (GB)
Title: Improvements relating to gas or other fires
IPC: F24C15/30
Filed: 1945-10-08
Abstract: 600,974. Mounting gas &c. fires. RADIATION, Ltd., STRINGER, W. L., and BARNES, W. E. Oct. 8, 1945, No. 26146. [Class 126] A gas or electric fire is secured in a recess a in a chimney breast b by screws g which pass through lugs d on the body c of the fire and projections f on fixing plates e secured to the brickwork b, the lugs d being fitted with adjusting screws h which bear on the front faces of the projections f and serve to compensate for small errors in the mounting of the plates e or irregularities in the wall surface. The fixing means are concealed by a removable twopart surround i, j, the part i being carried on the body c and the part j being provided with eyes n for engagement over suspension pegs m secured to the upper part of the body c. Air holes k are provided in the part j.
Patent GB-1534544-A (GB)
Title: Dice and dice games
IPC: A63F9/04
Filed: 1976-06-29
Abstract: 1534544 Dice J BAKER 29 June 1976 [19 June 1975] 26173/75 Heading A6H A dice comprises two generally U-shaped surfaces 1, 2 each having end portions (9),  10, 14, (15) such that the dice will come to rest with one of the four end portions uppermost. The dice is assisted in rolling to a rest position if edges 11, 13 are provided. It is moulded or machined from a laminated block of acrylic plastics.  The faces are marked with 1, 2, 3 and 4 engraved dots, the sizes being such that equal amounts of material are removed and the balance maintained. The markings may be painted, or stuck, on.  The faces may bear letters or numbers. Eight dice may be used for a word game each having a different colour, seven having three consonants and a vowel or Y, and one having two question marks, a Z and an X. Six dice may be used for a number game in which each dice has opposite faces of different colour and bearing the numbers 1 to 4.