baber/WOPTO huggingface dataset:
Patent GB-460885-A (GB)
Title: Improvements in or relating to non-cellulosic organic material derived from the black liquor resulating from the pulping treatment of wood or other fibrous material
IPC: D21C11/00
Filed: 1935-05-02
Abstract: Spent digestion liquor of alkaline reaction, known as black liquor, resulting from the chemical digestion of fibrous materials is treated to precipitate the non-cellulosic organic material by addition of a neutralizing agent to produce a pH value between 8 and 9 without addition of other materials or substantial concentration. Neutralization is preferably effected by bubbling carbon dioxide into the liquor.  The liquor is heated to 50--70 DEG  C. during or after precipitation to coagulate the precipitate, and is cooled prior to filtration.  The filtrate is treated for re-use as digestion liquor. The precipitate is washed and treated with dilute sulphuric or other acid to neutralize any alkali; it is again washed and dried and finally powdered.  The material may be used as a binder for a moulding composition as described in Specification 460,939, [Group V].  The Specification as open to inspection under Sect. 91 also comprises the recovery of the non-cellulosic organic material by electrolysis at room temperature in a cell having a mercury cathode, the amalgam formed being treated for recovery of mercury and caustic soda is a separate cell.  One form of cell comprises a bottom layer of mercury into which dip partitions dividing the cell into three compartments.  The outer compartments containing the black liquor are provided with anodes and the inner one containing water or caustic soda solution with a cathode of iron or carbon, the mercury constituting an intermediate electrode. The mercury is transferred between the compartments by rocking. A shunt circuit containing a variable resistance may be connected between the mercury and the cathode.  In a modification, a rotary anode provided with a scraper for removal of the deposit is employed; the anolyte is continuously circulated and filtered for removal of the deposit.  This subject-matter does not appear in the Specification as accepted.ALSO:Spent digestion liquor of alkaline reaction, known as black liquor, resulting from the chemical digestion of fibrous materials is treated to recover the non-cellulosic organic material by addition of a neutralizing agent to produce a pH value between 8 and 9, without addition of other materials or substantial concentration.  Neutralization is preferably effected by bubbling carbon dioxide into the liquor.  The liquor is heated to 50--70 DEG C. during or after precipitation to coagulate the precipitate, and is cooled prior to filtration.  The filtrate is treated for re-use as digestion liquor.  The precipitate is washed and treated with dilute sulphuric or other acid to neutralize any alkali; it is again washed and dried and finally powdered.  The material may be used as a binder for a moulding composition as described in Specification 460,939, [Group V].
Patent GB-1241715-A (GB)
Title: Improvements in or relating to the production of sponge iron
IPC: F27B7/36
Filed: 1969-06-23
Abstract: 1,241,715. Extracting iron. GUTEHOFFNUNGSHUTTE STERKRADE A.G. June 23, 1969 [June 24, 1968], No. 31566/69. Heading C7D. Iron oxide ore is pre-heated to reduction temperature and then fed to a kiln at the feed end of which coal is blown in; the kiln gases flow co-currently with the charge, and preferably do not contact the pre-heater gases. A sulphurremoving agent such as dolomite may be included in the charge. As illustrated ore pre-heated by hot gases 2 passes through gas-tight lock 3 to kiln 7 into which coal is blown at 8 and air by blowers 11. The kiln discharge is cooled at 30, and surplus coke removed at 33, the metallic product passing to arc furnace 23. The gas discharge is combusted in chamber 14 and then passes through boiler 17, the stream from which drives a generator 21 to provide power for furnace 23.
Patent GB-371799-A (GB)
Title: Improvements in the manufacture of waterproof bags
IPC: B65D30/08
Filed: 1930-10-21
Abstract: 371,799. Sacks. NORSK HYDROELEKTRISK KVAELSTOFAKTIESELSKAB, 7, Solligaten, Oslo. Oct. 21, 1930, No. 31617. Convention date, Jan. 17. Void [Published under Sect. 91 of the Acts]. [Class 94 (ii).] Bags are made water proof at the seams by providing inside then strips of material which adhere to the bag along their edges and are free in the middle to expand under pressure of the goods in the filled bag A strip of paper, gummed on one side from A to B and on the other side from C to D, is placed between the sides of a bag which are then sewn together through the strip at the point EF. In other forms, the bag sewing passes through both edges of the strip. If lined bags are being made, the lining is made large enough to extend beyond the edges of the bag material and after it has been adhered to the material, its edges are turned inwards and adhered to the lining on the opposite portion of the bag as shown at b, Fig. 6.
Patent GB-1148962-A (GB)
Title: Improvements in or relating to signal transmission systems
IPC: H04N7/084
Filed: 1966-07-14
Abstract: 1,148,962. Multiplex pulse signalling. WESTERN ELECTRIC CO. Inc. 14 July, 1966 [2 Aug., 1965], No. 31673/66. Heading H4L. The horizontal sync. pulse of a television video signal at a transmitter is detected at 12, Fig. 1, and a short auxiliary pulse appearing a selected time after the leading edge of the sync. pulse is generated at 13. The video signal is delayed at 11 by an amount such that the auxiliary pulse, when combined at 14 with the video signal is situated near the beginning of the front porch interval of the sync. signal. A signal from detector 12 via circuit 15 enables the combination of the outputs from 11 and 13 only during this period. Audio signals are sampled by gate 16, controlled by detector 12 via circuit 17, and combined with the video signal at 18 so that the audio sample is situated on the front porch following the auxiliary pulse. A circuit 19 controls combining network 18 in a similar manner to network 14. A higher sampling rate may be used in which case the audio samples are bunched together by delay elements or the like so that several audio samples are placed on each front porch interval, reciprocal delay devices being used at the receiver. At the receiver, Fig. 3 (not shown), the auxiliary pulse in the composite signal is detected at (31) and supplied to a circuit (33) which generates a pulse to gate out the audio samples from the composite input signal at (32) so that the original audio signal is reconstituted at (34). Detector (31) also controls a circuit (36) which generates a pair of pulses to gate out the auxiliary pulses and the audio samples from the composite video signal.
Patent GB-455535-A (GB)
Title: Improvements in or relating to coaxial conductor electric cables
IPC: H01B11/18
Filed: 1935-11-15
Abstract: 455,535. Cables. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Talmann, A.) Nov. 15, 1935, No. 31679. Convention date, Jan. 23. Addition to 417,929. [Class 36] In a coaxial conductor air-space cable of the kind described in the parent Specification wherein the outer conductor is formed by a plurality of overlapping interengaging strips 2 held together by external bindings 4, 5, and wherein each strip comprises two laterally offset strip-like portions 9, 10, Fig. 2, the inner portions 10 are thicker than the outer portions 9 and the edges of the inner portions of adjacent strips abut, whilst the outer portions are preferably of such a length that a space 11 is left between the edges of adjacent outer portions. One or both edges of the inner portion of each strip may be bevelled to obtain a greater area of contact between the abutting edges of the strips. A lead sheath 6 may be applied over the bindings as shown in Fig. 1.
Patent GB-925195-A (GB)
Title: Collapsible tubes and closure means therefor
Inventor: ALEXANDER DAVID JOHN
IPC: B65D47/20
Filed: 1958-10-03
Abstract: 925,195. Container closures; resilientwalled containers. UNILEVER Ltd. Oct. 5, 1959 [Oct. 3, 1958], No. 31690/58. Classes 66 and 125(3). A collapsible tube 1 of resilient material, e.g. polythene coated internally with polyvinylidene chloride, comprises a non-return valve having a movable member 11 with resilient legs 15 urging the member 11 on to its seating. The member 11, which is of plasticized p.v.c., has a locating spike 12 which functions as a needle valve in a port 5 of the tube 1. A cap 7, of wood-filled urea-formaldehyde resin, may be screwed down to compress the legs 15 and so close the valve, a slight unscrewing of the cap allowing the valve to open when the tube is squeezed. In a further embodiment, Fig. 6, a unit 23 is secured by adhesive in the neck 21 of a tube 20, and the valve member 29 is positioned on its seating by a skirt 31. Again the movable valve may comprise a disc with an annular groove in its side away from its seating; the free ends of resilient legs slide in the groove, the opposite ends of the legs being integral with an annular plate. According to the Provisional Specification the valve member may be ball-like and the resilient legs may be in the form of a single cylinder having holes or slots cut in its wall to give it resiliency; or again, the legs may be replaced by a spongelike or spring member.
Patent GB-761877-A (GB)
Title: Improvements in or relating to crystallizing processes and apparatus
IPC: B01D9/00
Filed: 1953-11-16
Abstract: <PICT:0761877/III/1> In the production of ammonium sulphate by the absorption of ammonia-containing gas in a dilute sulphuric acid solution saturated with ammonium sulphate so as to produce a supersaturated solution in the metastable field (the concentration being below that at which new crystals are formed in the presence of seed crystals), passing the supersaturated solution upward through a crystallization stage, and returning the desupersaturated solution to the absorption stage, the crystallization stage consists of a lower high velocity zone and an upper low velocity zone, the velocity in the low velocity zone being 5-15 in./min. and 6-7 times smaller than that in the high velocity zone, most of the solution returned to the absorption stage being withdrawn from the lower zone, the remainder being withdrawn from the upper zone, and thereafter admixed with make up acid and heated directly with steam before return to the absorption stage.  As shown solution passes from the absorption vessel 120 via pipe 150 provided with deflectors 190 to crystallization bowl 100 wherein crystals are withdrawn at suction head 700.  The bulk of the solution is withdrawn through pipe 610, provided with throttling valve 612, and returned to the absorption vessel via pump P1, pipe 630 provided with throttling valve 632, and a ring of sprays 450, while the remainder is withdrawn through pipe 750, is admixed with make-up acid in pipe 754, is injected tangentially into a direct steam heater 756 and is then returned to the absorption vessel via pipe 758, valve 786, pump P1 of pipe 630 and sprays 450. Direct steam heater 756 may be replaced by a combined direct and indirect heater (Fig. 3, not shown).  A portion of the solution recycled from the crystallization stage may be returned direct to the solution in vessel 120 via pipe 640, valve 650 of indirect steam heater 788.  An overflow pipe 540 recycles solution in the absorption vessel via a tar skimmer, a mother liquor storage tank, pump P2 and spray 520.  Instead of withdrawing solution from the absorption vessel by means of overflow 540 a third stream of solution may be withdrawn from the crystallization bowl (Fig. 4, not shown) and passed through the tar skimmer &c.  The ammonia containing gas enters the absorption vessel at inlet 260, passes through an annular space, around an inner liquid separation cylinder 200, wherein it is contacted with solution from sprays 450, passes up a vertical passage 280 wherein it is contacted with solution from spray 520 and then passes tangentially into the upper part of cylinder 200 wherein entrained liquid is separated, whereafter it passes out of outlet pipe 230.
Patent GB-207990-A (GB)
Title: Improvements in or relating to bearings for rotatable shafts, axles and the like
IPC: B61F17/02
Filed: 1922-11-21
Abstract: 207,990. Meakin, G. H. Nov. 21, 1922. Lubricant conveyed by mechanical means. -A bearing for shafts, vehicle axles, &c. is lubricated bv a loose ring 10 which surrounds the axle 14 and dips into lubricant in a channel 6 communicating, by notches 8 in webs 9, with lubricant chambers 7. The notches 8 are covered by a removable lower brass 5 pressing on oil-soaked waste in the chambers 7 and having a hole 16 so that lubricant can return to the chamber 6. A groove 15 may be formed in the bracket 4 to receive oil carried along the shaft.
Patent GB-162712-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: G05G1/46
Filed: 1919-12-19
Abstract: 162,712. Brown, J. B. Dec. 19, 1919. Pedal levers, mounting. -In an adjustable throttle pedal-control gear the pivot of the pedal is carried on an arm which m a y b rotated and clamped in any position while the pedal may be adjusted relatively to its spindle. The spindle E is carried on the arm F, which may be rotated as required and held firmly in position by an arrangement of recessed discs in which a locking ball fits. An arm D on the spindle is connected by a rod C to the valve, while the pedal P is clamped to the spindle in any position by means of a split ring R.
Patent GB-1002551-A (GB)
Title: Improvements in or relating to disc brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D55/2255
Filed: 1961-09-05
Abstract: 1,002,551. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Aug. 2, 1962 [Sept. 5, 1961], No. 31868/61. Heading F2E. A disc brake comprises a brake disc 10 rotating with a wheel 13 to be braked, pads of friction material 37, 38 adapted to engage opposite surfaces of the disc, operating means 33 for applying pads to the disc and a support member 15 including a disc-like portion covering one side of the brake disc 10 to protect the latter from water and dirt thrown up from the road surface; the support member 15 being cut away to leave outside the periphery of the support member a substantially segmental area of the brake disc wherein the friction pads and operating means are accommodated. The support member is adapted to be secured to a fixed part of the wheel mounting and the friction pads 37, 38 are mounted between parts of a floating member 24 pivoted at 28 to a flat surface of the supporting member 15 and carrying the operating means in the form of a fluid pressure motor cylinder 33 and piston 32 acting on one of the pads 38 and the reaction in which acts through the floating member 24 on the other pad. The braking torque, when brake is applied is transmitted from the pad 38 directly to the support member 15 and from the pad 37 to the floating member 24 and thence to the support member 15 through the pivot pin 28. The friction pads 37 and 38 are shown in Fig. 3 as being wedgeshaped. As the friction pads wear the floating member 24 swings clockwise about its pivot 28 due to the pad 37 becoming thinner and therefore the backing plates approach positions of alignment with the disc and the pads approach a uniform thickness as the pads wear. Reference has been directed by the Comptroller to Specification 976,649.
Patent GB-936387-A (GB)
Title: Improvements in or relating to warning systems
IPC: G08B7/06
Filed: 1959-09-19
Abstract: 936,387. Operating single-indication receivers. C. C. NICHOLSON. March 8, 1960 [Sept. 19, 1959], No. 31980/59. Class 118. [Also in Group XXXIX] An electric light bulb 6 is connected in series with an electromagnetically-operated audible calling or alarm device, such as the bell of a telephone set 3 or a door bell 4, so that the bulb 6 will flash on the operation of the calling or alarm device, the bulb being mounted in or on sound-reproducing equipment, such as a television receiver 7.
Patent GB-160541-A (GB)
Title: Improvements in pneumatic tyred wheels
IPC: B60C19/00
Filed: 1919-12-20
Abstract: 160,541. Smith, R. T. Dec. 20, 1919. Tyre attachments to rims; tyres with rims enclosing air tubes or chambers; jackets and covers.- The wheel rim is made in separable parts a, b which may be integral with the discs forming the body of the wheel, and which together form an annular channel having seatings c for the edges of the tyre e and a seating for the air tube d, the parts being held together by transverse bolts g passing through the rim flanges, the tyre edges, and tubular sleeves on the airtube. In the construction illustrated in Fig. 1, the inner part d<2> of the air tube lies in a. depression provided in the rim between the seatings c, and rests on a distance ring i preferably of aluminium between the rim parts. The bolts may be hollow. Fig. 3 shows a modification in which the seatings for the tyre and air tube are provided by the flat bottom of the rim. A rubber ring i supported on a steel ring j is interposed between the rim parts. The tyre may be provided with side pieces e<3> and a projecting part e<4> which will prevent the entire collapse of the tyre in the event of the deflation cf the air-tube.
Patent GB-478121-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/00
Filed: 1936-05-11
Abstract: 478,121. Cathode-ray tubes. ZEITLINE, V., ZEITLINE, A., and KLIATCHKO, V. May 11, 1936, No. 32043/37. Convention date, May 9, 1935. Divided out of 476,865. [Class 39 (i)] [Also in Group XX] A cathode-ray tube is provided with a screen having fluorescent and photosensitive properties, a control electrode being mounted inside the tube for controlling the fluorescent light produced when the tube is operating in a television receiver, and an output electrode being disposed inside or outside the tube for television signals, produced when the screen acts as the photosensitive layer in a television transmitter. The screen may be formed of a material which is both fluorescent and photosensitive, or a mixture of fluorescent and photosensitive materials may be used. When the tube is operating as a transmitter, a luminous image is projected on to the screen p, f, which is scanned by the beam, whereby the output electrode e receives impulses which are transmitted to a line l<1> through switches s<1>, t<1> and an amplifier Am. When the tube operates as a receiver, impulses from the line l<1> are transmitted to the control electrode g through the switches s<2>, t<2>. Specification 476,865 is referred to.
Patent GB-306985-A (GB)
Title: A new or improved reciprocating pump
IPC: F04B7/06
Filed: 1927-11-30
Abstract: 306,985. Bennett, E. A. Nov. 30, 1927. Pumps with reciprocating and rotating pistons. -A double-acting pump comprises a cylinder 1 in which a, rotating piston 9 is reciprocated by a fixed pin 12 engaging a cam groove 11 attached to the piston, the piston and its rod 5 being slidably mounted. Two sets of spiral grooves 20 - - 23 are arranged in the periphery of the piston, the grooves 20, 22 being connected to one end of the cylinder by passages 14, 15 in the piston, and the grooves 23, 21 to the other end by passages 18, 19 in the piston. During the stroke towards the left, the liquid in the left end of the cylinder is delivered through the passage 14, groove 20, and port 7, while liquid is drawn into the right end through the port 8, groove 23, and passage 18. During the stroke towards the right, liquid in the right end of the cylinder is delivered through the passage 19, groove 21, and port 7, while liquid is drawn into the left end through the port 8, groove 22, and passage 15. During each stroke, the piston rotates half a revolution. In another form, there is a cam on each end of the piston engaging a fixed pin at each end of the cylinder. In the form shown in Fig. 4, the ends of the cylinder are connected to the inlet and delivery ports 8, 7 by passages 14, 18, and chambers 24, 25 in the piston.
Patent GB-1291297-A (GB)
Title: Mixer valve for mixing liquids in flow in proportionate quantities
Inventor: AUGER PETER WILLIAM
IPC: F16K11/085
Filed: 1970-07-02
Abstract: 1291297 Valves P W AUGER 14 May 1971 [2 July 1970] 32227/70 Heading F2V A mixer tap 10 comprises a body 11 having a cold water inlet 13, a hot water inlet 14, and a water outlet 15, the two inlets and the one outlet communicating with a hollow cylindrical bore 12 formed in the body. Control of flow is achieved by means of a hollow spool 16 which is rotatable within the body bore and which has oppositely tapering slots 17 and 18 designed to register with the inlet ports 13 and 14 and a central slot 19 designed to register with the outlet port 15. In dependance upon the relative dispositions of the spool and body, inlets 13 and 14 registers with the spool interior via slots 17 and 18, respectively, and the spool interior registers with the outlet 15 via slot 19. On rotation of the spool in a given direction one of the inlet ports 13 and 14 is progressively opened whilst the other is progressively closed. Sealing members 20, 21, carried on the spool, serve, in the closed state of the tap, to obturate inlet 13 and outlet 15. A further sealing member may be provided to seal inlet 14 also. The spool is rotatable by a spindle 24 co-operating with a slot 25 in the spool.
Patent GB-1475372-A (GB)
Title: Method for the automatic growth of monocrystals
IPC: C30B15/26
Filed: 1974-07-22
Abstract: 1475372 Automatic growth of mono-crystals LICENTIA PATENT VERWALTUNGS GmbH 22 July 1974 [21 July 1973] 32369/74 Heading BIS A method for automatic drawing of monocrystals from a melt comprises measuring the lowering of the surface of the melt with respect to time and automatically controlling the drawing parameters in dependance on this measurement and on the desired crystal profile. As shown in Fig. 1 a crystal 1 is drawn upwards from a melt 2 in a crucible 3, the height of the upper surface 4 of the melt 2 being continuously measured by means of a laser beam 5 reflected at the melt surface. The path length of the laser beam between the melt surface and a beam divider is part of a Michelson two beam interferometer. The light source comprises a He-Ne laser 6 and, a beam diverter 7, which breaks up the beam coming from the laser into a measuring beam and a reference beam. After the reflection of the measuring beam at the melt surface and of the reference beam at a level 9 both beams are superimposed by means of a beam divider and interference phenomena result. When these optical path lengths change on lowering of the melt surface periodic interference fluctuations occur which are measured by a photo-electric device 8 which controls a regulator (not shown) which controls the calorific power fed to the melt and/or the drawing speed of the crystal so that a chronologically linear lowering of the melt surface is set up which leads to the growth of a constant diameter crystal.
Patent GB-267249-A (GB)
Title: Improvements in or relating to the control of electricall-operated railway points
IPC: B61L21/06
Filed: 1925-12-22
Abstract: 267,249. Carter, P. E., and Connell, R. Dec. 22, 1925. Electromagnetic switches.-An indication selector described for use in a railway points operating system comprises a frame 52 supporting cores with selectively energized windings 53, 54 and an armature 55 pivoted at 56. The lower end of the armature is acted on by compression springs 61 which serve to hold the armature in its attracted position towards coil 53 or 54 and also to throw over the armature when it has been moved past its central position. The upper end of the armature carries contacts 66 adapted to brush along and maintain contact with fixed contacts 68, and connected with parallel insulated strips 62 carried by the armature and co-operating with fixed contacts 71. The coils are of high resistance, say 250 ohms.