baber/WOPTO huggingface dataset:
Patent GB-218544-A (GB)
Title: Improvements in processes and apparatus for concentrating latex or similar materials
IPC: B29B13/06
Filed: 1923-11-05
Abstract: 218,544. General Rubber Co., (Assignees of Gibbons, W. A., and Shepard, M. G.). July 11, 1923, [Convention date]. Bulk evaporators.-Rubber latex or similar liquid is concentrated in an open flat pan 5 supported in a water jacket 1 which is heated by injection of steam through a pipe 4. Gases drawn from a furnace by a fan 25 and mixed with air admitted by a damper 27 are discharged over the surface of the latex through a radial outlet 24. A rotary agitator 9, comprising two short arms 11 and two long arms reaching almost to the wall of the pan 5, is adjusted vertically by a lever 13 so as to scrape the surface of the liquid. Ammonia to prevent coagulation may be supplied from a container 28 by a pipe 29. Latex may be concentrated to about 82 per cent strength without coagulation, by heating the water bath to 90‹ C. at the commencement, lowering the temperature when the concentration increases, and using heated gases at a temperature of 80-90‹ C.
Patent GB-263977-A (GB)
Title: Improvements in dredging machines
IPC: H04L15/26
Filed: 1925-11-04
Abstract: 263,977. Bos, A. Nov. 4, 1925. Fixed bucket conveyers.-The buckets 2 of a dredging-machine are provided with plates or grids 4 which lie in the bottom and are mechanically raised to loosen the sludge so that it may be readily discharged when the buckets are inverted. The plate 4 is connected by a short piece of chain 5 to the bottom of a bucket 2 and by another chain 6 to the outside of the preceding bucket ,the chain 6 being of such length. that while the bucket is rising, the plate lies at the bottom thereof; the tilting of the preceding bucket at the top of its upward travel causes the plate 4 to be drawn up by the chain 6 thus loosening the sludge so that it falls out of the bucket when inverted.
Patent GB-626491-A (GB)
Title: Improvements in or relating to the production of acid calcium phosphates and of calcium nitrate from raw phosphate and nitric acid
IPC: C05B11/06
Filed: 1946-09-16
Abstract: Relates to a cyclic process wherein raw phosphate and nitric acid are added periodically to a circulating mother liquor, and corresponding amounts of mono- and dicalcium phosphate and calcium nitrate are periodically withdrawn.  Thus, raw phosphate may be mixed with nitric acid, and the mixture heated to 50 DEG  C. and then to the boiling point; dicalcium phosphate depositing is separated, and nitric acid is added to the mother liquor, which is cooled to 15 DEG  C.  Calcium nitrate tetrahydrate crystallizes, and the cycle is completed by adding raw phosphate and nitric acid to the mother liquor.  Examples specifying other operating temperatures are given.  If desired, all of the nitric acid used may be added to the liquor immediately after separation of the crystallized calcium nitrate.  The liquors to be heated may be circulated in countercurrent heat exchange with those to be cooled.  Phase equilibria diagrams are given.
Patent GB-1138925-A (GB)
Title: Improvements in or relating to automatic telecommunication exchanges
Inventor: BROWN COLIN ROY
IPC: H04Q3/54
Filed: 1967-06-16
Abstract: 1,138,925. Automatic exchanges. STANDARD TELEPHONES & CABLES Ltd. 16 June, 1967, No. 27787/67. Heading H4K. To divert calls at the exchange intended for a certain subscriber (the transferor) to a predetermined other subscriber (the transferee), the transferor dials into the exchange from his own line a transfer request code plus the coded identity of the transferee. From the identity of the calling transferor and the coded identity of the transferee, the transferee's full identity is obtained via a decoder addressing a common address store. The state of the transferee's line is then ascertained as to whether it can accept transferred calls. If not the transferor receives number unobtainable tone, otherwise the coded identity of the transferee is put into a store position permanently allocated to the transferor who then receives interrupted dial tone as an indication that the transfer facility has been set up and receives it each time he makes a call until the transfer facility is cancelled. For all incoming calls the last mentioned store is interrogated to ascertain whether the wanted line is in transfer. If so, the coded identity of the transferee is extracted and with the full identity of the transferor enables the full identity of the transferee to be obtained from the common address store to whom the call is then routed. If the transferee is in another exchange his identity may be sent back to the originating exchange or the call extended from the exchange already reached. To cancel the facility the transferor dials a cancel code.
Patent GB-1063543-A (GB)
Title: Method of forming thin-walled cast iron parts
IPC: B22D18/08
Filed: 1965-07-01
Abstract: 1,063,543. Casting - machines; moulds. AMERICAN RADIATOR & STANDARD SANITARY CORPORATION. July 1, 1965 [July 2, 1964], No. 28019/65. Heading B3F. Iron articles (such as baths and sinks) are cast by raising a quantity of molten iron through a heated tube (6), Fig. 1 (not shown) from a closed furnace (14) into a female drag (5), by raising the pressure of a gas such as N, Ar, He, Cl or CO 2  in the furnace; a male cope (3) may already be in the closed position (4) or it may be slowly closed down into that position from a location just above the level (1) of metal in the drag, being already at that location or lowered quickly to it from a high position (2) reached upon completion of a previous cycle. Before removing the cope from the drag, the furnace pressure is lowered to its previous value. The mould parts (3, 5) are pre-heated, insulated and cooled by passing steam, air and water respectively through passages (13). The cope is moved by an hydraulic piston controlled by an electric circuit, Figs. 2A, 2B (not shown). The casting may be ejected by pins or removed by a vacuum holder. Mould-lining materials.-The die may be coated with lampblack or with a coating comprising a highly conductive and ductile material as a base layer, a refractory metal oxide and a plasma-sprayed overlayer of refractory oxide.
Patent GB-1477516-A (GB)
Title: Coating apparatus
IPC: B05B13/02
Filed: 1974-06-25
Abstract: 1477516 Coating apparatus MITSUI SHIPBUILDING & ENG CO Ltd 25 June 1974 [28 June 1973] 28084/74 Heading B2L Bottle coating apparatus comprises pairs of opposing resiliently biassed rotatable grippers 3, 4 movable along respective parallel guide members 2 to a coating position, adjacent pairs of grippers being interconnected by means such as chain links 17 to predetermine the spacing of bottles 1 being coated. As shown the grippers 3, 4 are mounted on spindles 5, 6 carried by housing 7 having rollers 9 engaging trackways of the guides 2. A sprocket 10 engages a length of chain 11 to rotate the spindle 5 hence a bottle at the coating position. The spindles may be horizontal, vertical or sloping. The coating may be powder or resin deposited by a spray gun or electrostatic device and the bottles may be heated before coating and entering a fusing unit.
Patent GB-339969-A (GB)
Title: Improvements in and relating to the production of mixtures suitable for use as fertilisers
IPC: C05B11/06
Filed: 1929-09-16
Abstract: 339,969. Odda Smelteverk Aktieselskabet, and Johnson, E. Nov. 24, 1928, [Convention date]. Addition to 339,340. Manures. - Compound fertilizers are obtained in processes in which the mother liquor, obtained after the crystallization of calcium nitrate from a solution of phosphate rock in nitric acid as described in the parent Specification, is neutralized with or cause to react with ammonia, urea, cyanimide or cyanamide salts such as calcium cyanamide, mineral phosphates, compounds of ammonia and carbonic acid, alkali carbonates and the like, or with a plurality of these substances, so that after the removal of water from the product, dry stable fertilizing substances are obtained. In addition, one or more further compounds, for example potassium or ammonium salts such as the sulphate. nitrate, chloride or phosphate, urea, or urea salts may be added in the solid, dissolved or molten state before, during or after the reaction of the substances previously referred to. The lime content of the mother liquor may be removed prior to the neutralization or reaction by precipitation with sulphuric acid. ammonium sulphate, alkali sulphates, alkali bisulphate or the like, and filtration. The mother liquor may be prepared containing ,as much nitric acid as is desired in the final product as nitrate. The reaction or neutralization may be carried out under vacuum to utilize more efficiently the heat of reaction developed for evaporating the water present. The apparatus employed in handling the mother liquor may be constructed of or lined with ebonite or a composition comprising asbestos and the material known under the Registered Trade Mark " Bakelite."
Patent GB-1276498-A (GB)
Title: Improvements in and relating to ear defenders
Inventor: GORMAN ANTHONY GRAHAM
IPC: A61F11/14
Filed: 1968-08-01
Abstract: 1276498 Ear protectors AMPLIVOX Ltd 22 July 1969 [1 Aug 1968 4 June 1969] 36842/68 Heading A5R [Also in Division H4] An ear defender, which attenuates at least higher frequency components of sound (e.g. above 3,000 Hz) passing to the wearer's ear, includes a rigid shell for placing over the wearer's ear, the shell having a passage for sound waves and acoustic impedance between the outside of the shell and the passage. An acoustic valve is operable selectively to open or close the passage. The rigid shell 1, which incorporates a telephone receiver 11, has a seal 2 consisting of a tube filled with liquid or plastics foam. Ports 3 are provided which may be aligned with ports 5 in a rotatable disc 4 covered with a felt or foamed plastics pad 7 constituting an acoustic resistance. A low pass filter is constituted by the acoustic resistance of the pad 7 and the ports 3, 5 and the capacitance of the air chamber. The pad 7 may be protected by a mesh grill 8 or a thin polyethylene disc. If a polyethylene disc is mounted in non-taut manner explosive loud noises make it taut and it acts as a substantial attenuating impedance. An outer housing 9 holds the parts together and provides a grip for rotation of the valve elements. A spring 10 holds disc 4 and shell 1 in intimate contact. Alternatively, an additional air volume 13 (Fig. 5) and a stiff, relatively heavy diaphragm 14 are provided. A handle 15 (or knob) permits rotation of disc 4. Instead of being stiff and relatively heavy, the diaphragm 14 may be of sheet polyethylene mounted in non-taut manner to provide additional attenuation of explosive noises. The ear defender may be supported by a headband or incorporated in a protective helmet.
Patent GB-616931-A (GB)
Title: Composing stick
IPC: B41B1/26
Filed: 1946-09-23
Abstract: 616,931. Composing - stick. EICKHOFF, A. O. Sept. 23, 1946, No. 28434. Convention date, Sept. 25, 1945. [Class 100(iii)] [Also in Group XXV] In a composing stick of the type in which the bar 1 constituting the stick and the slidable jaw 3 thereof are surrounded by a ring 4 on the inside of which there is rotatably mounted a clamping member 10, operable from outside the ring and wedged between the jaw and the ring, a block 7 is removably mounted in the jaw and adapted to receive the pressure from the clamping member. The clamping member comprises a handle 9 and is pivoted on a trunnion 11 engaging in the block, which is fitted in an oval recess 6, the member and block having interacting helicoidal cam surfaces 12, whereby on rotation of the handle the member 10 presses against the ring to clamp the bar and jaw together. To counteract wear of the member 10, the position of the block is adjustable by means of shims 8 removably fitted at the bottom of the recess. The ring is slidable with the jaw, being held thereto by projections 5.
Patent GB-1235805-A (GB)
Title: Condensation products suitable as curing agents for epoxy resins
IPC: C08G59/54
Filed: 1969-06-05
Abstract: 1,235,805. Amine-amide condensation products. INVENTA FUR FORSCHUNG UND PATENTVERWERTUNG A.G. 5 June, 1969 [5 June, 1968], No. 28481/69. Heading C2C. [Also in Division C3] Compounds of the general formula (where R 1  is a lower alkyl group of from one to four carbon atoms, R 2  is a divalent aliphatic, cycloaliphatic or aralkylene radical which may contain ether, thioether or secondary or tertiary amino linkages and n is from 2-12) may be prepared by reacting at least two molar proportions of an amine NH 2 R 2 .NH 2  with one molar proportion of an N-alkylaminocarboxylic acid R 1 NH.(CH 2 ) n .COOH at 170-250 C. in an inert atmosphere, and thereafter distilling off excess amine under reduced pressure. Specified amines include 1,2-bis-(3-aminopropoxy) ethane, 1,3- and 1,4 - bis - (3 - aminopropoxy) butane, 1,6- bis - (3 - aminopropoxy) hexane, 4,4<SP>1</SP> - diaminodibutyl ether, bis-(2-aminoethyl) sulphide, N,N- bis- (3 - aminopropyl) methylamine, triethylene tetramine, 1,6 - hexamethylene diamine, 3,3,5- trimethyl - 5 - aminomethyl - cyclohexylamine, o-, in-, and p-xylylene diamines and 2,2,4-trimethyl hexamethylenediamine, and specified acids include N-methyl-, ethyl-, propyl-, isopropyl, and butyl-derivatives of co-aminocaproic, -capric, -caprylic, -undecanoic and -lauric acids. The condensates are curing agents for epoxy resins (see Division C3).
Patent GB-286349-A (GB)
Abstract: 286,349. Wright, G. M., and Smith, S. B. Nov. 30, 1926. Directive signalling.-A directional installation, particularly designed for aircraft " homing " flight, comprises two fixed coils 1, 2 and 3, 4 mutually arranged at an angle other than a rightangle, and equally inclined to the fore and aft direction AB of the machine. A switch arrangement shown in Fig. 3 permits either of the coils to be thrown into circuit with a receiver P. The polar diagram of coil 1, 2 is shown at 5 - - 8, whilst that of the coil 3, 4 corresponds to 9 - - 12. When equal signal strength is secured in the phones, the aviator must be flying either in the direction AB or CD. To remove this ambiguity, a third position of the switch allows the coils 1, 2 and 3, 4 to be inserted simultaneously and in series across the receiver, a condenser T and inductance M maintaining the circuits in tune. Under these circumstances, the resultant polar diagram is 13 - - 16 and no signals will be received if the course is in the direction AB.
Patent GB-630207-A (GB)
Title: Improvements in or relating to building construcition
IPC: E04B1/21
Filed: 1946-09-25
Abstract: 630,207. Columns; roofs. HAYES, H. G. Sept. 25, 1946, No. 28698. [Class 20(iv)]  Reinforced concrete beams or trusses are supported by stanchions by means of pins passing vertically through loops or eyes formed on reinforcing rods projecting from the beams &c. and secured in orifices in the stanchions by cement &c. grouting. Ends 13 of horizontal beams 12 are adapted to rest on the upper horizontal ends 14 of posts 11 and a pin 16 secured in the posts passes through a loop or eye 15 projecting from the beams and e.g. formed, by a tensioned reinforcing rod. The remaining space on the end surface of the post may be filled by embellishers 18 and cement grouting 12. After placing floor slabs 19 and wall plates on the beams an upper post is secured to the pin and space remaining in the plane of the slabs is filled by an embellisher. Auxiliary posts 25 may support the beams medially of their ends, pins 27 passing through holes 28 in the beams and into recesses 29 in the posts.
Patent GB-1389270-A (GB)
Title: Screw extruder for ceramic materials
IPC: B28B3/22
Filed: 1972-06-20
Abstract: 1389270 Extruder bearing KERAMIKMASCHINEN mbH & CO KG GES FUR 20 June 1972 [21 June 1971] 28704/72 Heading B5A [Also in Divisions B8 and B1] A screw for the extrusion of ceramic materials comprises a number of screw thread sections 6, which are axially slidably assembled on a shaft 5<SP>1</SP> for rotation therewith and to transmit the axially directed extrusion thrust on the sections, independently of the shaft 5<SP>1</SP> and from an upstream thread section 6<SP>1</SP> to thrust bearing 11. The thrust is transmitted by a bush 10 surrounding a shaft portion 5 upstream of the sections 6. The thrust is transmitted from the bearing 11 to a housing 14 within which, upstream of the bearing 11, is included gearing for rotating the shaft 5 at a keying groove downstream of a further bearing. The bush 10 is an interference fit on the shaft 5, and the housing 14 is provided with a further bearing, and lubrication channels as shown.
Patent GB-1277454-A (GB)
Title: Improvements in or relating to dispensing valves
IPC: B65D83/14
Filed: 1969-06-06
Abstract: 1277454 Mixing in tortuous passages DART INDUSTRIES Inc 6 June 1969 [6 June 1968] 28831/69 Heading B1C [Also in Divisions F1 and F2] A self-purging valve, which is capable of dispensing two different pressurised fluids and which is particularly suitable for dispensing antiperspirants, starches, paint sprays and hot foam shave lather, comprises a main housing portion 10 which is retained by a portion 24 of a cap of a main container, (14, Fig. 1, not shown), a first fluid inlet passage 54 opening into a first seat 52, a second fluid inlet passage 72 opening directly into the interior of the housing, a resilient washer 32 forming a second seat 50, and first and second valve members 38 and 40 respectively, the two valve members being biased by a spring 46 into engagement with their respective seats. The outflow passage from the housing is formed in the second valve member 50 and is comprised by a plurality of passages 62 and a passage 60 axially extending along a stem 34 of the second valve member 40, the outflow passage being closed from the housing interior as long as the second valve member is in engagement with its seat 50. In operation, stem 34 is manually tilted until a projection 68 on the second valve member 40 just engages the wall 66 of a recess 64 in the first valve member, this permitting flow of the second fluid to take place from passage 72 into the axial passage 60, (Fig. 4, not shown). Further tilting of the stem causes consequential tilting of the first valve member 38 with respect to it seat and hence permits the first fluid to enter the housing wherein it mixes with the second fluid prior to entering the axial outlet passage 60, (Fig. 5, not shown). Upon decreasing the degree of tilting of the stem 60, the first valve member 38 is seated prior to the second valve member 40 so permitting the housing to be purged by the second fluid entering via passage 72. In use, the first inlet 54 may be connected to a collapsible bag containing the first fluid and being disposed within the main container which communicates at all times with passage 72 and which contains the second fluid, such second fluid being itself pressurised and so pressurising the first fluid. Alternatively, the main container may contain both a liquid and a vapour phase with the first inlet 54 being connected to a dip tube which extends to the bottom of the liquid phase, (Fig. 14 not shown). In a modification (Figs. 7 to 15, not shown) the arrangement is similar to that described above except that only the second valve member is tiltable with the first valve member being displaceable axially off the housing upon sufficient tilting of the second valve member.
Patent GB-607133-A (GB)
Title: Improvements in or relating to bags, hold-alls and similar carriers
IPC: A45C7/00
Filed: 1945-10-31
Abstract: 607,133. Bags, rucksacks &c. PLATTS, C. M. Oct. 31, 1945, No. 28908. [Class 133] In a bag, hold-all, hand case or rucksack constructed to have walls of a predetermined shape and size, some of the walls are made of non - expansible material and the remaining wall or walls made wholly or in part of expansible material consisting of textile material woven with elastic threads included in weft or warp, to allow the normal holding capacity of the carrier to be increased. In a hold-all, as shown in Fig. 2, the side walls 2 are of the expansible material and the end walls 3 and top 4 which may be in one piece and bottom 5 are of non-stretchable material, e.g. leather, imitation leather or plastic. A slit 6 closed by a sliding fastener 7 may be provided on the top part 4 and handles 8 secured by D rings 9 to straps 10 secured to bottom wall 5 permit side walls 2 to stretch freely. In a modification, the holdall has the end, top and bottom walls 3, 4 and 5 of expansible, and the other walls of non-expansible, material. In a dressing or like hand case, as shown in Fig. 5, the top 13 may be made wholly or in part of the expansible material or the expansible material may be restricted to a marginal part 13a with a non-stretchable reinforcement 13b attached to the underside or the centre panel may be of non-stretchable material with the expansible margin material secured thereto. In a rucksack, Fig. 6 (not shown), the flap portion 18 and side walls 20 are of expansible material and the rear and bottom walls 15, 16 of non-stretchable material.
Patent GB-719123-A (GB)
Title: Improvements in and relating to elastic couplings, more particularly for separate axle drives of rail vehicles
IPC: F16D3/62
Filed: 1952-11-17
Abstract: 719,123. Universal joints. SCHWEIZERISCHE LOKOMOTIV - UND MASCHINENFABRIK. Nov. 17, 1952 [Dec. 17, 1951], No. 28937/52. Class 80 (2) [Also in Group XXXI] A universal joint, particularly for the axle drives of rail vehicles, comprises at least six (as shown, eight) rubber members 14 alternately connected to arms 17a, 18 on the two shafts of the joint and is characterized by the arms being arranged radially to lie within a disc-shaped space defined by the extremities of the rubber members on rotation of the coupling, so that although lying in separate parallel planes, normally perpendicular to the main axis of the joint and without the arms of one shaft projecting between the arms of the other shaft, together the two sets of arms do not require in the axial direction a constructional length greater than that of the rubber members. The rubber members 14 are bonded to plates 15, as shown in Fig. 3 which is an arcuate section along the line III ... III of Fig. 1, the plates being connected alternately by screw threaded means to the arms 17a, 18 of the two shafts. The crosssection of the rubber members 14 is, in the form shown, rectangular, but may alternatively be circular, elliptical or the like. As described applied to the axle drive of a rail vehicle, an electric motor has a hollow drive shaft connected by a universal joint according to the invention to one end of a shaft within it, the other end of this shaft being connected by a second, similar, universal joint to a gear in a train transmitting drive to the vehicle axle.
Patent GB-1456462-A (GB)
Title: Pyrolytic graphite articles
IPC: H01J9/14
Filed: 1974-06-29
Abstract: 1456462 Blasting ENGLISH ELECTRIC VALVE CO Ltd 11 April 1975 [29 June 1974] 28998/74 Heading B3D [Also in Division C1] A perforate article is prepared from a laminar blank of pyrolytic graphite by a process which includes the steps of machining or abrading selected locations of the blank to produce perforations therein, and thereafter depositing a layer of pyrolytic graphite thereon. The abrasion process is preferably one employing shot abrasion techniques, and is used, for example, to prepare the perforate mesh electrodes (see Fig. 1). The thickness of the layer of secondarily deposited graphite is preferably less than that of the laminar blank, and may be comparable to the size of the particles used in the abrasion process.