baber/WOPTO huggingface dataset:
Patent GB-124676-A (GB)
Title: Improvements in or relating to Digesters for use in the Manufacture of Cellulose and like Operations.
Inventor: SCHAUFFELBERGER EMIL
IPC: D21C7/14
Filed: 1918-09-27
Abstract: 124,676. Schauffelberger, E. Sept. 27, 1918. Digesters. -- A digester for making cellulose from bamboo, esparto, wood pulp, &c. or for similar operations is provided with a circulating- device so arranged that the circulation of the liquor in the digester is for the most part in an upw a r d direction, while there is also a downward circulation in the uppermost part of tha digester. Fig. 1 shows a digester a to which the liquor is admitted by a pipe d connected to a pump e, the suction side of which is connected by a pipe f to a distributor g near the top of the digester. A downward flow is provided above the distributor g by admitting liquor at the top of a pipe h. Steam or other heating-medium is introduced at i. In a modification, the liquor is heated in an external heater, and a separator for removing scum is introduced into the system.
Patent GB-562957-A (GB)
Title: Improvements in or relating to the manufacture of rubber
Filed: 1942-11-09
Abstract: A rubber extender is made by heating to 100 to 200 DEG  C. a mixture of factice, or the constituents of factice, viz: vegetable oil and sulphur, with a high-boiling, mainly naphthenic, aromatic distillate from petroleum oil by-products.  Mineral rubber or paraffin wax may also be incorporated in the rubber mix.  The factice may be "brown substitute" reduced to crumb and intimately mixed with an equal quantity of distillate; the extender may replace up to 40 per cent of the rubber.
Patent GB-1407136-A (GB)
Title: System for reproducing and recording a plurality of  colour originals
IPC: H04N1/48
Filed: 1973-04-03
Abstract: 1407136 Colour facsimile DAINIPPON SCREEN SEIZO KK 3 April 1973 15813/73 Heading H4F To enable a plurality of colour originals 2, 3, 4, 5, Fig. 1, requiring different reproduction conditions-e.g. colour corrections-to be mounted on the same facsimile apparatus and to be reproduced during one continuous scan, the corresponding reproduction conditions are stored or set in the apparatus and the condition instantly used selected in dependance on the detected position of the scanning beam. If originals 2 and 4 require a different reproduction characteristic from originals 3 and 5, the position of the scanning beam may be detected by having, at the end of the drum, consecutive halves of the circumference with different reflectivities, a photodetector 10, Fig. 3, receiving the reflected light from source 9 and passing its output as a control signal to, e.g. a relay 18, Fig. 4. In Fig. 4 the red, green and blue scan outputs 12a, 12b, 12c undergo the two different colour corrections (reproduction conditions) in circuit 14 and the correct corrected output is selected from output 16 or 17 by relay contact 20. Circuit 15 performs two further corrections and the correct one for the original being scanned is similarly selected by relay contact 23. When N originals are arranged around the circumference of the drum, the switch-over of reproduction conditions may be controlled by a photodetector receiving light from a source through N slots in a disc rotating with the drum (Fig. 7 (not shown)). More exact information as to the circumferential position of the scanning beam can be supplied using two drums rotating with the original drum, one drum having a single slit passing light from a source to a detector, once per revolution, and the other drum having a large number of slits giving a fine indication of the drums rotation. The pulsed outputs of the detectors are then analysed by a counter for producing the condition switch-over signals.
Patent GB-1306831-A (GB)
Title: Connections for insulated pipes
IPC: F16L59/10
Filed: 1970-04-03
Abstract: 1306831 Pipe connections; pipes INDUSTRIELE ONDERNEMING WAVIN NV 3 April 1970 [12 Feb 1970] 15819/70 Headings F2G and F2P A pipe 1, which is preferably of metal, has a plastics foam layer 3, preferably of polyurethane, and a fluid tight outer covering layer 10, 16, the foam layer 3 terminating before the ends of the pipe. The foam layer 3 may have a helical reinforcement 15 of glass tissues, polyester tissues or polythene foil. The outer covering layer 10 may be a helically wound strip of freshly extruded polyethylene, Fig. 1 (not shown), adjacent helices being overlapped and heat sealed by their own warmth and this layer 10 shrinks on cooling thereby compressing the foam layer 3. Alternatively a strip of polypropylene may be similarly wound and the helices joined by solvent welding, but there is little shrinkage of this layer 10. Alternatively the layer 10 may be a tubular foil of thermoplastic, such as polyethylene, which is pulled over the pipe 1 and the annular space filled with foam. As shown in Fig. 2 two outer covering layers, one of self curing rubber 10 and another of glass fibres impregnated with thermosetting resin 16 are used.  As shown in Fig. 4 such pipes 1 are connected by a weld 2 between the pipe ends 1a, applying a protective covering layer 5 which seals with the pipe ends and the outer covering layers 10, filling the space between the plastics foam layers  3 of each pipe with a plastics foam 3a which may be of the same or different composition, and covering the foam with a lining layer 12. As shown in Fig. 4 a finishing layer 11 is provided and elastic rings 7, 9 are used to seal the layer 5 with the pipe 1 and layer 10. The lining 12, preferably of P.V.C. or polyethylene may be heat shrinkable so that on sliding into place and heating, it compresses the foam 3a and clamps around the rings 13. In another embodiment, Fig. 3 (not shown), in which each pipe 1 has a single outer covering layer which extends down the slanting ends of the plastics foam 3 to the pipe ends, the protective covering layer is a sleeve (17) of wound glass fibres set in polyester or epoxy resin extending from the covered sloping surface of one foam plastics layer 3 across pipe weld 2 to the other covered sloping surface. The plastics foam layer of the pipe coupling 3a is formed by fitting two semicylindrical moulding shells across the pipe ends and filling the space with a foaming composition. Glass fibres are wound over the foam when set and then impregnated with resin and cured to give a lining layer (14) in the same position as the lining layer 12 shown in Fig. 4.
Patent GB-181958-A (GB)
Title: Improvements relating to variable speed driving gears
IPC: B62M25/00
Filed: 1921-06-08
Abstract: 181,958. Burman & Sons, Ltd., and Briggs, T. H. June 8, 1921. Variable-speed gearing of the kind comprising a pair of meshing gear and clutch members l, n, Fig. 1, slidable upon a main shaft a and a countershaft k respectively is operated by a lever q, Fig. 3, having a notched quadrant u engaged by a pivoted spring pawl v. The member l is splined on the driving-shaft a and is coupled by a flange o and groove p to the member n, which is loose on the shaft k. A bowl s on the lever q engages a groove t in the member l. A gear f, loose on the shaft a, meshes with a gear i connected by shaft or sleeved k to a gear h meshing with a gear b fast on the driven sleeve d of the gearing. In the position shown, the drive passes through the gears l, n, through clutch members 4, 5, to the shaft k, and gears h, b, yielding middle speed. Movement to the left effects a direct high-speed drive through clutch members z, c. Movement to the right effects the low speed, when the drive passes through clutch members m, g, gears f, i, the shaft k, and gears h, b.
Patent GB-853196-A (GB)
Title: Mixer for building materials
IPC: B28C5/06
Filed: 1959-05-08
Abstract: 853,196. Mixing. BRAITSCH. E., and BRAITSCH, I., [trading as IBA BAUBEDARF I BRAITSCH & CO. KOMM-GES.]. May 8, 1959 [May 13, 1958], No. 15887/59. Class 86 A mixer for building materials comprises a chamber 1 in which mixing is effected by a pump 19 which circulates the material in the chamber, and chambers 2, 3, for aggregate and binder respectively, on each side of the chamber 1, the chambers all being in line so that the materials may be supplied to the mixing chamber 1 by coaxial worms 6, 7. The worm 6 is carried by a shaft 14 and the worm 7 is on a sleeve 15 revolvable on the shaft 14 but connectible thereto by a coupling 16, 17. The side compartments 11, 12 are water tanks, so that the mixer may be loaded with the liquid and solid ingredients of a mix, and it may be mounted on a vehicle and driven by the vehicle engine. As shown, two pumps are provided, the pump 19 for circulating and the pump 21 for discharge, both pumps being mounted in a trough 18 into which the mixture gravitates. The pump 19 projects the material from a pipe 35 against a distributing cone 38, 37; and a branch 40 controlled by a valve 39 may be provided to project against a distributer 38, 42. The material is further mixed as it tumbles over ledges 43. The pump 21 discharges to the point of use through quick-coupling hoses 34. In use, water is run into the chamber 1 and circulated by the pump 19 whilst aggregate and binder is supplied by the worm 6, the worm 7 being inactive until the right hand compartments 2, 3 are empty. The coupling 16, 17 is then made operative and the aggregate and binder for the left hand compartments 2, 3 is added. If more water is required, this is added to the pump 19 at 33. In a modification, the discharge pump 21 is dispensed with, the cover 36 of the compartment 1 having a distributer cone 37 pivoted externally to the cover 36 to close a hole therein. When the cone 37 is swung back, a discharge hose may be connected to the pipe 35. In another modification, the discharge pump is connectible to an inverted distributer cone carried by the cover 36 so that it acts as a circulating pump. Each of the pumps is a centrifugal pump, the vanes being connected on each side of a disc carried by the shaft 27 or 28 which is journalled in ball bearings 44 and passes through seals 46 in the side walls 45 of the trough 18. The seals comprise felt washers alternating with metal spacing rings and a screw gland ring to apply pressure to the washers and rings through a conventional packing ring. The spaces between the washers and rings are supplied with grease under pressure to exclude the abrasive mix, which is further repelled from the seal by obliquely set vanes 47, a helical groove 62 in the shaft and a ring 63 with repelling vanes rotating against the inner end wall of the seal casing.
Patent GB-907364-A (GB)
Title: Comminuting device
Filed: 1960-05-06
Abstract: 907,364. Rectilinear-motion bearings. F.M.C. CORPORATION. May 6, 1960 [Nov. 9, 1959], No. 16090/60. Class 12 (1). [Also in Groups I and II] A screw 46, Fig. 8, and the inner surface of a nut 52 are provided with complementary helical groves 59, 60 in which balls 61 are positioned, the ends of a tube 62 engaging groove 59 to form a closed path for the balls. A ball-bearing shoe 14, Fig. 10, engaging a track 12 has balls 99 between inner and outer races 97, 98, the outer race 98 being partially cut away along part of its periphery to permit the balls to engage the track. Reference has been directed by the Comptroller to Specifications 661,443 and 765,409.
Patent GB-559637-A (GB)
Title: Improvements in hydraulic tipping-and tilting-gears for vehicle bodies
IPC: B60P1/16
Filed: 1942-11-14
Abstract: 559,637. Tipping vehicles. EDWARDS BROS. (TIPPERS), Ltd., EDGE, J. R., and COSGROVE, J. Nov. 14, 1942, No. 16142. [Class 108 (i)] A hydraulic tipping mechanism comprises a plurality of rams 20 arranged abreast and with their bases enclosed in a working liquid reservoir 10 mounted on the vehicle chassis by trunnions 11, 12, the ram cylinders 19 being mounted upon a base-plate 17, the duct 18 in which has at the end adjacent to the feedpipe 27 leading from the pump a one-way spring valve 28 for maintaining pressure in the ram cylinders should either of the pipes 27 or 26 be fractured. A manually-operated pressurerelease valve 29, such as described in Specification 495,585, is provided at the other end of the duct 18.
Patent GB-274051-A (GB)
Title: Improvements in or relating to the preparation of vegetable food
IPC: A23L2/46
Filed: 1927-06-17
Abstract: 274,051. Miles, E. H., and Reilly, G. July 8, 1926, [Convention date]. Addition to 256,765. Vegetable preparations. - An alimentary preparation consisting exclusively of vegetable material is made by mixing the juice of dietetic vegetable material, e.g. lettuce, cabbage, &c. with that of preservative vegetable material, e.g. carrots, parsnips, beets, heating till hydrolization of the sucrose is well advanced, and then concentrating, the heating being prolonged not more than about 1 hour at a temperature not exceeding about 80‹ C. Pieces of vegetable material may be added to the juice before concentration.
Patent GB-272954-A (GB)
Title: Improvements in or relating to piezo electric devices
IPC: G01R23/07
Filed: 1927-06-17
Abstract: 272,954. Telefunken Ges. f³r Drahtlose Telegraphie. June 18, 1926, [Convention date]. Piezo-electric crys tal units; thermionic valve circuits. - A piezo-electric crystal, employed for controlling or indicating the frequency of electromagnetic oscillations or for speed regulation, is adapted to be set into specific oscillation by the electromagnetic oscillations to be indicated and is connected in series with a rectifier, across the terminals of which is connected an indicator. As shown in Fig. 1 the piezo-electric crystal K is connected in series with a crystal or other detector D across a coil S2, which is energized through a coil S1 by the oscillations under examination. An indicator or other device J is connected in parallel with the detector D. Amplifiers enabling relays to be actuated may be provided. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification, Fig. 2 (Cancelled), in which the piezo-electric crystal K is situated in the grid circuit of an amplifier valve V having an indicator or other instrument J in its anode circuit. This subjectmatter does not appear in the Specification as accepted.
Patent GB-623982-A (GB)
Title: Improvements in and relating to microwave transmission systems
Filed: 1947-06-19
Abstract: 623,982. Generating high-frequency oscillations ; impedance networks. BRITISH THOMSON-HOUSTON CO., Ltd. June 19, 1947, No. 16235. Convention date, May 28, 1943. [Class 40 (v)] [Also in Group XL (b)] In a transmission system comprising a source of high-frequency oscillations 10, Fig. 1, (e.g. a cavity resonator), coupled by means of a concentric transmission line 12 to a second transmission line 13 connected to an aerial, load or other output circuit, the second transmission line is provided with a rotary tuning device 20, whereby the length of the line may be adjusted to tune the output circuit to the frequency of the oscillations. As shown in Fig. 2, the rotary tuning device comprises a circular metal member 22 having a semicircular groove 23 in its right-hand face. This member supports a rotatable member 26, having a similar semicircular groove 27 cooperating with the groove 23 to form a circular passage of circular cross-section. This passage has supported therein a wire 29 so that the passage and wire effectively form a coaxial transmission line. One end of the wire is provided with a connecting portion 42 extending through a plug 43 of insulating material. The other end is electrically connected by a metal ring to the grooves 23, 27. The sliding contact for adjusting the length of transmission line comprises a cylinder 46, a piston 47 and contact member 48, located in a hole in the movable member 26. The contact member 48 has a plurality of arms 50 for contacting the conductor 29. A retaining member 51 fastened to the rotatable member 26 by a screw 52 has a pair of openings 53 for engaging fingers 54 at the top of the cylinder 46.
Patent GB-561477-A (GB)
Title: Improvements in and relating to stocks and dies
IPC: B23G5/08
Filed: 1942-11-17
Abstract: 561,477. Stocks and dies. LANFRANCONI, F. A. Nov. 17, 1942, Nos. 16244/42 and 15818/43. [Class 83 (iii)] Dies are made of truncated triangular form and are mounted in stocks with corresponding abutments or depressions so that the torque is transmitted independently of the fixing or retaining devices. The clearance holes 3 for the swarf are formed adjacent to the truncations, the amount of which is such as to provide substantially uniform thickness of metal. One side of the die is provided with a groove 6 to coact with a retaining screw 13, for the stock 8, having a point in the form of a spring-loaded ball. The stock may be formed as a stamping with upturned lugs 9, 11, 12 or the stock may be cast. The die has a V-slot in. one apex and this receives a corresponding wedge 23 having a screwed stem 22 engaged for adjustment by a tapped stem 18 rotatable in the lug 11 and having a graduated head 19. A pin 21 coating with a groove 20 prevents axial movement of the stem. Adjustment of the wedges in conjunction with a corresponding movement of the screw 13 enables the die to be adjusted for size. In a modification the.slot is parallel-sided and coacts with interchangeable shims. For machine use the stock is made circular in form with external grooves for fixing, and the die 'may have four, five or more clearance holes.
Patent GB-989180-A (GB)
Title: Method of operating a hot-water space-heating system
IPC: F24D19/10
Filed: 1961-05-04
Abstract: 989,180. Heating buildings. M. CLAUSSEN, [trading as DANFOSS VED ING M. CLAUSSEN]. May 4, 1961 [May 4, 1960], No. 16256/61. Heading F4U. In a central heating system of the water circulation type, a thermostatic valve 7 responsive to room temperature is located in the return pipe of each radiator 6 and the main supply temperature is raised as the ambient temperature falls by a thermal element 14 operating a 3-way valve 1 to close a by-pass 13 round the boiler 1. The setting of valves 7 may be the same for all rooms or may vary from room to room.
Patent GB-787278-A (GB)
Title: Vehicle seat posts
Inventor: YEOMANS WALTER ALLEN
IPC: B60N3/02
Filed: 1955-06-07
Abstract: 787,278. Vehicle bodies. ACCLES & POLLOCK, Ltd. June 5, 1956 [June 7, 1955], No. 16288/55. Classes 103(4) and 108(1) The connection between a seat frame 4 in a vehicle and the post 7 extending to the roof comprises an externally - threaded socket 3 provided with an integral or separate abutment 5, and an internally threaded sleeve 6 which co-operate to compress a resilient ring 9 into the groove 8 in the post 7.
Patent GB-328827-A (GB)
Title: Improvements in rotary valves for internal combustion engines
IPC: F01L7/02
Filed: 1929-05-27
Abstract: 328,827. Vorel, F. May 27, 1929. Valves.-In a multicylinder engine, disc valves 14 adjacent the cylinders are constructed so that each controls the inlet and exhaust of two or more cylinders. In the arrangement shown, each valve works in connection with a pair of cylinders and is formed with two arcuate passages 22, 23 the ends of which communicate with ports 24, of which those pertaining to the passage 22 open at one side of the valve, to serve one of the cylinders, and those of the passage 23 at the other side of the valve to serve the adjacent cylinder. As the valve rotates, these passages co-operate with inclined inlet passages 25, exhaust passages 26, and cylinder passages 27 formed in stationary bearing-blocks 21 arranged at each side of the valve around the valve shaft 15. Spring-pressed annular washers 36 are fitted in the ends of the passages 25, 26, 27 adjacent the valve faces. In a modification, the inclined passages are replaced by L-shaped passages. Valve gear.-Each valve disc is formed with a shaft 15 extending from each side, and the ends of these shaft sections are detachably connected by tongue-and-groove couplings. Specification 254,961 is referred to.
Patent GB-1175734-A (GB)
Title: Hydraulic Transmission for Fabric Treating Machines
IPC: D06F37/30
Filed: 1967-04-10
Abstract: 1,175,734. Hydrostatic clutches. BORG-WARNER CORP. 10 April, 1967 [9 May, 1966], No. 16312/67. Heading F2C. [Also in Division D1 A washing and spin-drying machine includes a hydrostatic coupling of the internal gear pump type comprising an externally toothed input rotor 67 and an internally toothed outer rotor 68 which is freely rotatable in a housing 69a fast with a driven member, namely the washing machine basket. Rotation of the rotors in one direction causes fluid to be drawn from a sump 48 through a port 72 and supplied through a port 73 to an oscillating vane type motor 41. Rotation of the rotors in the opposite direction circulates liquid through a passage 120 having a restriction 124 to cause the housing to rotate.
Patent GB-580743-A (GB)
Title: Improvements in or relating to the manufacture of expanded thermoplastic materials
IPC: C08J9/12
Filed: 1943-10-05
Abstract: Expanded vinyl chloride polymers or copolymers are prepared by forming gas bubbles in a gel formed by heating a paste of said polymer and a plasticiser which has no appreciable solvent or swelling action thereon at normal temperatures, but swells at and forms a gel at elevated temperatures, and heating the said gel sufficiently to enable it to retain its cellular structure.  The gas bubbles may be formed by incorporating into the paste before the latter is gelled a blowing-agent such as diazoaminobenzene, sodium nitrite-ammonium chloride mixture, ammonium carbonate and sodium bicarbonate; or by submitting the gel to impregnation by an inert gas (nitrogen or carbon dioxide) under pressure at room temperature. Suitable plasticisers are dibutyl phthalate, dihexyl phthalate and tricresyl phosphate.  Fillers, pigments and cross-linking agents such as zinc oxide, may be incorporated into the gel or paste.  In examples: (1) a polyvinyl chloride-dibutyl phthalate paste is kneaded with diazoaminobenzene, heated to gel and heated further to liberate the gas; (2) a polyvinyl chloride tricresyl phosphate paste is heated to gel, cooled, gassed and heated further.  Specifications 500,298 and 578,513 are referred to.
Patent GB-1375263-A (GB)
IPC: A47B96/14
Filed: 1972-04-10
Abstract: 1375263 Cabinets ALEX LINDER GmbH 10 April 1972 [15 April 1971 7 May 1971] 16432/72 Heading A4B A cabinet with a top wall, bottom wall 2 and side walls 1 includes a transverse wall 4 or 25 having peripheral dimensions just sufficiently smaller than the corresponding dimensions of the space defined within the other walls which latter have no projections extending inwardly into said space whereby the transverse wall may be inserted through the open front of the cabinet and releasably secured therein. Doors 3 may be provided. In one embodiment, Fig. 1, the transverse wall 4 comprises a back wall and is secured by a wedging strip 14 to bear against a peripheral ledge 11. In another embodiment, Fig. 2, the cabinet is fitted with a back plate 21 and the transverse wall 25 is fitted with a resilient, peripheral sealing strip 27. The space between the plate 21 and wall 25 is filled with sound absorbing material, e.g. rock wool. In a modification the transverse wall is fitted centrally of the cabinet and doors are fitted at both the front and rear. The cabinet includes fitments Figs. 3, 4 (not shown) for engaging the floor and ceiling of a room in which the cabinet is mounted, the fitments providing a height adjustment to compensate for unevenness of the floor and/or ceiling.