baber/WOPTO huggingface dataset:
Patent GB-1533159-A (GB)
Title: Photographic shutter
IPC: G03B9/08
Filed: 1976-03-02
Abstract: 1533159 Camera shutter PRONTOR-WERK ALFRED GAUTHIER GmbH 2 March 1976 [29 March 1975] 08235/76 Heading G2A A camera shutter has means for indicating when it is to be cocked and means for indicating when it is ready for release. As shown, the shutter is uncocked and a red flag 20 indicates this. Anticlockwise movement of a red cocking lever 9a rotates a disc 4 clockwise until it is latched by a lever 12. A pin 22 on disc 4 engages a green flag 19 and moves it into a position in which it can be seen, while a pin (21) Figs. 2, 3 (not shown) on flag 19 engages red flag 20 and retracts it. Green flag 19 thus indicates that the camera is ready for release. Anti-clockwise movement of a green release lever 15a causes a pawl 27 to shift lever 12 thereby releasing disc 4 which rotates anti-clockwise to open and close shutter blades 2, and to change over flags 19 and 20 again. In Figs. 4 and 5 (not shown) the two flags 19 and 20 are replaced by a single disc (30) having two differently coloured halves. Instead of using colour difference, differences in shape or surface texture may be used.
Patent GB-539623-A (GB)
Title: Improvements in folding and sliding doors for factories and like buildings
IPC: E06B3/70
Filed: 1940-05-08
Abstract: 539,623. Sliding doors. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., and LEONARD, J. W. May 8, 1940, No. 8292. [Class 20 (iii)] A sliding and folding door has two or more adjacent leaves which are divided horizontally to provide a lower portion which is openable independently of the-rest of the door, and which has guiding means at the top of the doorway separate from the top guiding or supporting means for the rest of the door. The door comprises a number of leaves 1 to 6, the leaves 3 and 4 being hinged to an upright divided into three parts 9, 10 and 11, of which the part 11 supports and guides the upper portions only of the leaves 3 and 4. The leaves 2 to 5 are divided horizontally, and the lower portions 3<SP>1</SP>, 4<SP>1</SP> are hinged to the uprights 9, 10 so that the portions 2' to 5<SP>1</SP> move independently to provide a separate opening as shown in Fig. 2, the uprights 9, 10 having rollers 9', 10<SP>1</SP> at their lower ends. When the three parts 9, 10, 11 are in contact, the parts 9, 10 are at the sides of part 11 so that the arcs of the hinges 15 of the upper portions of the leaves must be offset from the part 11 to be co-axial with the hinges of the lower portion. The uprights 7, 8 terminate in rollers 7<SP>1</SP>, 8' at their lower ends and in pairs of rollers 7<SP>2</SP>, 8<SP>2</SP> riding in channels at their upper ends. In a modification, the part 11 is supported by stays from adjacent uprights 7, 8. Specifications 5828/13, [Class 20 (iii)], 493,815 and 512,135, [both in Group XXV], are referred to.
Patent GB-1547497-A (GB)
Title: Method and apparatus for the filtration of a suspension
IPC: B01D29/62
Filed: 1977-02-28
Abstract: For the continuous filtration of suspensions or emulsions in a filter bed formed from a loose packing of solid particles, the solid particles must be continuously cleaned. The solid particles (1) are cleaned with a part of the filtrate in counter-current in the region between the top edge of the filter bed and the overflow (9) of the clean part of the filtrate, the part of the filtrate used for cleaning being conducted away separately (6) from the clean filtrate. For this purpose, the fouled solid particles (1) are transported, by a pipe (10) penetrating through the filter bed, from the bottom end of the filter bed to the top from where they fall back down in counter-current through the filtrate rising in a tube (13). Improved washing of the filter material results with simultaneous higher throughput based on the space required. The apparatus needed is smaller than the apparatuses conventional hitherto and does not contain an additional cleaning device for the filter material arranged outside the filtration tank. <IMAGE>
Patent GB-879775-A (GB)
Title: Improvements in or relating to potential comparison circuits
Inventor: GILLETT JOHN BRIAN
IPC: H03M1/00
Filed: 1958-03-15
Abstract: 879,775. Transistor and thermionic discharge tube comparison circuits. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. March 15, 1958, No. 8368/58. Class 40(6) In a circuit providing an indication of which of two potentials IP, REF is the higher, the potentials are applied to the control electrodes of two devices TX1, TX2 having a common load R2 and each having individual loads R3, R4 from one of which is derived a potential to control an output device comprising a transistor TX5 which is either saturated or cut-off. A suitable reference potential REF is tapped from the potential divider R7 arranged across the battery E2 in series with E3, the base of transistor TX1 being connected over limiting diodes Dl, D2 to a bias supply El. With the potentials at the bases of transistors TX1, TX2 the same, the collector currents are equal and similar currents are passed by transistors TX3, TX4 to give a zero indication to a detector connected at the collectors X, Y, In the balanced condition the transistor TX5 passes a small emitter current. When the input potential IP falls slightly negative, transistors TX1 and TX2 pass greater and smaller currents respectively with the result that transistors TX3 and TX4 pass decreased and increased current respectively and transistor TX5 is cut off with the collector potential falling until caught by diode D4 conducting. When the input potential rises, the reverse effect occurs and the base potential of transistor TX5 rises until limited by current flow in diode D3 and the output potential OP falls to near earth. Since the amplifying stages TX1, TX2 and TX3, TX4 are symmetrical it is stated that changes in characteristics and temperature tend to cancel. The amplifier stages TX3, TX4 may be omitted and the null detector connected between the collectors of TX1, TX2. It is stated that thermionic valves may be used.
Patent GB-990491-A (GB)
Title: Improvements in or relating to flooring units or slabs
Inventor: PAYNE HAROLD JAMES WILLIAM
IPC: E04F15/024
Filed: 1963-03-02
Abstract: 990,491. Laminates. H. H. ROBERTSON (HOLDINGS) Ltd. March 9, 1964 [March 2, 1963], No. 8439/63. Heading B5N. A floor slab 10 comprises an upper finishing layer 11, e.g. of vinyl plastics material, at least one intervening layer 13 of multi-ply timber, partition board or the like and a bottom sheet 12 of metal, e.g. steel bonded to one another under heat and pressure by means of an adhesive, each side face of the slab being formed with an under-cut 14, the bottom edges thereof being radiused as at 15. Preferably the metal sheet has cut-away corners. Two intermediate layers of multi-ply timber or the like may be provided separated by a second sheet of metal.
Patent GB-453362-A (GB)
Title: Oven for the production of gas and coke
IPC: C10B3/00
Filed: 1935-03-18
Abstract: 453,362. Gaseous - fuel furnaces. DIDIER-WERKE AKT.-GES., 90, Westfalische Strasse, Wilmersdorf, Berlin. March 18, 1935, No. 8440. Convention date, March 19, 1934. [Classes 51 (i) and 51 (ii)] A vertical-retort furnace for the production of gas and coke is combined with a gas producer having one or more circuitous channels at the side or above for conveying heating gas from the producer to the channel for distributing gas to the burners. As shown in Fig. 1, gas from the producer 1 passes through circuitous channels 2, 3, 6 one on each side of the producer, to the distributing channel 7 leading to the burners 8. The partition walls separating the channels 3, 6 are provided with openings 4 which are controlled by dampers. As shown in Fig. 3, recuperators 13, 14 are arranged on each side of the producer separated by a partition wall 15 having a damper controlled opening 16. Air admission openings 19, 20 are provided for the recuperators. By opening the dampers 19 and the dampers in the partition 15 air may be drawn through both recuperators in series and through the passage 9 to the burners. When it is desired to use extraneous gas either alone or in conjunction with producer gas, the extraneous gas may be admitted at 19 and pass through the recuperator 13 so as to enter the channel 6 through dampercontrolled openings 12, air being admitted at 20 to the recuperator 14.
Patent GB-581878-A (GB)
Title: Improvements relating to fuel injection pumps for internal combustion engines
IPC: F02M59/48
Filed: 1945-04-05
Abstract: 581,878. Fuel-injection pumps. C.A.V., Ltd., BROOK, K., and EVANS, F. M. April 5, 1945, No. 8452. [Class 102 (i)] In a cam-actuated fuel-injection pump a for an internal combustion engine, the thrust piece e, f between the plunger b and actuating cam c is formed in two parts adapted to accommodate adjusting shims j between them. A side opening in the pump a permits the part f to be raised clear of the part e for the insertion of the shim or shims.
Patent GB-435051-A (GB)
Title: Improvements in or relating to perforators
IPC: B26D7/34
Filed: 1934-03-17
Abstract: 435,051. Perforating and strengthening edges of documents. MOND, A. L., 19, Southampton Buildings, Chancery Lane, London.-(Printator Ges.; 20, Lehderstrasse, Weissensee, Berlin) March 17, 1934, No. 8481. [Class 73] [See also Group XVI] In a machine for perforating and reinforcing the edges of documents the reinforcing strips are fed from reels by weighted pronged members carried on a shaft which is intermittently rotated in one direction by means of a pinion thereon engaged by a pivoted member carried by the operating lever and furnished with ratchet teeth. The strips, which are adhesive, are supplied from rolls 27, 28 and the ends are guided along tracks 31, 32. The ends are severed by means of knives 48 mounted on heads 13 which are reciprocated, against spring pressure, by a hand lever 8. The strips are fed by the pronged members 24<1> carried by weights 22 mounted on a transverse shaft 21. The hand lever 8 has pivoted thereto a segment 17 having inclined teeth which engage similarly inclined teeth on the pinion 20 on the shaft 21. Depression of the hand lever effects the rotation of the shaft until the weights are beyond their upper dead centre positions. By having the teeth of the sector and pinion inclined the return movement of the sector is rendered idle. The severed ends are secured by resilient pads 15 surrounding plungers 11 carried by the crosshead 10.
Patent GB-554890-A (GB)
Title: Improvements in or relating to rubberised fabric for use in the manufacture of pipes
Filed: 1942-03-26
Abstract: 554,890. Coated fabrics. INGRAM, G. D. March 26, 1942, No. 8518/43. Divided out of 554,877. [Class 140] A fabric for use as an external covering for a pipe is coated on one surface with vulcanized rubber which has been faced up prior to vulcanization e.g. by passing it and a sheet of American cloth or metal such as aluminium between rolls with the rubber in contact with the smooth surface and on the other surface with uncured rubber. The fabric is especially suitable as an external covering for a flexible pipe of the kind described in Specification 550,448, [Group XXVIII], and may be applied in the manner set out in Specification 554,877, [Group XXVIII].
Patent GB-1158724-A (GB)
Title: Amino Acid Derivatives
Inventor: SCHOENEWALDT ERWIN FREDERICK
IPC: C07K1/00
Filed: 1966-06-22
Abstract: 1,158,724. Peptide synthesis. MERCK & CO. Inc. 22 June, 1966 [24 Oct., 1965], No. 8527/69. Divided out of 1,158,721. Heading C2C. [Also in Division C3] Peptides containing hydroxylated α-amino acids are prepared by N<SP>α</SP>-acyIating an α-amino acid, peptide or peptide derivative with an O- trialkylsilyl derivative of an N-carboxy anhydride of a hydroxylated α-amino acid. The acylation is carried out under the controlled conditions described in the parent Specification.
Patent GB-785238-A (GB)
Title: Improvements relating to beer engines
IPC: F04B9/14
Filed: 1955-03-24
Abstract: 785,238. Dispensing liquids. SIMPSON, F. March 26, 1956 [March 24, 1955], No. 8549/55. Class 116 The pull lever 10, Fig. 2, of a beer engine is connect to the piston 'rod 11 by a pair of bars 17, Fig. 3 which are spaced by a device 18 securing them detachably together and are formed at each end with a bearing 171 to engage the relevant trunnion pins 102, 141. The bars 17 may be brass castings and the distance piece 18 may have threaded ends 181 for engaging nuts 19 by which the bars 17 are secured together; the bars 17 may thus be removed by unscrewing a single nut.
Patent GB-573367-A (GB)
Title: Improvements in or relating to heat exchange devices
IPC: F28D1/03
Filed: 1941-07-07
Abstract: 573,367. Making tubes and heatexchangers. COLTMAN, J. L., BROOKSHAW, J. G., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 7, 1941, No. 8552. [Classes 83 (ii) and 83 (iv)] Soldering; joints.-In making heat-exchangers of the kind having a matrix of thin metal plate or film type elements or of thin seamed-tube elements, particularly for radiators, oil coolers or intercoolers for internalcombustion engines, the edges of thin metal elements are folded in re-entrant manner to form juxtaposed internal flanges and a U- shaped member is attached so as to embrace the flanges and the flanges united to each other and/or to the U-member by soldering, brazing or the like to render the joints fluid-tight. The inner and also the outer faces of the U- member may be coated with brazing metal, preferably before forming the U-member by bending, the coating being applied by a rolling- on, electro-deposition, spraying, &c. process, or a separate thin foil of brazing metal may be placed between the elements and the inner surfaces of the U-member. The U-member may be of heavier gauge than the metal of the elements and it may be preliminarily attached to the flanges by a clamping or crimping operation and, if desired, also by tack welding. In a plate-type apparatus, each cell of which consists of a folded rectangular envelope with a seamed side and containing a corrugated element 2, the end edges 6 are folded in reentrant fashion, the corrugated elements 3 are applied, and the end edges of adjacent cells are then brought into contact with each other and U-members 7 applied. These parts are then tightly clamped together and the assembled matrix heated in a furnace containing an inert or reducing atmosphere such as of burnt coal gas, hydrogen or cracked ammonia to effect the brazing operation. If desired, the ends of the U-member may extend beyond the ends of the flanges and the parts of the member beyond the flanges may be squeezed or spotwelded together during the clamping operation. After brazing, the projecting portions are cut off flush with the folded edges of the cells. Flattened tubular elements for finned tube heat-exchangers may be folded from sheet metal and the edges joined in the above manner at one of the apices of the element. Specifications 568,567 and 570,615, [Group XIII], are referred to.
Patent GB-848460-A (GB)
Title: Improvements in and relating to pressure regulators in domestic hot-water heating installations connected to central heating plant
IPC: G05D16/10
Filed: 1957-03-15
Abstract: 848,460. Heating by circulation of water. CHRISTIANSEN, M. March 15, 1957, No. 8600/57. Class 64(2) [Also in Group XXIX] In a heating system in which flows hot water from a district supply plant, a device for maintaining the pressure in the supply line 11 at a predetermined value above the pressure in the return line 13, includes a cylinder 1 containing a piston 8 connected by a spindle 7 to a valve member 9 controlling flow through the supply line and loaded by acompression spring 6 on an adjustable threaded spindle 5. The lower face of the piston is subjected to the pressure in the supply line and its upper face to the pressure in the return line 13 via a pipe 14. There may be a pipe connecting the space below the piston 8 to the downstream side of the valve 9. Alternatively the valve member 9 may be reversed in the housing, the housing inserted in the line 13, and the pipe 14 connected to the supply line 11.
Patent GB-276904-A (GB)
Title: Improvements in disappearing stairway
IPC: E04F11/04
Filed: 1927-03-29
Abstract: 276,904. Bessler, F. E. March 29, 1927. Ladders.-A disappearing ladder is combined with a hinged floor panel so that as the panel opens and closes the ladder appears and disappears. The floor panel 3 is hinged at 5 to the floor opening surround 1 and carries standards 12 each of which supports hinged sliding blocks 17 to engage grooves 24 in the ladder sides, a spring latch 21 to hold the ladder in its upper position, and a swivel guidepulley 34 for the flexible rope 37 which raises the ladder. An angle-frame 6 carrying two U-shaped brackets 7 is secured to the upper edge of the floor opening above the hinge 5, and each of the U-brackets has pivoted thereto an arm 8 carrying an elongated guide-bar 10 to engage one of the recesses 24 in the ladder sides at the upper ends thereof. A cross-bar 11 coasting with depending bars on the ladder sides forms an upper stop for the ladder. Spring rollers 30 are mounted between the arms of U- shaped brackets 7 and the rope 37 passes from these rollers over guide-rollers 39 on the sides of the floor opening and guide-rollers 34 on the ladder sides to bars 38 at the lower end of the ladder sides. As the panel is pulled downwards, the ladder slides downward and the spring rollers are tensioned.
Patent GB-319580-A (GB)
Title: Improvements in reel holders for tape, string or the like
IPC: B65H16/08
Filed: 1929-03-18
Abstract: 319,580. Payne, P. P., (trading as Payne & Sons, P. P.). March 18, 1929. Reel holders. - In a reel-holder in which the reel of string &c. rests upon two or more rollers which exert a drag upon the rotation of the reel, the rollers 3 are carried by the downwardly - extending arms 1 of an inverted integral U- shaped frame. The frame has a supporting ring 2 and the rollers 3 are fixed or rotatably mounted on spindles 4 riveted in the frame.
Patent GB-859189-A (GB)
Title: Regulation of a forced flow, once-through steam generator operating with the working medium at super-critical pressures
IPC: F22D5/30
Filed: 1959-03-12
Abstract: 859,189. Feedwater regulation of critical-pressure boilers. SULZER FRERES S.A. March 12, 1959 [March 13, 1958], No. 8662/59. Class 123(2) In a method of regulating a super-critical, forced-flow steam generator, the feed quantity of the working medium of which is adjusted according to the alteration in the intensity of firing, pre-correction is effected by a signal which represents the quantity of working medium flowing per unit of time and is derived from a liquidphase region of the generator where the gradients of the isobars p, shown at intervals of 20 atmospheres absolute from 220- 400 in the Figure, is small, i.e. between the values i=400-600 total heat units expressed in K. cal. per Kg. Post-correction is accomplished by a signal representing a temperature of the working medium at a steam-phase region of the tube system where isogradients J<SP>1</SP>, each passing through points on the isobars where the incremental rate of change of the temperature t for a change of 100 heat units is constant, lie between the values of J'= 30-100C. per 100 units of heat. The temperature and feed quantity signals are preferably derived from an area of the tube system located as near as practicable to an irrational phase-changing region Pk occurring at the points of inflection of the isobars. A preferable area is near the point of intersecting S on the drawing, of the ordinate I=600 heat units and the isogradient J<SP>1</SP>=30C. per 100 heat units. When it is desired to free, as far as possible, the temperature signal from the influence of the quantity signal it is most favourable to dispose the temperature derivation point between the isogradient J=60-70C. per 100 heat units.
Patent GB-684396-A (GB)
Title: Improvements in or relating to belt fastening devices for flat power transmission belts
IPC: F16G3/08
Filed: 1949-03-31
Abstract: 684,396. Belt fastenings. KLEINHENN, P. V. March 31, 1950 [March 31, 1949], No. 8708/49. Class 80(i). Abutting ends 1 of a flat belt are joined by a fastener comprising upper and lower convex metal plates 5, 2, one or both of which are made thin and resilient to accommodate any difference in thickness of the belt ends under the pressure of the connecting bolts 6. The squareheaded bolts 6 pass through the lower plate 2, which may be provided with teeth and has a rubber cushion 4 bonded thereto, through the upper plate 5, through square washers 8 provided with teeth which may overhang the upper plate or pass through holes therein, and finally through securing nuts 7. Supplementary roughened steel plates 10, 11 may be placed between the belt and the convex plates. In various modifications the rectangular upper plate 5 may be provided with widened ends, the washers 8 may be replaced by thickened toothed portions of the plate 5, or the bolt heads may have teeth penetrating holes in a resilient lower plate. In a further modification, a convex sheet metal fastener is formed of straight sections, the lower rigid plate having side walls and being provided with projections interlocking with notches in the toothed heads of the connecting bolts.
Patent GB-775278-A (GB)
Title: Improvements in or relating to thermionic valves or electron tubes
Inventor: RANGABE ALEXANDER RIZO
IPC: H01J19/42
Filed: 1954-03-26
Abstract: 775,278. Discharge tubes. PLESSEY CO., Ltd. March 25, 1955 [March 26, 1954], No. 8708/55. Divided out of 775,277. Class 39(1). Metal centring members 3 which have an oxidized insulating layer on the surface which abuts against the electrodes 4, as described in Specification 775,277, are supported inside a backing plate 1. The backing plate is formed from a metal strip bent into a U-shape, and secured at its free ends 5. Tags 2 are bent down to hold the centring members in position ; these tags may extend completely across the thickness of the structure, as at 10 in Fig. 7. The centring members may contact the electrode 13 over part only of their height, as in Fig. 10.
Patent GB-1400971-A (GB)
Title: Vertical reactor
IPC: B01J8/04
Filed: 1973-02-22
Abstract: 1400971 Downflow catalytic reactor TEXACO DEVELOPMENT CORP 22 Feb 1973 [27 April 1972 (2)] 8724/73 Heading B1F In a downflow reactor comprising catalyst zones 9 and 26, Fig. 1, for reacting a vapour/ liquid mixture introduced at 1, distributor plate 5 comprises filter baskets 6, Fig. 5, distributor tray 40 has distributor caps 8, Fig. 4, over openings in the tray, each cap 8 having at least one V-shaped notch, tray 14 collects liquid phase from catalyst zone 9 and quench fluid from 12 and the liquid together with gas passes through mixer 16, Fig. 7, comprising cap 37 with rectangular prongs 36, a downcomer 17 with upwardly tapered prongs 33 in radial alignment with the rectangular slots of cap 37, and a conical deflector plate 18, perforated tray 19, and a distributor tray 22 with caps 24, similar to tray 40.
Patent GB-955329-A (GB)
Title: Binary-to-decimal decoding matrix using static switches
IPC: H03K17/80
Filed: 1963-03-05
Abstract: 955,329. Electric signalling systems. SCIENTIFIC MANAGER OF INSTITUTAL DE FIZICA ATOMICA. March 5, 1963 [March 5, 1962], No. 8752/63. Heading G4H. In a binary decoder in which A.C. is routed from a source G to one of ten lamps 0-9 each switching element comprises a pair of cores T both of which carry a common D.C. control winding V and each of which carry a switching coil U which are connected in series opposition to prevent A.C. signals being induced in the D.C. circuits.
Patent GB-135749-A (GB)
Title: Combined Sifter and Shovel.
Inventor: BEACH HERBERT HENRY
IPC: F24B15/08
Filed: 1919-04-07
Abstract: 135,749. Beach, H. H. April 7, 1919. Shovels. - A combined sifter and shovel comprises a shovel a with a permanent sifter bottom b provided with a false solid bottom c which is hinged at the rear of the shovel, and is held in position against the sifter bottom by a spring, a handle d being provided to enable the false bottom to be depressed to open the sifter bottom.