baber/WOPTO huggingface dataset:
Patent GB-640411-A (GB)
Title: Improvements in and relating to the manufacture of sheets or webs of fibrous textilematerials
IPC: D04H1/54
Filed: 1948-03-04
Abstract: Sheets of fibrous textile materials are made by forming a layer consisting wholly or partly of fibrous cyanoethylated cellulose, which has been prepared by etherifying cellulose fibres with acrylonitrile while maintaining their fibrous structure, and rendering the fibrous cyanoethylated cellulose adhesive to bond the fibres together.  The cyanoethylated cellulose may be prepared from natural cellulose fibres such as cotton, hemp, ramie, jute or flax, or regenerated cellulose such as continuous or discontinuous viscose rayon fibres, preferably by soaking them in an aqueous solution of an alkaline catalyst, such as a caustic alkali, an alkali metal cyanide or a quaternary ammonium hydroxide, removing the excess solution by centrifuging, and reacting the fibres heterogeneously with acrylonitrile in the presence of a non-polar inert diluent such as benzene or toluene.  The cyanoethyl cellulose forms an accessible phase, surrounding, and merging into, crystalline non-etherified cellulose inclusions.  Two types of cyano-ethyl cellulose are formed, either of which may be used, in conjunction with a suitable swelling agent or solvent; the first, which exists when the nitrogen content of the fibres does not exceed about 9 per cent of their dry, ash-free weight, is swollen readily by dilute aqueous solutions of caustic alkalies and quaternary ammonium hydroxides, and by moderately strong solutions of such salts as sodium, ammonium or calcium thiocyanates, or zinc chloride, but is not rendered adhesive by water or organic solvents such as acetone or meta-cresol.  The second form exists when the fibres have a nitrogen content of about 9 to about 11 per cent, and is not soluble in, nor swollen by, water or aqueous caustic alkali solutions, but is swollen and rendered adhesive by organic solvents such as acetone, acetonitrile, b -ethoxy-propionitrile, dimethyl formamide, methyl formate and meta-cresol.  The cyanoethylated fibres may be used alone or in admixture with other fibres, and may be carded to form a web.  They may be treated with a weak aqueous solution of a surface-active agent containing an aliphatic chain of at least six carbon atoms in its molecule, e.g. cetyl trimethyl ammonium bromide, or with sodium dioctyl succinate, before carding. Specification 10246/38 (as open to inspection under Sect. 91) and U.S.A. Specification 2,375,847 are referred to.
Patent GB-147248-A (GB)
Title: Improvements in and relating to vulcanizers
IPC: B29C35/00
Filed: 1919-03-18
Abstract: 147,248. Wheelock, H. K., Weller, F. A., and Fontaine, W. R. March 18, 1919. Vulcanizing tyres.-A vulcanizer for repairing tyretreads comprises an arc-shaped hollow trough capable of being heated, and provided with removable matrices for moulding . any desired pattern on the tread, and heat non-conducting blocks detachably secured to the ends of the mould to prevent the formation of mould marks on the tyre. A hollow trough 5, Fig. 1, with filling- cup 11 and heater 9 is formed with a flange 15, under which take fingers 18<a> of clamps 17 which hold the tyre 20 in position. Prior to clamping the tyre in the mould, a matrix 24, Fig. 2, with the desired tread-configuration is placed in the groove 19. A portion of the trough has a hollow extension 21 to enable bead-moulds to be employed. Attached to the ends of the trough 5 are blocks 22 to prevent the end of the trough from marking the tyre. The blocks may be in contact with the tyre at the point of junction with the mould and recede from the tyre from this point, or they may contact with the tyre over the whole inner surface, tread patterns being formed on the blocks in this case, as at 26, Fig. 6. The blocks may be of solid wood or the like or hollow and of metal with or without means for circulating cooling- fluid. A layer of insulating-material 28 may be interposed between the mould 5 and block 22 or 26.
Patent GB-964185-A (GB)
Title: Polymer blends and their production
IPC: C08L9/00
Filed: 1962-02-21
Abstract: A polymer blend comprises from 50 to 98 parts of anhydrously polymerized rubbery 1-4-polybutadiene and from 2 to 50 parts of a 1-2 configuration liquid diene polymer and/or a vulcanisate therefor. The rubbery polymer may be produced by the use of alfin catalysts, lithium metal or organo-lithium catalysts, or chromium oxide fixed bed polymerization.  It is preferred that the rubbery polymer has a Mooney viscosity (ML4-100 DEG C.) of from 30 to 100 and that at least 85% has the cis-1.4-configuration.  The liquid diene polymer preferably has a number average molecular weight of from 1,000 to 20,000 and may be a homo-polymer of butadiene or a copolymer thereof with an aromatic hydrocarbon monomer containing a single vinyl group. The vulcanisate may be prepared using an element or compound thereof from Group VIa preferably in the presence of an accelerator. Fillers, e.g. carbon black may also be present.
Patent GB-197780-A (GB)
Title: Improvements in oil fuel furnaces
IPC: F23D11/00
Filed: 1922-03-08
Abstract: 197,780. Mosher, C. D. March 8, 1922. Liquid-fuel furnaces.-An oil-fuel furnace comprises a conical chamber formed of a plurality of sections 11 of incombustible material over the exterior surface of which dampers 19 are arranged, holes 18 being formed in a plurality of rings in the chamber in such a manner that air enters the chamber through the holes in a direction approximately opposite to that of the fuel from the burner 25. Projections 37 between the rings of holes deflect the sprayed oil-fuel towards the centre of the chamber. The dampers 19 have slots 20 registering with slots 17 in the sections 11, and are rotated from the front of the aircasing 32 by handles 24 operating gears 22, 23. The sections 11 are secured at their ends by corrugated bands, to allow for expansion.
Patent GB-851527-A (GB)
Title: Improvements in or relating to timepiece balance staff assemblies
IPC: G04B31/00
Filed: 1957-03-01
Abstract: 851,527. Clocks. JUNGHANS A. G. GEB., and JUNGHANS, H. March 1, 1957 [March 3, 1956], No. 6924/57. Addition to 773,379. Class 139 The floating balance assembly 12, 13, 14, Fig. 3, is carried by a metallic or plastic one-piece moulded or cast block 10, the arm 10a of which carries the upper bearing and the arm 10b of which carries the magnet 20 which co-acts with a magnet 18 on the balance staff. The arm 15a, Fig. 4, of the index 15 has a depending pin 23 which engages a screwed spindle 16 rotation of which adjusts the index. The spindle 16 is supported by two flanges 10c, 10d, and is adjustable with respect to a scale 10c<SP>1</SP>, Fig. 3, on the flange 10c. In a modification the index has an arm which abuts a fine adjustment screw. In still another example the index has a gear segment which meshes with the screwed spindle or with a gear connected to a pointer movable over a scale.
Patent GB-306720-A (GB)
Title: Improvements in or relating to provision serving trolleys
IPC: B62B3/10
Filed: 1928-03-07
Abstract: 306,720. Lyons &, Co., Ltd., J., and Oliver, G. W. March 7, 1928. Hand trucks; shelf fittings.-A trolly for dispensing tea comprises a chassis 2, a body consisting of a cupboard with doors 5 for containing used cups and teapots carried by trays adapted to be placed on shelves 8, and a top 9 bordered by flanges 10 around three sides and a hinged flange at the fourth side over the doors to permit trays to be slid on to the top for carrying cups adapted to be filled from an operative teapot carried in a cradle adapted to run on the. runway 15. Shelves 11, 13 are provided at the rear to accommodate trays holding filled teapots. A handle 16 is provided. Specification 233,926, [Class 21, Casks &c.], is referred to.
Patent GB-565417-A (GB)
Title: Improvements in and relating to dipper buckets for steam shovels, dredges and the like
IPC: E02F9/28
Filed: 1943-05-06
Abstract: 565,417. Excavating &c. AKTIEBOLAGET BOFORS. May 6, 1943, No. 7198. Convention date, June 5, 1942. [Class 68 (i)] In a dipper bucket for a steam shovel, dredge, &c. with replaceable teeth secured to the bucket or its lip by interlocking members with inclined faces, elastic means are provided for automatically holding said members in close contact. In Fig. 2, the bucket or bucket lip 1 has a tapered or conical part 2 engaging a corresponding socket 3 in the tooth 4, and held thereto by a transverse key 5, a spring 8 acting between said key and the base of a recess 6 in the part 2 ; the keyis protected by projection 10, 11, and is prevented normally from lateral movement by shoulders 9 engaging opposite sides of a part of a tooth. In Fig. 3, the tooth 4 has a tapered &c. projection 12 engaging a corresponding recess in the bucket 1, and held therein by a key 5, springs 15 engaging the ends of the key. In place of the springs 8, 15, the key may be made elastic.
Patent GB-114520-A (GB)
Title: Improvements in Roller Releasing Devices for Clothes Wringers.
Inventor: WRIGHT REA PATTISON
IPC: D06F45/00
Filed: 1917-05-18
Abstract: 114,520. Wright, R. P. May 18, 1917. Wringers, roller-separating arrangements for, adapted to release the pressure on the rollers in case of emergency, and operated either manually or automatically by the abnormal separation of the rollers in working, comprise a sectional or jointed bar 10, the ends of which are normally engaged between the pressure springs 8 and the adjusting screws 19, but are moved out of engagement to release the springs when the bar is disjointed. A push-bar or member 22 pivoted on a pin 13 forming the pivotal connexion of the overlapping sections 11, 12 of the bar 10 is normally held in a raised position by a spring 25, the sections having inclined abutting ends 14. When the member 22 is depressed, either by a direct blow or through the action of levers 27 pivoted to bars 30 overhanging the ends of the top roller 6<1>, the bar is disjointed, and plates 18 on its ends slide laterally out of engagement with the screws.
Patent GB-372464-A (GB)
Title: Improvements in automatic measuring and weighing devices
IPC: B65B1/34
Filed: 1931-03-09
Abstract: 372,464. Automatic-feed weighers. HARTMANN, C. W., Lyngby, near Copenhagen. March 9, 1931, No. 7304. [Class 143.] In an automatic feed weigher for weighing out predetermined quantities of lumpy material such as loaf sugar, and comprising means for measuring out a quantity slightly less than the predetermined quantity and means for supplementing the measured quantity, the means for supplementing the measured quantity comprise a device for severing lumps from a bar of the material and delivering the severed lumps to the measured material. As shown, the invention comprises a scoop 5 that is filled by being raised vertically through material contained in a supply hopper 1. Doors 6 at the base of the scoop are opened by a striker 34 to allow the measured material to fall into a weighing-receptacle 8 mounted on a weighbeam 20. The beam, normally locked by a U-shaped abutment 23, is released and a pair of cutters 15, 16 are rotated by the electromagnetic coupling of the lower cutter to a continuously rotating shaft 29. Bars of material stored in a reservoir 10 are fed to the cutters in succession by fingers 13 on an endless band 12, the lumps thus formed falling through a shoot 18 into the weighing receptacle. As the receptacle sinks under the weight of its contents, contacts 30 close and declutch the cutters from the shaft 29. Finally, the doors 9 at the base of the receptacle are opened by a striker 36 and the weighed material is discharged into a carton 7. The machine is controlled by a cam shaft 41, that through rod 38 serves also to agitate the hopper during the filling of the scoop.
Patent GB-139636-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/04
Filed: 1919-03-24
Abstract: 139,636. Westinghouse Brake Co., (Westinghouse Air Brako Co.). March 24, 1919. Fluid-pressure.-A feed-valve 5 operated by the difference of pressures in the equalizing-reservoir 4 and the brake-pipe 2 effects the supply of fluid to, and release from, the pipe 2 without passing through the driver's valve 1. The valve 5 contains a piston 9 operated to the right by the excess pressure in the reservoir 4 over the pressure in the pipe 2 to supply fluid from reservoir 3 through chambers 12, 10 to pipe 2. When the driver's valve is turned so as to exhaust the reservoir 4, the pressure in the pipe 2 aided by the spring stop 24 moves the piston 9 to the left and so connects pipe 2 direct to the exhaust outlet by way of valve 11. The pressures in the reservoirs 3, 4 are adjusted in normal working by the feed-valve 18.
Patent GB-398506-A (GB)
Title: Improvements relating to reinforced concrete construction for floors and the like
IPC: E04B5/23
Filed: 1932-03-11
Abstract: 398,506. Floors ; roofs. RAPID FLOOR CO., Ltd., 59, New Oxford Street, London.-(Schlagintweit, F. ; 7, Kronprinzenstrasse, Baden-Baden, Germany.) March 11, 1932, No. 7337. [Class 20 (iv).] Relates to a floor, roof, or like construction employing pre-cast beams A placed side by side, and consists in making provision for the negative bending moments which occur at supports or fixed ends in continuous constructions by omitting part or the whole of the upper flanges of the beams towards the ends of the spans in order to provide spaces into which reverse bending moment reinforcement E is placed and concrete cast. The beams may be of I-section, as shown in the Figure, with the upper flanges C omitted on one side of the beam along the portions D. The concrete filling extends to the upper surface of the beams. Stop members H to restrict the passage of the concrete may be cast integrally with the beams or formed separately of concrete or timber. The length of each portion D should not be less than one-sixth of the span. One flange of each I-beam may be formed as a ledge to support the flange of the adjacent beam. In the case of beams of hollowbox section, slots are formed in the top flanges for the insertion of the reinforcement and concrete.
Patent GB-1498647-A (GB)
Title: Stepper motor control in an electrostatographic reproducing apparatus
IPC: H02P8/32
Filed: 1975-02-21
Abstract: 1498647 Control Of Stepper motors XEROX CORP 21 Feb 1975 [22 Feb 1974] 7341/75 Heading H2J A three phase stepper motor M drives a mechanism feeding sheets from a stack to an electrostatographic reproducing apparatus, Fig. 5 (not shown) and is driven to a desired position prior to the start of a sheet feed operation by means of a one-way clutch (14), which couples the motor to a sheet feeding friction drive roller (12), Fig. 1 (not shown) and permits motor rotation in an unloaded direction to the desired position, and a control system which supplies low power pulses to the motor windings in a predetermined sequence to move it to the desired position. Assuming the windings are to be energized in a sequence XYZ during a sheet feeding operation, it is necessary for the motor to be in the Z phase position at the start of this operation and it is explained, Fig. 2 (not shown), that this position can be obtained, irrespective of the initial motor position, by energizing the windings in the sequence YXZ. As shown in Fig. 3, the motor windings are supplied from an SCR driven capacitor storage source 74 through solid state switches 78, which are controlled by respective OR gates 62, 64, 66 receiving signals from AND gates 68, 70, 72 for driving during sheet feeding and signals from AND gates 56, 58, 60 for driving during positioning. In a typical positioning and feeding cycle a start signal applied to flip-flop 32 energizes members 34, 36, 38, 40, 44, thereby opening a gate 46 to apply a low duty cycle signal to the gates 56, 58, 60, which are controlled by the outputs 1, 2, 3 of the decoder 44 whose counter 38 is responsive to the Z pulse outputs of decoder 40. The outputs 1, 2, 3 successively open and close gates 58, 56, 60 in this order to apply the signal from gate 46 successively to gates 62, 64, 66, whereby the windings YXZ are energized in sequence at low power to position the motor. With gates 56, 58, 60 now closed, the outputs 4 to 8 of decoder 44 control the gates 68, 70, 72 to allow the motor to be controlled by the XYZ outputs of decoder 40, until the expiry of the sheet feeding time set in the counter 38 closes the gates 68, 70, 72 to stop the motor. Typical pulse outputs of the decoders and gates are discussed, Fig. 4 (not shown). A signal output 12 of decoder 44 provides a test signal during feeding for comparison in a logic control L with a signal from a switch 90 closed by the sheet, the control L causing the flip-flop 32 to shut down the system if a misfeed is detected and also causing actuation of an alarm signal.
Patent GB-163532-A (GB)
Title: Improvements in spring forks for motor cycles
IPC: B62K25/24
Filed: 1920-03-12
Abstract: 163,532. Jones, S. March 12, 1920. Spring devices. - In devices in which the front fork B is attached to the steering - head A by one or more pairs of substantially parallel pivoted links C, D, links of bellcrank form are employed, to the free extremity of which is pivoted a guiderod E which projects through an eye in a bridge or abutment F mounted upon the fork and carries a spring or springs G, H. The parts are so arranged. that the rod E is nearly always at right-angles to the arm D<2>.
Patent GB-217325-A (GB)
Title: Vegetable and fruit cutting machine
IPC: B26D1/29
Filed: 1923-03-15
Abstract: 217,325. Harris, J. L. March 15, 1923. Cutting slices in succession.- In a machine for cutting vegetables or fruit into slices or strips, the vegetables are fed by gravity to the knife which is provided with means for forcing the slices either to strip-cutting knives or directly to discharging positions. The vegetables descend in stationary trunks 5 and rest upon a plate 21, adjustable for varying the slice thickness by nuts 27 which are threaded on the supporting-rods 25 and engage brackets 26 on the casing 1. A bracket 4 carries horizontal and vertical shafts 9, 7 rotated by a hand-wheel or pulley 10 and interconnected by bevel gearing 12, 13. The knife, or knives, 14, secured on the shaft 7 by a wing-nut, passing through the plate 21, and pins 16, is preferably formed with scalloped cutting-edges and has depending fingers 20 which traverse each cut slice over the plate 21. Knives 23, mounted on members 22, may be secured to downturned flanges 30 of the plate 21 in the path of the slices which are thus cut into strips. The trunks 5 may be extended to the top of the casing 1 or auxiliary trunks depending from a cover may telescope into the trunks 5. Y-shaped members 33 may be inserted into the trunks 5 to adapt them for small vegetables. If slices only are required, the knife 14 is provided with a depending flange in place of the fingers 20. The plabe 21 may be resiliently supported by spring clips which engage the rods 25.
Patent GB-884429-A (GB)
Title: Cryotron translators
IPC: H03K17/92
Filed: 1958-03-07
Abstract: 884,429. Circuits employing superconductive elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 7, 1958 [March 7, 1957], No. 7480/58. Class 40 (9). [Also in Group XIX] An arithmetic unit is characterised in that it uses cryotrons. A parallel-mode two two-digit number multiplier, Fig. 7, is described. A cryotron comprises a central tantalum gate wire 2, Fig. 2, surrounded by a niobium control coil 4, the complete unit being maintained at 4.2 K. by being immersed in liquid helium. At this temperature both the coil and the gate wire are normally superconductive but if a small current is caused to flow in the coil to produce a magnetic field of the order of 50 oersteds the gate wire becomes non-super-conductive, reverting to its usual resistive state while the control coil remains super-conductive. Thus the presence of a small current in the control coil causes an abrupt change in the resistance of the central gate wire. In the multiplier described, Fig. 7, eight cryotrons are employed, most of which, for example that having a coil 64, have more than one central gate winding. The two multiplier digits are applied to coils 62, 66 and 64, 68, the multiplicand digits to coils 70, 74 and 72, 76, and the four digit product is indicated by voltmeters 109, 104, 96 and 84, the most significant digit being on the left in all cases. Each voltmeter is associated with a group of gate wires across which a voltage is applied and the gate wires are so threaded through the control coils that every wire of a particular group only passes through at least one energized coil when the product digit associated with that group should be a " 0." Thus, when a product digit is " 0 " every wire in the associated group of gate wires is not super-conductive and the voltmeter indicates a non-zero potential, whereas when a product digit is " 1 " at least one wire in the associated group does not pass through any energized coils and the voltmeter indicates zero volts.
Patent GB-755257-A (GB)
Title: Improvements in or relating to rackets for ball games
Inventor: TURNER FREDERICK ARTHUR
IPC: A63B49/10
Filed: 1954-03-15
Abstract: 755,257. Rackets. SPALDING & BROS, Ltd., A. G. March 8, 1955 [March 15, 1954], No. 7497/54. Class 132(2) The "sweet point" of a games racket is caused to lie at the central area 5 instead of at the area 4 by including in the bow a lamination 6 which tapers symmetrically to nothing at the shoulders 3 of the frame where the ends are secured by binding 7.
Patent GB-1293381-A (GB)
Title: Rotary ball valve
Inventor: NATION DEREK JOHN
IPC: F16K5/06
Filed: 1969-02-12
Abstract: 1293381 Valves SERCK INDUSTRIES Ltd 27 Jan 1970 [12 Feb 1969] 7555/69 Heading F2V A rotary ball valve 10, comprises a rotary ball valve member 24, and a housing which is formed of two parts 11 and 12 having flanges 19 and 20 which facilitate welding together of the parts 11, 12, respectively, and moreover, which define therebetween a valve member shaft-receiving port 21. Bonded to each part of the valve housing is an elastomeric liner 22 which covers the entire inner surface of each housing part and a portion of pipe spigots 15, 16 projecting into the housing parts, and which, in the disassembled state of the valve as seen in the right hand side of the drawing, has projecting therefrom an annular lip 23 concentric with the pipe spigot. With the valve assembled, as seen in the left hand side of the drawing, the lip 23 is urged tightly against the ball member 24. In a modification, (Fig. 2, not shown), the annular projecting lips are dispensed with and instead the liner is appropriately recessed so as to accommodate within it and between each housing part and its associated spigot, a projecting member (32 or 33), preferably made of P.T.F.E., which member is urged against the ball valve member by means of a spring, (36 or 37).