baber/WOPTO huggingface dataset:
Patent GB-643463-A (GB)
Title: Improvements in and relating to the printing of polyvinyl resins
IPC: B41M1/30
Filed: 1947-03-28
Abstract: Printing compositions comprise a pigment or dyestuff, a vinyl chloride-vinyl acetate copolymer resin and a solvent or mixture of solvents for the copolymer.  Preferably a plasticizer is present which is compatible with the copolymer.  When a pigment is used it may be dispersed in the solvent and if a dyestuff is used it is preferably soluble in the mixture of solvents.  A blend of high- and low-boiling solvents is preferably used.  Specified solvents are acetone, cyclohexanone, methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, isopropyl acetate, propylene oxide and trichlorethylene.  Other solvents may also be added such as benzene and toluene.  Specified plasticizers are n-butyl acetyl - ricinoleate, di - n - octyl phthalate, di - n - butyl phthalate and tricresyl phosphate.  Examples show a composition of a vinyl chloride-vinyl acetate copolymer, tricresyl phosphate, methyl isobutyl ketone, toluene and either Fast Red G or Chrome Green.ALSO:Plastic materials of polyvinyl chloride or a vinyl chloride-vinyl acetate copolymer are printed by applying thereto a pigment or dyestuff, a vinyl chloride-vinyl acetate copolymer resin and a solvent or mixture of solvents for the vinyl chloride-vinyl acetate copolymer, at least one of which dissolves polyvinyl chloride if the material is so constituted.  Preferably a plasticizer is present which is compatible with the vinyl chloride-vinyl acetate copolymer and with polyvinyl chloride if the material is so constituted.  At least one solvent used may be a ketone and at least one solvent may be incapable of dissolving the polyvinyl material. When a pigment is used it may be dispersed in the solvent, and if a dyestuff is used it is preferably soluble in the mixture of solvents. The invention is applicable to the printing of sheets or extruded sections such as electrical insulating coatings of wires and cables. The printing may be effected in a static manner, or the printing composition may be applied to the continuously moving material. Multiple printing with different colours may also be carried out. Various methods of printing are described.  A blend of high- and low-boiling solvents is preferably used.  Specified solvents for the resin and the material are acetone, cyclohexanone, methyl ethyl ketone and methyl isobutyl ketone.  Specified solvents for the resin which have only a slight action on the material are ethyl acetate, isopropyl acetate, propylene oxide and trichlorethylene, when the material is polyvinyl chloride.  Other solvents which do not dissolve the material may also be added, e.g. benzene and toluene.  Specified plasticizers are n-butyl acetyl-ricinoleate, di-n-octyl phthalate, di-n butyl phthalate and tricresyl phosphate.  Examples show the use of vinyl chloride-vinyl acetate copolymer, tricresyl phosphate, methyl isobutyl ketone, toluene and either Fat Red G or Chrome Green.
Patent GB-355182-A (GB)
Title: Improvements in switching arrangements for telephone systems
IPC: H04M17/02
Filed: 1931-03-19
Abstract: 355,182. Exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm.-(Assignees of Vigren, S. D. ; 41, Banergatan, Stockholm.) March 19, 1931, No. 8513. Convention date, March 21, 1930. [Class 40 (iv).] The microphone at a prepayment station is associated with one or more rectifiers, and the direction of line current is reversed during the period between the completion of the wanted connection and the operation of the prepayment device to render the microphone ineffective. Relays A, B energize when the subscriber calls, lighting the lamp AL, which is extinguished by the energization of relay BR when the operator plugs in. The operator sets up the call and throws the ringing key EOR, whereupon relay SVR energizes over the sleeve circuit and locks, reversing the line current to disable the microphone M. When the prepayment device D is operated e.g. by the dropping of a coin, the insertion of the resistance R releases relay A, and relay SVR falls back due to the short-circuiting of its holding winding. In a modification applicable also to automatic working, the current reversal is dependent on the reply of the called subscriber. As shown two rectifiers L1, L2 are used, but it may be sufficient to use a single rectifier in series or in parallel with the microphone M.
Patent GB-743209-A (GB)
Title: Improvements in labelling machines
Inventor: SNELLING ERIC VICTOR
IPC: B65C9/10
Filed: 1953-03-27
Abstract: 743,209. Feeding sheets. BETH LABEL & WRAPPER MACHINES, Ltd. June 21, 1954 [March 27, 1953], No. 8533/53. Class 100 (1). Pile supports.-In a labelling-machine the stack of labels 1 is replenished manually, so that labelling is not interrupted, by the provision of an auxiliary support 12 arranged at each side of the pile and operable by hand to engage beneath the pile to allow the main support 2 to be lowered to receive a new pile. In operative positions, both supports are urged upwardly to keep the top of the pile at a constant level. The main pile support 2 is detachably secured to a plate 5 on a stem slidable in a column 7 urged upwardly by a chain 8, passing over pulleys 9, 10, and having a weight 11 secured thereto. Each auxiliary support comprises fingers 12 on a bar 13 slidable transversely of the pile on two rods 14 carried by a framework 15, 16. Long pins on each bar 13 engage slots set at 45 degrees in a strip 17, and a pin on the end of the strip engages a transverse slot in a manuallyoperated transverse lever 21, the arrangement being such that movement of the lever either moves the fingers 12 beneath the pile or retracts them. The frame 15, 16 is carried by a support 26, guided and supported in the main frame, to which is pivoted a lever 27 carrying a weight 28 and supported by a stop 31. A link 32 is pivoted to the framework 33 and to a link 29 pivoted to the lever 27, and it rests on a flat portion of a disc 35 secured to a shaft 34. A wheel 36, secured to the shaft 34, has one end of a chain 37 secured to the periphery thereof, the chain passing around a rotatable support 38 and being attached to the end of the column 7 of the main support 2. In operation, when the pile 1 is to be replenished, the lever 21 is actuated to move the two sets of fingers 12 beneath the main support 2 and coinciding with recesses 3 in the sides of that support. The shaft 34 is now rotated by the operation of. a lever 39 so that first the lever 27 is lifted away from the stop 31 whereby the weight 28 can exert an upward force on the frame 15, 16, and thus the fingers 12 engage and maintain the pile 1, and then the chain 37 pulls down the main support 2 to receive a new pile. When the lever 39 is reversed, the support 2 rises under the action of the weight 11 to press the top of the new pile beneath the old pile; the fingers 12 are then withdrawn by actuating the lever 21, and the frame 15, 16 drops. As described, the labels are separated from the stack by rolling cylindrical metal cans or the like, to which adhesive has been applied, along a track and over the pile.
Patent GB-374970-A (GB)
Title: An improvement in quick fitting collapsible cardboard boxes
IPC: B65D5/36
Filed: 1931-09-04
Abstract: 374,970. Cardboard boxes. GOUGH, H. T. W., Kia-ora, Sandhills Lane, Barnt Green, Worcestershire. Sept. 4, 1931, No. 8552. [Class 18.] A collapsable cardboard box has inwardly folding ends or sides creased or scored down the middle and an upwardly folding bottom creased across the middle in line with the end or side creases and along lines extending from said middle crease to the corners of the box, the box being erected from the collapsed condition by straightening a string or band threaded through holes in the bottom of the box, adjacent the middle crease. As shown in Fig. 1, the ends 3 are creas d along lines a and the bottom 1 along lines b, c, the string 9 being threaded through the holes 10a adjacent the line band through holes 10 in the bottom of the box. When the string is pulled to erect the collapsed box, Fig. 4, the middle part of the folded box bottom is forced downwards and the box opened. The sides 2 may be creased instead of the ends, in which case the lid 4 is centrally creased in line with the creases in the sides and bottom.
Patent GB-140606-A (GB)
Title: Improvements in cotton combing machines
IPC: D01G19/26
Filed: 1919-04-05
Abstract: 140,606. Walsh, W. A., Wilson, W., Hayes, J. E., and Howard & Bullough. April 5, 1919. Combing-machines. - In a detaching-roller mechanism for a Heilmann-type combing- machine, of the kind comprising a quadrant and a clutch-device, the clutch-box is mounted on a countershaft Y geared to the detaching-roller shaft X and driven by the quadrant F. The clutch part G, which drives the shaft X through gears V, W, is loose on the shaft Y, which slides in its bearings to engage and disengage the driven clutch part H. The quadrant F is mounted on an eccentrically adjustable stud J to allow for the elimination of back-lash, and is positioned between the carrying-beam K and the quadrant cam E, with its fulcrum as near as possible to the beam K. The main drive-gear A engages directly with both the gear B on the countershaft C and the gear D on the cam shaft O. The gear D and cam E are both adjustably secured on a disk-flanged sleeve P keyed to the shaft. Specification 14536/07 is referred to.
Patent GB-910463-A (GB)
Title: Seat slide
IPC: F16C29/04
Filed: 1961-03-09
Abstract: 910,463. Seats. ATWOOD VACUUM MACHINE CO. March 9, 1961 [June 13, 1960], No. 8601/61. Class 52 (2). A slide structure comprises two straight metallic channel members 18, 20 fitted together in telescopic relation with their open sides confronting and with rolling bearing elements 29, 30 disposed between them so that the one is rollably supported on the other, the side walls of the narrower member 20 having longitudinal flexible resilient flanges 33 which diverge outwards, while the side walls of the member 18 have longitudinal flexible resilient flanges 32 which converge inwards, the flanges 32 being disposed outside the flanges 33 and in parallel relation thereto, elongated narrow strips 31 of non-metallic material on the flanges 33 lying between the flanges 32, 33 on each side so as to spread those flanges to the aforesaid parallel relation, and the strips 31 make substantially line bearing contact with the flanges 32 along longitudinally extending lines. The elements 29, 30 may be cylindrical rollers which make transverse line contact with the webs of the channel members 18, 20. As shown in Fig. 9, the rollers have their edges 43 relieved to clear rounded edge portions 45 of the web 44 of the channel member 20 (Fig. 4). The strips 31 may be of moulded nylon. As shown in Fig. 6, each strip is of moulded flexible resilient material and includes a hollow compressible cushion portion 37 in the middle which is of greater height than the end portions 38. The portions 38 are solid and relatively non-compressible so that they serve to limit the compression of the hollow cushion portion 37. Each strip 31 has dowel pins 34, one of which fits snugly in a hole 35 in the flange 33 and the other fitting loosely in a slot 36 in the flange 33 to allow endwise movement of one end of the strip during compression.
Patent GB-367215-A (GB)
Title: Improvements in or relating to packing for shafts passing through walls subjected to differences in pressure
IPC: F16J15/54
Filed: 1931-03-20
Abstract: 367,215. Stuffing - box substitutes. SOC. RATEAU, 40, Rue du ColisÚe, Paris. March 20, 1931, No. 8654. Convention date, March 22, 1930. [Class 122 (v).] Packing for a revolving shaft comprises a member c rotating with the shaft and slidable axially thereon under the sole influence of the difference of fluid pressure on its opposite sides and formed with holes e through which lubricating oil' from the bearing B gains access to the rubbing faces. Oil thrown centrifugally from these faces is caught by the rubber washer g' and guided back on to the member c.
Patent GB-323164-A (GB)
Title: Improvements in face masks for protection against dust or poisonous gases
IPC: A62B18/02
Filed: 1929-03-18
Abstract: 323,164. Goeke, H. March 18, 1929. Respiratory appliances.-A face-mask a, for protection against dust or poisonous gases, comprises a convex shield of aluminium or the like having a pneumatic rim c to engage the face and a pair of air inlets h comprising flanged cylinders screwed on to upstanding flanges on the mask and containing a number of gauze or like. screens g increasing in fineness from the exterior inwards. The screens g may consist of silk gauze in circular metal frames. The base k of the mask is of substantially triangular shape and is provided with a water sump m, screwed to a flange l. The mask is secured to the face by straps e.
Patent GB-193723-A (GB)
Title: Improvements in holders for collapsible tubes or containers
IPC: B65D35/02
Filed: 1922-03-27
Abstract: 193,723. Delves, J. March 27, 1922. Tubes or containers, collapsable.-A holder for collapsable tubes is made of india-rubber, moulded or otherwise formed to the shape of the tube. The tube is inserted at the end c of the holder so that the neck projects through an opening a in the other end, the body of the tube being retained by a shoulder b. The end c of the holder is then closed by a spring clip which rests between ribs e.
Patent GB-1449751-A (GB)
Title: Annealing to control gate sensitivity of thyristors
IPC: H01L21/322
Filed: 1974-02-27
Abstract: 1449751 Treating semiconductor devices WESTINGHOUSE ELECTRIC CORP 27 Feb 1974 [5 March 1973] 8821/74 Heading H1K In a method of manufacturing a thyristor its "gate sensitivity", which is inversely related to the current needed to fire or drive the device, is first reduced by masking at least some parts of the cathode emitter region 14 in the thyristor of Fig. 1, and irradiating at least some plots of the unmasked gate regions to decrease the gate sensitivity below a desired value, and thereafter at least some of the irradiated portions are annealed to return the gate sensitivity to a desired value. The radiation used should disturb the atomic lattice of the irradiated parts to increase the carrier recombination rate without increasing the carrier generation rate correspondingly. Preferably all of the cathode emitter regions are masked and all of the gate regions are irradiated with electrons from a 2 Mev source to provide a dosage between 1 x 10<SP>13</SP> and 1 x 10<SP>15</SP> electrons/cm.<SP>2</SP>. The radiation mask may comprise a plate of low carbon steel, tungsten or lead. Alternatively the thyristor may be centre-fired rather than edge-fired, Fig. 2 (not shown). The annealing of the device is preferably selectively restricted to the irradiated gate regions by utilizing a laser beam or a local induction heater, Figs. 3 and 4, not shown), and the gate sensitivity is monitored during the annealing. The use of proton, neutron, alpha and gamma radiation is also envisaged.
Patent GB-309126-A (GB)
Title: Improved method of and apparatus for making a composite strand or covered wire
IPC: D07B7/14
Filed: 1929-03-19
Abstract: 309,126. Slade, E. April 5, 1928, [Convention date]. Yarns and threads.-Yarn for weaving into fabrics for brake lining &c. comprises a thin metallic core 26, a loosely applied wrapping 16 of asbestos strip, and binding wires A, B laid in opposite directions. The asbestos strip 16 is fed positively by a roughened roller to a moistening device comprising a positively driven roller 21 immersed in a tank 23 of water which is maintained at constant level by an overflow pipe 24; from thence the strip is led between the two lower of three spaced horizontal bars 30 whereby it is held from rotation. The core wire 26 is led through the upper two bars 30 and the core and strip pass through the hollow spindles of the covering heads 38, 50 which bind the wires A, B about them in opposite directions. The strip is wrapped about the core by being held against rotation by the bars 30 and rotated at a distance therefrom by the first binding wire A. An electromagnetically operated stop motion, Fig. 8 (not shown), is provided and is actuated upon breakage of the core, strip or either of the binding wires, or when the roll of asbestos strip is exhausted. Specifications 253,894, [Class 109, Ropes &c.], and 309,125, [Class 142 (iv), Woven fabrics &c.] are referred to.
Patent GB-397795-A (GB)
Title: Sliding hood on closed vehicles
IPC: B60J7/06
Filed: 1933-03-24
Abstract: 397,795. Vehicle opening-tops. LANGE, H., Erlenbach, Zurich, Switzerland. March 24, 1933, No. 8945. [Class 108 (i).] In hoods of the kind in which the cover is attached to hoops arranged to run in longitudinal guides the hoops are interconnected by bands having resilient inserts and the guides which project above the longitudinal sides have their ends formed so as to descend to the level of the fixed part of the roof. The cover 28 is secured to a number of hoops or ribs 11 having roof bars 9 provided with side extensions 91, the ends of which bear resiliently on the fixed sides of the roof and carry guide elements 6 of leather adapted to slide in channel-shaped guides 5 which project above the fixed part of the roof and towards both ends gradually descend to the level of the fixed part of the roof. The ribs 11 are interconnected at each side by bands 12 having spring inserts 13 which tend to fold the cover 28 in loops when the roof aperture is opened. The cover may be opened from either or both ends towards the centre. The front and rear ribs 11 are provided with angle-irons 18 adapted to carry cover-plates 15 and to abut against resilient pads 20 against which they are pressed by locking and stretching members 21, 22, 23. Intermediate of the ribs wire rods 27 are secured to the bands 12, the rods being provided with marginal bent parts to which the inner lining 30 is secured.
Patent GB-493047-A (GB)
Title: Improvements in starting apparatus for internal combustion engines
IPC: F02N15/06
Filed: 1937-03-30
Abstract: 493,047. Turning-gear. BOSCH AKT.- GES., R. March 30, 1937, No. 8971. Convention date, March 27, 1936. [Class 7 (v)] In an engine starter in which a pinion 15 is displaceable along a threaded sleeve 12 driven from the starting-motor shaft 11 through a free-wheel clutch 18, the pinion is locked in its position of engagement with an engine gear 32 until the starting-motor is deenergized. As shown, clutch plates 18 are disposed between a nut 16, engaging threads 14 on the sleeve 12, and a drum 17 keyed to the armature shaft 11 and provided with an abutment plate 19 and a spring abutment 20. A spring 29 tends to press the nut 16 against the clutch plates 18, but this pressure is normally relieved by a bolt 23 extending through a slot 27 in the shaft 11 and carried by a rod 22 moved axially by a spring 26 and an electromagnet 25. In operation, the starting-motor is switched on and the sleeve 12 is driven only through the friction between flanges 30, 33 on the sleeve 12 and the shaft 11, and the pinion 15 moves axially on the sleeve 12 into mesh with the engine gear 32. In the meshing position, a spring-actuated locking pin 31 in the flange 30 engages between the teeth of the pinion, and the circuit of the electromagnet 25 is closed by a contact 34 engaged by a flange on the pinion ; the electromagnet draws down the rod 22 and bolt 23 against the spring 26, allowing the nut 16 to tighten the clutch 18 to transmit the full torque of the starting motor. When the engine starts and overruns the pinion 15, this is not moved out of mesh until the driver breaks the circuit of the starting-motor and the electromagnet 25. In a modification, the threaded sleeve carrying the pinion is initially driven through the plate clutch, which is held in light engagement by a spring : and the locking pin 31 is replaced by a ball moving in an aperture in the threaded sleeve and engaged for locking purposes by an inclined shoulder on a rod corresponding to 22.
Patent GB-220903-A (GB)
Title: Improvements in razors, scrapers or the like
IPC: B26B21/06
Filed: 1924-04-09
Abstract: 220,903. Robertson, A. G. April 9, 1924. Razors, safety. A safety razor comprises a blade having one or more cutting edges 2 and a number of guards 3 stamped up from the blade intermediate the sides thereof and bent back over the face of the blade and extending beyond the cutting edge or edges. The handle 1 may be formed integrally with the blade and guards by bending the metal into loop form between the cutting edges; the handle may be arranged at an angle to the cutting edges.
Patent GB-683553-A (GB)
Title: Improvements in or relating to collapsible tubes and other containers having screwed nozzles adapted to be closed by caps
IPC: B65D35/12
Filed: 1950-04-12
Abstract: 683,553. Spouts for cans; collapsable tubes. DALE, Ltd., J., and GIBLIN, A. A. April 12, 1951 [April 12, 1950], No. 8992/50. Class 66 A collapsable tube or rigid container 9 having a centrally located opening 10 in the end thereof has a nozzle or spout formed of a tube 1 of plastic material which is not completely rigid but retains a slight resiliency so that after being forced a predetermined distance through the opening the portion of the tube forced through the opening expands (as shown at 6) whilst an enlargement 2 on the end of the tube bears against the container on the opposite side of the opening. The container is provided with a recess 11 to receive the enlargement 2 and the recess may be milled or roughened to prevent rotation of the nozzle. The end of the nozzle may be threaded to receive a screw cap and conical surfaces to facilitate entering the nozzle provided on it and on the container as shown.
Patent GB-772180-A (GB)
Title: Improvements relating to hydraulically-operated machine tools
IPC: F15B13/04
Filed: 1954-03-29
Abstract: 772,180. Hydraulic machines; piston valves. JONES & SHIPMAN, Ltd., A. A., and HOULDSWORTH, J. June 6, 1955 [March 29, 1954], No. 9108/54. Addition to 666,996. Classes 69 (2) and 135. The hydraulic control system of the parent Specification is modified in that the shock eliminating ports of the reversing valve comprise two star-shaped ports 4. The ports 4 are formed in a sleeve 3 mounted in a bore of the valve block 1. Star-shaped ports are formed opposite each port 4 to balance the valve member. Circular ports 6, 7 are also provided and communicate' with either the supply and exhaust lines or with the motor lines. The ends of the bore may be closed by caps 10, or the sleeve 3 may extend to the ends of the bore and the valve stem have lands sealing the ends of the sleeve. Lands co-operating with the ports may be formed separately from the valve stem and have slight radial play therewith.
Patent GB-686692-A (GB)
Title: Improvements in or relating to nitriles
Filed: 1950-04-13
Abstract: Halonitriles and/or unsaturated nitriles are made by a catalytic reaction between an olefine and cyanogen chloride or bromide. Catalysts are mixtures or complexes of metal halides or of hydrogen fluoride with nitro-hydrocarbons.  Preferred halides are tin tetrachloride, zinc and aluminium chloride, boron trifluoride and aluminium bromide.  Olefines may be mono-, cyclo-, di- and conjugated di-olefines.  At above about 25 DEG  C. the halo-nitrile made by the addition of the cyanogen halide to the olefine is dehydrohalogenated to provide an a ,b - rather than a b g -unsaturated nitrile. Halonitriles are best made at below 25 DEG  C.  In examples, cyanogen chloride is reacted with (1) 1- and 2-butene, propene, cyclohexene, 1-octene and 1-dodecene; (2) and (4) propene; (3) cyclohexene; (5) and (13) 1-butene; (6) 1-octene; (7) 1-dodecene; (14) ethylene; and (15) 2-butene in the presence of a complex of aluminium chloride with nitromethane and in (16) and (17) with 2-butene in the presence of a boron trifluoride-nitromethane complex, and cyanogen bromide is reacted with (8) and (9) dipentene; (10) and (12) cyclohexane, and (11) 1-octene in the presence of an aluminium bromide-nitromethane complex, the products being the corresponding halo- and/or unsaturated nitriles according to the temperature of reaction. Inert solvents, e.g. carbon disulphide and monochlorobenzene may be present.