baber/WOPTO huggingface dataset:
Patent GB-443277-A (GB)
Title: An improved method of conveying threads, filaments or the like
IPC: B29D99/00
Filed: 1935-04-25
Abstract: <PICT:0443277/IV/1> A method of conveying a plurality of threads or filaments, wherein the threads or filaments are prevented from touching one another, comprises passing the threads over one or more rotating pull-rolls 18 each of which is provided with a plurality of spaced circumferential ridges 19 and contacting each thread with the circumferential surface of a separate ridge, which surface is wetted by a liquid such that the weight and/or tension of the thread is insufficient to overcome the forces, presumably surface tension, tending to maintain it riding on the circumferential surface as the roll rotates.  The liquid which wets the ridges may accompany the threads from a prior operation such as a coagulating operation as in the manufacture of threads of rubber, cellulose or cellulose derivatives by extrusion of a solution or dispersion thereof into a coagulant.  Alternatively the threads may reach the pull-rolls in a dry condition and a suitable liquid be applied to the surface of the roll.  Each ridge is preferably relatively narrow compared with the distance between adjacent ridges.  The top surfaces of the ridges may be concave, convex or flat.  The sides of the channels 20 between the ridges are preferably normal to the axis of the pull-roll in order to allow a thread, if in a channel and moved to a corner position, to automatically ride up onto the adjacent ridge, but the sides may be at an angle to the axis or curved.  The pull-roll may be fixed to a driving shaft by means of mounting collars 21, 22.  Wipers may be maintained in contact with the rotating pull-roll to remove excess of the liquid.  The pull-rolls are preferably placed relatively close to one another and to the apparatus for the various consecutive operations in order to minimize the undesirable effect of the swinging of the threads as they pass between consecutive pull-rolls or between a pull-roll and a manufacturing operation. The pull-roll may be made from a hollow cylinder or from a series of thin disc-like members with spacers therebetween.
Patent GB-988234-A (GB)
Title: Improvements in or relating to flocking apparatus
Inventor: LANE FREDERICK HENRY
IPC: H04N9/09
Filed: 1961-04-07
Abstract: 988,234. Sliding window runs. DUNLOP RUBBER CO. Ltd. March 21, 1962 [April 7, 1961], No. 12492/61 Heading E1J. [Also in Division B2] A sliding window sealing strip for a glass run comprises strip 14 of W-section of plastics having a rubber solution applied to it, dried and then sprayed with adhesive composition in sequential stages, and then pile fibre flock is applied to it under electrostatic conditions (see Division B2).
Patent GB-662248-A (GB)
Title: Improvements relating to windows
IPC: E06B3/46
Filed: 1949-05-11
Abstract: 662,248. Windows. RAWLINGS MANUFACTURING CO., Ltd., HUDSON, H. W. A., and BUTLER, L. T. May 11, 1950 [May 11, 1949], No. 12552/49. Class 20(iii) A window comprises a lower fixed pane 3 surmounted by a horizontally slidable upper pane 4 associated with one or more similar panes 5, which may be slidable or stationary, supported in an embracing structure 1 having a horizontal cross-piece 2 between the upper and lower panes which is in combination with an upper pane carrier 8, the lower horizontal limits of which is removably seatable upon the upper surface of the cross-piece 2, and a removable buttressing or wedging strip member 9 adapted to be housed between the carrier limits and a retaining edge 16 of the cross-piece, whereby the upper pane or panes are readily removable bodily from the structure without disturbing the window structure or lower pane. The lower part of the pan 1 and the underside of the cross-piece 2 are shaped to receive a channel-shaped strip 6 which receives the fixed pane 3 and is secured in position by a flexible strip 7. The panes 4 and 5 are framed and slidably mounted in a frame supporting member 1a having guide ribs or tracks 12 for the upper horizontal limbs 13 of the channel-shaped strips engaging the edges of panes 4 and 5, and the member 8 is upwardly channelshaped with its side walls 10 acting as guide ribs for the lower horizontal limbs 11. The cross-piece 2 has an inverted L-' shaped flange 14 and the underside of the member 8 has a counterpart L-shaped flange 15 so that the member 8 can be slid into position with the flanges 14, 15 interlocking and secured by the strip 9. To remove the upper panes, the strip 9 is removed, the carrier 8 retracted from its seating and lowered away from the opening in the pan, and the panes lifted from the tracks 10. The underside of the crosspiece 2 may be modified, having a downwardly facing channel 17 for the pane 3, as in Fig. 6, or a rib 20 on its underside to receive one channel of a double channel framing bar 19, the other channel 18 of which receives the edge of pane 3, as in Fig. 8, or may have a flat underside and be screwed to the wooden frame containing the pane 3. A double glazed window may be formed as in Fig. 10, where in addition to the pane 3 a second pane 23 is carried in a metal channel frame 24. the latter having a depending flange 27 and being secured by a wedging strip 25 fitted between flange 27 and rib 28 on the pan 26. The corners of the pan and panes may be square or curved.
Patent GB-832486-A (GB)
Title: New compositions of matter for use in making up and replenishing baths for application of chemically-bonded coatings to the surface of aluminium
IPC: C23C22/38
Filed: 1957-12-16
Abstract: A make-up or replenishment material for the aluminium coating baths disclosed in Specification 832,485 comprises sources of fluoride and the alkali metals sodium and potassium in a ratio of 0.0065-0.0455 mols of total alkali metal per gram of fluoride. The sodium and potassium are preferably present in molar proportions of 10-90% sodium, the remainder being potassium.  The four materials given by way of example comprise fluorides and bifluorides of sodium and potassium, and in one case, cryolite.
Patent GB-569333-A (GB)
Title: Improvements in or relating to the extraction of fibrous plant materials
IPC: D01B9/00
Filed: 1938-04-28
Abstract: <PICT:0569333/IV/1> Fibrous plant material, e.g. flax straw, is first subjected to a treatment in an aqueous or solvent bath or solution for removal of mineral matter, then to treatment at an elevated temperature, e.g. 60-125 DEG  C., with a solution containing an emulsifying agent, which is not readily precipitated by alkaline earth salts, and a reagent which gives calcium or other alkaline earth metal salts of low solubility, this solution being insufficiently strong or insufficiently alkaline to produce separation of the ultimate fibres.  The initial alkalinity is preferably not greater than a pH value of 11.5.  The material is then subjected to mechanical treatment to separate epidermal and other tissues.  The first treatment may be a dilute acid treatment and hydrochloric, nitric, hydrofluosilicic, or mixtures of these with sulphuric or acetic acid may be used.  Instead of acid there may be used sodium hexametaphosphate or other complex phosphate.  In the case of freshly-pulled flax, the first treatment may be a leaching with water.  For the second treatment, sodium phosphates may be used with sulphonated castor oil, or sulphonated linseed or sperm oil, or sulphonated oleic acid or fatty alcohols.  The solution is preferably slightly alkaline.  The second treatment may be preceded by a preliminary treatment with a mild alkaline solution containing a phosphate or carbonate.  In the second treatment, sodium thiosulphate may be present.  The mechanical treatment for removal of epidermal tissue may be a squeezing, stroking or brushing treatment.  It may be effected by passing the material through a series of pairs of rollers adjusted to run at different speeds and at the same time subjecting the material to washing with water or a solution such as is used in the first stage.  As shown in Fig. 1, apparatus for carrying out the third stage of the treatment comprises pressure roll pairs 3, 4, 5, 6, preferably covered with rubber, soft rubber being used for the upper rolls except for the last which may be covered with hard rubber.  The lower rolls may have a hard covering.  Brushing or stroking rolls 13, 14, 15 have peripheral speeds greater than that of the pressure rolls.  Jet conduits 16 are provided above and between the roller pairs.  The jet openings may be adjusted by rotating a slotted tube 16a over the fixed slotted tube 16b.  Liquid from one jet may be collected and pumped to the following jet preferably after filtration.  Rolls 13 may be provided with intermeshing rubber strips 26 which stroke the straw, and rollers 14 may have rubber strips with closely-spaced rubber teeth which brush or stroke the straw.  Felt or similar covering may be provided on the roll pair 15.  A supply conveyer 27 and discharge conveyer 28 may be provided.
Patent GB-1089257-A (GB)
Title: Improvements in or relating to pivot assemblies
IPC: H01H71/04
Filed: 1965-03-25
Abstract: 1,089,257. Electrically tripped switches. MURRAY MANUFACTURING CORPORATION. March 25, 1965 [April 7, 1964], No. 12661/65. Heading H2B. [Also in Division E2] In an electromagnetically released circuitbreaker an electromagnet EM is arranged to close the air gap AG when the circuit is overloaded by moving a pivoting member A 1 , A 2  so that a trip lever TL can move past a lip LL under a force F. The pivoting member A 1 , A 2  pivots about edges which are offset from the centre of gravity of the said member so that it is normally biased to restrain the trip lever TL. The pivot arrangement biases the pivoting member in this direction regardless of the attitude of the circuit-breaker, even when the pivot axis is vertical.
Patent GB-528156-A (GB)
Title: Improvements relating to vacuum cleaners
IPC: A47L9/22
Filed: 1939-04-28
Abstract: 528,156. Motor mountings. THABUR INDUSTRIELLE EN TECHNISCHE HANDELSMAATSCHAPPIJ N.V. April 28, 1939, No. 12794. Convention date, April 30, 1938. [Class 35] The motor unit of a vacuum cleaner is elastically supported at two points within a housing and the distance between the two points is adjustable. The motor and fan unit 1 abuts at one end against a rubber ring 3 and at the other end is supported by a fastening strap 7 threaded at 10 to receive a screw 11 which carries a freelyrotatable cap 12 fitting over a rubber cushion. The ends 8 of the strap 7 engage hooks 9 secured inside the housing so that when the screw 11 is tightened, the strap ends engage the hooks. Alternatively, the strap may have forked ends engaging abutments on the housing, or a bayonettype joint may be used. The adjustment may be provided at the ends of the strap. The strap may have more than two arms or it may be an apertured disc.
Patent GB-471275-A (GB)
Title: Improvements in or relating to means for controlling yarn in cop form within shuttles
IPC: D03J5/24
Filed: 1936-05-07
Abstract: 471,275. Loom shuttles. PREMIER WATERPROOF & RUBBER CO., Ltd., and RIDINGS, S. May 7, 1936, No. 12924. [Class 142 (iii)] A cop is held yieldingly within the shuttle by a number of resilient fingers 1, e.g. of rubber provided on the base or on the cover 4a of the shuttle or on both and the yarn issuing therefrom is tensioned by a guide 3 having a vertical slit 3a. The fingers 1 and guide 3 may be mounted separately in the base of the shuttle or in a strip 2 that can be attached to the base or the cover by means of adhesive. The strip 2, fingers and guide may be formed' as an integral unit. The shape and disposition of the fingers 1 may be varied.
Patent GB-399905-A (GB)
Title: Improvements in sizing textile fibres
IPC: D06M15/333
Filed: 1932-05-06
Abstract: Textile fabrics, for example artificial silk, are sized with a mixture of polyvinyl alcohols or their water-soluble derivatives, in which the viscosity in aqueous solution of one component differs from that of another.  The polyvinyl alcohols may be made by saponifying polyvinyl acetates, prepared for example by heating vinyl acetate with sodium perborate and acetic anhydride in the absence of a solvent or diluent, polyvinyl chloracetate and interpolymers made from equimolecular quantities of vinyl acetate and vinyl chloracetate.  The water-soluble derivatives of polyvinyl alcohol include the product of reaction of an alkylene oxide with polyvinyl alcohol, polyvinyl alcohol partially esterified with lauric acid, polymerized methyl vinyl ether, partially saponified polyvinyl acetate still containing one-third of the acetyl groups and soluble in both water and ethanol, and polyvinyl alcohol partially condensed with maleic anhydride made by interpolymerizing equimolecular quantities of vinyl chloride and maleic anhydride and saponifying with sodium hydroxide. Substances such as borax, sodium carbonate, glucose, cane sugar, polyglycerine, urea-glycerine condensation products, triethanolamine, and water-soluble carbohydrate derivatives such as dextrin, methyl cellulose or dimethoxytrioxyhexane made by catalytic reduction of methyl cellulose, may be added to the size. Specification 382,785 is referred to.ALSO:Textile fabrics, for example artificial silk, are sized with a mixture of polyvinyl alcohols or their water-soluble derivatives, in which the viscosity in aqueous solution of one component differs from that of another. The polyvinyl alcohols may be made by saponifying polyvinyl acetates, prepared for example by heating vinyl acetate with sodium perborate and acetic anhydride in the absence of a solvent or diluent, polyvinyl chloracetate and interpolymers made from equimolecular quantities of vinyl acetate and vinyl chloracetate.  The water-soluble derivatives of polyvinyl alcohol include the product of reaction of an alkylene oxide with polyvinyl alcohol, polyvinyl alcohol partially esterified with lauric acid, polymerized methyl vinyl ether, partially saponified polyvinyl acetate still containing one-third of the acetyl groups and soluble in both water and ethanol, and polyvinyl alcohol partially condensed with maleic anhydride made by interpolymerizing equimolecular quantities of vinyl chloride and maleic anhydride and saponifying with sodium hydroxide. Substances such as borax, sodium carbonate, glucose, cane sugar, polyglycerine, urea-glycerine condensation products, triethanolamine, and water-soluble carbohydrate derivatives such as dextrin, methyl cellulose or dimethoxytrioxyhexane made by catalytic reduction of methyl cellulose, may be added to the size.  Specification 382,785 is referred to.
Patent GB-131217-A (GB)
IPC: F03G1/08
Abstract: 131,217. Cameron, D. Nov. 30, 1918. Spring powerstoring mechanism. -The w i n d i n g ratchet is made noiseless. The pawl F for the ratchetwheel G is a spring strip and has a finger F' extending over the face of the wheel. A loose cam J under the finger is pressed against the ratchet-wheel by a helical spring K. Owing to the friction between the cam and wheel, the former is turned under the finger just enough to lift the pawl clear of the teeth while the winding torque is applied.
Patent GB-181571-A (GB)
Title: Improved materials for purifying acetylene gas
IPC: C07C7/148
Filed: 1921-05-09
Abstract: To basic materials such as a mixture containing ferric oxide and chloride, used for removing phosphoretted and sulphuretted hydrogen from acetylene, is added a copper compound such as copper hydrate or chloride to act as a catalyst.  The mixture is incorporated with kieselguhr, and to it, in addition to the copper compound, may be added a small proportion of mercuric chloride. Improved results are obtained if the mixture is kept for some months before use; when exhausted it is revivified by exposure to the air.
Patent GB-182769-A (GB)
Title: Improvements in and relating to electric relays
IPC: H01H47/12
Filed: 1922-05-10
Abstract: 182,769. British Thomson - Houston Co., Ltd., (Assignees of Brown, H. W.) July 5, 1921, [Convention date]. Electromagnetic switches; protective arrangements.-A sensitive relay adapted to operate in response to current or voltage above or below a predetermined value, or to reverse power, comprises a number of polar projections, a pivoted armature between them, and a winding to control the flux of the armature, the flux path being locally restricted in area so as to be easily saturated, whereby the retentivity of the circuit is reduced and abnormal currents in the winding do not cause reversal of the polarity of the polar projections. As shown in Fig. 1, the pivoted armature 1 is energized by the windings 2 carrying the current of the circuit 7 to be protected and can move towards either the poles 3, 4<1>, or 4, 3 polarized permanently or by a voltage winding 6 on the core 5. Poles 3, 3<1> are of the same polarity and opposite to the polarity of 4, 4<1>. A constructional form is shown in Fig. 2, in which the equivalent parts are lettered as in Fig. 1. The core 5 constitutes an enclosure for the relay, the armature of which has holes cut in it to restrict the flux path and has a pivotal axis at rightangles to the ribbon-wound, two-part winding 6. The armature is controlled by an adjustable spring, one end of which hooks into a hole in a pin 11 extending from the armature. The pin projects through a detachable cover-plate 14 and carries a contact 12 which, when the current in the coils 2 is reversed or reduced below a predetermined value, moves into engagement with the contact 16. By mounting the finger 16 on the opposite side, contact is broken instead of made. Both windings may be voltage-controlled and the magnetic structure may be excited by a constant battery voltage. The armature may be arranged to control a different circuit on either side of the zero position and the spring control may be independent and independently adjustable for the two directions of movement. As shown in Fig. 5, the armature pin 11 carries a contactactuating roller 13 serving to operate one or other of two spring-pressed contact-fingers 23, 23<1> loosely mounted on a screw 26, Fig. 4, and connected to the contact block 29 by the spring 28. The pin has pivoted upon it a control lever 30 moving about the pivot 31 against the action of the spring 34 in one direction and about the pin 32 against the action of the spring 34 in the other direction. With this construction, excess current in the normal direction operates one set of contacts whereas, reverse current operates the other. In a modification, shown diagrammatically in Fig. 8, no separate flux is provided for the armature, but the series coil 46 by increasing the strength of two of the polar projections 41, 41', 42, 42<1> and weakening the other two causes the movement in one direction or the other of the contact-carrying armature. The flux path of the core 43 is restricted by cutting away holes in the core. Specification 172,717 is referred to.
Patent GB-560182-A (GB)
Title: Improvements in or relating to boiler installations
IPC: F22B37/56
Filed: 1942-09-21
Abstract: 560,182. Feedwater supply systems. BOBY & CO., Ltd., W., and BOBY, W. V. Sept. 21, 1942, No. 13299. [Class 123 (ii)] Steam from a flash chamber 12 for the boiler blow - down delivered to the chamber under the control of a valve 11 is supplied through a pipe 18 to a feedwater de-aerator 19 in excess of the amount required to raise the feedwater to boiling point. The excess passes through a pressure-control valve 32 and a flow indicator 33 to a direct-contact preheater 21 for the make-up. Further steam necessary to raise the make-up to atmospheric boiling point is supplied from a turbine bleed point under the control of a thermostatically operated valve 35 as described in Specification 559,757. The make-up is supplied through a pipe 17 and passes through a heat-exchanger 16 in the outlet pipe for the blow-down concentrate. The heated make-up enters the de-aerator through a float chamber 24. The main condensate enters through a pipe 30. Excess of the continuous blow-down flows into a tank 42 and is delivered by a pump 45 into the base of the preheater 21, or the excess may be taken off between the flush chamber and drain trap .14 and delivered directly to the bottom of the preheater.
Patent GB-438120-A (GB)
Title: Improvements in hydraulic braking and lifting apparatus for vehicles
IPC: B60T11/10
Filed: 1934-05-02
Abstract: 438,120. Reciprocating pumps. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., Cricklewood, London, and ECKFORD, F. G., Wynneford, St. Bernards Road, Olton, Warwickshire. May 2, 1934, No. 13312. [Class 102 (i)] [See also Groups XXXIV and XXXI] A pressure-boosting device in the form of a hydraulically actuated pump is interposed between the pedaloperated master-cylinder of a vehicle hydraulic brake system and lifting- jacks for the wheels whereby the master cylinder may operate the jacks when desired. The pressure boosting device 21 comprises integral low and high pressure pistons 23, 24. Bearing on each piston under the action of a spring 32 is the flange of a sleeve 28 slidable on a fixed spigot 30, apertures 42 being provided in the flanges whereby the device serves to damp the motion of the pistons. The high pressure cylinder 26 is connected by port 38, a suction valve 39, and pipe 19<1> to a reservoir and by port 40, and delivery valve 41 to pipe 19 leading to the jacks. By operating lever 36 a spring-pressed valve is unseated to open the connection of pipe 22 leading from the master cylinder to the low pressure cylinder 25 and then by repeated operation of the pedal the pistons are reciprocated to supply the jacks. An air release valve 37 is provided for the cylinder 25.
Patent GB-1301198-A (GB)
Title: Method of embossing plastics film and manufacturing a bag structure
Inventor: BUSTIN FRANZ
IPC: B31B19/88
Filed: 1970-03-19
Abstract: 1301198 Embossing MOBIL OIL CORP 19 March 1970 [20 Mareh 1969] 13336/70 Heading B6J A web of flexible plastics material (e.g. polyethylene) of one or more plastics films each less than 0À025 mm. thickness is emboseed between a pair of embossing rollers having on their respective surfaces positive and negative embossing patterns and whose circumferential speed is controlled to avoid strain on the web. In an embodiment, Fig. 6, a web of connected bags is produced by embossing a tubular web between rollers 25 and 26 whose speed is controlled by a unit 27. The control unit is also connected to tensioning roller 24 and pull-off roller 28 such that the speed of the web as it is applied to and withdrawn from the embossing rollers may be regulated. The web is preferably fed to and pulled from the embossing rollers at a speed higher than the circumferential speed of these rollers. The embossed web may be filled with air between roller sets 30 and 31 in order to separate the layers and then provided with transverse heat seals and tear lines at station 32 to complete the web of bags. In a further embodiment (Fig. 7, not shown) a single layer web is embossed and subsequently folded longitudinally to provide the tubular structure for forming into bags. In this case each half of the web is provided with a different pattern using an embossing roller bearing separate pattern areas 50, 52. The embossments may be in the form of truncated pyramids.