baber/WOPTO huggingface dataset:
Patent GB-1074111-A (GB)
Title: Processes useful in the manufacture of bleached pulp
Inventor: RAPSON WILLIAM HOWARD
IPC: D21C9/14
Filed: 1964-04-02
Abstract: A process for producing bleached pulp from cellulosic material, e.g. wood chips, grasses, straw and bagasse, comprises producing an alkaline liquor containing sodium carbonate and sodium sulphide, treating at least a part of the alkaline liquor to remove part of the sodium carbonate and/or to convert at least part of the sodium carbonate to sodium hydroxide by causticization to provide an aqueous solution rich in sodium sulphide and/or an aqueous solution containing sodium sulphide and sodium hydroxide, using at least a part of either of these latter aqueous solutions for the cooking of cellulosic material to produce a pulp, producing sodium sulphate, chlorine and chlorine dioxide from sulphuric acid, sodium chloride and sodium chlorate, using the chlorine and chlorine dioxide in a multistage bleaching of the pulp, using at least a part of at least one of the alkaline liquor, the aqueous solution containing sodium sulphide and sodium hydroxide and the aqueous solution rich in sodium sulphide, for extracting the partially bleached pulp from an earlier stage in the multi-stage bleaching process, and using the sodium sulphate together with the used liquor from the cooking of the cellulosic material for producing the alkaline liquor.  The sodium chlorate may be produced by the electrolysis of an aqueous solution containing sodium chloride.
Patent GB-1470574-A (GB)
Title: Resin processing method
IPC: B29B13/06
Filed: 1974-03-28
Abstract: 1470574 Drying thermoplastic particles MONSANTO CO 28 March 1974 13778/74 Heading F4G [Also in Division C3] An apparatus for drying particulate thermoplastic polymers comprises a horizontal stationary cylindrical chamber 12 with a heating jacket 16. The cylinder has an axial rotatable shaft 18 which is provided with radial arms 20 having at their ends, ploughs 22 which are designed to establish a converging mixing pattern of the resin particles towards the axis of the chamber whilst simultaneously forcing portions of the resin upwardly along the heated inner surface of the chamber so as to vaporize the moisture. The chamber is also provided with impellers 59 rotating at a speed greater than that of the ploughs, and mounted on shafts (not shown) extending radially and inwardly from the wall of the chamber. These effect centrifugal dispersion of the particles. Low pressure gas, which may be heated or cooled at 32, may be forced through by means of a low pressure pump 30 and inlet 26, and outlet 28. The trap arrangement 38 removes fine polymer particles entrained by the gas. Heating fluid for the jacket is circulated via conduits 34 and 36.
Patent GB-290226-A (GB)
Title: Improvements in or relating to electric drives for paper machines
IPC: H02P5/50
Filed: 1928-05-10
Abstract: 290,226. International General Electric Co., Inc., (Assignees of Allgemeine Electricitõts-Ges.). May 10, 1927, [Convention date]. Systems depending on the use of two or more motors; speed-maintaining system.-Groups of alternating current electric motors 9, 10, Fig. 1, driving different sections of paper-making machinery are supplied from a number of rotary converters 7, 8, one to each group of motors, all the converters being connected in common to variable voltage direct-current mains N<1>, P', and receiving excitation in common from constant voltage mains N', P<2>. There is a common starting-switch 11 and a common converter field regulator for the motors of each group. Known arrangements may be added for synchronizing the groups of motors. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following additional matter. Fig. 1 (Cancelled) shows one arrangement employing two groups 1, 2 of separately excited direct-current] motors supplied from variable voltage mains P<1>, N<1> which form part of a Ward Leonard set. The field windings of the group 1 are connected mutually in parallel and are controlled in common by a variable resistance 3. The group 2 is controlled in a similar manner by a resistance 4. Synchronizing interconnections may be provided between tappings of the motor-armatures. To maintain constant speed-ratio between different groups of motors differential gear devices 19, 20 are arranged as shown in Fig. 5 (Cancelled), the movement of the third wheels of the trains acting upon field regulators 21, 22 to correct the speed of the groups of motors 15, 17. This subject-matter does not appear in the Specification as accepted.
Patent GB-846741-A (GB)
Title: Method of and apparatus for loading pallets
IPC: B65G57/00
Filed: 1957-05-01
Abstract: 846,741. Packaging-machines. FOOD MACHINERY & CHEMICAL CORPORATION. May 1, 1957 [Sept. 28, 1956], No. 13840/57. Class 94(1). In a machine for loading pallets the load is first assembled on a support 34, Fig. 2, above the pallet P and the load and pallet are then pushed simultaneously by a member 26 so that the load is transferred to the pallet without any sliding motion relatively to the pallet. In the form shown the load support 34 comprises a plate, or a set of tines 35, pivoted on an axle 44 and normally biased by springs 48 to be clear of a pallet P inserted under the support by a conveyer 28. Stacks of boxes formed in a handling machine 12 are pushed from a rollerway 22 by a member 26, depressing the supports 34 against the springs 48 to engage the pallet P. Each successive stack of boxes pushes the previous stack further on to the support 34 until a full pallet load rests on the support 34, when the member 26 makes a longer stroke so pushing the load off the support 34 and simultaneously pushing the pallet P from under the support to receive the load. The pusher 26 is guided by members 54 and operated by a ram 28. It engages the pallet at one side by a member 68 and at the other side by a hinged pawl (not shown), which arrives over the outside wall of the rollerway 22 to swing inwardly to engage the side of the pallet.
Patent GB-762615-A (GB)
Title: A hydraulic speed change gear
IPC: F16H61/40
Filed: 1954-05-12
Abstract: 762,615. Hydraulic couplings. CAMBI IDRAULICI BADALINI SOC. PER AZIONI. May 12, 1954 [March 8, 1954], No. 13846/54. Addition to 721,629. Class 69 (2). The hydraulic change-speed gear of the parent Specification is modified by providing a supplementary pump supplying liquid to the low-pressure side of the gear to prevent the formation of air bubbles, and by permitting escape of excess liquid from the gear, thereby assisting cooling. The distribution plate 12 of the gear is provided with distributing ports 5, 6 and a duct 1 to which liquid is delivered by a supplementary pump, the pressure of the liquid being sufficient to open a ball valve 3 or 4 to enter port 5 or 6 according to which is at the low-pressure side. Valves 7, 8 are moved by the liquid of the high-pressure port to close an exit from that port and to open the other port to a duct 2. If the pressure in duct 2 is high enough the liquid therein escapes past a ball valve 9.
Patent GB-165631-A (GB)
Title: Improvements in the mud-guards of motor-cycles
IPC: B62J15/00
Filed: 1920-05-20
Abstract: 165,631. Raleigh Cycle Co., Ltd., and Bowden, H. May 20, 1920. No Patent granted (Sealing fee not paid). Mud-guards. - A rear-wheel mud-guard for motor-cycles having spring frames is formed of two independent front and rear portions capable of relative movement, so as to avoid damage due to relative movements of the articulated parts of the spring frame to which the guard is secured. The rear portion A extends forwards to a point C, and is secured at H to the upper ends of the vertical frame members E. which support the carrier G and connect the free ends of the pivoted stays D to the free ends of the springs F. The rear portion A is also secured to the rear of the carrier G by one or more vertical stays J, and to the frame members E by a pair of horizontal stays K. The front portion B of the guard overlaps the rear portion A, and is secured to the stays D at M and connected by diagonal stays N to the free ends of the stays D.
Patent GB-909527-A (GB)
Title: Sight glass mountings suitable for pipes, pressure vessels and the like
Inventor: HARTLAND WILLIAM RAYMOND
IPC: G01F23/02
Filed: 1961-04-18
Abstract: 909,527. Indicating liquid levels. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 18, 1961, No. 13956/61. Class 123 (1). [Also in Groups XII, XX and XXVIII] A sight glass mounting for example for the inspection of fluid flow in pipes, the level of liquids in vessels and the behaviour of combustible materials in enclosed spaces comprises a circular aperture whose diameter changes at A-A and B-B, thus providing two annular supporting surfaces against which windows 7 and 12 of glass or other transparent material are screwed by threaded clamping rings 5 and 10 respectively, cushion rings 6 and 11 being provided between each clamping ring and the window, and resilient jointing rings 8 and 13 between the window and each annular supporting surface. The cushion rings may be of compressed asbestos fibre. A thin film of protective transparent material may be inserted between the jointing ring 13 and the window 12 to prevent etching of the glass by the contained fluid. A bolted-on flanged clamping ring may be used in place of each of the threaded clamping rings should the diameter of the windows exceed about 7 inches. As shown, two sight glasses are provided at opposite sides of a pipe fitting for observing fluid flow therein.
Patent GB-529050-A (GB)
Title: Method for the manufacture and production of curled monofil
IPC: D01D5/23
Filed: 1939-05-10
Abstract: 529,050. Artificial filaments. COURTAULDS, Ltd., and AVERNS, H. M. May 10, 1939, No. 13969. [Class 2 (ii)] Curled monofil is obtained by extruding a solution of a cellulose derivative downwards through an orifice into an evaporative atmosphere, directing a steady continuous current of evaporative medium on to one side of the extruded solution just below the orifice and allowing the resulting filamentary product to fall under its own weight, without subjecting it to any other tension, on to a collecting device. The cellulose derivative may be cellulose acetate and a solution of 25 per cent. strength may be used. Each jet may have one or more orifices through which the solution is extruded to form one or more curled monofils. When there are several orifices they are spaced so that the issuing streams of solution do not contact before a substantial proportion of solvent has evaporated. Warm air at 30-65C. may be used as the evaporative medium. The evaporative medium directed on to one side of the extruded solution may be at a higher temperature than that of the main bodyof evaporative medium. The cross current may be obtained by introducing air through a tube, the outlet of which is on one side of the extruded solution, or by applying suction to a tube situated on the opposite side of the solution. The monofil may be collected on a plate, box, platform, table, or transport belt. The collecting device may be heated. As shown, cellulose acetate solution is extruded through jet 2 provided with a single orifice 3 into air at a temperature of about 30C. circulated by means of inlet and outlet pipes 4, 5, through a cell 6. The falling monofil is collected on a slowly moving band 8. Air at 65C. is introduced through tube 9 and is directed against one side of the extruded solution.
Patent GB-328451-A (GB)
Title: Improvements in the construction of photo-electric cells
IPC: H01J40/04
Filed: 1929-05-04
Abstract: 328,451. Ellis, G. B., (Soc. des Usines Chimiques Rh¶ne-Poulenc). May 4, 1929. Vacuum tubes. - A photoelectric cell contains a cathode, an anode, and one or more auxiliary electrodes which are maintained at such a positive potential that they act as auxiliary anodes and accelerating electrodes thereby increasing the discharge current, the main anode being at a potential well below the sparking potential. As shown, an annular electrode 2 is mounted between the cathode 4 and an annular anode 3, which is connected through a galvanometer 7, a battery 6 of about 200 volts, and a resistance 5 of half-a-megohm, with the cathode, the electrode 2 being connected through a resistance 5 of 10À megohms and a battery 9 of about 100 volts with. the negative side of the battery 6.
Patent GB-1097204-A (GB)
Title: Improvements in or relating to continuous winding devices of yarn in spinning machines and creels
Inventor: GERHARDT WOLFGANG
IPC: B65H75/28
Filed: 1965-04-02
Abstract: 1,097,204. Cop tube. INSTITUT FUR TEXTILMASCHINEN. April 2, 1965, No.14093/65. Heading B8M. A cop tube for devices for the continuous winding of yarn in spinning machines and creels is characterized in that the tube is provided with a peripheral groove between the ends of the yarn package to be wound, yarn engaging teeth being situated within the groove and directed axially towards an end of the tube. The teeth are preferably inclined towards the direction of rotation of the tube and are disposed on a supporting ring anchored to a shoulder located in the groove. The edge of the groove which faces the teeth is preferably directed obliquely outwards.
Patent GB-1091549-A (GB)
Title: Preparation of halogenated aldehydes
Inventor: TAYLOR PETER JOHN MEDDOWS
IPC: C07C45/42
Filed: 1965-04-02
Abstract: Urea-aldehyde polymers are obtained by heating a compound of the formula R.R1.CH.CHO wherein R is a chlorine atom or a -CF3, CF2Cl or -CFCl2 group and R1 is a -CF3 o -CF2Cl group with urea.  The aldehydes 3,3,3-trifluoro - 2 - trifluoro - methyl - propanal and 3,3,3 - trifluoro - 2 - chloropropanal give, with urea, resins which are soluble in polar solvents and which are stable to 150 DEG  and 200 DEG  C. respectively.ALSO:Production of compounds of the formula R.R1.CH.CHO wherein R is a chlorine atom or a -CF3, -CF2Cl or -CFCl2 group and R1 is a -CF3 or CF2C group by reacting a compound of the formula R.R1.C = CH.Cl with an alcohol, an alkoxide of an alkali metal, a primary amine, a secondary amine or ammonia as nucleophilic reagent and hydrolysing the intermediate so formed under acid conditions. The preferred nucleophilic reagents are secondary cyclic amines such as piperidine and pyrrolidine but an aliphatic alcohol such as methanol or ethanol in the presence of alkali; sodium methoxide or ethoxide; dimethylamine, diethylamine or anhydrous ammonia may also be used.  The reaction with such nucleophiles may be carried out at elevated temperature optionally in the presence of a suitable solvent. The vinyl ether, unsaturated amine or imine intermediates were isolated but not identified prior to hydrolysis with dilute acid such as hydrochloric or sulphuric acid or, with concentrated sulphuric acid at 50-100 DEG  C., particularly when the intermediate is a vinyl ether of the formula R.R1.C = CH(OR11) wherein R is a -CF3, -CF2Cl or CFCl2 group, R1 is a CF3 or CF2Cl group and R11 is an alkyl group.  The aldehydes of the above formula can be oxidized to the corresponding carboxylic acid, e.g. 3,3,3-trifluoro-2-trifluoromethyl-propionic acid, together with hexafluoroacetone and possibly trifluoroacetic acid are obtained by treating 3,3,3 - trifluoro - 2 - trifluoromethylpropional with aqueous hydrogen peroxide.  The preparation of 3,3,3-trifluoro-2-trifluoromethylpropanal, 2 - chloro - 3,3,3 - trifluoropropanal, 2,3 - dichloro - 3,3 - difluoropropanal and 3 - chloro - 3,3 - difluoro - 2 - trifluoromethylpropanal is described and the latter compound is claimed.  Intermediates mentioned are 1-methoxy-substituted 3,3,3 - trifluoro - 2 - trifluoromethylpropene and 2 - chloro - 3,3,3 - trifluoropropene, 1 - diethylamino - substituted 3,3,3-trifluoro - 2 - trifluoromethylpropene and 3-chloro - 3,3 - difluoro - 2 - trifluoromethylpropene, N - (2 - chloro - 3,3,3 - trifluoropropenyl)-and N - (2,3 - dichloro - 3,3 - difluoropropenyl)-substituted piperidine, and a trimer of 3,3,3-trifluoro-2-trifluoromethylpropylimine.
Patent GB-560678-A (GB)
Title: A fluid-operated pressure-applying tool
IPC: B21J15/10
Filed: 1942-10-08
Abstract: 560,678. Hydraulic presses. MILES, J., and NISSIM, R. Oct. 8, 1942, No. 14168. [Class 69 (ii)] In a fluid-operated pressureapplying tool in which lowpressure fluid is applied to one face of a differential piston, the approach stroke of the ram is effected at substantially the same pressure from a large area of the other face of the piston, and the power stroke is effected at increased pressure from the free end of the piston stem. In the form shown, compressed air, steam, gas or other compressible fluid, is supplied at 11 to one side of a differential piston 13, the other side of which is separated by oil, water, or other incompressible fluid 15 from a second piston 16. Downward movement of the piston 13 forces the oil 15 through a port 18 and passage 19 in the piston stem 20 into a chamber 21 causing a differential ram 23 to approach the anvil 25. Increased pressure of the oil 15 then displaces the piston 16, and, when the port 18 is closed by a valve 28 on the piston 13, the latter moves as a unit with the stem 20 to increase the pressure on the ram 23 for the power stroke. When the supply at 11 is cut off, the return stroke is effected .by springs 14, 17, 24, 30. Two or more such differential pistons may be arranged in series. In a modified form the tool head is connected to a pressure multiplier by flexible cables, the pressure being partially multiplied in the multiplier, and again multiplied in the tool head. The initial pressure retracts the ram, the partially multiplied pressure causes its approach stroke, and the full pressure causes the power stroke. The multiplier includes a pair of telescopic differential pistons arranged in parallel.
Patent GB-1136974-A (GB)
Title: Improvements relating to partitioning
Inventor: DUNN CHARLES FREDERICK KIKINNA
IPC: E04B2/78
Filed: 1966-03-30
Abstract: 1,136,974. Partitioning. TENON CONTRACTS Ltd. 30 March, 1966, No. 14171/66. Heading E1W. Integrally formed vertically extending rectangular sectioned support members 10 in partitioning, preferably of extruded metal, comprises two intersecting diagonals 13 carrying L-section parts at the corners of the rectangle spaced apart to define a central vertical slot 15 in each of the four faces of the support member, at least one wall member of the partitioning being supported by having opposite edge portions mounted in or engaging with connecting means mounted in the respective slots in said support members. The wall members may comprise panels 16 connected at each edge to a flanged connecting means 20 which engages in a slot 15, Fig. 2 or may comprise a glass pane 34 having each opposite edge mounted between resilient glazing strips 35, Fig. 4 which enter a slot 15. The upper edge of a wall member may support a transom 25, Fig. 5 extending horizontally between adjacent support members 10, and such transom may support the lower part of a further wall member. The upper part of a wall member may be mounted in or may engage connecting means mounted in a ceiling channel 42, Fig. 6 (not shown). A wall member may include a door which is hinged to a block secured to a support member 10 by means disposed within a slot 15.
Patent GB-1110368-A (GB)
Title: Cyanoimidoformic acid thioesters
IPC: C07C/
Filed: 1966-03-30
Abstract: The invention comprises thioesters of cyanoimidoformic acid having the formula NC-C(:NH)-SR where R is an organic radical, e.g. an alkyl, alkenyl, aryl, aralkyl or heterocyclic group.  The compounds can be made by the reaction of a mercaptan, RSH, with excess dicyanogen, preferably in the presence of a catalyst which contains mercaptide ions or which reacts with RSH to give mercaptide ions or a catalyst which is an amine or quaternary ammonium compound.  Numerous catalysts are specified.  In the case of the catalyst being a compound of magnesium, aluminium or a heavy metal, the dicyanogen need not be used in excess of the mercaptan.  With other catalysts, excess mercaptan results in the formation of di-imidooxalic acid dithioesters. The reaction may be effected at temperatures in the range -30 DEG  to 150 DEG  C. and in the presence of an inert solvent or in the gas phase. Numerous examples are provided.
Patent GB-833491-A (GB)
Title: An improved process for the manufacture of creped fabric from synthetic fibres
IPC: D02G1/02
Filed: 1956-05-07
Abstract: Yarn composed of synthetic fibre is highly twisted in one direction, heated to set the twist, twisted in the reverse direction beyond the point of zero twist, the back twisted yarn being passed in a stretched condition through a size, e.g. a polyvinyl alcohol solution, and dried and a fabric is woven incorporating the yarn in at least the weft, the fabric being first partially desized at a temperature below 70 DEG  C. and then washed at a temperature above that of the partial desizing but below the setting temperature of the fibre, e.g. from 80 DEG  to 100 DEG  C., and the desized fabric is stretched to its final width and heat-set in this condition.  The latter heat setting may be effected at a temperature of 100 DEG  C. to 200 DEG  C. at a dry heat or with steam, e.g. by winding the fabric upon a perforated cylinder and treating in an autoclave, or by both dry heat and steam treatments.  The fabric may be subjected to a further heat treatment, e.g. with steam, to promote shrinkage.  The initial twist of the yarn may be in either direction and the woven fabric may be composed of yarns having both directions of twist.  The washing liquid may contain a detergent.  The yarns may be of nylon or a polyester.ALSO:Yarn composed of synthetic fibre is highly twisted in one direction, heated to set the twist, twisted in the reverse direction beyond the point of zero twist, the back twisted yarn being passed in a stretched condition through a size, e.g. a polyvinyl alcohol solution, and dried and a fabric is woven incorporating the yarn in at least the weft, the fabric being first partially desized at a temperature below 70 DEG  C. and then washed at a temperature above that of the partial desizing, but below the setting temperature of the fibre, e.g. from 80 DEG  to 100 DEG  C., and the desized fabric is stretched to its final width and heat-set in this condition.  The latter heat setting may be effected at a temperature of 100 DEG  C. to 200 DEG  C. at a dry heat or with steam, e.g. by winding the fabric upon a perforated cylinder and treating in an autoclave, or by both dry heat and steam treatments.  The fabric may be subjected to a further heat treatment, e.g. with steam, to promote shrinkage.  The initial twist of the yarn may be in either direction and the woven fabric may be composed of yarns having both directions of twist.  The washing liquid may contain a detergent.  The yarns may be of nylon or a polyester.
Patent GB-116433-A (GB)
Title: Improvements in and connected with Chip Baskets for Holding or Containing Fruit and the like.
IPC: B65D25/28
Filed: 1917-10-02
Abstract: 116,433. Pratt, J. G., and British Basket Co. Oct. 2, 1917. Baskets.-The handle D of a chip basket for fruit &c. is made of wood, cardboard, &c., and to it are attached flexible metal strips E for securing its ends to the basket. The ends of the handle are inserted between the inside lip-band B and the body of the basket, and the upper portion of each strip E is bent inwards to form a V-shaped hollow to receive the band B.