baber/WOPTO huggingface dataset:
Patent GB-680969-A (GB)
Title: Improvements in or relating to suction conveyor plant
IPC: B65G53/66
Filed: 1950-12-29
Abstract: 680,969. Pneumatic conveyers. MIAG VERTRIEBSGES. Dec. 29, 1950. [Jan. 2, 1950] No. 31577/50. Class 78 (i). The chamber 9 is clamped by flange 10 onto the outside of the pneumatic suction conveyer tube and is operated by shaft 16 counterbalanced by weight 25 and actuated by handle 27 or by a mechanical, electrical or pneumatic means. Rotation of shaft 16 causes the elevation of flap 13, flap 13 being secured by arms 15 to said shaft so that air rushes into chamber 9. Further rotation of shaft 16 causes flap 13 to abut against abutment 17 fixed on flap 11 (which is carried by arms loose on shaft 16) so that flap 11 rises and the latter, due to its link connecting 18 with cut-off flap 19, causes the latter to pivot about axis 20 and so to let air rush into the conveyer pipe to put it out of action.
Patent GB-464996-A (GB)
Title: Improvements in or relating to sound translating devices
IPC: H04R1/22
Filed: 1935-11-15
Abstract: 464,996. Acoustic wave filters. STANDARD TELEPHONES & CABLES, Ltd. Nov. 15, 1935, No. 31677. Convention date, Dec. 29, 1934. [Class 13] [Also in Group XXXIX] A sound-reproducing device as claimed in Specification 382,268 and in which an acoustic path, provided between the two sides of the diaphragm, has acoustic mass and stiffness so proportioned that the sound waves are reinforced at low frequency, comprises a case having an open end closed by the diaphragm, a partition member dividing the space behind the sound-translating unit into two chambers and formed with at least one passage connecting the chambers, and a tubular channel constituting a restricted sound-wave passage for enhancing the low-frequency response of the device and directly connecting one of the said chambers with the atmosphere outside the case. As shown in Fig. 1, the chambers 25, 26 are connected by a tapered hole 67 in the partition 27 and the rear compartment 26 communicates with the outside air by means of a coiled tube 72 associated with an apertured portion 76 formed in the rear wall 71 of the casing. In a modification, Fig. 6, the passage in the partition may be closed by resilient pad 124 operated by a button 138 outside the casing. The front chamber 102 has a radial passage 121 opening into a circumferential channel 116 with which is associated a ring 117 having an aperture of area equal to that of the passage 121 and of the cross-section of the channel 116. By rotation of the ring 117, the length of the channel 116 may be varied. In an alternative arrangement, Figs. 9, 10 (not shown), a ring similar to the ring 117, but preferably fixed, is mounted within the casing and the outlet to the atmosphere is formed in the casing itself. In a further modification, Figs. 13, 14 (not shown), the partition between the chambers is formed with a number of apertures covered on one side by a strip of acoustic damping material and variably obstructed on the other side by a slidable member operated from the outside of the casing.
Patent GB-728530-A (GB)
Title: Improvements in or relating to the removal of oxygen from gases and to the use of gases so treated
IPC: C10K3/00
Filed: 1952-12-15
Abstract: Substantially oxygen-free nitrogen, which has been prepared by passing nitrogen, containing small amounts (i.e. not more than 10 per cent) of oxygen, over finely divided coal at not exceeding 450 DEG C. or below the softening point of the coal if this is below 450 DEG C. (see Group III), is employed as an inert medium in the polymerization of lactams, e.g. caprolactam.  The oxygen content of the nitrogen is reduced to below 0.001 per cent.  The polymerization products are colourless, and filaments spun therefrom have good mechanical properties and are not subject to repeated breakage.ALSO:Free oxygen is removed from a gas, e.g. nitrogen, hydrogen, argon, and carbon monoxide, by passing the gas over a finely divided, i.e. not greater than 5 mm. grain size, coal at not exceeding 450 DEG  C., but below the softening temperature where a softening coal is used and continuing the treatment until a substantially oxygen-free gas is obtained.  Coal may be anthracite, bituminous coal, or lignite, of grain size 0.1-3 mm., and where the coal does not soften below 450 DEG  C. the treatment may be effected at 360-380 DEG  C. or where the softening temperature is 320 DEG  C. the treatment temperature may be 270-290 DEG  C. Alternatively, the temperature may be below 60 DEG  C., e.g. 45-50 DEG  C., but the activity of the coal is not maintained for so long. The gas contains not more than 10 per cent., preferably not more than 3 per cent. oxygen, and the content is reduced to less than 0.001 per cent.  The coal may be preoxidized, either by using it for effecting the process at below 30 DEG  C., or by leading air through.  In an example (1) preheated nitrogen containing oxygen is passed through meagre coal at 300-350 DEG  C. and then through silica gel.  Some carbon dioxide, carbon monoxide, or water vapour may be formed during the process. Nitrogen treated by the process may be used for ammonia synthesis, for analysis and as inert atmosphere during the polymerization of lactams.  Argon treated by the process is very suitable for arc welding.
Patent GB-1268118-A (GB)
Title: Method of preparing cationic starch compositions
Inventor: DISHBURGER HENRY JOSEPH
IPC: D06M15/61
Filed: 1969-06-24
Abstract: 1,268,118. Cationic starch. DOW CHEMICAL CO. 24 June, 1969, No. 31741/69. Heading C3U. A process for preparing a cationic starch comprises heating within the range of 70- 110‹C. for a time of 0.5-5 hours a mixture which comprises, on a total solids basis, 0.5- 40% by weight of a polyalkyleneimine or a polyalkylenepolyamine having a molecular weight of at least 50,000 and from 60-99.5% by weight of starch or a starch derivative.
Patent GB-1144837-A (GB)
Title: A hypodermic needle package
Inventor: ISHII ICHIRO
IPC: B65D75/32
Filed: 1967-07-11
Abstract: 1,144,837. Hypodermic needle packages. JINTAN TERUMO CO. Ltd. 11 July, 1967 [12 July, 1966], No. 31866/67. Heading B8C. A sterile blister package for hypodermic needles comprises a base board 4 of kraft paper or the like 1 with an outer coating of a film 3 having minute perforations, the arrangement acting as a bacteriological filter but permitting ingress of sterilizing gas. The blister may be attached by adhesive or may, if a polycarbonate film is used, have an inner polyethylene layer for heat sealing purposes. The perforated film prevents moisture reducing the effectivness of the paper as a filter.
Patent GB-866546-A (GB)
Title: Improvements in or relating to electric inductors and transformers
IPC: B01J37/02
Filed: 1957-10-11
Abstract: 866,546. Inductors and transformers. AMERICAN MACHINE & FOUNDRY CO. Oct. 11, 1957 [Oct. 12, 1956], No. 31918/57. Class 38 (2). An inductor or transformer comprises a plurality of single layer spirally wound coils of insulated metal ribbon 16, 52, 54, which are interconnected by flat conducting members such as 26 or 56 which may be provided with extending portions which act as terminals. In one embodiment (Figs. 2 and 3) each coil is wound on an insulating former 18<SP>11</SP> disposed on a leg of a laminated magnetic core. Each member 26 is sandwiched between insulating members 18<SP>1</SP>, 18<SP>11</SP> and has a tab 40 which contacts the innermost turn of a coil and a projection 28 which receives conducting rods 24 which interconnect the coils and also act as terminals. Connection to intermediate points in a coil may be made by bent conducting members 42. The unit is assembled in a metal container which may be filled with resin. The members 26 may be formed by printing or etching, may be of various shapes, and may be provided with tabs for contacting both adjacent coils. They may also be provided with projections which are connected to conducting portions printed on an insulating sheet instead of to rods 24 (Fig. 5, not shown) or these projections may be bent to various shapes to act as terminals. The members 56 may also be increased in area to conduct heat away from the coils. The coils may be of metal ribbon insulated with paper or varnish. The transformer may be impregnated with or cast in epoxy resin.
Patent GB-1018879-A (GB)
Title: Non-curling multilayer material
IPC: G03C1/81
Filed: 1963-08-13
Abstract: 1,018,879. Non-curling photographic material. GEVAERT PHOTO-PRODUCTEN N.V. Aug. 13, 1963 [Aug.14, 1962], No. 31920/63. Heading G2C. Photographic material which does not curl either before or after processing comprises a support carrying a silver halide emulsion layer on one side and a water-permeable colloid layer on the other such that, after processing, the tensile forces on the back and front of the support are equal, the backing layer also containing particles of a macromolecular compound which is removed during processing, the compound being present in such an amount that, before processing, the tensile forces on the back and front of the support are equal. The reduction in the tensile forces in the front layers due to removal of silver halide and/ or silver during processing is compensated by the removal of the macromolecular compound from the backing layer. The macromolecular compound may be one which is soluble in acid fixing baths such as vinyl polymers having amino, ancilino, pyridyl, quinolyl, imidazolyl or pyrimidyl groups on the polymer chain, poly (N, N-dialkylaminoalkyl acrylates) or poly [N<SP>1</SP>, N-di (alkylaminoalkoxyalkyl)acrylamides], or one which is soluble in alkaline developer baths such as copolymers of acrylic, methacrylic, crotonic, maleic, fumonic, itaconic or citiaconic acids. The polymers may be copolymerized with unsaturated monomers such as styrene, vinyl chloride, vinylidene chloride, vinyl acetate, acrylic or methacrylic esters, acrylonitrile or methacrylonitrile. The colloid binder of the backing layer may be gelatin which may be mixed with butadiene/methyl methacrylate copolymer. Other colloids may be used.
Patent GB-969410-A (GB)
Title: Fluid flow control valve
Inventor: STEGHART FRITZ LUDWIG FELIX
IPC: G05D23/12
Filed: 1962-08-20
Abstract: 969,410. Valves. SATCHWELL CONTROLS Ltd. July 16, 1963 [Aug. 20, 1962], No. 31924/62. Heading F2V. A valve comprises a body 1, a part of which is formed by a substantially planar diaphragm 5. A lever assembly 2 has a part 6 extending inwardly from the diaphragm and carrying the valve closure 8 while a part 7 extends outwardly of the diaphragm. The lever is mounted on a pivot 3 arranged outside the body and parallel to the diaphragm. The valve is actuated by a temperature responsive actuator 12 having a rigid portion 13 and bellows 14. Movement of the bellows in response to expansion or contraction of fluid in the actuator is transmitted through an abutment 17, which is normally retained at predetermined distance from a cap 16 by a spring 18 and stud 19, but allows movement of the cap and bellows when the valve is closed in the event of an excess temperature. The abutment acts on the lever part 7 against a spring loading 11. The lever may be locked in the valve closed position by a cam. The lever part 7 is housed in a body 10 of heat insulating material which carries a reflecting fin 27. The actuator 12 is mounted adjustably on a ring 23 carried by fingers 24 and a cooling fin 26 is connected to the reflecting fin 27 by means of struts 28. The valve is used for controlling the supply of hot water to a domestic radiator.
Patent GB-371850-A (GB)
Title: Resin complex and method of producing the same
IPC: C08G8/28
Filed: 1930-10-24
Abstract: Resinous products are made by reacting a phenol with an aldehyde in the presence of an organic salt of a metal and an acidic natural resin, adding a polyhydric alcohol in quantity sufficient to form partial esters with such natural resin, heating the mass to effect reaction between such partial esters and the phenolmethylene-containing compound condensate and further heating until a resinous product of low acid number is obtained. Instead of the organic salt per se a metallic oxide, hydroxide or carbonate in the presence of the resinous acid substance may be used. Alternatively, the phenol and the aldehyde are condensed in the presence of the organic salt and the phenol-aldehyde complex heated with the natural resin and with the polyhydric alcohol or all the materials are reacted together from the start. The products have high melting point, low viscosity, excellent solubility and superior adhesive and film-forming properties and are suitable for use in varnishes.  Solutions in organic solvents withstand considerable dilution without precipitation, particularly when thinned with mineral spirits.  In examples (1) phenol or cresol or a mixture thereof, zinc oleate or rosinate (or the corresponding calcium) barium, strontium or sodium salts) and formaldehyde are heated in the presence of colophony and the product, after dehydration, is heated with glycerine; (2) the condensation product from phenol or cresol, zinc rosinate, formaldehyde and rosin is run into rosin which has been pre-heated to 150-250 DEG  C. and, after dehydration, glycerine is added and the temperature raised to 260 DEG  C.  Other salts specified are oleates, tungates, stearates and acetates &c. of calcium, strontium, barium, manganese, lead and cobalt and other natural resins used are manila, congo, kauri, copal and wood rosin. Specifications 259,030, [Class 2 (iii), Dyes &c.], and 370,916 are referred to.
Patent GB-503975-A (GB)
Title: Apparatus for making permanent hair-waves
IPC: A45D4/16
Filed: 1937-11-19
Abstract: 503,975. Automatic control systems. KALLMANN, S. Nov. 19, 1937, No. 31965. Convention date, Nov. 23, 1936. [Class 38 (iv)] [Also in Group XI] Temperature.-An oven 1 for heating clips 7 for use in permanent waving is provided with a heating unit having external projections or ribs which may he engaged by the clips. The unit is mounted for rotation on trunnions 25 through which current. is supplied to the resistance wires. A thermostat arranged in one trunnion may be regulated by a button arranged on the outside of the oven.
Patent GB-733937-A (GB)
Title: Improvements in semi-automatic hydraulic gear change mechanisms
IPC: F16H61/02
Filed: 1952-12-18
Abstract: 733,937. Controlling change-speed gearing. AUSTIN MOTOR CO., Ltd., and HARRIS, D. P. Dec. 16, 1953 [Dec. 18, 1952], No. 32054/52. Class 80 (2). A control system for the change-speed gear and main clutch of a motor vehicle comprises a primary hydraulic circuit including in sequence an engine-driven pump 10 with accumulator 11, a check valve 13, an operating cylinder 14 for the spring-engaged clutch, a restriction valve 17 with by-pass valve 18, and parallel branches 19, 20, 21 controlled jointly by a manually-operated selector valve 22 and a valve 23, and a secondary hydraulic circuit controlled by a valve 24 and leading from the pump 10 to a valve 25 connected to valve 22 and controlling supply of the fluid to opposite ends of a doubleacting gear-shift servo 26 to which valve 23 is connected. Valve 17 is closed at engine idling speed and opens as the speed is increased. Valve 18 is connected to valve 22 so as to be open only when the latter is in neutral position. Valve 24 is opened by a diaphragm 16 subject to the pressure in cylinder 14, or by the movement of the clutch piston. In the neutral position shown, servo 26 is in mid-position, valve 17 is closed but valve 18 is open, and valves 22, 23 allow free flow through branch 19 so that pressure in cylinder 14 is relieved and the clutch is engaged and valve 24 closed. On moving valve 22 to the left (or right), flow through branch 19 is prevented by valve 22 and flow through branch 21 (or 20) is prevented by valve 23, so that pressure builds up in cylinder 14, causing disengagement of the clutch and opening of valve 24. Since valve 25 has moved with valve 22, fluid now passes to the right-hand (or lefthand) end of servo 26, causing the latter and valve 23 to move left (or right) to engage the selected gear and open branch 21 (or 20), so that free flow through that branch is allowed, pressure in cylinder 14 is relieved, valve 24 closes and the clutch re-engages. If, however, the engine is idling, valve 17 is closed so that pressure in cylinder 14 is not relieved and the clutch remains disengaged until the engine is speeded up sufficiently to open valve 17. On returning valve 22 to neutral position, branch 21 (or 20) is closed by valve 22 and branch 19 remains closed by valve 23, so that clutch disengagement results. A conduit 27 branching from branch 19 between the valves 22, 23 and leading to a mid-port of the servo cylinder is controlled by a valve 28 which is opened with the valve 24. The servo piston has oppositelyinclined ports 29, 30 such that, after the clutch disengagement, the servo is returned to midposition, a central exhaust port being controlled by a valve 31 connected to valve 22 so as to be open only when the latter is in neutral position.
Patent GB-798068-A (GB)
Title: Improvements in or relating to folding boxes or cartons
Inventor: ROBINSON ERNEST
IPC: B65D5/34
Filed: 1955-11-09
Abstract: 798,068. Cartons. BRITANNIA FOLDING BOX CO., Ltd. Oct. 10, 1956 [Nov. 9, 1955], No. 32070/55. Class 18. Rearwardly directed tabs 13 on the side walls 12 of a bandbox take in recesses 14 in the rear wall 2 when the box is erected and in slits 15a in the rear edge of the base 6 when the box is folded. The bandbox is formed from a blank 1, Fig. 1, creased to define the rear wall 2 and side walls 3 provided with flaps 16 along their upper edges, and a blank 4, Fig. 2, creased to define a front wall 5, a base panel 6, an intermediate panel 7, a lid 8 and a flap 9. There are extensions 10 along the side edges of the front wall 5 attached to the adjacent ends of side walls 3 by stitching 11 (see Fig. 5). The tabs 13 maintain the side walls upright. The lid may be provided with a continuous crease 18 and slit 17, so that when folded about itself upon crease 18, a cut-out portion stands up as a display panel, see Fig. 5.
Patent GB-1428852-A (GB)
Title: Methods of fitting fluid pressure operated devices into pipelines
IPC: F17D3/18
Filed: 1973-07-05
Abstract: 1428852 Pipe couplings GEORGE KENT Ltd 27 June 1974 [5 July 1973] 32193/73 Heading F2G A method of fitting a water meter 1 having coaxial inlet and outlet connections 2, 3 into a pipeline comprises removing a section of the pipeline of a length less than the overall length of the meter 1 to provide spaced pipe ends 4, 5, mounting union couplings 6, 7, packing rings 8, 10 and sealing rings 9 on the pipe ends 4, 5 (see Fig. 1) tilting the meter 1 and inserting one of the pipe ends 5 into one of the meter connections 3, so that the meter may thereafter be aligned with the pipeline with the connection 2 seated on the ring 10 and then tightening the union 6 thereby clamping the associated sealing ring 9 to provide a seal about the pipe end 4 (see Fig. 2) and finally tightening the union 7 on to the connection 3 to provide a seal about the pipe end 5. As an alternative to the unions 6, 7 the couplings may be secured to the pipe ends either by use of a clamping ring or by a grub screw engaging the pipe.
Patent GB-846502-A (GB)
Title: Emulsion polymerisation
Inventor: ORR ROBERT JAMES
IPC: C08F283/06
Filed: 1957-10-15
Abstract: Polymers are made by polmerizing a conjugated diene containing 4 to 12 carbon atoms in aqueous emulsion at a temperature above 0 DEG C., in the presence of 5 to 20 parts by weight per 100 parts by weight of the polymerizable substance of a dihydric alcohol in which the hydroxy groups are attached to adjacent carbon atoms or a polymer thereof as a modifier.  Specified confugated dienes are butadiene-1,3,pentadiene, hexadiene, dodecadiene, 2,3-dimethylbutadiene-1,3 and 2-chlorobutadiene-1,3.  Specified modifiers are ethylene glycol, propylene glycol, triethylene glycol, pinacol, polyethylene glycols, copolymers of ethylene and propylene glycol, copolymers of polyesters and diacids and copolymers of a glycol with a dihydric alcohol which does not contain hydroxy groups attached to adjacent carbon atoms. Specified co-polymer forming monomers which may be present in the reaction mixture are styrene, p-chlorostyrene, a -methyl styrene and acrylic acid.  Emulsifying agents specified are the alkali metal salts of fatty acids, resin acids and alkyl aryl sulphonates.  Polymerization catalysts specified are peroxy compounds, e.g. potassium or ammonium persulphate or redox catalysts of which may are specified.  In the examples, polymers are made from butadiene-1,3 or isoprene and styrene, 2-methyl styrene or acrylonitrile in the presence of modifiers selected from ethylene glycol, propylene glycol, triethylene glycol, polyethylene glycols or pinacol.
Patent GB-1515968-A (GB)
Title: Method of shaping tubular film
IPC: B29C48/90
Filed: 1976-08-04
Abstract: 1515968 High molecular weight film by extrusion IDEMITSU PETROCHEMICAL Co Ltd 4 Aug 1976 [7 Aug 1975] 32455/76 Heading B5A A tubular film of high molecular weight, high density polyethylene material, is produced by the internal air pressure inflation of a tube of the material extruded from the annular outlet of a die 1, the tube passing to the location of inflation around a mandrel having a reduced diameter portion adjacent the die, and having a bore 2 for the passage of the inflating air from the die, and contact between the tube and mandrel is prevented by a plurality of holes 4 at the smaller diameter end of the mandrel, through which air is drawn by the aspirating effect of the extruding tube to flow in the extrusion direction between the tube and the mandrel. The end of the mandrel adjacent the extrusion outlet is of a smaller external diameter than the inner diameter of the outlet, and the diameter of the remainder of the mandrel may be the same, or slightly less, or slightly greater than the inner diameter of the outlet. The tube is also externally cooled by an air ring 7. Results are given of comparative tests relating to thickness deviation, and tear and impact strength, of 10 micron film.
Patent GB-262603-A (GB)
Title: Improvements in or relating to electric motors
IPC: G10F1/18
Filed: 1925-12-23
Abstract: 262,603. Wade, H., (Mills Novelty Co.). Dec. 23, 1925. Alternating - current motors; motors, controlling. - An induction motor, more particularly for rotating the bows or sounders of a bowed stringed instrument such as a violin, operated either automatically or from a keyboard, has a number of windings selectively connected in the circuit to determine the speed of the motor. The motor consists of a squirrelcage rotor 27, and a laminated stator 30 with teeth 32, 33 on which are provided four-pole windings 34, bipolar windings 35 of fewer turns and larger wire, and split-phase windings 36. The normal motor circuit is from main 40, Fig. 4, through lead 42, coils 34, lead 44, and coils 35 to main 41. In this circuit the effect of the coils 34 preponderates. To increase the speed and produce a louder tone, a tracker-bar contact 47 or a pedal contact 47<a> connects the main 40 to lead 44, shunting out the coils 34. To decrease the speed and soften the tone, a tracker-bar contact 49 or pedal contact 49<a> connects the main 40 to the coils 36, the connection through the coils 34, 35 remaining. The notecircuits completed by tracker-bar contacts 52 or keys 56 include string-stopping electromagnets 14<a> and bow-depressing magnets 25. The bowshafts 16, Fig. 3, carry worm wheels 20 rotated by a worm 19 on the motor-shaft, and rotate in bearings 17 in sleeves 18 which partially surround the worm and allow depression of the bow-shafts for sounding the strings. Specification 262,956 is referred to.