baber/WOPTO huggingface dataset:
Patent GB-854750-A (GB)
Title: Process and apparatus for production of carbon black
IPC: C09C1/50
Filed: 1957-02-28
Abstract: <PICT:0854750/III/1> In the production of substantially tar-free furnace black, i.e. black having a photelometer of at least 80, the black produced is quenched by the injection into the furnace of a liquid coolant at a point immediately after that at which the black become substantially tar-free.  The liquid coolant may be water or a liquefied normally gaseous hydrocarbon.  The black is preferably cooled to a temperature below 2,000 DEG F., more preferably below 1,500 DEG F.  Further cooling, e.g. to 1,200 DEG F. may be effected by indirect heat exchange and/or by further injection of liquid coolant.  The black may be produced as shown by the decomposition of a substantially linear stream of make material in a surrounding spiral stream of hot combustion gases in a substantially cylindrical furnace comprising a combustion chamber of diameter greater than its length followed by a reaction chamber coaxial with the combustion chamber of smaller diameter.  The liquid coolant may be injected inwardly, radially or at a slight angle to the radius, from a plurality of evenly spaced points, e.g. 2 or 4, at the periphery of the reaction chamber (Figs. 4 and 10, not shown), or may be injected outwardly from a point at the axis of the reaction chamber (Figs. 12 and 13, not shown).  The point of injection may be varied by having several series of inlets in the former case and a longitudinally adjustable inlet in the latter case.  The liquid coolant inlets may be water cooled.  The make material may be normally solid, liquid or gaseous.  Methane, ethane, propane, butane, naphtha and an aromatic gas oil of boiling range 400-700 DEG F. are specified.  All, or a portion of the reactant may be preheated before injection.  The injection pipe may be water cooled and may additionally be cooled by the injection of air and/or steam into the furnace around the pipe. The injection nozzle may be open-ended, may have a single restricted orifice, or may have a ring of orifices adapted to form a spray having an included angle of 10-50 degrees (Figs. 9, 7 and 5 respectively, not shown).  The nozzle may project through the inlet wall of the furnace, may be flush therewith, or may be recessed therein.  The hot combustion gases may be produced by the combustion at a burner (Fig. 3, not shown) of a fuel and oxygen, air, or air enriched with oxygen.  The fuel may be normally solid, liquid, e.g. fuel oil, or gaseous, e.g. hydrogen, carbon monoxide, methane, ethane, propane, or butane.  Either or both of the fuel and oxygen-containing gas may be preheated.  The tangential air and fuel rate may be 185,000-360,000 c.f.h. and 12,330-24,000 c.f.h. respectively.  Specifications 621,031 and 679,818 are referred to.
Patent GB-897341-A (GB)
Title: Thermoplastic rigid and shock-resistant materials based on vinyl chloride polymers
IPC: C08F259/04
Filed: 1961-02-23
Abstract: Thermoplastic materials are obtained by polymerizing butadiene in an aqueous suspension of polyvinyl chloride or a vinyl chloride-vinyl acetate copolymer until the product contains 1 to 20% of polymerized butadiene attached by grafting.  The polymerization may be carried out in the presence of a catalyst, e.g. a per-salt, an organic peroxide or a redox catalyst.  The blending of a graft polymer based on polyvinyl chloride with a graft polymer based on a vinyl chloride-acetate copolymer is referred to.
Patent GB-549024-A (GB)
Title: Improvements in or relating to the production of dies and like press tools
IPC: B30B15/02
Filed: 1941-05-27
Abstract: 549,024. Dies &c. for moulding and pressing. JABLONSKY, B. May 27, 1941, No. 6758. [Class 87 (ii)] [Also in Group XXII] Dies and like press tools are made of compressed and densified fibrous material; such as laminated compressed wood, faced with metal. The laminations of the compressed wood may be united by thermo-setting or thermoplastic resin, and may be reinforced by fabric or metal gauze. Instead of or in addition to wood, other fibrous materials may be used. The metal facing may be steel, chromium or brass. In making the dies, the wooden part is machined or compressed into shape, and the working face is then covered with a metal skin by spraying or by deposition (e.g. electrolytically) ; alternatively, the shaping of the wooden part and the application of the metal facing may be effected simultaneously by assembling the wooden part and the facing and pressing them together into shape. The die may have metal inserts at sharp corners or other places subjected to much wear. The whole body of the die may be of metal-faced laminated wood, or only the working part thereof, the said part being secured to a metal block.
Patent GB-1463825-A (GB)
Title: Lubricating oil compositions and additive concentrates therefor
IPC: C10N30/02
Filed: 1974-02-14
Abstract: 1463825 Lubricants INSTITUT FRANCAIS DU PETROLE 14 Feb 1974 [22 Feb 1973] 6800/74 Heading C5F [Also in Division C3] A lubricant comprises a major proportion of a mineral or synthetic lubricating oil and a minor proportion of a hydrogenated polybutadiene comprising specified proportions of units -CH(C 2 H 5 )CH 2 -, -CH 2 CH 2 CH 2 CH 2 - and -CH 2 CH : CHCH 2 -. The polymer may be prepared as a solution in lubricating oil, e.g. by polymerizing butadiene in solution in a hydrofined oil in the presence of (where THF represents one molecule of tetrahydrofuran) as catalyst and then hydrogenating the polymer. The lubricant may also contain known additives.
Patent GB-1300601-A (GB)
Title: Improvements in or relating to a window blind provided with fluted edges
Inventor: YOUNG-MEISTER GEORGES DE
IPC: E06B9/58
Filed: 1970-02-12
Abstract: 1300601 Roller blinds G DE YOUNGMEISTER 12 Feb 1970 [13 Feb 1969] 6871/70 Heading A4B [Also in Division B5] Two opposed edges of a window blind 1 are reinforced by the high-frequency welding to each side of each opposed edge of sheets 2 of a thermosetting plastics material and fluting or corrugating the opposed edges of the assembly of the blind 1 and the sheets 2 by passage between profiled rolls. The fluted reinforcements 4 co-operate with staggered projections 6a, 6b and flanges 5 on a slide 3 to limit transverse movement of the blind 1.
Patent GB-1423918-A (GB)
Title: Mounting means for a refractory shield
IPC: F27D1/14
Filed: 1974-02-15
Abstract: 1423918 Refractory mountings F P MERKLE JNR 15 Feb 1974 [28 Feb 1973] 6956/74 Heading F4B A mounting means for a suspended refractory shield for a furnace comprises a hollow hanger tube 10 suspended by lugs 11 and 12 from a support beam 13. The hanger tube is closed at the lower end 26 and has oblong openings 17 to 25 to receive metal hangers such as 27 and 28 that engage and hold refractory bricks. Cooling fluid that may be regulated by an adjustable vent, (47) Fig. 2 (not shown), is supplied through the end 15 and exits through openings 17 to 25, thus cooling the metal hangers and refractory shield. Shelves 37 and 38 can be mounted on the tube 10 to aid in distributing the weight of refractory bricks. A backing plate (42), Fig. 2 (not shown) pivotally mounted against a compression spring (43) may be fitted to accommodate thermal expansion of the refractory bricks.
Patent GB-286649-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J1/18
Filed: 1928-03-06
Abstract: 286,649. Holweck, F. March 7, 1927, [Convention date]. Addition to :206,155. Vacuum tubes.-In a valve according to the parent Specification, a filament support 9<1> is secured directly by a screw 5<1> to a head 1, and the other support 9 is secured against an insulator 4 by a screw 5 which is insulated by a washer 14 and mounted in a fluid-cooled chamber, the arrangement being such that access is readily obtained to both screws. The head is separated by a glass or quartz sleeve 2 from the anode 3, and the overlapping ends of the joints are protected against electron bombardment by metallic guards 11 - - 13. Cooling fluid such as water, oil, or kerosine may be supplied separately or in series to the anode jacket 10, a chamber 8 in the head, and the system 7 for the filament conductors. In a modification both filament conductors are insulated. Specification 236,220 is referred to.
Patent GB-644370-A (GB)
Title: Improvements in and relating to self-propelling units of the reaction type
IPC: C06B45/32
Filed: 1947-03-13
Abstract: 644,370. Propellants ; rocket propulsion. ETUDES & CONTROLES INDUSTRIELS. March 13, 1947, No. 6987. Convention date, June 5, 1940. [Classes 9 (i) and 9 (ii)] A self-propelling unit of the reaction type is charged with a propellant consisting of a mixture containing a chlorate or perchlorate of an alkali metal coated with an organic substance of viscous or plastic consistency, e.g. castor oil, paraffin, petroleum jelly, or tar, such as cheddite, and compressed. The mixture may also contain a nitrate of an alkali metal, and an oxide of manganese or lead.
Patent GB-910383-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/24
Filed: 1960-02-29
Abstract: 910,383. Vacuum cleaners. RAND, S. D. May 29, 1961 [Feb. 29, 1960], No. 6991/60. Class 8(1). A suction cleaner of the hand type comprises a casing in two parts 10, 30 the part 10 having a tubular protuberance 11 extending therefrom and the parts abutting on a plane located between and parallel to flat side faces of the casing which houses an electric battery operated motor driven fan 14 and a light bulb 37 and has an air inlet around which are disposed bristles 15. The protuberance 11 is formed with a stub pipe 16 leading to a dust bag 17. In the assembled condition the casing parts 10 and 30 are held together by spring tongues 27a on the part 10 engaging in ridges 32 on the part 11, lugs 24 and 39 on the respective parts engaging in recesses 31 and 40 in the parts. A finger piece 20 of an operating switch protrudes through a notch 19 in the casing part 10 and has three positions one of which is the off position and the other two of which respectively starts the fan motor and illuminates the bulb, the latter being aligned with an aperture 36 in the casing part 30. The operating switch and the light bulb are mounted on a bracket comprising a metal sheet 50 secured to a sheet 51 of electrical insulating material, the bracket being detachably secured to the casing part 10. The fan motor 42 is held between the bracket and a shoulder 76 on the casing 10, a disc 75 being freely mounted on the motor shaft for engagement with the shoulder 76 and the motor having a bearing 77 for engagement in a hole 78 in the bracket. Specification 795,118 is referred to.
Patent GB-591639-A (GB)
Title: Improvements relating to motor cycles
IPC: B62K25/14
Filed: 1945-03-21
Abstract: 591,639. Spring forks for motor-cycles. STRAUSSLER, N. March 21, 1945, No. 7160. [Class 136 (iii)] The road wheels of motor-cycles are each rotatably mounted on a subordinate support in the form of a horizontally disposed loop e pivotally mounted on the main frame of the cycle, each support having outwardly extending from its pivotal axis an arm which is pivotally connected by means of a telescopic resilient coupling to the main part of the frame or a part thereon. The front wheel is mounted at the ends e<1> of a U-shaped frame e pivoted on pins d to the lower end of a front fork c. Crank arms e<2> extend from the pivotal axis d and are pivotally connected to telescopic linked tubular sockets g, h lying within bifurcations of the fork c and containing a coiled compression spring, the rear ends of the inner sockets h being pivoted by means of a pin k' to a tubular crossbar k secured to the cycle mudguard. The rear wheel is similarly mounted.
Patent GB-895632-A (GB)
Title: Apparatus for supplying and controlling the excitation current of an alternator
Inventor: RAVEN JOHN MOELWYN
IPC: H02P9/32
Filed: 1958-03-06
Abstract: 895,632. Alternators; inductances, automatic voltage control systems. BRUSH ELECTRICAL ENGINEERING CO. Ltd. June 5, 1959 [March 6, 1958], No. 7272/58. Classes 35, 38 (2) and 38 (4). An apparatus for supplying and controlling the excitation current of an alternator consists of a compounding saturable reactor 34 having on the air-gapped centre limb of its three-limbed ferromagnetic core two A.C. windings 34a, 34b respectively connected to carry the alternator output current and to be responsive to the alternator output voltage and having on its outer limbs two mutually serially and additively connected control windings supplied with direct current from a voltage regulator 38, 39 having stabilizing means 40, together with a build-up circuit which initiates the alternator excitation from its residual voltage and comprises in the embodiment shown a resistor 59 and a relay 61 connected between the alternator output and the input to a field rectifier 37. The voltage winding 34b may be connected across the alternator output, Fig. 6, not shown, or to match the voltage of the field winding 36 the winding 34b may be connected to a tapping point on the alternator stator 49 as shown or to matching transformers, not shown but interposed between the winding 34b and either the alternator output or the rectifier input. The voltage regulator comprises a voltage error detector 38 which may incorporate a static non- linear device such as a neon reference tube or a Zener diode whose output is amplified by a magnetic, electronic or transistor amplifier 39 powered by the alternator. The transient response is damped by the stabilizing transformer 40 whose output is fed to the amplifier 39 via a potentiometer 42 or an adjustable series resistance, not shown, either in series or parallel (Fig. 6a) with output from the detector 38. The build-up circuit alternatively may comprise in Fig. 6 a silicon or similar diode rectifier bridge connected across the alternator output and feeding the field winding via relay contacts and current limiting resistors. The field may be suppressed by closing a switch 46. For a three-phase alternator, Fig. 5, not shown, three reactors feeding a three-phase rectifier are provided. In the Provisional Specification a single multi-phase saturable transformer may be used instead, and other types of voltage build-up circuit are disclosed. Specifications 764,035, 779,273 and 876,935 are referred to.
Patent GB-680090-A (GB)
Title: Means for suppressing the residual voltage in ward-leonard generators
IPC: H02P9/12
Filed: 1951-03-29
Abstract: 680,090 Control of D.C. motors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Mar. 29, 1951 [April 1, 1950], No. 7281/51. Class 38 (iii) [Also in Group XXXV] The generator of a Ward-Leonard set is cleared of residual magnetism by fitting it with two field windings either of.which is energised more than the other through, contacts closed by the motor rotation to demagnetise the generator. In the form shown the generator 2 has field windings 3a, 3b, one of which may be energised through a switch 6 during normal operation. When the normal excitation is cut off by moving the switch 6 to the middle position so that the windings are oppositely energised, the residual voltage of the generator causes the motor to rotate in one direction or other, and operate a switch 5a driven by the motor through a slipping clutch 5b,. Closure of the switch, contacts a-d or b-d by rotation of the motor, causes field shunting resistance 7a or 7b to be partly short-circuited thus producing a magnetic unbalance which,destroys the residual magnetism. In a modication the switch device is replaced by a commutator and a relay may be used. The contact device may be used in.a. plurality, of Ward-Leonard systems working in parallel.
Patent GB-928543-A (GB)
Title: Fluid pressure relief valves having auxiliary actuating means
Inventor: CARR EDWARD WILLIAM
IPC: F16K31/44
Filed: 1961-02-28
Abstract: 928,543. Valves. CRANE CO. Feb. 28, 1961, No. 7287/61. Class 135. A pressure relief valve comprises a valve closure member 16 loaded by an adjustable spring 29 to close an inlet 8. The spring is housed in a valve bonnet 21 through which extends a valve stem 24. A cap 42 is threaded to screw on to the bonnet and encloses the projecting end of the valve stem 24. The stem has a collar portion 45 of reduced diameter which is slidable in a saddle member 47 retained in the cap by a plug 51. A gagging plug 54 is provided in the top of the cap and its end is spaced from the top of the stem to allow the valve to open and close in response to inlet pressure. To open the valve manually, the cap is unscrewed from the bonnet and in so doing the saddle engages a head 46 of the valve stem to open the valve. The valve may be locked in a closed position by replacing the plug 54 with a handle 57 which may be screwed into the cap and engage the top of the stem. The stem may carry spools 34 to prevent buckling of the spring 29 whose load is adjusted by a bush 37.
Patent GB-874950-A (GB)
Title: Brush structure and method of assembling same
IPC: A46B3/12
Filed: 1960-03-02
Abstract: 874,950. Brushes; handles. HARDMAN CO. Inc., H. V. March 2, 1960 [Feb. 2, 1960], No. 7408/60. Classes 19 and 61. To allow a plastics handle 20 to be satisfactorily secured in the ferrule 10 of a paint brush the handle is provided with an open ended skirt 22 which is so dimensioned as to allow when inserted in the ferrule of a small space 18 between the ferrule and at least two opposite portions of the skirt so that self curing resinous cement contained within the ferrule on top of the bristle material passes, when the handle is positioned within the ferrule, up into the space or spaces 18. To strengthen the bond holes 24 can be formed through the skirt adjacent the lower edge thereof. Above the skirt the handle is formed with a locating shoulder 28. A perforated web may extend across the bottom of the skirt and internal stiffening webs may be formed within the handle.
Patent GB-911002-A (GB)
Title: Improvements in or relating to mechanical oscillators
IPC: G04C3/06
Filed: 1960-03-02
Abstract: 911,002. Clocks and watches. SIEMENS & HALSKE A.G. March 2, 1960 [March 2, 1959 ; Sept. 17, 1959], No. 7428/60. Class 139. [Also in Group XXXV] In an electromagnetically maintained balance assembly wherein the balance carries a coil which co-operates with two oppositely magnetized permanent magnets, the permanent magnets have cross-sections so shaped and orientated with respect to the coil that the three voltage pulses induced in the coil as the balance swings in one direction are of substantially the same amplitude. In the first example, Fig. 3, the permanent magnets A and B have cross-section of generally rectangular shape with curved ends and are so located that the sum of the magnet areas overlapped by the coil Sp in the mid-position of the balance is substantially the same as the greatest area of one of the permanent magnets overlapped by the coil as the balance swings. In another example, Fig. 4, the coil Sp is of rectangular shape and co-operates with the permanent magnets A and B.
Patent GB-102329-A (GB)
Title: Improvements in Ribbon Shifting Means for Typewriters.
IPC: B41J35/00
Filed: 1916-05-25
Abstract: 102,329. Marks, E. C. R., (Sholes Standard Typewriter Co.). May 25, 1916. Ink-ribbon mechanism.-In a vibrator mechanism adjustable for multicolour and stencilling, a link 25 connected to the escapement rocker 18 is provided with a pin 26 arranged in a slot 27 in a lever 28 carrying the vibrator 32, and the link is engaged by a forked end. 37 of a bell-crank 35 connected to an adjusting-lever. The adjusting-lever may consist of a bell-crank 42 which is connected by links 41, 38 and a lever 39 to the bell-crank 35, and engages notches in a spring-pressed locking-lever 47. In the stencilling-adjustment, the pin 26 is set opposite a notch 34 in the slot 27.
Patent GB-720495-A (GB)
Title: Improvements in or relating to machines for making corrugated paper board
IPC: B31F1/28
Filed: 1952-03-24
Abstract: 720,495. Making faced, corrugated paperboard. ROWLANDS, T., and MOLINS MACHINE CO., Ltd. March 24, 1953 [March 24, 1952; March 9, 1953], Nos. 7511/52 and 6450/53. Classes 96 and 140. A web 8 is corrugated between rolls 6, 7, adhesive, e.g. sodium silicate, being applied to the crests of the corrugations by a roll 10, and a facing ply 13 is led in and pressed on by a roll 12, and, to prevent adhesive accumulating on the usual guides or " strippers " 9, the parts 9a thereof are cooled, as by cold water flowing along a narrow passage extending and returning therealong. In a modification, the stripper parts 9a are separate from the remainders of the strippers and are mounted on a cold water pipe extending across the machine. Dew condensing on the stripper parts 9a dilutes any adhesive on them so that it drips off.
Patent GB-724974-A (GB)
Title: Improvements in hypodermic injection apparatus
Inventor: MAY EDWIN ANTHONY
IPC: A61M5/30
Filed: 1953-03-18
Abstract: 724,974. Hypodermic injection devices. BECTON, DICKINSON & CO. March 18, 1953, No. 7516/53. Class 81 (2). A hypodermic injection device is provided with a tubular member adapted to contain gas under pressure and slidably mounted for retraction and projection within a hollow casing having a medicament, chamber adjacent its outer end, the tubular member having means movable therewith to expel medicament from the medicament chamber, a plunger being mounted on or abutting against the rear end of the casing and extending into the tubular member and movable means mounted on the casing and operable to retract the tubular member relative to the plunger thus increasing the pressure of gas within the tubular member and serving as a reaction member for the gas to move the tubular member to its projected position. The tubular member 22 is slidable within a casing 5 which is provided with a nose piece 6 having a rubber lined bore 8 for receiving a charge of medicament in an ampoule 11. A loading cap 7 is provided with a nozzle 14 having an orifice 16 fitted with a cannula 17 through which medicament may be discharged. A plunger 18 with a rubber or the like extension 19 is secured to the tubular member 22 and may slide within a bore in the nose piece 6 to contact a piston-stopper 12 of the ampule 11. A hollow stem portion 35 is mounted within the rear end of the casing 5 so that it abuts against a closure plug 34. and extends within the bore of the tubular member 22, a bushing 36 and packing. rings 37 being disposed between them. On removal of a cap 39 in the closure plug 34 and loosening of a plug 40 in the stem 35, the tubular member 22 and hollow part of the stem 35 are charged with compressed gas, e.g. nitrogen (apparatus not shown), the tubular member being in projected position. The cap 39 and plug 40 are then replaced and the device is cocked by turning the shaft of a pinion 25 with a wrench (not shown), so that a rack 26 and the tubular member 22 on which the rack is mounted are moved rearwardly to compress the charge of gas further. The tubular member 22 and rack 26 are held in cocked position by the pinion 25 which is secured against rotation by a spring-pressed ratchet 29. When an injection is to be made, the ratchet 29 is released by a handle 33 and the tubular member 22 is then projected by the charge of compressed gas so that the plunger 18 moves forwardly to eject medicament from the ampoule 11. A protective covering 51 of rubber or similar material is applied over the loading cap 7. Reference has been directed by the Comptroller to Specifications 568,237 and 697,643.