baber/WOPTO huggingface dataset:
Patent FR-1605555-A (FR)
Title: Surface treatment of e.g. decorative pin cones - by subjecting to stream of water vapour to whiten the surface
IPC: B44C5/06
Filed: 1967-08-21
Granted: 1980-07-25
Abstract: A process and equipment for decorating the surfaces of fir cones etc. is new. A batch of fir cones is placed inside a permeable container, e.g. a jute sack or wire mesh cage. Steam is injected and diffused into the container until the natural resin of the cones becomes liq. A whitening agent is added to the steam, e.g. sulphuric acid, conc. hydrogen, chlorine or other halogen. The whitening agent is pref. drawn into the steam line via the inlet branch of an ejector pump. The process is complete in only a few minutes. The moisture makes the cones swell slightly which is desirable to their appearance.
Patent FR-1315197-A (FR)
IPC: B31B19/64
Filed: 1961-12-08
Granted: 1963-01-18
Abstract: 988,807. Seaming non-metallic sheet material; laminates. J. BELLEZANNE. Nov. 28, 1962 [Dec. 8, 1961], No. 44989/62. Headings B5K and B5N. Adjacent edges of laminated sheet material, in which the first of said adjacent edges has an inner layer 1, Figs. 5 and 6, having an end edge that terminates short of the end edge of the outer layer 2 and the second of said adjacent edges has an outer layer 2A having an end edge that terminates short of the end edge of any inner layer 1A, are secured to each other to form a container by securing to each other the surfaces of the inner layers 1, 1A that are on the sides of the layers 1, 1A opposite the layers 2, 2A over a width that does not exceed the distance by which the layer 2A terminates short of the layer 1A, and folding over and securing the edge of the layer 2 and the joined edges of the layers 1, 1A in superposed relation outwardly of the layer 2A. In a second embodiment, Fig. 3, the edge of the outer layer 3 is bent away from an intermediate layer 2, the edges of the inner layers 1, 1A are bent around the edges of intermediate layers 2, 2A and secured by high-frequency welding, and the edge of the layer 3 and the joined edges of the layers 1, 1A are folded over and secured, preferably by pressure-sensitive adhesive, to the layer 2A. In a further embodiment, Fig. 7, the seam is similar to that of Figs. 5 and 6 with the addition of outer layers 3, 3A and in the finished seam the layer 3A overlaps the layer 3, Fig. 8 (not shown). The inner layers may be made of any thermoweldable film, e.g. polyamide, polyvinyl chloride, polyethylene, or polytetrafluoroethylene. The intermediate and possibly external layer may be made of reinforcing fabrics or fibres, e.g. nylon, polyterephthalate of ethylene glycol, rayon, glass or cotton. To ensure a suitable surface for adhesion these fabrics may be impregnated with a substance, e.g. neoprene (polychlorobutadiene). The external layer is preferably fabric impregnated with neoprene, but other substances may be used, e.g. copolymers of butadiene and acrylonitrile, chlorosulphonated polyethylene polymer, fluorine elastomers or chlorinated rubber. Suitable adhesives for use in the production of laminates and their assembly include a mixture of neoprene and an isocyanate, e.g. toluene diisocyanate, naphthalene diisocyanate or diphenylmethane diisocyanate. Mixtures of natural or synthetic rubber latex and resin, e.g. abietic-phenolic resin, may also be used. Examples of containers are shown.
Patent GB-362723-A (GB)
Title: Improvements in steam dryers, grit or dust extractors for air or gases and the like
IPC: B01D45/08
Filed: 1931-01-12
Abstract: 362,723. Centrifugal gas cleaners. MOYNAN, F. K. O., Sutton Bonington, Loughborough, Leicestershire. Jan. 12, 1931, No. 1011. Addition to 341,532. [Class 23.] The apparatus for extracting dust or moisture from gases as described in the parent Specification, is modified by the cover G for the lower end of the separator casing B being constructed of conical form and provided with ribs or corrugations 1 on its inside :'ace. The major part of the conical bottom plate E is located within the conical cover G, and the ribs on the parts G, E, may be formed with recesses or pockets near their bases to assist in catching the separated dust. Where the gases are hot, moisture is provided to cool them and to assist in the separation. Water or steam may be supplied at the inlet 4, or from a nozzle 2, Fig. 4, at the apex of the conical plate E.
Patent GB-328004-A (GB)
Title: Improvements in or relating to means for damping torsional vibration of crankshafts
IPC: F16F15/12
Filed: 1929-01-11
Abstract: 328,004. Thornycroft & Co., Ltd., J. I., Thornycroft, T., and Barford, V. G. Jan. 11, 1929. Flywheels.- A device adapted to damp torsional vibrations of a crank shaft at moderate and at high speeds comprises a floating ring surrounding one or more of the crank webs and frictionally engaged by a weight pressed by springs against the ring. In Fig. 1 the webs b of the crank shaft a are encircled by floating rings h in which are guided weights g pressed against the rings by springs k mounted in tubular extensions f of frames e secured to the crank web.. In Fig. 3 a frame n secured to the crank web has pins r, extending into the weight g guided in a groove h<1> in the ring h surrounding the frame. Springs s are held in compression between the frame n and the weight g. The coiled springs s may be replaced by springs of laminar form and made integral with the frame. In a modified construction Figs. 8, 9 the floating ring h is carried on the flange 1<a> of a ring 1 spigoted to the crank shaft, and held against rotation by a pin 4 passing into the crank pin. The centrifugally-operated weight g guided between the ring 1 and a cover plate 2 is pressed against the inner surface of the ring by springs k and gaps 1<b> are made in the flange 1<a> of a ring 1 spigoted to the crank shaft, and held against rotation by a pin 4 passing into the crank pin. The centrifugally-operated weight g guided between the ring 1 and a cover plate 2 is pressed against the inner surface of the ring by springs k and gaps 1<b> are made in the flange 1<a> of the ring 1 to allow the operation of the weight.
Patent GB-992765-A (GB)
Title: Process for preventing discolouration of polyurethanes
IPC: C08K3/10
Filed: 1963-01-09
Abstract: Polyurethanes containing no free NCO groups and prepared from polyhydroxy compounds, polyisocyanates and hydrazine and/or hydrazide compounds are protected against discoloration by adding to a solution of the polyurethane in an organic polar solvent that can form hydrogen bonds, a solution containing from 0.01 to 5%, based on the weight of polyurethane, of a salt or salts of tin and/or antimony and/or beryllium in a polar solvent.  The following salts may be used singly or in admixture: stannous chloride, acetate, octoate, stearate, trichloracetate, formate and dibutyltin dilaurate and salts of formula Sn2O(CH3COO)2, SnO(CH3COO)2, SnCl2(CH3COO)2, Na2[Sn(CH3COO)6], SbCl3, SbOCl, SbCl5, Be(NO3)2, BeSO4, BeCl2, (CH3COO)2Be, and antimonyl potassium oxalate.  Polar solvents specified are: water, dimethyl formamide, hexamethylene phosphoramide, dimethyl sulphoxide, N-methyl pyrrolidone and dimethyl acetamide.  The polyurethanes may be prepared from: polyesters, polyesteramides, polyethers, polythioethers, polycarbonates and polyacetals having a linear structure.  Many substituted hydrazines and hydrazides are listed. In examples: (1) a propolymer derived from toluylene diisocyanate and polyethylene adipate in solution in chlorobenzene and dimethyl formamide was reacted with carbodihydrazide and 0.2% of SnCl2.2H2O, SbCl3 or Be(NO3)2.3H2O added in dimethylformamide, (3) sulphur dioxide was added to a polyester derived from adipic acid, ethylene glycol and butylene-1,4-glycol, followed by diisocyanate, hydrazine hydrate and solutions of SnCl2 and Be(NO3)2. Specifications 917,450 and 972,029 are referred to.
Patent GB-1358525-A (GB)
Title: Grooved carbon brake discs
IPC: F16D65/12
Filed: 1973-01-09
Abstract: 1358525 Multidisc brakes GOODYEAR TIRE & RUBBER CO 9 Jan 1973 [7 Feb 1972] 1057/73 Heading F2G A stationary or rotary disc 10 for a multidisc brake is formed of porous carbon-based material and has grooves 22 extending from the inner 18 to the outer periphery 16 and provided on one or both faces of the disc. The grooves 22 may be radial or as shown, at angle to the radius and the bases of the grooves may be squared, slanted or tapered. The depth of the grooves corresponds to at least the wearing surface of the disc. Notches 20 are provided for connecting the disc to a torque tube in the embodiment shown or to the wheel assembly. The discs are applied by a pressure plate to a back plate. The grooves of the first of the discs, which are alternately stationary or rotating in the disc brake, extend radially across the disc while the grooves of the other discs are angled relative to the radii.
Patent GB-935122-A (GB)
Title: Traversing device for yarn winding devices
IPC: D01H1/36
Filed: 1961-01-10
Abstract: 935,122. Winding; traverse mechanism; building motion. MONSANTO CHEMICAL CO. Jan. 10, 1961 [Jan. 21, 1960], No. 1068/61. Class 120 (2). [Also in Group XXIV] A traversing mechanism 21 for winding yarn on to a rotating bobbin is reciprocated along guide bars 12, 13 by an endless belt 29, there being a pair of air-operated plungers within the traversing mechanism controlling a slidable gripper 45 such that the mechanism is clamped alternately to the two spans of the belt 29. The stroke of the traversing action is controlled by two stop members 23, 24 each carrying a lever 120, 121 engageable with a snap-action lever on the traversing mechanism that controls the action of the plungers therein. As the winding of the bobbin progresses the stop members 23, 29 are slowly moved towards each other by a cable drive 105, to decrease the stroke and produce a package having tapered ends.
Patent GB-574242-A (GB)
Title: Improvements in and connected with the supporting and fixing of sheet material, suchas wall and ceiling boards or the like, in buildings and structures
IPC: E04B9/24
Filed: 1944-01-20
Abstract: 574,242. Securing panels and wallboards. HITCHINS, S. Jan., 20, 1944, No. 1103. [Class 20 (iv)] Means for retaining boards in position against a supporting, suitably slotted section bar comprises a clip formed from strip or plate shaped to have some degree of compressibility and having means for engaging the section bar to prevent endwise movement of the clip, so that a board is easily slipped between the end portion of the clip and the supporting flange, slight inequalities in the thickness of the board being taken up by compression of the clip. As shown in Fig. 2, a clip a has a longitudinal hump b and a notch c with inturned lugs d for gripping the sides of a slot in a section bar. In a modification, Fig. 9, the notch is punched up in the top of the hump b and two lugs e are formed which grip the web g of a T-bar. The ends a<1> of the clip may be upturned to facilitate entry of the clip. In a further modification, Fig. 4 (not shown), one upturned end only may be provided the other end having fangs to grip the board.
Patent GB-660257-A (GB)
Title: Improvements in and relating to the extrusion of materials such as metals
IPC: B21C23/21
Filed: 1948-01-14
Abstract: 660,257. Extruding. GENDERS, R., and ROWLES, R. V. Jan. 16, 1949 [Jan. 14, 1948; June 29, 1948], Nos. 1109/48 and 17459/48. Class 83 (iv). An extrusion press comprises a container, a die, one hydraulic ram for forcing the billet through the die, a second hydraulic ram for moving the container and control means for the rams so that during the extrusion operation the container may be stationary, moving with the speed of the extrusion ram or moving at a lower speed. The ram 1 operating through a cross-head 5 under the action of a hydraulic cylinder 2 carries a thrust-rod 7 for applying pressure to the billet 9 within a container 8. The extrusion die 11 is mounted at the end of a tubular holder 12 carried by a housing 14. The container is supported by two piston-rods 16, 17 extending at each end into cylinders 18, 19 and 20, 21, respectively, which may be connected to exhaust or to a supply of pressure fluid in order to control the position and movement of the container. An ordinary extrusion occurs if the ram is operated to force the billet through the die while the container is stationary. By allowing the container to move at the speed of the rain, thus avoiding friction between the billet and container, lower extrusion pressures may be used, but the finish of the product is said to be not as good. Preferably the container moves with the ram at the beginning and end of the operation but is stationary for the greater part of the operation. Or, if desired, the container may move during the whole period but at a speed lower than that of the ram. In a modified form of apparatus the container is supported by piston-rods extending from the housing 14 only and at the end where the pressure-rod 7 enters, is abutted by a ram concentric with the main extrusion ram but controlled independently therefrom.
Patent GB-179585-A (GB)
Title: Improvements in or in connection with calendars or date indicators
IPC: G09D3/04
Filed: 1921-01-10
Abstract: 179,585. Hancock, W. Jan. 10, 1921. Calendars.-A perpetual calendar comprises a card A through slots a, a<1> of which are shown the months and days of the month marked on movable slides B, C, the dates being arranged in an extended series as shown in Fig. 1 so that, when the date slide is moved to register the first day of the month with the day of the week on which the month begins, the days of the month are shown in proper serial order. The days of the week are printed above the opening a'. The slides for the months and dates may be arranged to be moved vertically into position. The dates may be combined in the manner shown in Fig. 15. The days of the months are printed on one slide as shown in Fig. 7, the other side of this slide having sets of figures for February with twenty-eight and twenty-nine days respectively.
Patent GB-610076-A (GB)
Title: Improvements in or relating to electric heating elements
IPC: H05B3/06
Filed: 1946-01-14
Abstract: 610,076. Electric heating resistances. ERALITE MANUFACTURING CO., Ltd., and WRAY, E. J. Jan. 14. 1946, No. 1208. [Class 39(iii)] [Also in Group XXXVI] An electric heating element is provided with flexible means for securing it to a fire or reflector. The element comprises an insulating bar 2 on which is wound a wire 1. Over each end of the bar is fitted a flexible unit 3 consisting of two parts, a part 3a of larger diameter and a coaxial outwardly extending part 3b, the parts being formed from a continuous length of wire, wound helically. The ends of the heater wire 1 pass through an aperture 9 in the bar 2 and along a slot 10 in a threaded bolt 4 screwed into the part 3b of the flexible unit, and are there secured by washers 11 and 12.
Patent GB-157319-A (GB)
Title: Improvements in and relating to wheels
IPC: B60B15/04
Filed: 1921-01-10
Abstract: 157,319. Szakats, G. March 16, 1918, [Convention date]. Slipping-preventing attachments to wheels.- -Relates to slipping-preventing attachments of the kind which comprise spuds adapted to be projected through the lower part of the wheel and withdrawn at the upper part by the action of an eccentric during the rotation of the wheel and consists in mounting the journal of the eccentric on springs so that the spuds engage the ground yieldingly. In the construction described, the spindle 14, on which turns a ring 7 connected to the pivoted spuds 3 by connecting rods 6, 6<1>, is carried by a member 13 movable on a guide 10 carried by and at a right-angle with the axle 1. The guide is acted on by springs 15 the tension of which is adjustable By screws 17 and bears on a stop 16 by which the eccentricity of the device may be varied. In the position shown, the lowest point of the eccentric is vertically above the point of contact of the wheel and the ground, but the position of the guide may be displaced angularly by rotating the axle through worm gearing. The spuds consist of members 3 pivoted to the wheel and provided with curved blades 3<1> concentric with the pivots and adapted to pass through openings 4<1> in the rim. The connecting- rods 6 are pivoted to the spuds and the ring 7 while the connecting-rod 6<1> is rigidly carried by the ring.
Patent GB-1018673-A (GB)
Title: Semiconductor devices
IPC: H04R23/00
Filed: 1964-01-10
Abstract: 1,018,673. Semi-conductor devices. RADIO CORPORATION OF AMERICA. Jan. 10, 1964 [Jan. 28, 1963], No. 1294/64. Heading H1K. The base region has two contiguous portions 30, 20 of high and low conductivity respectively. The low-conductivity portion 20 underlies the emitter region 40 and is thinner than the high-conductivity portion 30 to which metallic contact is made. The base contact 60 and emitter contact 50 may be concentric, Fig. 2 (not shown), interdigitated, Fig. 4B (not shown), or in the form of parallel strips, Fig. 3D (not shown). The device is produced by a sequence of maskings, etchings, and diffusions.
Patent GB-195197-A (GB)
Title: Improvements in or relating to ships and boats
IPC: B63J2/06
Filed: 1922-01-14
Abstract: 195,197. Thornycroft & Co., Ltd., J. I., and Mackie, R. Jan. 14, 1922. Ventilation systems and apparatus. -To enable the personnel of naval craft to carry out their duties without the aid of gas masks when the vessel enters or is enveloped in a gas cloud, certain compartments to which air is supplied in a purified condition are isolated from the remainder of the vessel and are reserved for the use of the crew. For example, the stokehold b is isolated from adjacent boiler rooms a, c by bulkheads d fitted with air locks f. The forced draught for the boiler rooms is effected by geared turbo-fans g, and the air for the stokehold is drawn by fans &c. through ventilators k and a box containing purifying substances. The parts in the boiler room which require manipulation can be operated from the stokeholds by extension spindles passing through the bulkhead, or the bulkhead may be recessed as at p to allow access to the requisite parts.
Patent GB-608673-A (GB)
Title: Improvements relating to the charging of electric batteries
IPC: H02J7/32
Filed: 1946-01-14
Abstract: 608,673. Charging batteries. ENGLISH ELECTRIC CO., Ltd., JOWETT, W. G., BINNEY, E. A., and SPAINK, J. H. ABBINK-. Jan. 14,1946, No. 1297. [Class 38 (iv)] In a battery charging system, particularly one in which the generator is subject to wide variations of speed, the generator or its exciter has a field winding energized from the battery voltage through a network including a non- linear silicon carbide resistance so that the rate of increase of excitation with decrease of battery voltage has a large positive value when the battery voltage is high, but falls to a low value under conditions of low battery voltage. The generator or exciter is preferably an amplifying machine arranged for heavy differential excitation in accordance with the magnitude of the charging current. As shown in Fig. 1, a generator G supplying a battery B and an external load L is of the double armature form described in Specification 579,570 in which the field F2 of the load armature A2 is supplied by armature A1. The last is excited by opposed fields F11, F12 energized by the battery volts and a heavy differential field F13 carrying the charging current. Fields F11, F12 are fed respectively, through a non-linear resistor R1 and a linear resistor R2, a further linear and adjustable resistor R3 being common to both field circuits and set to such a value that, (1) under conditions of high battery volts the currents in the two fields are equal and opposite, but the rate of change of current, with battery voltage, is much greater in winding F12 than in F11 and (2) under conditions of low battery volts the current through winding F12 is about eight times that through F11, but the rates of change of the two currents are about equal. In a modified arrangement the fields F11, F12 are replaced by a single field supplied through a bridge circuit energized by the battery and having linear resistors in two opposite arms and non-linear resistors in the others. Specification 560,531 also is referred to.
Patent GB-790970-A (GB)
Title: Process for treating aluminous ores
Inventor: SCANDRETT HENRY FISHER
IPC: C01F7/062
Filed: 1956-05-14
Abstract: <PICT:0790970/III/1> In the Bayer process for extraction of alumina from an ore containing predominantly alumina trihydrate with a substantial proportion of monohydrate, or from a mixture of two or more ores wherein the predominant amount or all of the alumina in the first is present as trihydrate and wherein at least one of the ores contains substantial quantities of monohydrate, the spent liquor from the alumina precipitation stage is divided into two parts, the first part being passed to a first digestion step where it is reacted with an ore containing monohydrate alumina under conditions to extract the monohydrate alumina substantially completely, and the second part of the spent liquor is passed to a second digestion step where it is reacted with a predominantly trihdyrate ore under trihydrate extraction conditions.  The alumina to caustic soda (A/C) ratio of the liquor from the first digestion step is intermediate between that of the initial spent liquor and that of the liquor employed to precipitate the final alumina, and the liquor resulting from the second digestion step has a higher A/C ratio than that to be employed in the final alumina precipitation.  The two liquors are thereafter blended to obtain a supersaturated caustic aluminate liquor having an A/C ratio such that the liquor is metastable during clarification and precipitation of the alumina.  Thus a mixed trihydrate- and monohydrate-containing bauxite may be treated with spent caustic aluminate liquor at 385 DEG  to 400 DEG  F. with a caustic concentration between 170 and 270 grams per litre to obtain a final A/C ratio between 0.54 and 0.60.  The monohydrate alumina of the ore is thereby wholly extracted together with all the trihydrate present. A second portion of the same spent liquor is reacted with a trihydrate ore at 290-300 DEG  F. and a caustic concentration of between 140 and 200 grams per litre to obtain an A/C ratio between 0.68 and 0.75.  The trihydrate content of the ore is thereby wholly extracted.  The effluent liquors from both digestions stages are then mixed to obtain an A/C ratio between 0.62 and 0.65, the alumina is precipitated therefrom in known manner and the spent liquor recycled. As shown in the drawing a monohydratecontaining ore is fed to the first digestion step 1 where it is treated with spent liquor having an initial A/C ratio of 0.32 at 390 DEG  F.  The effluent aluminate liquor in line 6 has an A/C ratio of 0.58 and the caustic concentration is increased in a flash evaporator 7 from 190 to 229 g./l.  Similarly in second digestion step 2, a trihydrate alumina is reacted at 290 DEG  F. with spent liquor of 0.32 initial A/C ratio. The A/C effluent ratio is 0.72 and the caustic concentration is increased in flash evaporator 14 from 150 to 163 g./l.  The two liquors are mixed at 17 to give an A/C ratio of 0.63 and a caustic concentration of 205 g./l.  The two liquors may also be blended before flash evaporation.