baber/WOPTO huggingface dataset:
Patent GB-719889-A (GB)
Title: Improvements in or relating to salts of hydrazinium hydrazones particularly useful as solder fluxes
IPC: B23K35/36
Filed: 1952-07-23
Abstract: The invention relates to bis-hydrazone salts of dibasic acids having the general formula <FORM:0719889/IV (b)/1> wherein n is an integer from 1 to 8, R1 and R3 are alkyl radicals and R2 and R4 are hydrogen or alkyl radicals, preferably methyl radicals, the total number of carbon atoms in R1 plus R2 and R3 plus R4 respectively, being not more than 14.  They may be prepared by reacting an appropriate aldehyde or ketone with a dihydrazinium salt of the dibasic acid or by first forming the hydrazone of the carbonyl compound and converting this into the salt by means of the stoichiometric amount of dibasic acid.  The compounds may be used as fluxes (see Group II). Examples describe the production of bis (acetone hydrazone) adipate. Other carbonyl starting materials and dibasic acids mentioned are propionaldehyde, butyraldehyde, 2-ethyl butyraldehyde, n-hexaldehyde, 2-ethyl hexaldehyde, methyl ethyl ketone, diethyl ketone, isopropyl ketone, isobutyl ketone, ethyl butyl ketone, di-isobutyl ketone, trimethyl acetone, nonanone and malonic, succinic, glutaric, pimelic, suberic, azelaic and sebacic acids.ALSO:Compounds having the general formula <FORM:0719889/II/1> wherein n is an integer from 1 to 8, R1 and R3 are alkyl radicals and R2 and R4 are hydrogen and alkyl radicals, the total number of carbon atoms in R1 plus R2 and in R3 plus R4 respectively, being not more than 14, may be used alone or with suitable additives as solder fluxes especially for use with soft solders.  Fluxes p  described comprise 5 to 10 parts bis (acetone hydrazone) adipate, 45-40 parts rosin and 50 parts iso propanol, The preparation of the above adipate is described and many starting materials for the reduction of similar compounds of the specified formula are given (see Group IV(b)).
Patent GB-833731-A (GB)
Title: Improvements in separation of polymers from solution
IPC: C08F6/12
Filed: 1957-06-13
Abstract: Olefin polymers are separated from their solution by evaporating solvent from the solution in a series of stages at increasing polymer concentration levels and decreasing evaporation rates.  Specified olefins are ethylene, propylene, 1-butene, 1-pentene and butadiene, all preferably prepared by low pressure processes.  Specified solvents are naphthenic hydrocarbons and paraffinic hydrocarbons. Each stage may be carried out in a different evaporation zone, the evaporation rate of each stage being below the maximum rate without excessive foaming (i.e. foaming with polymer carry over) for the polymer concentration of the stage, but above the maximum rates attainable without excessive foaming in the subsequent stages. Apparatus for carrying out the process is described.
Patent GB-1090218-A (GB)
Title: Warp knit fabrics
IPC: D02G1/18
Filed: 1966-04-29
Abstract: In a warp knit fabric wherein each stitch comprises two yarns, one yarn is knit with a longer loop length and has latent crip developable by treating the fabric in boiling water.  The filaments of the crimpable yarn produce an average of 3 to 12 crimps for stitch when treated; the other yarn may also be crimpable.  In specific examples the fabric is knit with a nylon 66 yarn and a second crimpable yarn comprising a sheath of nylon 66 and a core of a copolyamide of nylon 66 and nylon 6 or nylon 6I.  Immediately before the fabric is placed in boiling water it is cooled to below 10 DEG C or preferably below 0 DEG C.
Patent GB-227879-A (GB)
Title: Improvements relating to the distillation of carbonaceous substances
IPC: C10J3/00
Filed: 1923-07-25
Abstract: 227,879. Sutcliffe, E. R. July 25, 1923. Retort furnaces.- In the distillation of coal and the like superheated steam is passed through hot fuel to obtain a combustible gas which is used in part to heat the charge and in part to heat one of a number of superheaters that are alternately used for superheating the steam before admission to the charge. The steam may be mixed with or replaced by a combustible gas. Steam from an inlet k<1> passes down a heater b<1> and through the residue from the retort a which falls into a receptacle l, the combustible gas generated partly passing up through the retort and partly being burned in a combustion chamber e with air from an inlet g and admitted to a heater b. The distillation products from the retort escape through an outlet i. When the heater b<1> is cooled the process is reversed, the steam being admitted at the inlet k. Specifications 20679/14, [Class 50, Fuel, Manufacture &c.]; 5018/15 and 166,202, [both in Class 55 (ii), Gas manufacture &c.], are referred to.
Patent GB-1452903-A (GB)
Title: Knitting machines and needle control jacks therefor
IPC: D04B15/68
Filed: 1973-04-19
Abstract: 1452903 Knitting machines WILDT MELLOR BROMLEY Ltd 1 April 1974 [19 April 1973] 19135/73 Heading D1C A needle control jack 1 for a knitting machine which combines the properties of a rocking jack and a spring-tailed jack comprises a rigid stem portion 5 having an abutment 4 at its upper end for engaging a constraining cam 6 and a fulcrum point 10 at the rear edge of the jack whereby the jack may be rocked as a whole, and an integral springy tail 8 provided with an operating butt 9 for engaging a raising cam 7, selected jacks in use having their springy tails 8 pressed out of engagement with the cam 7 to produce miss or tuck stitches in accordance with the pattern. At each feed is located a pattern unit PU having two stacks 19, 20 of slidable actuatcrs 18 spring biassed to their inoperative, retracted, positions and selectively held in operative positions by a key element 24 with frangible butts 27. The actuators engage pivoted presser elements equipped with patterning butts 16 to cause deflection of the associated jack tails. Actuators of the stack 20 cause deflection of the jack tails before the latter engage the raising cam 7 and the associated needles do not knit, whereas actuators of the stack 19 disengage the jack tails after they have risen a certain distance on the cam 7 to leave the needles at tuck height. The individual actuators may also be controlled by electromagnetic means or the pattern units may be used in conjunction with pin drums, pattern wheels or punched tape control means.
Patent GB-175592-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M1/00
Filed: 1921-07-15
Abstract: 175,592. Carburation par le Vide. Feb. 18, 1921, [Convention date]. Vaporizers, external.-A carburettor of the type in which liquid fuel is allowed to trickle down over a series of corrugations over which the air required to form a combustible mixture with the fuel is drawn in the same direction during the suction stroke of an engine, comprises a hollow body portion a threaded at the bottom for attachment to an engine cylinder provided with a hood b having an air inlet opening c. An axial fuel pipe d is positioned in the hood. Surrounding this pipe is a tube l provided with perforations d<1>, and in alignment with this tube is a corrugated member e over which the fuel from the pipe d flows. Within this member e, and engaging with it, is projected the stem f of a valve g and in the space k of the body of the carburettor is arranged a sleeve j supported by a spring hand provided with ports g<1> for the admission of air from the ports c, and a tubular extension n, which slides with the tube l, having an adjustable member m, adapted to control the flow of fuel through the ports d and guide the air streams so as to sweep the member e secured rigidly to it. On reduction of pressure below atmospheric, the valve g falls from its seating and pulls down member e, tube l, sleeve j, and member m, and subjects the fuel flowing over the corrugations e to the incoming air, the parts being returned to the normal position by means of the spring h upon increase of pressure.
Patent GB-788711-A (GB)
Title: Improvements in pneumatic tire and method of making same
IPC: B60C15/06
Filed: 1956-06-22
Abstract: 788,711. Tyre fabrics. UNITED STATES RUBBER CO. June 22. 1956 [Sept. 15, 1955], No. 19381/56. Drawings to Specification Class 142(4) [Also in Group XXXIV] The tear-resistant fabric of Specification 732,048 is used as a chafer strip in pneumatic tyres (see Group XXXIV). The fabric may be square-woven, with 27 threads per inch, from 600 denier hightenacity rayon untwisted multifilament single yarns.
Patent GB-426592-A (GB)
Title: Improvements relating to floodlighting apparatus
IPC: B64F1/20
Filed: 1934-07-02
Abstract: 426,592. Floodlighting. CHANCE BROS. & CO., Ltd., HAMPTON, W. M., GOUGH, H., and HOLMES, J. G., Glass Works, Smethwick, Birmingham. July 2, 1934, No. 19442. [Class 75 (iv)] Floodlighting apparatus, suitable for use on aircraft landing grounds or outside buildings, comprises a group of projectors each provided with a shadow bar and so constructed and arranged that the group of shadows merge into a single shadow, each bar obstructing a part of the light from its own projector, but offering a minimum of obstruction to the light from the other projectors. The shadow bars may be made of opaque or of coloured or uncoloured translucent material. In the form shown in Fig. 2, each projector comprises a light source a and a reflector b and/or a refracting system adapted to spread the light laterally with a minimum of vertical divergence. The two side projectors are each provided with a shadow bar c formed by a thin inclined slot, whilst the central projector is provided with a shadow bar d formed by a number of spaced narrow slats, rods, wires, or the like. When it is required to alter the position of the shadow without moving the projectors, the bars c are rigidly secured to arms e, Fig. 6, which are pivotally connected by a link f, whilst the bar d has its slats held in fixed relationship and is pivotally mounted on the link f with its ends attached to links f <1> which are attached to each other, to the link f, and to the central arm e. The bars may be swung by means such as a toothed quadrant g attached to one of the arms e.
Patent GB-1174713-A (GB)
Title: A Method for the Treatment of Cellulosic Products and Cellulosic Products when treated thereby
IPC: B27K3/10
Filed: 1968-04-24
Abstract: 1,174,713. Impregnating wood, &c. HEINOLA FANERFABRIK ZACHARIASSEN & CO. 24 April, 1968 [25 April, 1967], No. 19505/68. Heading D1P. A cellulosic sheet material is impregnated with a solution or dispersion of a protective agent using upper and lower compression surfaces, at least the lower surface being of porous resilient material, e.g. of felt, porous rubber, or foam plastic. The compression surfaces may comprise a pair of rollers or a plate press. One or both rollers may be hollow and perforated and subjected to vacuum or pressure. The lower roller may be immersed in one bath containing the protective agent and further protective agent may be supplied to the upper roller from a further bath. The cellulosic sheet material may be natural wood, plywood, chip board, or fibre board. The protective agent may be a fire-or rotproofing agent or an insecticide.
Patent GB-318989-A (GB)
Title: Improvements in receivers for telegraphic and like signals
IPC: H03B19/03
Filed: 1929-06-25
Abstract: 318,989. Electrical Research Products, Inc., (Assignees of Curtis, A. M., and Burton, E. T.). Sept. 15, 1928, [Convention date]. Addition to 312,338. Eliminating effects of disturbing currents.- Wandering zero is corrected by means of saturation effects in a transformer having a core of high permeability, features disclosed in Specifications 270,354 and 315,821 being adopted. The primary coils 14, 15, Fig. 1, have their cores polarized in opposite directions by the coils 19, 20, which are energized by a battery 21 through a resistance r and choke c. Owing to saturation effects in the cores, the transformers 14, 17 and 15, 18 are effective over only a narrow range of current strength in positive and negative signals respectively. When the signals A, Fig. 7, passing from the input pair 12, 13, Fig. 1, to the receiving circuit 16, exhibit zero wander so that their peak voltage cross the narrow voltage bands x or y for which the coils 17, 18 are respectively effective, voltage-impulses B, C are applied to the grids of the valves 22, 23. The resistances 24, 25 and condensers 26, 27 are so arranged that unidirectional impulses D, E of plate current pass through the primaries of the transformers 29 so as momentarily to energize the polarized relay 30. Voltage impulses smoothed to the form I are consequently admitted from the batteries 30a through the impedance network 33 to the grid of the valve 38, so as to correct the zero wander. In a modification (Fig. 2, not shown) the grids of the valves 22, 23 are positively biassed, with the result that the plate-current impulses are of unequal magnitude as at F, G, and only one in each pair is able to actuate the relay 30 so as to send on impulses H. In another modification (Fig. 3, not shown) a negative grid-bias is applied to the valves 22, 28 and the resistances and condensers 24 - - 27 are omitted. Single impulses of plate current (corresponding to the rising portions of the excess signals) are produced in this case as at J, K; impulses L are input to the network 33, and a grid-voltage correction M is applied to the valve 38. Figs. 4, 5 show two alternative networks which may be used instead of the network 33; and according to Fig. 4 (part not shown) a transformer-coupled amplifier is inserted between the transformer 29 and relay 30. The relay 30 shown in Figs. 4, 5 is provided with an additional winding 55b which prolongs the effects of the impulses applied to the winding 55<a>; the charging current to the condenser 31, Fig. 4, or 6 Fig. 5, prolongs the impulses N (winding 55a) to the form 0 (winding 55b). In Fig. 5 the locking network 61, 62 can be adjusted independently of the shaping network 33. In a simplified arrangement (Fig. 6, not shown) the push-pull pair of valves 22, 23 is replaced by a single valve and the signals as well as correcting impulses are applied to the correcting relay 30, a corrected - signal curve of the type shown at P being obtained. Specifications 270,354 and 315,821 are referred to.
Patent GB-900755-A (GB)
Title: Improvements in and relating to the production of 2-acylphenothiazines
IPC: A61K31/00
Filed: 1960-06-02
Abstract: 2-Acylphenothiazines of the general formula:  <FORM:0900755/IV (b)/1> in which A is an alkylene radical containing 2-5 carbon atoms, R is an alkyl radical containing 1-4 carbon atoms and R1 is an hydroxy substituted alkyl radical containing 1-4 carbon atoms are prepared by reacting a phenothiazine of the general formula:  <FORM:0900755/IV (b)/2> either with an alkylene halide or haloalkyl aryl sulphonate and condensing the 2 2-acyl-10-(haloalkyl)-phenothiazine so produced with an N-hydroxyalkyl piperazine, or with piperazine and reacting the 2-acyl-10-(piperazinylalkyl) phenothiazine with an alkylene halohydrin, an alkylene oxide or an alkylene carbonate; or reacting the above 2-acylphenothiazine with either an N-haloalkylpiperazine and reacting the resulting 2-acyl-10-(alkylpiperazinyl)-pheno-thiazine with an alkylene halohydrin, alkylene oxide or alkylene carbonate, or with an N-haloalkyl-N1-hydroxyalkylpiperazine, the condensation involving the 10-position of the 2-acylphenothiazine in each of the aforesaid reactions taking place in the presence of sodium hydride dissolved in dimethyl formamide or dimethyl acetamide. The products may be converted to acid addition salts.  Tranquillising compositions comprise the 2-acylphenothiazines or p  acid addition salts thereof produced by the process of the invention and an inert carrier.  Salts specified include ascorbates and nicotinates.  Reference has been directed by the Comptroller to Specification 819,886
Patent GB-833797-A (GB)
Title: Improvements in or relating to captive closures more particularly for collapsible tube containers
IPC: B65D47/20
Filed: 1957-06-21
Abstract: 833,797. Container closures. BLEASE, F. R., and CALDWELL, S. B. June 23, 1958 [June 21, 1957], No. 19533/57. Addition to 797,790. Class 125(3). In a modification of the closure arrangement of the parent Specification the neck 1 of a collapsible tube 2 has a smooth bore 3 in which slides a plunger 4 having a stem piece 5 projecting through an aperture 6, the side wall of the neck 1 having an aperture 7 obturated by the plunger which may be hollow and constructed of plastic. The tube neck may be initially sealed by a coating of airtight plastic or other film which is torn away to obtain initial access to the tube contents.
Patent GB-873085-A (GB)
Title: Improvements in tubulous vapour generating and vapour heating units
Inventor: ZOLLER RONALD ERNEST
IPC: F22B37/10
Filed: 1956-11-01
Abstract: 873,085. Boiler furnaces. BABCOCK & WILCOX Ltd. Nov. 1, 1957 [Nov. 1, 1956], No. 19539/58. Divided out of 873,084. Class 51 (1). [Also in Group XIII] In a furnace wall of the kind described and shown in Specification 873,084, uncoupling of the means connecting the superheater tubes 5 to the generating tubes 1 is effected by moving the tubes 5 axially and then inwardly of the furnace. The connecting means shown comprise interengaging bars 24, which are longitudinally welded to the tubes 1, and members 25 welded to the tubes 5. The tubes 1, 5 are connected by raising or lowering the tubes 5 relative to the tubes 1 until each member 25 lies rearwardly of a pair of associated bars 24. Specification 638,656 also is referred to.
Patent GB-533504-A (GB)
Title: Improvements in or relating to luminous signs
IPC: G09F13/00
Filed: 1939-07-05
Abstract: 533,504. Monogrammic signs. NEOGRAPH, Ltd., and KNEPPER, F. July 5, 1939, No. 19559. [Class 118 (ii)] [Also in Group XXXVII] In a switch for selectively illuminating letters &c. of a luminous sign, a series of selector bars y 1 , y 2  ... y 34  are individually operated by electromagnets m 1 , m 2  ... m 34  or pneumatic or other devices, thereby causing contacts on the bar operated to engage the transversely arranged contactor bars 1a, 2a ... 11a which are connected to the luminous tubes of the sign, each electrode of a tube being connected to a separate bar. Each selector bar carries at selected places a number of bridging pieces such as O<SP>1</SP>, O<SP>11</SP>, and when, say, the bar y 1  is actuated by the electromagnet m 1 , current enters at a conductor va, passes by a bridge O 1  to bar 1a and thence through a luminous tube connected between 1a and 5a, then through the bridging piece to conductor 7a and a tube between this and conductor 11a, thereby lighting up a particular letter. The magnets m 1  ... m 34  are energized by hand switches k 1 , k 2  ... k 34  or by a rotary switch s and the order of energization may be varied at will. In a modification, the selector bars are arranged radiating from a point and the conductors 1a ... 11a form arcs of circles. Specifications 523,042, 523,192 and 525,855 are referred to.
Patent GB-219500-A (GB)
Title: Improvements in chest expanders or braces
IPC: A41F3/00
Filed: 1923-07-31
Abstract: 219,500. Wilson, A. July 31, 1923. Braces; chest-expanders. -In chest - expanders or braces of the type in which a continuous strap or a pair of straps is crossed at the back of the wearer in a loop or the like, two straps b, c are permanently attached at one end to the loop a through which they pass and are also connected by a back strap d. The other ends of the straps b, c may be connected together by a buckle e or may be provided with tab ends and with adjusting means.
Patent GB-670116-A (GB)
Title: Improvements in or relating to tobacco cutting machines
IPC: A24B7/14
Filed: 1949-07-26
Abstract: 670,116. Cutting tobacco. MOLINS, D. W., and MOLINS MACHINE CO., Ltd. July 25, 1950 [July 26, 1949], No. 19637/49. Class 28 (ii). [Also in Groups I and XXX] In a tobacco-cutting machine such as described in Specification 588,129, [Group I), the density of the tobacco fed by endless belt conveyer to the mouth, where cutting takes place, is maintained fairly constant by a heavy feeler plate 31 bearing on the passing tobacco and so moving up and down with its density, such movement being used to vary the speed of the conveyers which feed the tobacco to the mouth. Such movement of the feeler 31 actuates the clutch fork 48 of a change speed gear to select the approximately correct speed of the endless belt conveyers as follows. The feeler 31 is a movable part of the top wall of the feed channel. When 31 drops its coupling bracket 34 allows lever 35 to pivot down whereby a link 37 presses lever 38 to rock the shaft 39 clockwise. An arm 45 moving with 39 presses the mid joint of toggle arms 43 and 44 over their dead centre against a spring 69. Spring 69 thus causes the face 44B, Fig. 3, of 44 to strike a face 48B of clutch fork 48 which being pivoted slides the sleeve 47 of the gear change to engage a higher gear to speed up the endless belt conveyers. As the tobacco leaves fall through a shoot on to the first conveyer they are partly. compacted by the usual oscillation of a pivoted wall of the shoot. Gear changing.-When the collar 47, Fig. 6, of the clutch fork 48 is moved axially automatically as above, a groove 62 in it which houses a ring of balls 63 is shifted so that the balls 63 are pressed hard against the interior of a sleeve 55 which has indentation for each ball. The higher gear 51 screwed to sleeve 51 is thus driven to drive through gear 49 the shaft 50 of the conveyer chains at a higher speed. Reverse movement of the collar 47 by the clutch fork 48 presses another ring of ball 65 against indentations in a sleeve 66 carrying a smaller bevel gear 54 which through gear 53 drives the shaft 50 of the conveyers at a lower speed.
Patent GB-239835-A (GB)
Title: Improvements in gears and methods and apparatus for cutting the same
IPC: B23F7/00
Filed: 1925-08-04
Abstract: 239,835. B÷ttcher, P. May 26, 1925, [Convention date]. Gear-cutting.-In a system of toothed gearing of the herringbone type, applicable to both spur and bevel gears, the longitudinal curve of the teeth has a radius of curvature which gradually increases from the median plane of the wheel towards the end faces. In Fig. 4, which compares the new tooth with the usual double-helical form,. the tooth curves are cyclic curves of approximately parabolic form, but in modifications, hyperbolic or elliptical tooth curves may be adopted. The profile of the sides of the teeth is. in all cases formed according to the usual rolling- generating method, the spur gears being based on a straight sided rack form and the bevel gears on a straight sided crown wheel. In order to cut gears according to the invention, a tool carrier 5 is provided with four cutting tools 8 - - 11 having straight flanks and corresponding in profile to half teeth of the basic rack. the tools beings arranged in diametrically-opposed pairs. A mainshaft 1 driven from a pulley 2 is journaled in a frame 4 and carries a crank-pin 3 rotatably mounted in the tool carrier. A wheel 6 on the carrier engages an internal gear on an extension of the frame 4 so that in operation the carrier has a planetary movement and the resultant path of the cutting edges is as shown in Fig. 9. The ratio of the pitch circle diameters of the wheels 6 and 7 is 4 : 5. Other methods based on combined reciprocating and circular movements or on combinations of circular movements may be used to give the required cutting path to the tools or, alternatively, templets may be employed for this purpose. Instead of the tools moving continuously in one direction, a tool may be oscillated along the required curve to cut the teeth by planing.