baber/WOPTO huggingface dataset:
Patent GB-433878-A (GB)
Title: The manufacture of water-soluble diazoamino compounds and of water-insoluble azodyestuffs derived therefrom
Filed: 1934-02-22
Abstract: Diazoamino compounds are made by reacting upon a diazo compound of an amine containing as substituent a solubilizing group with a primary amine containing no solubilizing group, the two components being selected in such a manner that the diazo component is more strongly negatively substituted than the primary amine.  On acid treatment the diazo compound of the primary amine containing no solubilizing groups is obtained.  In examples: (1) diazotized 4-sulpho-2-anthranilic acid is condensed with p-toluidine; (2) diazotized aniline-2 : 5-disulphonic acid with 5-chloro-2-toluidine; (3) diazotized 4-nitroaniline-2-sulphonic acid with 3-nitraniline.  Diazoamino compounds from the following additional components are also specified: aniline-2- or 4-sulphonic acid, 5-sulpho-2-anthranilic acid, 5-sulpho-3-carboxyaniline, aniline-2 : 4- or 3 : 5-disulphonic acid, 2-aminotoluene-4 : 5-disulphonic acid, 1-naphthylamine-3 : 6 : 8-trisulphonic acid, 4-nitraniline-2-sulphonic acid, 2-nitraniline-4-sulphonic acid, 5-chloraniline-2-sulphonic acid; 3- or 4-chloraniline, 2 : 4-dimethylaniline, 4-chlor-2-toluidine, 2 : 4 : 5-trimethylaniline, 4-anisidine, 2-chloraniline, 2 : 5 - dichloraniline, 5 - nitro - 2 - toluidine, 4-chloro-2-anisidine.  Azo dyes insoluble in water are made by coupling a component containing no solubilizing group with a diazo compound prepared by the action of an acid or an acid-reacting agent on the above diazoamino compounds. They may be prepared in substance or on a substratum, in particular vegetable fibre or in a printing process.  In examples: (4) the diazoamino compound from diazotized aniline-2-sulphonic acid and 3-chloraniline and 2-(2<1> : 3<1>-hydroxynaphthoylamino)-1-methylbenzene are dissolved in caustic soda and turkey red oil, the thickened mixture printed on cotton and the print developed by passing through a bath of acetic acid, formic acid and Glauber;s salt: (5) cotton is printed with a mixture of the diazoamino compound from diazobenzene-2 : 5-disulphonic acid and 5 - chlor - 2 - toluidine and 2-(2<1> : 3<1>-hydroxynaphthoylamino)-1-methyl-5-methoxybenzene and the print developed by treating with steam containing acetic and formic acid. A table is given showing the shades obtained by use of the above-mentioned diazoamino compounds and the following components: the 2<1> : 3<1>-hydroxynaphthoyl derivatives of 2-toluidine, aniline and 2-amino-1-methyl - 5 - methoxybenzene, diacetoacetyl-o-tolidine, 1 - (2<1> : 3<1> - hydroxycarbazolecarboylamino)-4-chlorbenzene. Specification 324,041, [Class 2 (iii)], is referred to.
Patent GB-957154-A (GB)
Title: Improvements in apparatus for reading information from information bearing media
Inventor: SOPER ARTHUR JOHN COMPTON
IPC: G06K7/04
Filed: 1963-02-14
Abstract: 957,154. Sensing records. CREED & CO. Ltd. Feb. 14, 1963, No. 6034/63. Heading G4M. Apparatus for feeding and sensing a perforated tape or edge-notched card includes means for feeding the record step-by-step in either of two directions and means for sensing the record between feeding steps, the feeding and sensing means having a common driving mechanism. A continuously rotating shaft 16, Fig. 1, drives one or other of shafts 14,15 through gearing and clutch 25 or 26 to feed the record, and also drives cams 42,43 controlling the operation of sensing fingers and their associated contacts. Shafts 14, 15 carry cams 12, 13, Fig. 2, which engage the sides of a boxlike recess 5 in the feed member 1 to move the latter in a substantially rectangular path, pins 2 engaging feed holes in the record to advance it step-by-step. Clutch-operating levers 34,35 may be actuated by a solenoid, and besides engaging the respective clutches, complete the associated camming recess 5 by closing the open end with member 6 or 7. The sensing means includes spring biased sensing pins, Fig. 8, and also spring biased plungers 53 which clamp the record when bail 49 is raised by cam 42 during the sensing operation. Code lever 56 is reset to the "space position" by cam 43 before sensing takes place, and if subsequently a hole is sensed, lever 56 rocks about pivot 57 to close contacts 58,60. When the sensing pin is again lowered it depresses latch member 64 against the action of spring 66, and code lever 56 remains in the mark position until reset by cam 43. Fig. 11 shows devices for indicating the direction of record feed. Fingers 73 are raised by cam 94 on shaft 16 at the same time as feed member 1 is raised, and engage feed holes in the record. Subsequent advancement of the record to the left or right by member 1 pivots pins 73 about pins 71, in turn pivoting L-shaped members 75 about pins 76,whereupon lever 83 closes contacts 86, 89 to indicate that record feed is taking place. The direction of feed is indicated by a pin 73 operating an associated switch 95.
Patent GB-712693-A (GB)
Title: Improvements in or relating to starting resistances for electrically propelled vehicles
Inventor: CROFT EDWARD HUGH
IPC: H01C1/082
Filed: 1951-03-13
Abstract: 712,693. Electric resistance heating. GENERAL ELECTRIC CO., Ltd. Feb. 18, 1952 [March 13, 1951], No. 6049/51. Class 39 (3) The starting resistance 6 for an electrically propelled vehicle has passages 5 for heating liquids which are then used elsewhere, e.g. for radiators on the vehicle. Resistance strips 6 are wound on edge in grooved insulating tubes 4 each carrying an inner metal tube 5 through which water is circulated. The tubes 5 are connected at 8 in series with ribbed metal tubes 7 passing between the resistances and having a water inlet 9 and outlet 10. The resistance is mounted in a steel box with ventilating apertures at the edges.
Patent GB-483773-A (GB)
Title: Improved method of treating starch
IPC: C08B30/12
Filed: 1937-03-01
Abstract: A thick-boiling starch is obtained by subjecting a mixture of starch and water to the action of heat and a halogen or halogenating agent in an acid state, the reaction being arrested when the hot paste viscosity of the product is above normal.  The reaction may be controlled to yield either a thick-setting or p  thin-setting starch. The product may be treated with acid to yield a thin boiling starch, or may be mixed with untreated starch to give a thickboiling material.
Patent GB-678134-A (GB)
Title: Graphitization of carbon articles by electric heating
IPC: C04B35/532
Filed: 1951-03-14
Abstract: 678,134. Electric resistance furnaces for graphitization of carbon. UNION CARBIDE & CARBON CORPORATION. March 14, 1951 [March 28, 1950], No. 6134/51. Class 39(iii) Shaped carbon articles 11 e.g. furnace electrodes, graphite bars for electrolytic cells, carbon plates for motor generator brushes, or rods for mercury are rectifiers, are packed in granular carbonaceous material 13 having a negative thermal coefficient of electric resistance, in which are embedded auxiliary electric resistance elements 14 having a positive thermal coefficient of electric resistance and a lower resistance than that of the granular material at below 400‹C. Several electrodes 15 supply current to the granular material 13 and auxiliary resistances 14, which may be coarse wire netting, whereby the articles 11 and granular material are heated uniformly in the temperature range wherein the resistance of the auxiliary elements 14 is lower than that of the granular material, and heating is continued until the resistance of the auxiliary elements is higher than that of the granular material 13. The pieces of wire netting 14 are arranged above, below and in parallel lines between and outside the articles so as to substantially surround them. The ends of the wire netting 14, are connected to graphite bars 16 adjacent the electrodes 15. Thus the netting heats the granular material up to 600‹C, and heating is continued by current through the granular material up to 1000‹-1500‹C or above graphitization temperature e.g. 2700‹C.
Patent GB-1261835-A (GB)
Title: Improvements in or relating to ring mechanisms
Inventor: PLATT MICHAEL ANTHONY
IPC: B42F13/26
Filed: 1969-02-05
Abstract: 1,261,835. Filing papers. M. A. PLATT. 5 Feb., 1969, No. 6234/69. Heading B6E. A ring mechanism for loose-leaf binders comprises a base 1 pivotally supporting ring elements 8 which are lockable in a closed position by resilient plastics ball-and-socket joints 12. Each ring portion is joined to a rod portion (11), Figs. 23, not shown, seated in recesses 4 longitudinally of the base member 1.
Patent GB-203991-A (GB)
Title: An improved luggage carrier
IPC: B62B5/00
Filed: 1923-03-06
Abstract: 203,991. Rogers, S. March 6, 1923. Hand-trucks.- A truck for light luggage consists of a platform A, mounted on four india-rubber-tyred wheels B of trailing or castor form, the underside of the platform being provided with staples D through which pass two straps C encircling platform and luggage. The straps are connected at their top sides by a carrying handle.
Patent GB-123228-A (GB)
Title: An Improved Locking Device for Railway Carriage Doors.
Inventor: RODGERS FRED
IPC: E05B65/38
Filed: 1918-04-16
Abstract: 123,228. Rodgers, F. April 16, 1918. Pneumatically - operated fastenings. - Relates to apparatus of the type in which all the doors of a train are locked simultaneously by vacuum pipes under the control of the guard. The apparatus, mounted in the door framing, comprises a lock bolt A and control bolt A<1> each bearing against a ball D. The plate F on the door has a recess G in which the upper ball D engages. Both bolts are preferably made in sections A, B, A<1>, B', and both are shot by springs H. The upper bolt A is locked by the catch plate L which is drawn down by the plunger M against the spring P when the cylinder N is placed in communication with the vacuum. The catch plate L cannot, however, descend when the door is open, as before it can do so the control bolt A<1> must be pushed in to bring the recess K' in line with the recess K in the upper bolt. A single door can be released in an emergency by turning the three-way cock T on the service pipe by means of a key.
Patent GB-698959-A (GB)
Title: Improvements in devices for drawing equally spaced parallel or divergent lines or hatchings
IPC: B43L13/04
Filed: 1951-03-16
Abstract: 698,959. Mathematical drawing appliances. KUTCHUKIAN, N. March 16, 1951 [March 17, 1950], No. 6426/51. Class 97 (iii). A device for drawing equally-spaced parallel or divergent lines or hatchings comprises a member 11, Fig. 1, of polygonal form, e.g. a triangle, with an opening 12 therein of the same or different polygonal form as the member 11 and housed within the opening a slider 13 of polygonal form having the same angles at the apices as the opening and adapted to be movable within the opening relative to the drawing surface so as to bring corresponding pairs of adjacent sides of the slider and opening into contact. As shown in Fig. 7 one side 35 of the opening 12b and the corresponding side 36 of the slider 13b may be curvilinear of the same radius of curvature, the relative displacement of the slider and member along these curved sides enabling divergent lines to be drawn along a side of the member 11b. A web 25, Fig. 3, covers the opening 12 but is provided with an aperture through which passes, with clearance, a stud 19, rigid with the upper surface of slider 13. This stud is provided with a transverse groove in which is located a bowed spring blade 23 to engage the upper surface of the web 25. The blade 23 is held from vertical movement in the stud 19 by a knob 27 which fits over the stud. Serrated projections 34, Fig. 2, at the angles of the web, facilitate gripping by the user. A scale 15, 16, Fig. 1, of line intervals, obtainable by the relative alternate movements of the slider 13 and member 11 in conjunction with each side of the member 11, is provided on the member and comprises a succession of lines 15 successively spaced with reference to a datum line 16 by increasing amounts, the lines being numbered. Each of the sides of the opening is referenced by an index A, B, C which indexes are also placed near each side of the member 11 in association with numbers corresponding to the spacings between the lines 15, 16 as will be obtained by the use of the side in co-operation with the corresponding sides A, B or C of the opening and slider. The opening may be oblong with a square slider or vice versa.
Patent GB-494814-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J25/72
Filed: 1938-03-01
Abstract: 494,814. Discharge apparatus; circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 1, 1938, No. 6461. Convention date, March 13, 1937. [Classes 39 (i) and 40 (v)] An electron-discharge tube suitable for use as a very high frequency oscillation generator comprises a curved conductive anode A, Fig. 1, a central connection S for applying positive potential thereto, a cathode C located equidistant from the ends of the anode and facing the concave surface thereof, and a negative electrode F in the form of a ring or cylinder for focusing the electrons in a beam. The anode A, in the form of a curved metallic strip, is supported by wires S from a glass press P at one end of the envelope E and the cathode C and focusing electrode F are supported from a press at the opposite end. The cathode C is supplied with heating energy over the heads L and an adjustable negative potential is applied to the focusing electrode F over the lead M, metallic clamps N, and the metallic cylinder R which supports the focusing electrode. Fluctuations in anode potential cause the electron beam to be deflected towards its more positive end but owing to the finite time of flight the electron stream arrives at a point of minimum potential if the time of night is approximately equal to the half-period of the anode operating as a half-wave oscillator. The focusing of the electron stream may be improved by applying an axial magnetic field ; one or more additional accelerating or focusing electrodes may be provided, and the anode may be water-cooled. The oscillations may be coupled to an output circuit by a pair of capacity plates Q, Fig. 2, which are coupled through a transformer T and modulator MOD to an aerial. In a modification, Fig. 4 (not shown), the coupling plates Q are included inside the envelope E of the tube. Inductive coupling may be used instead of capacity coupling. The amplitude or frequency of the oscillations may be modulated by suitable variation of tube potentials, e.g. the anode potential may be varied in accordance with the output of a microphone, Fig. 3 (not shown), or by a telegraph keying arrangement. The oscillations may be propagated directionally by mounting the curved anode at the focus of a radiation reflector.
Patent GB-272143-A (GB)
Title: Improvements relating to nails or like securing devices
IPC: F16B15/02
Filed: 1927-03-08
Abstract: 272,143. Williams, B. E., and Turner Bros. Asbeatos Co., Ltd. March 8, 1927. Nails, barbed.-A barbed nail for securing fibrous sheet materials having surface grooves to give the appearance of tiles has two or four diametrically opposite radial projections b on the head which taper towards the underside and embed within the material below the grooves.
Patent GB-973716-A (GB)
Title: A method for the production of ammonia and sulfur dioxide
IPC: C01B17/50
Filed: 1961-02-22
Abstract: NH3 and SO2 are produced by heating at a temperature from 300 DEG  to 500 DEG  C. a mixture of (NH4)2SO4 and/or NH4HSO4 and ZnO, which will give NH3 and zinc sulphate which will give on heating at a temperature from 600 DEG  to 750 DEG  C. with an oxidizable source of C zinc oxide and SO2. The carbon source may be coke of size finer than 20 mesh and low ash content, charcoal, tar or organic waste residues. An aqueous mixture of (NH4)2SO4 and/or NH4 HSO4, e.g. waste from the manufacture of acrylic or methacrylic esters containing 10-50% H2SO4, 10-40% (NH4)2SO4 and 0.5% organic material may be used. ZnO may be added to neutralize the H2SO4 and the mixture may be concentrated by evaporation and decantation in an evaporator. The amounts of ZnO and C are at least stoichiometric to the ammonium salts-H2SO4 and ZnSO4 respectively. The mixture of (NH4)2SO4, H2SO4, coke and ZnO is fed from a mixer to the first reactor where it is heated for 20 minutes. NH3 evolved passes via a cooler, where ZnO is separated for return, to an absorber containing an aqueous solution of NH4HSO3 and (NH4)2SO3 at below 80 DEG  C. The resulting (NH4)2SO3 solution is heated to liberate NH3 and H2O vapour, which is eliminated from the NH3 by concentration under pressure. The regenerated solution is returned to the absorber or may be treated with the original (NH4)2SO4 and H2SO4 mixture to release SO2; the solution being passed to the mixer. The ZnSO4 and coke is fed from the first reactor to a second reactor where ZnO, CO2 and SO2 are produced. The ZnO is returned to the mixer and the SO2 is cooled.
Patent GB-291867-A (GB)
Title: Production of olefines
IPC: B01J23/889
Filed: 1927-03-09
Abstract: 291,867. Nash, A. W., Bowen, A. R., and Elvins, O. C. March 9, 1927. Aliphatic hydrocarbons; oxygenated organic compounds.-Olefines are obtained by passing a mixture of hydrogen with excess of carbon monoxide at atmospheric pressure and a temperature of 280-300‹ C. over a catalyst comprising a mixture of the reduced oxides of cobalt, copper and manganese. The catalyst is prepared by precipitation of the oxides or thermal decomposition of such salts as the nitrates or carbonates' which produce the oxides, followed by fusion, granulation and reduction in hydrogen at a temperature preferably 400-420‹ C.; the preferred catalyst is prepared from 30 parts by weight of copper oxide, 60 parts of cobalt oxide and 45 parts of manganese oxide; after use, the catalyst can be revived either by passing steam over it, or by oxidation and subsequent reduction. If the gases are in the same proportions or with hydrogen in excess, the product mainly comprises paraffin hydrocarbons. Example are given illustrating the effect of the gaseous proportions and the temperature conditions. The olefinic products, which are accompan:ed by small quantities of oxygenated organic compounds, are condensed out or absorbed in such substances as activated charcoal, and the residual gases, after adjustment of the proportions, may be recirculated through the reaction vessel, which is preferably of copper. Specifications 255,818 and 282,573 are referred to.
Patent GB-286311-A (GB)
Title: Roller chains having detachable links
IPC: F16G13/06
Filed: 1928-03-03
Abstract: 286,311. Soc. Rafer FrÞres et Cie. March 4, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Driving-chains with separate joint pins.-All the links of roller chains are readily detachable by hand without the use of special tools. The inner links comprise rigidly assembled side plates and bushes, and the outer links comprise pins 2, Fig. 4, rigidly secured at one end to one side plate 1 and shouldered at 3 to locate the second side plate when this is threaded over the pins. The detachable side plates are secured by spring plates 6. Figs. 8 and 9, adapted to be engaged with recesses 4 in the ends of the pins. One hole 7 in each locking-plate enables the plate to be rotated on one pin to bring an open slot 8 into engagement with the second pin, and the plate is bowed as shown in Fig. 8 to provide a spring grip in the recesses 4. A cranked link 14, Fig. 12, rigidly secured to an inner link 13 is used in place of a single inner link when it is necessary to shorten a chain by the length of a single link.
Patent GB-1069542-A (GB)
Title: Improvements in or relating to an improved space heating radiator
IPC: F28D1/03
Filed: 1965-02-16
Abstract: 1,069,542. Space heating radiators. SOCIETE DE FINISSAGE DE PRODUITS METALLURGIQUES. Feb. 16, 1965 [March 13, 1964], No. 6729/65. Heading F4S. A sheet-metal space-heating radiator comprises two spaced-apart pressed-out plates A and B together forming a series of parallel fluid passages 3a, 3b defined by hollow ribs in the plates; and spaces (17, Fig. 2) between the plain portions of the plates or between one of said plates and an intermediate plate C; the plates being joined by welding along their vertical edges 13, and at their horizontal edges by a pair of U-section spacer strips 8, 9 providing upper and lower horizontal fluid spaces 15 and 16 which communicate respectively with inlet and outlet connections 6 and 7. In the form shown the intermediate plate C is mounted on the inner face of plate A, whilst a louvred rear plate 12 is welded to the ribs of the plate B to induce a rising current of air at the back of the radiator in the direction f<SP>1</SP>. The radiator in use is suspended from hooks 21 which project from a wall near which the radiator is mounted and engage in openings 22 formed in the plate 12.
Patent GB-685994-A (GB)
Title: Improvements in or relating to structures for housing livestock
IPC: A01K31/18
Filed: 1949-03-12
Abstract: 685,994. Poultry houses. SHEPHERD & SONS, Ltd., J., and SHEPHERD, R. Feb. 7, 1950 [March 12, 1949]. No. 6820/49. Class 5 (ii). A chicken brooder or poultry battery is provided with a raticulate floor supported by spaced rails adjustably retained in vertical gaps between upright frame members in order to raise or lower the floor to suit the growth of the chickens. In the form shown, a battery comprising an electrically heated brooder section 10 and a series of nursery sections 11 has reticulated floors for each section, each floor 17, Fig. 2, resting on tie rods 16 engaging rails 15 which are vertically adjustable in the spaces between the adjacent upright supports 13, 14 of the sections. For this purpose, the rails ends 15a rest on detachable pins 18 insertable in holes 14a. The rails have at their upper end splayed slots 19 for the reception of removable vertical partitions to separate the sections. Droppings are recived by a paper-roll conveyer 12. Mash boxes 23 are accessible to the chicks through wire mesh panels 22. To provide adjustment of the mesh to suit the size of the chicks, each panel may be in two parts; Fig. 4, with narrow and wide mesh portions 24, 25 and is turnable on a central wire 29a in end bearings 30, being locked in either position by a two-part clip 35 engaged by wires 26 or 27.
Patent GB-855846-A (GB)
Title: Means for lifting loads, particularly for use in building operations
IPC: B66B9/16
Filed: 1958-03-04
Abstract: 855,846. Guided platform hoists. STEVENS, W. H. May 21, 1959 [March 4, 1958], No. 6833/58. Class 78 (3). [Also in Group XXVII] A lifting cradle 23 is positively raised and lowered along a ladder or other guide frame 1 by selectively engaging pawls 33 and 39 (Fig. 3), on a lifting unit 26 with the up and down runs of a continuously moving endless chain 2, and a spring latch 49 (Fig. 4), pivotally mounted on the ladder at 47, is provided to hold. the carriage at a predetermined position with both pawls disengaged from the chain. The cradle is guided on the suiles of the ladder by rollers 25 and is attached to the lifting unit 26 by springs 27. In operation, with the cradle near the lower end of the ladder (Fig. 3), pawl 33 is manually engaged with the up-run of the chain and the cradle is lifted to the position shown in Fig. 4, where latch 49 disengages the pawl 33 from the chain, through a lever 35 pivoted to unit 26 at 34, and engages a step on the unit to support the load. When it is desired to lower the cradle a transverse bar 52 is pivoted manually to withdraw latch 49, against the action of a spring 50, thereby allowing the cradle to be lowered on the down run of the chain through pawl 39 which ratchets past the chain links when the cradle is stationary or rising. The chain is driven by an internal combustion engine (see Group XXVII), the throttle of which is controlled by the tension in the chain to speed up the engine during raising and lowering operations. The runs of the chain are engaged at points intermediate the ends of the ladder by a device (Figs. 7 and 8, not shown) which retains the chain at a fixed distance from the ladder. In a modification (not shown) the cradle is rigidly coupled to the unit 26.