baber/WOPTO huggingface dataset:
Patent GB-942039-A (GB)
Title: Preparation of phenazasilines and intermediates in that preparation
IPC: C07F1/02
Filed: 1960-08-30
Abstract: 4,41-dibromo-2,21-dilithio -N(Cl-5 alkyl)-diphenylamines are novel intermediates used in the preparation of phenazasilines (see Division C3).  They are prepared by reacting 2,21,4,41-tetrabromo -N(Cl-5 alkyl)-diphenylamine with a lower alkyl lithium, in a mol ratio of 1 to 2, at temperatures not higher than 10 DEG C., under an inert atmosphere and in an anhydrous organic solvent.  In Example 3, butyl lithium was added to a solution of 2,21,4,41-tetrabromo-N-ethyldiphenylamine in ether to give 4,41-dibromo-2,21 dilithio-N-ethyldiphenylamine. The N-methyl derivative is prepared in Example 4.  Methyl lithium is prepared by reacting methyl iodide with lithium in ether.  n-Butyl lithium is prepared from n-butyl bromide and lithium in ether. 2,21,4,41-tetrabromo-N-(C1-5 alkyl)-diphenylamines are prepared by brominating diphenylamine with bromine or an agent such as N-bromoacetamide or N-bromosuccinimide, to form 2,21,4,41-tetrabromodiphenylamine, and then alkylating, e.g. with methyl lithium and a dialkyl sulphate, or with an alkyl bromide.ALSO:Phenazasiline derivatives of the formula: <FORM:0942039/C3/1> where R1 is a C1- 5 alkyl radical and R2 and R3 are C1- 5 alkyl or phenyl radicals, are prepared by hydrogenating the novel intermediate bromo compounds of the formula: <FORM:0942039/C3/2> preferably under superatmospheric pressure in the presence of a catalyst such as palladium on charcoal.  The bromo compounds of formula (2) are prepared by reacting a 4,41-dibromo-2,21-dilithio-N- (C1- 5 alkyl) diphenylamine (see Division C2) with a silane of the formula R2R3SX2, where X is chlorine or bromine, preferably at temperature of about 0 DEG C. in an anhydrous solvent such as ether.  The examples describe the preparation of the following compounds: (3) 2,8-dibromo-5-ethyl-10, 10-diphenylphenazasiline; (4) the corresponding 5-methyl derivative; (5) 2,8-dibromo-5-ethyl-10, 10-dimethylphenazasiline; (6) 5-ethyl-10, 10-diphenylphenazasiline (7) 5-methyl-10, 10-diphenylphenazasilne; and (8) 5-ethyl-10, 10-dimethylphenazasiline.  Uses: as antioxidants in high temperature lubricants.
Patent GB-1134184-A (GB)
Title: Improvements relating to signalling apparatus
Inventor: MACKENZIE THOMAS HERBERT
IPC: H04Q9/00
Filed: 1965-07-14
Abstract: 1,134,184. Selective signalling. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 1 Aug., 1966 [14 July, 1965], No. 29837/65. Heading G4H. One of a number of out-stations is selected by applying A.C. to some, but not all, of a group of lines, and the responding out-station applies positive D.C. to the remaining lines of the group. Two OR gates at the central station are connected with the switches performing the outstation selection to check that none of the selected lines carry D.C. and that the remaining lines carry positive D.C. Selection of an outstation enables transmission of information from the out-station to the central station and transmission of signals, e.g. for controlling chocks at a pit face, from the central station to the selected out-station over further lines which are common to all stations.
Patent GB-674259-A (GB)
Title: Pyrimidine derivatives
IPC: C07D239/42
Filed: 1949-11-22
Abstract: Quaternary salts of 4-halopyrimidines, bearing amino or alkylamino in the 2-position and alkyl in the 6-position optionally, are obtained by subjecting the corresponding 4-pyrimidone having alkyl in the 1-position to the action of phosphorus halide or oxyhalide, if desired in an inert medium such as xylene.  In examples, 2 - amino - 1 : 6 - dimethyl - 4 - pyrimidone is heated with PCl5 or PCl5/POCl3, or POCl3 under various conditions to give a product which on treatment with sodium iodide gives the 4 - chloro - 2 - amino - 6 - methylpyrimidine-1-methiodide, and 2-amino-6-methyl-1-ethyl-4-pyrimidone with PCl5 gives a product which on treatment with potassium iodide gives 4-chloro-2-amino-6-methyl-pyrimidine-1-ethiodide.  2 - amino - 1 : 6 - dimethyl - 4 - pyrimidone is obtained by the action of ethyl sulphate on 2 - amino - 4 - hydroxy - 6 - methyl pyrimidine to give the 4-ethoxy compound, followed by quaternating with methylsulphate, acid hydrolysis and neutralization.  2 - amino - 1 - ethyl - 6 - methyl - 4 - pyrimidone is obtained by quaternating the 4-ethoxy compound with ethyl sulphate and sodium iodide, acid hydrolysis and neutralizing.
Patent GB-165369-A (GB)
Title: Improvements in nut-locks
IPC: F16B39/10
Filed: 1920-10-22
Abstract: 165,369. Austin, E. C. Oct. 22, 1920. Loclcing nuts. - A nut-lock comprises a cup-shaped sheet metal washer 2 having a peripheral upstanding rim or flange 4 and a radial lug 9. To lock a nut, part of the flange 4 is bent into contact with a facet and the lug 9 is made to bear against or engage a fixed part of the work. The flange 4 is continued for a short distance along the edges of the lug 9. When the nut and washer are applied together, recesses are provided at the corner of the facets and the flange 4 sprung into engagement therewith. The body of the washer may be dished.
Patent GB-274702-A (GB)
Title: Spring device for pliant tension means
IPC: F16F1/04
Filed: 1926-11-26
Abstract: 274,702. Roders, W. Aug. 11, 1926, [Convention date]. Addition to 260,987. Spring shackles; wire springs.-In the apparatus of the parent Specification the bowed spring over which the flexible tension member is guided is replaced by three or more bearing points resiliently connected together and so placed as to obtain an equivalent effect. The flexible member b, Fig. 1, is guided through a coiled spring a of bow shape. In the construction shown in Fig. 3, the member b is led through three helical coils formed in the wire a and not in the same straight line. The flat strip b in the construction shown in Fig. 5 is guided over a helical coil c and over rollers d carried by extensions of the wire from which the coil is wound.
Patent GB-243756-A (GB)
Title: An improved wind motor
IPC: F03D3/00
Filed: 1925-11-27
Abstract: 243,756. Roscher, P. A. Nov. 28, 1924, [Convention date]. Current motors; regulating.-A wind motor comprises a wheel 11 secured to a shaft 2 and carrying a number of rotor vanes 12 utilizing the Magnus effect. The direction of the wind is perpendicular to the plane of the wheel. Each vane 12 is rotated, about a radial axis by a bevel gear 14 on its spindle 13 meshing with a bevel gear 6 driven by a shaft 3. An auxiliary motor drives the shaft 3 either permanently or for starting only, and by using a conical belt pulley 8 or other means the rate of revolution of the vanes on their own axes may be varied in order to regulate the speed of the shaft 2. The vanes may be conical, or any of the forms shown in Fig. 4 may be used. A series of such wind-wheels may be arranged coaxially. The Specification as open to inspection under Sect. 91 (3) (a) states that in a modification the rotor vanes are mounted with their axes parallel to the wind, certain of the vanes being in this case screened from the wind. This subjectmatter does not appear in the Specification as accepted.
Patent GB-704739-A (GB)
Title: Improvements relating to the loading of firearms having a ramming chamber
IPC: F41A9/37
Filed: 1952-11-27
Abstract: 704,739. Ordnance, loading. AKT1EBOLAGET BOFORS. Nov. 27, 1952 [Nov. 30, 1951], No. 30099/52. Class 92(1) A firearm has a ramming chamber 28, one or a plurality of loading tables extending through the hollow elevating trunnions of the firearm and into the ramming chamber, and a plurality of compartments 56, 57, 58, 56n, 57a, 58a, forming a magazine arranged above the table or tables, each compartment having an opening to the table or tables. In the firearm illustrated the firearm comprises a platform 1 carrying members 2, 3, which provide bearings for rings 4 rigid with the magazine 5, the latter being connected to the recoil jacket 12 of the barrel 13. The magazine is in three sections of which the outer two provide the compartments for the projectiles while the centre one provides space for the breech ring of the barrel on recoil and for the recoil brakes and ramming devices. Each table comprises three beams 15, 16, 17 (all parts to the right of Figs. 3 and 5 are given the additional suffix a) of which the outer beams 15, 17 are fixed and the central beam 16 is longitudinally movable. The outer beams have spring-controlled snap devices 19, 21 to prevent the outermost projectiles from falling off the table and are associated with star wheels 29 ... 36 which in conjunction with a rail 22 serve to guide the projectiles in their movement towards the ramming chamber. The centre beams have four spring-controlled snap devices 37-40 and are constantly urged towards the ramming chamber by spring-controlled pivoted arms 41. Means are provided to ensure that the beams cannot move simultaneously. The magazine compartments are also fitted with snap devices and have stops 62, 63, 64, electro-magnetically operated, for instance, which co-operate with members 65-67, such as switches on which projectiles can rest, in such manner that a projectile can only be fed from a compartment when there is no projectile in contact with the corresponding member 65-67. Operation. If the firearm is without projectiles, charging is effected by placing the projectiles one at a time at the outer edge of a table and thereafter moving the beam 16 to advance the projectile one stop. The compartments are filled when the tables are fully loaded. One of the tables is 'in a position to locate a projectile in the path of the rammer; 'this projectile is then rammed home. On firing, the cam 26 or 27 on a recoiling part moves that arm 41 which is in its path, such movement being transmitted to beam 16 which then reaches an outer position for another projectile to be placed on the table. In the meantime the other beam has advanced to load another round for firing. This continues and no rounds are taken from the compartments. When, however, the supply of rounds to the tables is discontinued, the stops of compartments 56, 56a, no longer holds the rounds. and this compartment then feeds rounds to the table until it is emptied. The rounds are subsequently fed from compartments 57, 57a and 58. 58a.
Patent GB-1161308-A (GB)
Title: Drier Cylinders
IPC: F26B13/18
Filed: 1968-06-24
Abstract: 1,161,308. Rollers. SOC. DE RECHERCHES ET DE REALISATIONS INDUSTRIELLES and H. R. STRUBE. 24 June, 1968 [24 July, 1967], No. 30105/68. Heading F2U. [Also in Division F4] A steam-heated paper drying cylinder consists of outer and inner concentric shells P 1 , P 2 , the space between them being divided by rings a 1  . . . a 4  into a longitudinal series of adjacent compartments c 1  . . . c 5  having individual steam supply ducts V 1  . . . V 5  and condensate exhaust ducts E 1  . . . E 5 , this arrangement permitting control of the degree of drying across the width of the paper. The supply ducts communicate with a distributer housing W connected to the main supply pipes U 1  . . . U 5 , while the exhaust ducts are connected to a condensate collector C. As shown control valves R 1  . . . R 5  are fitted in pipes U 1  . . . U 5  but they may be fitted in the ducts V 1  . . . V 5  within the cylinder, and in either case may be automatically controlled by moisture content sensing means. Closure baffles d 3  are fitted adjacent the entry ends of the exhaust ducts E 1  . . E 5 , but in the case of a high speed cylinder a deflector (e 3 ), Fig. 3 (not shown) may also be fitted on the other side of each exhaust duct entry.
Patent GB-339712-A (GB)
Title: Improvements in adjustable supporting means for the drop-ends of settees and the like
IPC: A47C1/03
Filed: 1929-10-05
Abstract: 339,712. Russell, R. Oct. 5, 1929. Pivoting adjustments. - In an adjustable supporting device for the drop ends of settees, etc., of the kind in which a spring-pressed strut 9 engages a stop pin 12, the hinge part 30 is bent, at 11, into a U-form so as to embrace and guide the strut 9 and so as to provide two spaced supports for the pin 12. The U-shaped portion carries also a pin 13 which carries the spring 14 actuating the strut 9. The pivoted end of the strut is accommodated in a channel-shaped bend of the hinge member 31. The struts may be disengaged from the pins 12 by means of the members 25, 23, 19, 16.
Patent GB-174440-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1920-10-26
Abstract: 174,440. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Oct. 26, 1920. Sewing - machines; Thread-cutters and thread-end holders.- In a shoe or heavy leather wax-thread sewing - machine, thread cutters and thread-end holders are provided for both needle and shuttle threads. The devices are actuated when a continuously reciprocating lever 76 is coupled to a lever 70 on a shaft 66 by the action of raising the presser. The lever 70 carries a pin 80 normally withdrawn by a spring and when the presser is raised a plate 92 on the presser lifter 94 engages the pin and moves it into a hole in the lever 70. The pin is retained in that position by a locking-pin 86 until the latter is pushed outwards by a cam-surface. The needle-thread cutter and holder comprises a bifurcated rod 24, Fig. 10, sliding in a sleeve 26, mounted in a guideway in the work support 14 and actuated by a rack and pinion 52 and other linkages 54, 58, 64 from the shaft 66. A pin 30 projecting from the rod 24 slides in a slot in the guideway of the sleeve and limits the movement of the rod. A thread-cutting edge 34 is formed on the sleeve. When the sleeve is first moved upwardly, the rod and sleeve move together and the bifurcated end of the rod moves to embrace the thread. Then the pin 30 prevents further movement of the rod and the sleeve in moving over it, closes the bifurcated end causing it to grip the thread which is then cut by the edge 34. The shuttle-thread cutter and holder 38 is similar, but the cutting-edge is formed on one arm of the bifurcated rod. The pin 80 carried by the lever 76 engages the lever 70 when the lever is at the low part of the cam. The machine is then stopped, coming to rest with the lever 76 at 96. On restarting, the lever passes into a concentric poition of the cam and, just prior to the completion of one revolution, enters the forepart of the cam and at that time a high part on the periphery of the cam ejects the locking- pin 86. In this way, the threads are engaged and cut and the threadholders partly withdrawn again for the first revolution in the next operation and the threadends are held until after the setting of the first stitch. The invention is shown as applied to machines of the type described in Specifications 23478/10 and 1021/14.
Patent GB-249200-A (GB)
Title: Improvements in and relating to the packing of bales of paper, cloth, linoleum and other merchandise
IPC: B65B27/08
Filed: 1924-12-17
Abstract: 249,200. MacLaurin, J. D. Dec. 17, 1924. Packing paper and other goods; bales.-Bales of paper, cloth. linoleum or other merchandise, are packed by being wrapped round in a wrapper b, Fig. 1, to which a short strip e of adhesive tape is applied preparatory to a long strip e of adhesive tape being applied along the joint d. The edges f are then folded down and secured by a strip g, Fig. 3, of adhesive tape. A broad strip h of adhesive tape is next placed round each end of the package, secured at the corners j, and folded down as shown in Fig. 4. Additional packing, which may be of rigid materials, may be incorporated between the wrapper and the package, and broad paper bands &c., Fig. 3, may be passed round the package before wrapping. or after wrapping as indicated at o, Fig. 4. Angled strips of cardboard may be disposed along the edges of the package. The adhesive bands may be applied to the ends of the packages and the ends turned down so as to extend along all the sides of the package.
Patent GB-265145-A (GB)
Title: Smoke box for turbine locomotives
IPC: B61C1/14
Filed: 1926-11-30
Abstract: 265,145. Schneider et Cie. Jan. 27, 1926, [Convention date]. Railway locomotives, steam turbine.-The smoke-box of a turbine-driven locomotive has a front section C containing a turbo-blower, an intermediate section B forming a feedwater heater, and a rear section A which is secured to the boiler barrel O. The sections so taper from back to front as to leave space beneath for the turbine I, the condenser J, and the pumps G. The section containing the turbo-blower is hinged to the intermediate section. The smoke-box is mounted on a sliding block K and is detachably secured to the boiler barrel as described in Specification 205,830, [Class 123 (ii), Steam generators].
Patent GB-736142-A (GB)
Title: Improvements in or relating to electric discharge tube circuits
Inventor: RIDLER DESMOND SYDNEY
IPC: H03K17/52
Filed: 1950-12-12
Abstract: 736,142. Discharge-tube gating circuits. STANDARD TELEPHONES & CABLES, Ltd. Dec. 7, 1951 [Dec. 12, 1950], No. 30363/50. Class 40 (6). A " one " or " all " gate circuit comprises a cold-cathode gas-filled discharge tube having two or more identical gaps so arranged that a predetermined change in potential on one gap will result either in a change of potential in the output circuit or in a change of potential in the output circuit only if the potentials across all the gaps are less than a predetermined value. Fig. 2 shows a coincidence circuit comprising a cold-cathode discharge tube of the type described in Specification 736,143, [Group XL (a)], having an anode A and discharge gaps G1-G4. Normally the cathodes are at earth potential except for G 1 which may be for example at - 10 volts so that discharge takes place only across gap G1. If 50-volt positive pulses are applied at P1 then the discharge will transfer to any other cathode which is at earth potential but if the voltage at points P1-P4 is raised simultaneously to 50 volts then the discharge will cease and a positive output pulse will appear at lead OP. In a modification, Fig. 3 (not shown), two such discharge tubes are operated in parallel so that an output pulse is obtained only when coincidence occurs in both tubes simultaneously. In a further modification, Fig. 4 (not shown) two discharge tubes have their inputs parallelled and driven from the anode of a similar tube, coincidence on either of the former two tubes resulting in an output pulse at its respective anode. The output pulse on coincidence may be produced across a highresistance cathode load resistor, Fig. 5 (not shown), or several outputs may be taken from across the loads of several cathodes, Fig. 6 (not shown). Fig. 8 shows one stage of a multiple coincidence circuit in which coincidence of all the voltages applied at the cathodes P1-P5 of any one of the fifteen discharge tubes such as CT8 results in a positive pulse across the common load resistor R7 and the firing of tube TRIS. Fig. 9 shows the combination of a coincidence circuit comprising discharge tube D1 with a mixer of " one " type gating stage comprising tube D2. The priming cathode PC of the coincidence tube D1 maintains a small auxiliary discharge and in the presence of positive pulses applied simultaneously at inputs 1-6 a positive output pulse is produced at the anode. This pulse is applied to an anode of tube 12 and the outputs of other similar coincidence tubes are connected to corresponding anodes so that when coincidence occurs on any tube a positive output pulse is produced across the cathode load resistor. The tube D2 comprises a tube such as D1 in which the common electrode is used as cathode and the individual electrodes as anodes. Specification 636,700 also is referred to.
Patent GB-397702-A (GB)
Title: Machine for making snares, for catching hares, rabbits and the like and fish hook traces
IPC: A01M23/34
Filed: 1932-10-29
Abstract: 397,702. Counting-apparatus. PARKINSON, T., 13, Chapel Street, Ulverston, Lancashire. Oct. 29, 1932, No. 30365. [Class 106 (i). ] Counters with alarms ; counters actuated by revolving mechanism.-In a hand-operated machine for making rabbit and like snares and fish hook traces from twisted wire, the twisting peg 8a is carried by a spindle 8 geared to the hand-wheel' 2 through an intermediate wheel. The apparatus is provided with a counting mechanism which operates a bell 30, when a gross of snares &c. are completed. For this purpose a cam 3 on the hand-wheel operates a spring-returned slide 37 carrying a spring- pawl 42 engaging a toothed wheel 28 having 144 teeth and graduated in twelves, a check pawl 44 being provided. The toothed wheel carries a cam 29 which at the end of one revolution thereof operates an escapement member 35 carried by a spring arm 33 so as to cause a hammer 34 to strike the bell.
Patent GB-818059-A (GB)
Title: Centreless grinders
Inventor: BALSIGER HAROLD EDWARD
IPC: B24B5/18
Filed: 1955-10-25
Abstract: 818,059. Centreless grinders. LANDIS TOOL CO. Oct. 25, 1955, No. 30435/55. Class 60. [Also in Group XXXVII] A centreless grinder comprises a control wheel and means associated therewith for automatically changing the speed of the control wheel during the cycle of loading a workpiece into position to be ground, grinding the workpiece and discharging it. When the control wheel is circular the speed change occurs during the grinding phase of the cycle, e.g. the speed is greater during coarse grinding than during fine grinding. When the control wheel is non-circular, the minimum radius portion of the control wheel permitting the introduction of an unground workpiece into, and its ejection when ground from, a grinding throat defined by the control wheel and a grinding wheel, the speed of the control wheel is reduced when the minimum radius portion is adjacent the throat ; a speed change may also occur during grinding. A grinding wheel 10 is driven through belts 12 by a motor 13. A control wheel 14 is driven through chain 16 and belts 17 by a motor 18. A roller 21 on a plunger 22 is urged by a spring 23 against a cam on the spindle 15 of the control wheel. The plunger 22 serves as an adjustable core in a coil 24 to vary the reactance thereof and so control the speed of the motor 18 and therefore of the control wheel. On completion of grinding the workpiece 30 is ejected by member 57 advanced against a spring 58 by a solenoid 56. In a modification, Figs. 4 and 6, cams 40, 41, 42, 43 on the control wheel spindle 15 actuate switches 40 1 , 41 1 , 42 1 , 43 1 . The switches 40 1 , 42 1 , 43 1  are connected to the field winding 50 of the motor 18 through adjustable resistances 40 2 , 42 2 , 43 2 . The switch 41 1 , controls the ejector solenoid 56. Alternatively, the solenoid 56 could be connected in parallel with the resistance 40 2  and the switch 41 1 , omitted. Specification 617,329 is referred to.
Patent GB-855208-A (GB)
Title: Improvements in or relating to electric fuses
Inventor: BASSETT JOHN GEORGE
IPC: H01H85/046
Filed: 1957-09-30
Abstract: 855,208. Fusible cut-outs. GENERAL ELECTRIC CO. Ltd. Sept. 16, 1958 [Sept. 30, 1957]. No. 30545/57. Addition to 830,670. Class 38(1) In a fuse element according to the parent Specification parallel resistive paths 5 are formed in the element 1 by slots 4 and the inductive paths are formed by slugs 6 of low melting point metal bridging an elongated pair of the slots 4. The slugs form paths of lower resistance and lower current carrying capacity so that upon overload, other than by a heavy surge current, the inductive paths fuse before the resistive paths.