baber/WOPTO huggingface dataset:
Patent GB-785975-A (GB)
Title: Basically substituted carboxylic acid amides and a process for making them
IPC: C07C237/00
Filed: 1953-11-13
Abstract: The invention comprises compounds of the general formula: <FORM:0785975/IV (a)/1> in which R represents an alkyl radical having 3 or 4 carbon atoms and Hal represents halogen and the salts of these compounds; the compounds of the general formula <FORM:0785975/IV (a)/2> where Hal and R have the above meaning being excluded.  Such compounds are obtained by acetylating a corresponding derivative of 1-aminobenzene, containing as substituents in the phenyl nucleus the methyl radical and a halogen atom, with an aminoacetic acid containing in the amino group an alkyl radical having 3 or 4 carbon atoms or a derivative thereof such as a halide, ester, anhydride, amide or azide.  Alternatively, a corresponding derivative of 1-aminobenzene containing as substituents in the phenyl nucleus the methyl radical and a halogen atom is first acetylated with a haloacetic acid or a derivative thereof, such as a halide, ester, anhydride, amide or ester and the halo-acetylamide so obtained is then condensed with a primary amine containing in the amino group an alkyl radical having 3 or 4 carbon atoms.  Specified aminobenzene derivatives are 1-amino - 2 - methyl - 3 -, 4 - or 5 - chlorobenzenes, 1 - amino - 3 - methyl - 2-, 4 - or 5 - or 6 - chlorobenzenes, and 1 - amino - 4 - methyl-2 - or 3 - chlorobenzenes. In examples: (1) 1 - amino - 2 - methyl - 3 - chlorobenzene is reacted with chloracetyl chloride and the 1-(chloracetylamino) - 2 - methyl - 3 - chlorobenzene obtained is reacted with n - butylamine to give 1 - (butylamino - acetylamino) - 2-methyl - 3 - chlorobenzene (as hydrochloride).  Similarly prepared are (2) 1-(butylamino-acetyl-amino) - 2 - methyl - 4 - bromobenzene hydrochloride; (3) 1-(butylamino-acetyl-amino)-2-methyl - 4 - chlorobenzene hydrochloride; (4) 1 - (n - butylaminoacetylamino) - 2 - methyl - 5-chlorobenzene hydrochloride; (5) 1 - (chloracetylamino) - 2 - methyl - 5 - chlorobenzene hydrochloride; (6) 1-(butylaminoacetylamino)-2 - chloro - 3 - methylbenzene hydrochloride; (7) 1 - (butylamino - acetylamino) - 3 - methyl-4 - chlorobenzene; (8) 1 - (butylamino - acetyl-amino) - 3 - methyl - 5 - chlorobenzene (and its acetate and lactate); (9) 1 - (butyl - amino-acetylamino) - 3 - methyl - 6 - chlorobenzene (and its lactate); (10) 1-(butylamino-acetyl-amino) - 3 - chloro - 4 - methyl - benzene; (11) 1 - (n - butylamino - acetylamino) - 2 - methyl-3-bromobenzene (and its hydrochloride and aminosulphonate). In Example (12): n-butyl-amino-acetic acid hydrochloride (from the reaction of n-butylamino-acetic acid and phosphorus pentachloride in acetyl chloride) is reacted in acetone with 1-amino-2-methyl-3-chlorobenzene to give o -n-butylamino-acetyl-amino - 2 - methyl - 3 - chlorobenzene hydrochloride.  Specification 22106/98, [Class 81], is referred to.
Patent GB-803435-A (GB)
Title: Improvements in or relating to electric direction couplers
IPC: H03H7/48
Filed: 1955-11-04
Abstract: 803,435. Directional coupling circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. Nov. 4, 1955 [Nov. 4, 1954], No. 31649/55. Class 40 (8). A directional coupler comprises two conductors each having a number of spaced-apart sections 111, 4111, Fig. 10 (a theoretical diagram), juxtaposed in pairs and connected by loops of equal electrical length, the loops in one conductor connecting the end of each section with the beginning of the next posterior section and in the other conductor connecting the end of each section with the beginning of the next anterior section. The conductors are parts of transmission lines, e.g. the internal conductors of a piar of coaxial lines. It is stated in the Specification that the ratio of the distributed magnetic and electric coupling between the conductors with the above arrangement is - 1 and that, if the four pairs of terminals of the coupler are correctly terminated, no coupling exists between pairs of terminals at the same extremity of the coupler. In one construction (Fig. 4) the inner conductors 11, 41 of coaxial sockets 13, 43 are wound in opposite senses in the grooves of a dielectric core, the conductors crossing each other twice in each loop. Strips 12 of insulating material are provided between the conductors at the crossing points. The outer conductors of the coaxial sockets 13, 43 may be connected to a shield surrounding the windings (Fig. 6, not shown) or to a conductor extending along the axis of the dielectric core (Fig. 7, not shown). In another construction (Fig. 8) the two conductors are wound in the same sense on adjacent formers which are surrounded by an earthed conductor 17. The degree of mismatch between a generator and a load connected respectively to terminals 43, 43, Fig. 4, may be determined by measuring the voltages at the terminals 13, 13. The ratio of the voltages gives the reflection coefficient of the load as a function of frequency. In the modified circuit of Fig. 3 whichincludes a source 2, a load 3, two directional couplers 5, 5<SP>1</SP>, meters 6<SP>1</SP>, 7 and matched terminations 10, the expression giving the reflection coefficient in terms of the ratio of the measured voltages includes no frequency terms. A brief mathematical discussion of the circuits is given in the Specification.
Patent GB-505905-A (GB)
Title: Improvements in gun sights which compensate for relative motion between gun and target
IPC: F41G5/14
Filed: 1937-11-17
Abstract: 505,905. anti - aircraft gun - sights. SOC. D'EXPLOITATION D'INVENTIONS MECANIQUES. Nov. 17, 1937, No. 31674. Convention date, Jan. 14. [Class 92 (ii)] Relates to means for correcting the angle between gun and sight to compensate for the speed of the target, of the kind in which the target is followed for a short time prior, to firing, the instantaneous angular velocities of the target in elevation and azimuth being measured and combined with the time of flight or range factor to give an automatic correction to the line of sight. According to the invention, the measuring device for angular velocity comprises a reversible hydraulic pump actuated by movements of the gun in following the target, the hydraulic delivery of the pump in magnitude and direction defining the instantaneous angular velocity of the target and being applied as a compensating correction between gun and sight. Fig. 8 shows diagrammatically the arrangement of a gun 22 and open sight 43, 44 in an aircraft mounting of the "ring" type. The azimuthal correction for speed is obtained by a pump 2 driven from the ring 45, the correction being applied to a lever 19 moving the foresight 44 relatively to a frame 41 moving with the gun on the trunnion axis 25. Supplementary corrections such as tangent .elevation are applied to the back sight 43. Fig. 2 shows the pump 2 which circulates liquid from a tank 3 through suction valve 4a and delivery valve 5 for one direction of working, corresponding valves 4, 5a acting when the direction of motion of the pump is reversed. The pump delivery acts through shaped pistons at the lower ends of the valves 5, 5a and control springs 10, 10a to move lever mechanism 11, 14, 19 to indicate the lead correction on a scale 20. Adjustment for time of flight is introduced by an arm 17 which through a link 16 varies the arm of the lever 19. A pair of levers 19, one applying the angular velocity correction in training and the other in elevation, may be connected to the sight frame to give a resultant correcting movement to the foresight. '
Patent GB-341538-A (GB)
Title: Improvements relating to fluid pressure braking apparatus
IPC: B60T15/52
Filed: 1929-10-18
Abstract: 341,538. Fluid-pressure brakes. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Thomas, M. M.-(Executrix of Thomas, T. H.); 219, Lincoln Avenue, Edgewood, Pennsylvania, U.S.A.) Oct. 18, 1929, No. 31719. Convention date, Nov. 20, 1928. [Class 103 (i).] Automatic compressed air brakes for railway vehicles provided with the usual auxiliary reservoir and triple valve are provided with an additional reservoir and valve device adapted when the trainpipe pressure is raised above a predetermined amount sufficient to release the brakes, to supply the train-pipe to ensure a prompt release. The equipment for a vehicle comprises the triple valve 4, auxiliary reservoir 2, and brake cylinder 3, additional reservoir 6 and valve device 5. This valve device comprises a diaphragm 17 operating a slide valve 23, a lower chamber 18 connected to the auxiliary reservoir 2 by pipe 14, and an upper chamber 21 connected by passage 31 to the train-pipe 1. Normally the parts are in the position shown and air is supplied from the train-pipe through the feed groove 15,of the triple valve to the reservoir 2 and thence by the pipe 14, passage 26 and check valves 27, 28 to the reservoir 6. When the trainpipe pressure is reduced to apply the brakes, the triple valve moves to the right, closing the groove 15 and connecting the reservoir 2 to the brake cylinder 3 by the passage 32. The pressure in the reservoir 6 is however retained by the check valves 27, 28. When the train-pipe pressure is subsequently raised, the delay of the rise of pressure in the lower chamber 18 of the valve 5 due to the restricted groove 15 permits an excess of pressure to be established in the upper chamber 21 sufficient to depress the diaphragm against a spring 20 whereby a slide valve 23 uncovers a passage 29 to connect the reservoir 6 to the train-pipe 1. The valve device 5 is preferably arranged to operate at a higher pressure differential than the triple valve so that leakage of an auxiliary reservoir sufficient to move the triple valve associated with it to the release position will not cause the valve 5 to operate and thus propagate an unintentional rise of train-pipe pressure which would cause release movement of other triple valves along the train.
Patent GB-857865-A (GB)
Title: Improvements in equipment for the detection of frequency errors
Inventor: SLOW JOHN LEONARD
IPC: H04J1/16
Filed: 1957-10-10
Abstract: 857,865. Frequency measurements. BRITISH TELECOMMUNICATION RESEARCH Ltd. Oct. 3, 1958 [Oct. 10, 1957], No. 31728/57. Class 40(5). A frequency error detector, particularly for use in apparatus for maintaining the relationship constant between two (or more) repetitive waveform signals of different frequencies (mf 1 , nf 1 ), comprises two pulse generators PG1, PG2 in which each frequency is converted to a pulse train of corresponding frequency, the pulse trains being then fed to an AND gate AG, the output of which will be in the form of pulses ,the width of these output pulses varying cyclically if one frequency (say nf 1 ) has an error of #f said variation in width giving an indication of the error frequency. If #f is zero and assuming that mf 1  is 12 kc/s and nf 1  16 kc/s the output pulses from AG will be of constant width having a frequency of 4 kc/s. In the embodiment of Fig. 4, transistor blocking oscillators TBO1, TBO2 are used to convert the sinusoidal inputs to pulses and the AND gate consists of two rectifiers MR1, MR2 the resultant output being fed to a telephone receiver R to detect the audio frequency signal which will vary cyclically in loudness in accordance with the variation in width of the pulses. In another embodiment (Fig. 5, not shown) the D.C. component of the output is used in a bridge circuit, the error frequency being indicated at the rate at which the meter pointer fluctuates.
Patent GB-618358-A (GB)
Title: Improvements in and relating to the preparation of organoboron compounds
IPC: C07F5/02
Filed: 1946-10-25
Abstract: An alkylated boron compound is prepared by reacting in the vapour phase a boron halide with an alkyl halide at an elevated temperature, e.g. at 250 DEG  to 400 DEG  C., in the presence of aluminium or zinc.  Boron chloride, bromide, fluoride or iodide may be used or mixtures thereof.  A mixture of alkyl halides may be used. Suitable alkyl halides are methyl-, ethyl-, propyl-, butyl- or amyl - chloride, bromide, fluoride or iodide.  The reaction product may also include alkylhalogeno-boranes such as monoalkyldihalogenoboranes and monohalogenodialkylboranes, e.g. monomethyldichloroborane, monochlorodimethylborane, monoethyldibromoborane or monobromodiethylborane.  In examples, boron tribromide or boron trifluoride is reacted with methyl chloride in the presence of aluminium at an elevated temperature, similarly boron trichloride is reacted with methyl chloride in the presence of zinc, and ethyl chloride is reacted with boron trichloride in the presence of aluminium.  The products are chiefly trimethyl- or triethylborone and small quantities of alkylhaloborones are obtained.  n-Propyl-iodide, n-butyl- or isopropyl-bromide, n-amyl-, iso-amyl-, or tert.-butyl-chloride, isopropyl fluoride or mixed normal and isomeric amyl chlorides may be similarly reacted.  The reaction may be effected in the liquid phase, but is not easily controlled.  The Specification as open to inspection under Sect. 91 refers to the use of any metal besides aluminium or zinc which is capable of reducing the boron halide reactant.  This subject-matter does not appear in the Specification as accepted.
Patent GB-230915-A (GB)
Title: An improved foot operated air pump
IPC: F04B33/00
Filed: 1923-12-19
Abstract: 230,915. Martin, J. Dec. 19, 1923. Oscillating-cylinder pumps; actuating pumps by foot power.-A foot-operated air pump, comprising a cylinder pivoted on a base and a treadle pivoted on the same base and connected with the piston-rod end, is provided with means to vary the amplitude of the pump stroke in relation to the treadle stroke. The Figure shows a pump in which a link I is pivoted to the treadle and secures, the end of the piston rod by means of a pin L having a projection M. The pump may work with the link in the lower position shown, or in the upper position, in either of which it is held by the spring pressure; in the upper position the projection engages a stop pin K to limit the motion. The link may be replaced by a slot in the lever C, in either of the ends of which the end of the piston rod is retained, giving alternative lengths of stroke.
Patent GB-817641-A (GB)
Title: Improvements in or relating to axially displaceable stops
IPC: G05G5/04
Filed: 1956-10-19
Abstract: 817,641. Stopping shafts in predetermined positions. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 19, 1956 [Oct. 24, 1955], No. 31890/56. Class 80 (2). [Also in Group XXII] An axially adjustable stop arrangement comprises a stop member and supporting means having interengaging projections held between two or more fixed supports, at least one of the supports being rotatable relative to the stop member so that in one position of the support the projections are free from engagement. Alternate supports 3, 4, Figs. 1 and 2, are arranged between head-plates 1, 2 to form a cage-like body rotatable about a shaft 5a. The supports 3 have flattened parts 5, Fig. 2, and are provided with screw-threads on the remainder of their peripheral portions. Stopmembers 6 with a waist-part 7, Fig. 1, and screwthreaded at the ends are held between adjacent support members by spring clips 8, Fig. 2, when the supports 3 are turned by endpieces 9 so that their threaded parts engage the threads on a stop member the latter is fixed, but, when turned so that their flattened parts engage the stops, these may be slid along the supports to new positions. The supports 3 may be turned automatically by electrical gear. The supports may be arranged in a plane and may be moved at right angles to themselves to bring the stops into co-operation with studs. In lieu of screw-threads grooves may be employed for the interengagement between supports and stops. Specification 817,642 is referred to.
Patent GB-944987-A (GB)
Title: Improvements relating to the attachment of fastening fittings to garments and the like
Inventor: WOOD HERBERT HOWARD
IPC: A44B13/00
Filed: 1960-09-16
Abstract: 944,987. Hook and eye fastenings; waist bands. THOMAS WALKER Ltd. Sept. 18, 1961 [Sept. 16, 1960], No. 31905/60. Headings A3H and A3V. The invention comprises a fastening device, a method of attaching the fastening device to a garment and the assembled fastening device on the garment. The fastening device comprises integral prongs in combination with a separate backing member, which is composed of non-metallic tough and tear resistant material such as a strip or sheet of thermoplastic, leather or thick buckram penetratable by the prongs and which is capable of providing a secure anchorage for the prongs passed through textile material and of executing a clamping pressure on the textile material when the prongs are bent over, which clamping pressure is distributed over an area substantially greater than that covered directly by the bent over portions of the prongs. The method of attaching the fastening device to a garment comprises passing the prongs through the textile material and through the material of the backing member, the prongs being bent over to clamp the backing member against the textile material. The fastening device 5 has prongs 9 which penetrate the inner layer 2a of a waistband and the backing strip 15. The prongs are bent over to clench the backing strip on to the waistband. The backing strip may have a beaded edge. Staples or eyelets may be attached to the other end of the waistband by similar means.
Patent GB-156403-A (GB)
Title: Improvements in and relating to telephones
IPC: H04R21/02
Filed: 1919-12-19
Abstract: 156,403. Kearton, C., and Riley, G. B. Dec. 19, 1919. No Patent granted (Sealing fee not paid). Microphones; mouthpieces. - Relates to microphones, particularly for loud speaking, in which the carbon balls or granules are distributed over the major central portion of the diaphragm. In order that the total area of contact may not be too large, the pockets 8 containing the balls may be spaced apart in three separate electrodes 12 formed integrally with one another or mounted on a three-armed supporting-plate 4 of conducting material. The electrodes 12 may be either circular or shaped as shown in Fig. 11. Alternatively the pockets 8 may be formed in projections or bosses 11 in a single large electrode, Fig. 9. Suitable dimensions are given in the Specification. The carbon used is 98 per cent pure and is polished. An ogee-shaped amplifier 20, Fig 12 of hard wood is attached to a ring 21, which has a number of cuts so as to grip the cap 2 of the transmitter.
Patent GB-501942-A (GB)
Title: Improvements in an electrical heating element and method of manufacturing the same
IPC: H05B3/44
Filed: 1937-11-19
Abstract: 501,942. Ball mills. NAAMLOOZE VENNOOTSCHAP MOLYBDENUM CO. Nov. 19, 1937, No. 31952. Convention date, Nov. 20, 1936. Drawings to Specification. [Class 59] [Also in Groups V and XI] In the grinding of refractory oxides, e.g. zirconia, in ball mills, the linings and balls of the mills are made of the same material as that being ground, or of a composition which does not introduce an undesired ingredient.
Patent GB-641013-A (GB)
Title: Improvements in and relating to load handling trucks
IPC: B66F9/08
Filed: 1947-12-03
Abstract: 641,013. Load-handling trucks. HYSTER CO. Dec. 3, 1947, No. 31986. Convention date, Jan. 19, 1942. [Class 78 (iii)] In a load-handling truck of the kind having the load-engaging member mounted on an upwardly-extending guide Frame which is pivotally attached to the vehicle chassis, the frame is pivoted by a rigid actuating member which passes over the operator's station and is' pivoted at one end to the frame and at the other to an actuating mechanism. The guide frame 15 is pivoted about 16 by a pair of spaced parallel members 53 which are pivoted at 29 to levers 27 connected by shafts 33 to levers 31. These levers 31 are mechanically connected with one another at their lower ends and are each oscillated by a servomotor 34 which motors are hydraulically interconnected so as to ensure that an equal force is exerted on each arm 53. The space between the arms is rigidly braced and covered either by metal plates or by mesh to form a protective roof over the operator.
Patent GB-1109808-A (GB)
Title: Improvements in the hot upsetting of steel bars
Inventor: LULLWITZ JOACHIM
IPC: B21J9/08
Filed: 1966-07-16
Abstract: 1,109,808. Upsetting. INSTITUT FUR LEICHTBAU UND OKONOMISCHE VERWENDUNG VON WERKSTOFFEN. 16 July, 1966, No. 32045/66. Heading B3H. The end of a steel bar 4 gripped between electrode vice jaws 3, 5, is upset by an electrode 6 moved axially into contact with the bar by a cylinder 7, and the head is allowed to cool before the bar is removed. The jaw 3 is actuated by a cylinder 13. At the end of the upsetting stroke an adjustable contact 9 actuates a limit switch 14 to cut-off the current. This is supplied from a transformer through an adjustable selector switch which determines the current supply. The length of stroke is fixed by an adjustable stop 8. The bar 4 is preferably of rectangular cross-section.
Patent GB-164782-A (GB)
Title: Improvements in and relating to electric lamps
IPC: F21L13/02
Filed: 1919-12-23
Abstract: 164,782. Bullimore, W. R. Dec. 23, 1919. Magnetos, driving. -A miner's lamp is supplied with current from stationary coils k which surround permanent magnets j rotated by a vane wheel v by means of compressed air or other gas contained in a reservoir a. The gas is controlled by a valve e and issues from a nozzle s@. Instead of a vane wheel v, blades may be formed on the periphery of the magnets j. An initial impulse is given to the wheel v by means of a blade q carried by the spindle o of the valve e and engaging a wheel r on the axle of the wheel v. When the operating handle p is rotated to open the valve e the blade q gives a slight rotation to the wheel r. The initial impulse may also be given by the use of a valve e which allows gas at a higher pressure than is normally required to issue on the first movement of the valve, this initial high-pressure gas passing through the nozzle s or through a separate jet. The gas in the reservoir a may be forced in through an opening c, or it may be produced by chemical action in a chamber at the base of the lamp. Instead of the magnets j an ordinary wound armature may be used.
Patent GB-322001-A (GB)
Abstract: 322,001. Dunz, C. E. Aug. 30, 1928. Index type-wheel machines; column-printing arrangements.-A book-keeping machine comprises type-wheels 4, Fig. 2, for printing the text of an entry, and laterally adjustable type-wheels 5 for printing the amount in the debit or credit column, both sets of type-wheels being mounted on a shaft 3 which is supported on springs 21 and is depressed, preferably by means of a pedal 22, to effect impression of the selected types 12, 13 on a sheet supported by a platen 25. The type-wheels 4 are provided with indexed fingernotches 8, and the type-wheels 5 are connected by straps to setting-wheels 6 having indexed finger-notches 14. The wheels 6 are connected by straps to segments 7 bearing characters which are visible through a slot at the rear of the casing 2. The wheels 5 are adjusted laterally with the wheels 6 and segments 7 by means of a finger piece passing through a slot in the casing. The type-wheels 4 are associated with dating and consecutive-numbering devices. The state of the credit and debit accounts is shown by separate adding-gears 18 which are operated on return of the type-wheels 5 by means of teeth thereon. Aligning for impression.-The above-mentioned wheels 4, 6 are formed at the rear with teeth cooperating with aligning-pawls, finger-levers 11<a> for releasing the pawls being arranged at the front of the machine.