baber/WOPTO huggingface dataset:
Patent GB-920742-A (GB)
Title: Improvements in conveyor actuated control means
IPC: B65G23/00
Filed: 1959-06-01
Abstract: 920,742. Endless belt conveyers. JOHNSON-MARCH CORPORATION. June 1, 1959 [Oct. 16, 1958], No. 18587/59. Class 78 (1). A control device for actuating and regulating mechanisms associated with a belt conveyer, e.g. apparatus for spraying material carried by the conveyer belt, as determined by the load on and speed of the belt comprises a rotary switch incorporated in a wheel 22 which is in contact with the undersurface of the loaded run 12 of the belt, the switch being operated in accordance with the speed of the belt, and a weight-actuated switch connected in series with the rotary switch and operated in accordance with the load on the belt. The weightactuated switch is incorporated in a housing 98 and has an actuating shaft 116 which carries an arm 20 on which the wheel 22 is mounted, whereby depression of the wheel by a load on the belt actuates the switch. Shaft 116 carries within the housing 98 an actuating arm 140 adjustable longitudinally of the shaft, and a biasing arm 126 which is acted on by an adjustable coil spring 136 to maintain the wheel 22 in contact with the belt. The arm 140 abuts an arm 150 pivoted on a pin 154 and urged towards arm 140 by a spring. Arm 150 carries an adjustable operating pin 158 for operating a normally closed micro-switch 164, the arrangement being such that the pin 158 is normally held away from the micro-switch by the load on the belt but is allowed to move towards it to open its contacts should the load on the belt decrease beyond a predetermined amount. The rotary switch comprises a second micro-switch 94 connected in series with the micro-switch 164 through wires 100 passed through the arm 20 which is hollow. Micro-switch 94 has an operating arm 96 adapted to be contacted by a pin 80 carried by a freely rotatable magnet 60 which is resiliently held in a neutral position in which the pin 80 is free of the operating arm 96 by springs 90. A stator 36 rotatable independently of but coaxial with the magnet 60 surrounds the latter and is secured to the rim 32 of the wheel. In operation the micro-switch 94, which is normally open, is closed as the belt runs up to speed by rotation of the magnet 60 owing to the induced magnetic field in the latter causing pin 80 to engage the arm 96. As applied to the control of a sprayer for spraying material carried by the belt the arrangement is such that the sprayer is switched off if either the load carried by the belt decreases to a low level or the belt slows down or stops.
Patent GB-294471-A (GB)
Title: Improved means for mounting steering wheels of motor vehicles
IPC: B60G3/01
Filed: 1928-06-27
Abstract: 294,471. Lancia, V., (trading as Lancia &- Co.). July 23, 1927, [Convention date]. Springs, arrangement of; guiding vertical play.-A steering-wheel spring suspension of the kind in which each steering-wheel is independently carried at one, side of a transverse chassis frame member 2, 5, comprises a tubular post 4 enclosing the spring means and having an opening 20 on its outer side to permit of the steering movements of the stub axle 29. The post 4 is fixed to the frame members 2, 5 and bears, by means of a spring 34, on a collar 32 and sleeve 30 fixed to the stub axle. The sleeve 30 is secured to an inner sleeve 23 which slides in guiding bushes 21, 22 fixed to the post 4, the bush 21 also protecting the sleeve from mud, &c. A second spring 36 and a rebound spring 37 are provided, and the post 4 may carry a piston 25 sliding in the tube 23 and constituting therewith a liquid shock-absorber.
Patent GB-809771-A (GB)
Title: Improvements in or relating to tobacco harvesters
IPC: A01D45/16
Filed: 1955-06-29
Abstract: 809,771. Tobacco harvesters. DAVIS, W. E. June, 29, 1955 [July 8, 1954], No. 18753/55. Class 6(3). In a modification of the tobacco-harvester described in Specification 809,772, bunches of picked tobaccoleaves are inserted manually into clips carried by a chain conveyer 50. Each clip comprises a pair of resilient arms 202, urged together by a spring 203 and secured by a bracket 204 carried by the links of the conveyer. The arms terminate in wheels 200 which permit the insertion of gummy stems into the clip.
Patent GB-146870-A (GB)
Title: Manufacture of arseno-compounds of the pyrazolone series
IPC: C07F9/80
Filed: 1920-07-05
Abstract: Products giving alkali salts having spirillocide properties are obtained by introducing acid salt-forming groups (-CH2COOH1 -CH2SO2H, -CH2SO3H, &c.) into the amino groups of arseno-di-(1-aryl -2 : 3-dialkyl-4-amino-5-pyrazolones).  The introduction of alkylenesulphoxyl groups may be effected simultaneously with the formation of the arseno compound by treating a 4-nitroso- or 4-nitro-1-aryl-2 : 3-dialkyl-5-pyrazolone arsinic acid with aldehyde sulphoxylate.  According to examples: 1-(phenyl-p-arsinic acid)-3-methyl-5-chlorpyrazole is prepared by reaction of diazotized 1-p-aminophenyl-3-methyl-5 -chlorpyrazole with an arsenite; this product is converted into 1- (phenyl-p-arsinic acid)-2 : 3 -dimethyl-5-pyrazolone by treatment with dimethyl sulphate followed by heating with sodium carbonate solution; 1-(phenyl-p-arsinic acid)-3-methyl-5-pyrazolone is prepared by reducing diazotized arsanilic acid by means of stannous chloride and hydrochloric acid to phenylthydrazine -p-arsinic acid and condensing this with acetoacetic ester; methylation of this product gives 1-(phenyl-p-arsinic acid)-2 : 3-dimethyl-5-pyrazolone; 4-nitroso-1-(phenyl-p-arsinic acid)-2 : 3-dimethyl-5-pyrazolone is obtained by treating the last-mentioned compound with sodium nitrite and sulphuric acid; reduction of this nitroso compound by hydrosulphite gives p-arseno - di - (1 - phenyl - 2 : 3-dimethyl-4-amino-5-pyrazolone); this product is converted into its mono- or di-glycine derivatives by reaction with bromacetic acid, or into its mono- or di-methylenesulphoxylic derivatives by treatment with formaldehydesulphoxylate.
Patent GB-674582-A (GB)
Title: Improvements in collapsible container
IPC: B65D88/16
Filed: 1950-07-27
Abstract: 674,582. Casks; collapsable containers. UNITED STATES RUBBER CO. July 27, 1950 [Dec. 6, 1949], No. 18784/50. Classes 21 and 66 [Also in Group XXIX] A flexible walled, collapsable cask or like container comprises a cylindrical body and convex ends, the body and ends being composed of plies of rubberized or like cord or fabric, and their edges overlapping and being bonded together. The cords of the body are arranged at an acute angle, preferably about 52 degrees, to the axis of the containers, those in adjacent plies being in opposite helical directions. The inner and outer plies have thicker rubber layers to form a lining and coating. One or more the members such as 68, 70, Fig. 24, may join the ends, the tie members being secured to means' such as a reinforcing head 64 with lifting eyelets 67. A bung 77 may include a valve permitting the container to be charged with inert gas to preserve the contents. In making the cask, the body plies and the plies of one end are placed one by one alternately on a rotatable form 21, Fig. 15, with their edges overlapping. and being rolled into close contact by a roller. The form enters a pressure vessel 40, Fig. 16, against the edge of which an expanding chuck 26 presses the free edge of the body. Pressure in the vessel 40 forces it away from the form 21, partially turning the body, Fig. 18, so that the second set of plies may be joined with the free edge of the body, Fig. 21. A vulcanising chamber 42 is placed over the form and container and gas pressure is introduced between the contacting ends of the container to force them apart and push the vulcanizer clear of the form, Fig. 22. The door 43 of the chamber 42 is closed and pressure applied to the inside of the container and heat to the outside, to vulcanise it. During the building of the ends, metal rings such as 79, 80, Fig. 24, are introduced in the vicinity of openings in the finished container. The container may alternatively be made on a collapsable or destructible form.
Patent GB-874624-A (GB)
Title: Improvements in or relating to magnetic amplifiers
IPC: G11C19/04
Filed: 1958-06-12
Abstract: 874,624. Magnetic amplifiers. INTERNATIONAL COMPUTERS & TABULATORS Ltd. June 12, 1958 [June 14, 1957], No. 18797/58. Class 40 (9). In a magnetic amplifier of the resetting type provided with two output windings 25, 41 wound in opposite senses so as to produce direct and inverted output signals at terminals 11 and 42 respectively in response to input and output pulses V2H, V1H, spurious outputs due to the combined inductance and self-capacitance of the windings are suppressed by applying a negative biasing pulse V2L to the inverted signal output circuit during the time periods when the same pulse is applied to the input winding 23. As shown, the amplifier comprises two stages each including a core 13, 24 having a rectangular hysteresis loop. The first amplifying stage comprises input and output windings 14, 15 which are subjected alternately to negative pulses V1L, V2H, and zero or negative pulses representing binary zero and binary one respectively are applied to terminal 12 during the negative periods of pulses V1L. All the pulses V1L, V2H, V2L, V1H comprise alternating pulse trains having the form and relative time positions shown in Fig. 3 (A) to Fig. 3 (D), and rectifiers 16, 17, 26, 43 (not shown on Fig. 3) are provided so that only the negative portions of the pulses are effective in the various amplifier windings. The pulses may be derived from a power source of the kind described in Specifications 839,051 and 874,476. In operation, the impedance of winding 15 is negligible in the absence of an input pulse and terminal 22 has a negative potential during the negative periods of pulses V2H. A negative binary one pulse on the other hand sets core 13 so that winding 15 has a high impedance during the resetting period when pulse V2H is negative. Ground potential is then obtained at terminal 22 due to the application of a potential B+ over a resistor 33 and the provision of a grounded rectifier 28. The potential at terminal 22 constitutes the input signal to the next amplifier stage and acts in winding 23 in association with the negative V2L pulses. The same mode of operation is obtained in the stage comprising core 24, both the direct and inverted outputs being connected to B+ by resistors and to ground by way of rectifiers 31, 46. Only the direct output winding 25 is connected to receive pulses V1H, the inverted output being induced by transformer action in winding 41 whenever the core is set and reset. The biasing pulse is applied to the inverted output at terminal 45 from the source V2L by way of rectifier 47. Specification 840,050 also is referred to.
Patent GB-647681-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02P1/50
Filed: 1948-07-13
Abstract: 647,681. Synchronous motors. BRITISH THOMSON - HOUSTON CO., Ltd., and CHOUDHURY, S. U. A. July 13, 1948, No. 18820. [Class 35] [Also in Group XXXVII] The rotor windings of a synchronous induction motor are short-circuited or connected through resistances on one axis and energized through a rectifier on the quadrature axis. In the form shown for a small three-phase motor, the rotor winding 2 is short-circuited at E, F and supplied with D.C. on the other axis by a rectifier 7 and transformer 8, which may be tapped, fed from the mains supply. A condenser 9 is connected across the rectifier. The rotor winding may be mesh or star-connected and may comprise only two phases, one of which is shorted and the other supplied with D.C. In larger machines the rotor terminals are connected through resistances which may be external so that tappings can be used or incorporated in the rotor coils where these are short-circuited on themselves as in the two-phase rotor.
Patent GB-378161-A (GB)
Title: Improvements in or connected with the valves of internal combustion engines
IPC: F01L7/08
Filed: 1931-06-30
Abstract: 378,161. Valve mechanism ; regulating. WILKINS, T., 19, St. David's Road, Sou h, St. Anne's-on Sea. June 30, 1931, No. 18824. [Class 7 (vi).] A light conical valve c in the cylinder head, controlling a number of equally-spaced exhaust ports b<1> in a two-stroke engine, is rotated intermittently by Geneva a stopgear comprising a rotating member n<1> carrying a pin n<2> which engages a slotted disc d<1> on the valve spindle. The member n<1> is driven at crank-shaft speed by gearing m<2> and shaft m<1>. Regulating.-The driving-member n<1> is connected to its spindle n<3> by serrations numbered with relation to the number of teeth in the gear wheels m<2> so as to give a vernier adjustment of the timing.
Patent GB-408562-A (GB)
Title: Articles containing rubber and provided with ornamental patterns
IPC: B29C37/00
Filed: 1932-07-04
Abstract: Patterns are produced on articles of or containing rubber, e.g floor and wall coverings, mats, tyres &c., by applying a pattern, e.g. by printing, to a foundation layer, for instance, of unvulcanized rubber or fabric, applying a thin transparent protective layer of rubber, and then vulcanizing.  A backing layer of unvulcanized rubber may be provided to produce rubber articles of a considerable thickness, the whole being vulcanized together. The protective layer may be applied in the form of a rubber solution or dispersion, e.g. latex.
Patent GB-1016206-A (GB)
Title: Improvements in or relating to method of roll bonding stainless steel and aluminium and composite structure formed thereby
IPC: B23K20/227
Filed: 1964-05-06
Abstract: 1,016,206. Producing composite strip; rolling. ALLEGHENY LUDLUM STEEL CORPORATION. May 6, 1964 [May 6, 1963], No. 18926/64. Headings B3A and B3M. Stainless steel strips are roll-bonded to both sides of an aluminium strip by rolling the composite between rolls having a surface roughness of at least 4 microinches r.m.s. and which are held at between 250 and 400 F. The rolls and strips are kept free from any lubricant. The finished composite is suitable for use in deep drawn saucepans. Stainless steel strips 12 and 14 and an aluminium strip 10 are fed, under back tension, past a furnace 28, guide rolls 36, 38, 40, 54, and 56, and to work rolls 50 and 52. The strip 10 is cleaned by wire brushes 66 and 68 before bonding. In an example, type 304 A151 stainless steel is bonded to type 3003 aluminium alloy by heating the stainless steel, to remove any moisture, to 250 F., and the aluminium to 900 F. and passing the strips under back pressures of 10,000 and 6000 p.s.i. respectively between works rolls at 15 ft./min. The aluminium is reduced by 61% and the stainless steel by 5%, the rolls having a surface roughness of 6 microinches r.m.s. Cooling water is circulated through passages in the work rolls to maintain them at a desired temperature The angle between each outer strip and the central strip before bonding is 4 degrees.
Patent GB-294765-A (GB)
Title: An improved electric coupling
IPC: H01R13/20
Filed: 1927-07-18
Abstract: 294,765. Buldin, A. F. July 18, 1927 Addition to 273,490. July 18, 1927. Two-part couplings.-In a socket for use with a jack plug according to the parent Specification the lateral contact strip is forked or bifurcated to engage the plug at opposite sides. It may consist of a resilient wire h bent to form two contact arms and a central eye g through which passes a terminal screw i that secures the contact h to the panel a. The contact sleeve b is connected to the other terminal f by a lug e that may be integral with the sleeve. A collar n carried by the terminal screw f forms a stop for the arms h and may be of metal or insulating material according to whether the jack is employed for series or parallel connections. Additional contacts with which the arms h engage when expanded may be provided if required. The panel a is formed with an integral flange j constituting a hollow-backed rose, the leads entering the space at the back and passing through holes l to the terminals. The sleeve b is formed with an external waist having flats for the application of a spanner.
Patent GB-679193-A (GB)
Title: Improvements in or relating to filters
IPC: B01D35/02
Filed: 1949-07-20
Abstract: 679,193. Filters. HOLLAND, S. T. July 19, 1950 [July 20, 1949], No. 19056/49. Class 46. In a method of filtering and delivering fluid by pump from a container, a pump is selected having a delivery capacity in excess of the estimated demand and the fluid is admitted to the pump through a filter screen on to the outer surface of which the excess pump delivery is directed so as to dislodge therefrom or impede lodgment of matter unable to pass through the filter. As shown, a pump a driven by a petrol engine b is adapted to deliver liquid under pressure to a pipe c. The pump is provided with a byepass e through which excess liquid is returned to the reservoir o. The byepass e terminates in a pipe h formed with apertures whereby the liquid is directed to a filter fitted to the inlet pipe of the pump. The filter comprises a perforated tube f and a surrounding wire gauze g.
Patent GB-666660-A (GB)
Title: Improvements in electric lampholders
IPC: H01R33/46
Filed: 1949-07-21
Abstract: 666,660. Lamp-holders. CRABTREE & CO., Ltd., J. A., and CRABTREE, J. A. July 6, 1950 [July 21, 1949], No. 19204/49. Class 38 (i). A holder comprises a metal strip a provided with bayonet slots d and at one end a tongue b which is pushed into an opening c at the other end and bent round the exterior of the strip to form a sleeve which is keyed into moulded insulating material forming the holder body, Fig. 4 (not shown), through holes e in the strip.
Patent GB-801158-A (GB)
Title: Improvements in the manufacture of tubular metal elements
IPC: B21C37/29
Filed: 1956-06-21
Abstract: 801,158. Making tubular elements; extruding; forging. HUET, A. June 21, 1956 [Aug. 2, 1955], No. 19248/56. Classes 83 (2) and 83 (4). Apparatus for forming a bulge g in one side of a metal tube a by axial compression of the tube, comprises a die b<SP>2</SP> having a main cavity for receiving the tube and a transverse opening c into which the wall of the tube is extruded to form the bulge, and wherein the main cavity is enlarged at d in the region where the bulge is to be formed, to a diameter slightly greater than the external diameter of the tube. The enlargement exists between the oblique lines f. After heating to extrusion temperature, the tube is inserted in the die, which is in two parts b<SP>1</SP>, b<SP>2</SP>, Fig. 2 (not shown), and is compressed therein, without the use of a mandrel, by axial forces F applied at the ends of the tube or by clamping jaws h<SP>1</SP>, h<SP>2</SP>. The enlargement d prevents loss of heat in the central portion of the tube and hence facilitates the extrusion of the tube wall into the opening c. During the compression, hot gases may be passed through the opening c to maintain the temperature or the interior of the tube a may be heated.
Patent GB-442482-A (GB)
Title: Improvements in machines for making, filling and sealing packages
IPC: B65B1/34
Filed: 1935-07-05
Abstract: 442,482. Making, filling, and closing packets. JAGENBERG-WERKE AKT.- GES., 107, Himmelgeisterstrasse, Dusseldorf, Germany. July 5, 1935, No. 19264. Convention date, July 7, 1934. [Class 94 (i)] In a machine for making, filling, and sealing packets, the packets are made at position A, preliminarily filled at B, exactly filled at C, and closed at D. A paper web b is fed through a gumming device 2, severed and formed into bags on formers 3. Carton blanks 5 are added over the bags to formed lined containers, which are stripped at a and guided into the containers 7 of the revolving table 8 of the preliminary filling device B. At this station, the approximate pre-arranged quantity of material, obtained by weighing or filling, is fed into the package. At position c, the package is ejected on to a track 10. As soon as four packages occupy positions opposite transverse conveyer tracks 11-14, they are pushed into these tracks which 'are furnished with automatic weighing devices by means of which the exact weight is attained. The filled packages are guided along a track 19 to the closing device which comprises a rotary table 20 with receptacles 21. The completed packets are ejected at e on to a delivery band f.
Patent GB-1400108-A (GB)
Title: Hydraulic rotary-piston pump or motor particularly for hydrostatic steering devices in motor vehicles
IPC: F04C2/10
Filed: 1973-04-24
Abstract: 1400108 Rotary positive-displacement fluid-machines ZAHNRADFABRIK FRIEDRICHSHAFEN AG 24 April 1973 [29 April 1972] 19281/73 Heading F1F In a gerotor-type hydraulic pump, or motor, a rotary valve 13 controlling the flow of fluid to and from chambers 6 between a fixed internallytoothed ring 1 and a planetary externally-toothed gear 5 has open-ended axial grooves 17 communicating directly with said chambers, the gear being coupled to an input, or output, shaft 8 by a shaft 7 and universal joints, and the valve being either integrated with the shaft 8 or connected to the latter by e.g. a pin 14. The open ends 18 of the grooves may be enlarged, as shown. The universal joints may comprise pins 9, 10; and to compensate for any lack of alignment between the valve and the shaft 8 the pin 14 slides in a radial and axial slot in said shaft. Inlet and outlet connections 19, 20 communicate with apertures 21, 22, respectively, through channels 23, 24, these apertures co-operating with the grooves.
Patent GB-239345-A (GB)
Title: Improvements in or relating to socket tubes for electrical connectors, wall sockets and the like
IPC: H01R13/11
Filed: 1924-08-16
Abstract: 239,345. Arnold, C. L., and M.K. Electric, Ltd. Aug. 16, 1924. Plug couplings; sleeve couplings. - A socket tube for electrical connections having a number of tongues formed therein by intersecting cuts such as described in Specification 136,439, has the metal of the tongues or of the bases thereof reduced in cross-section. The tongues 13, Fig. 4, may be made of less thickness than the end portions 10 of the tube, either by cutting down the central part of the tube or by forming the tongues in a tuba of thin metal and strengthening the ends by shrinking on rings of stouter metal. The bases of the tongues may be reduced by drilling as at 14, Fig. 1, by undercutting, or by grooving.
Patent GB-245372-A (GB)
Title: Improvements in mangles and wringers
IPC: D06F45/00
Filed: 1925-04-17
Abstract: 245,372. Bolton, E. M. April 17, 1925. Pressure arrangements for mangles and wringers.-The pressure of a spring S' is transmitted to girdles d that encircle the brearing blocks a<1> of the upper roller A, through levers K and bearing-plates d<1> in the girdles. In a modification, the casing s surrounding the spring may be replaced by an arrangement including a fixed :and a sliding collar, whilst in another modification straight levers are used, the ends remote from the girdles being subjected to spring pressure.
Patent GB-314534-A (GB)
Title: Improvements in or relating to radio and the like valve transmitters
IPC: H03B5/10
Filed: 1929-06-25
Abstract: 314,534. Telefunken Ges. f³r Drahtlose Telegraphie. June 30, 1928, [Convention date]. Thermionic oscillators.-In a wireless valve transmitter for short waves, in which a split tuned circuit K is connected in series with a blocking-condenser CB between the anode and cathode or between the grid and cathode of the valve and a voltage lead A is connected on the side of the condenser remote from the cathode, the current input choke D, connected at one end to the inductance of the tuned circuit, is connected at its other end to the cathode through a separate condenser c in parallel with the source of voltage, instead of through the blocking-condenser.