baber/WOPTO huggingface dataset:
Patent GB-1117446-A (GB)
Title: Continuous reactions
Inventor: DAIN RICHARD JAMES
IPC: B01J10/00
Filed: 1964-07-10
Abstract: 1,117,446. Gas phase reactors. POWERGAS CORPORATION Ltd. 8 July, 1965 [10 July, 1964], No. 28687/64. Heading B1F. In a continuous gas and/or vapour phase reactor 12, the reaction stream enters through inlet 17 and passes down venturi 20, which is supported by upper supports 21 and lower supports 22, before being deflected back up the chamber outside the venturi to the top where the bulk of the gases are deflected back down the venturi with the incoming stream by baffle plate 23, the relatively slow moving boundary layer adjacent the chamber walls passing through annular space 24 into outlet chamber 16 and outlet 25. The apparatus is particularly suitable for use in the continuous hydrogenation of hydrocarbon distillate oils.
Patent GB-634149-A (GB)
Title: Improvements in apparatus for determining electrical properties of granular or other materials
IPC: G01N27/22
Filed: 1945-10-30
Abstract: 634,149. Electric tests. MARCONI INSTRUMENTS, Ltd., and BROCKELSBY, C. F. Oct. 30, 1945, No. 28773. [Class 37] In bridge arrangements for electrically determining properties of materials, compensation for temperature changes is effected by an element in heat exchange relationship with the material under test producing mechanically a variation of the test or standard arms and also of the ratio arms, the electrical adjustment thereby introduced including both arithmetic and logarithmic components. As shown, for measuring the dielectric constant and hence the moisture content of granular material DT, the material forms the dielectric of a guardring type test condenser KT arranged in a capacity bridge. The out-of-balance voltage of the bridge is applied through a transformer T to an indicator I or it may control a motor arranged to adjust the standard arm KS to maintain the bridge balanced automatically. Compensation for temperature changes of the test material is effected by an element E in heat exchange relationship therewith arranged mechanically to adjust condensers such as KR2, KR3, arranged one to vary either the test or standard arm arithmetically and the other/s to vary one or both the ratio arms logarithmically. The element E, Fig. 2, may comprise the outer casing of a known thermometer movement adapted to move a push-rod P axially with temperature changes. The rod P, through a strip S, adjusts the spring-biassed movable elements of the concentric cylinder type condensers KR2, KR3 in the corrective senses. The element E may be of any form adapted to produce a mechanical change such as a linear or rotary displacement when the temperature changes. For example, it may comprise a -vessel containing an expansible fluid such as toluene, the expansion of which adjusts the degree of immersion of the electrodes of the correcting condensers KR2 &c. in their toluene dielectric. Alternatively, the element E could be a liquid containing Bourdon tube or a bimetallic helix. The material under test. e.g. cereal grains, may flow continuously through the test condenser.
Patent GB-690131-A (GB)
Title: Production of n-alkyl-formamides
IPC: C07C233/00
Filed: 1950-11-24
Abstract: N-mono- or di-alkyl-formamides are produced by a process in which primary or secondary alkamines respectively are reacted at elevated temperature with carbon monoxide or gases containing carbon monoxide under pressure in the presence of alkali or alkaline earth alcoholates as catalyst.  A methanolic solution of alkali or alkaline earth methylate, especially sodium methylate, is suitable as catalyst.  Starting materials mentioned include methyl, ethyl, propyl and higher alkylamines.  Carbon monoxide, water gas or generator gas may be used.  In examples: (1) and (2) N-dimethyl-formamide, (3) N-dihexyl-formamide, (4) monohexyl-formamide, are obtained by heating dimethylamine, dihexylamine and monohexylamine respectively under pressure with carbon monoxide and sodium methylate in methanol. N-methyl formamide is stated to be prepared similarly.  N - Dimethyl - formamide may be employed as a solvent for acetylene or polyacrylonitrile.
Patent GB-465333-A (GB)
Title: Improvements in or relating to radio-receiving systems
IPC: B60M1/26
Filed: 1936-10-23
Abstract: 465,333. Valve detecting circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 23,1936, No. 28888. Convention date, Oct. 26, 1935. [Class 40 (v)] In a radio receiver the received modulated oscillations are supplied to two detectors having different , time constants, and the outputs are so combined that in the case of simultaneous reception of two signals of different intensity the modulation of one of the signals is suppressed. The Figure shows diode detectors D1, S2, fed in parallel and having differing condensers C1. C2 and resistances R1, R2 so as to have differing time constants and demodulation factors. Tappings on the resistances R1, R2 are so chosen that the undesired signal is balanced out in the output of the transformer S. The Specification mathematicallv examines the demodulation of a weak signal by a stronger signal and shows that this effect depends on the time constant of a detector and gives suitable component values.
Patent GB-690551-A (GB)
Title: Improvements in or relating to hydraulically actuated brakes for vehicles
Inventor: GREEN ARTHUR HENRY
IPC: B60T13/16
Filed: 1949-11-10
Abstract: 690,551. Hydraulic brakes. GIRLING, Ltd. Nov. 8, 1950 [Nov. 10, 1949], No. 28901/49. Class 103 (i). In a hydraulic braking system for vehicles, liquid is supplied by a continuously-running pump 27 directly to the working space 13 of a master cylinder 10 by a pipe 25 connected intermediate the master cylinder and the wheel cylinders 24. When the brakes are released, liquid circulates back to the reservoir 29 through a port 21 in a sleeve on the master cylinder piston. When the master cylinder is actuated the port 21 is restricted by a seal 15 so that pressure is built up in the working space and wheel cylinders. A non-return valve 26 on the delivery side of the pump 27 enables the brakes to be applied by pedal effort only if the pump should fail.
Patent GB-195020-A (GB)
Title: Improvements in snatch blocks
IPC: F16H7/18
Filed: 1922-10-24
Abstract: 195,020. LeClair, S. Oct. 24, 1922. Pulley - blocks. - The side plates 2, 3 of a pulley-block are each formed with part of a composite suspending hook 4, the parts having registering slots and projections 5 which are engaged to form a common hook 7. By rotating either of the plates on the pin 9, the two parts of the hook can be separated to insert the rope. The side plates are formed with recessed caps which bear against the ends of the enlarged part 8 of the axle pin, while allowing a slight clearance to the ends of the pulley hub 21. Bolts 13 secure the side plates in position. A grease cup 16 is fitted to the end of the axle.
Patent GB-867804-A (GB)
Title: Improvements in apparatus for monitoring the use of radio receivers
IPC: H04H60/31
Filed: 1957-09-13
Abstract: 867,804. Radio receiving apparatus. NIELSEN CO. Ltd., A. C. Sept. 13, 1957 [Oct. 18, 1956], No. 28940/57. Class 40(5) In a system for producing, at a central station, a record as a function of time of the transmitters or channels received by each of a number of radio receivers situated at respective locations spaced from the central station, there is provided means at each receiver for producing a minuteby-minute record of the channels received and further means whereby once a day the information recorded is played back over telephone lines to the central station at a much higher rate than that at which it was recorded. In a preferred embodiment there is provided at each of a number of homes, each of which may contain a plurality of sound and/or television receivers, a multiple-contact rotary switch 35 having a wiper arm which is rotated once a minute and fixed contacts which are connected, as indicated, to coding units 18 associated with the receivers. The coding units are constituted by resistor matrices as described in Specification 819,524 and indicate by the presence or absence of a signal on each output lead the channel to which the respective receiver is timed. Further fixed contacts are used for providing signals marking the commencement of each minute cycle, providing time marks once an hour and once a day and for indicating the restoration of power after a power failure. Accordingly a train of pulses is produced on conductor 54 indicative of the tuning condition of each receiver and, after amplification by thyration valve 60, this signal is recorded on a magnetic tape moving at the rate of 1 inch per minute, Fig. 3 (not shown). Once per day each "home" is called by telephone by the central station, on receipt of ringing tone a self-holding relay is operated to actuate the cradle switch whereupon a further 1,200 c./s. tone is sent from the central station. This actuates a further self-holding relay to cause the tape to be played back at a rapid rate (8 inches per second), the signal developed in the pick-up head being transmitted to the central station. At the end of a suitable interval a motor-driven cam-operated switch controlled by the first self-holding relay closes to cause the self-holding relays to drop out and the normal recording procedure to recommence.
Patent GB-431104-A (GB)
Title: Improvements in or relating to props or stanchions
IPC: E04G25/04
Filed: 1934-10-10
Abstract: 431,104. Mine-props. PERRIN, P., 55, MarchÚ aux chevaux, Bethune, France.- (Assignee of Gamot FrÞres; 136<bis>, Faubourg d'Arras, Bethune, France) Oct. 10, 1934, No. 29003. Convention date, Oct. 12, 1933. [Class 20 (ii)] A prop comprises a hollow lower member 1 and a solid upper sliding member 3 provided with a head 6 and with a rack portion the teeth 5 of which are adapted to be engaged by a pawl 9 pivoted within the hollow member 1. This pawl is formed with a slot 13 through which the teeth of the rack may pass, and is pivoted on two pins 11<a>, 11<b> at its sides ; the pivot is thus brought to a position directly above the bearing surfaces between the teeth and the pawl. The bearing surfaces of the pawl and of the rack teeth are struck from the pawl pivot as centre. A projection 16 on the rear of the pawl is apertured to receive the pawl disengaging means, in order that the prop may be collapsed from a distance. The lower hollow member may be formed of two channelsection bars 2 surrounded by sleeves 7.
Patent GB-172811-A (GB)
Title: Improvements in mechanical toys
IPC: A63B67/10
Filed: 1920-10-14
Abstract: 172,811. Kent, C. C. Oct. 14, 1920. Parlour games.-Apparatus for playing a game comprises a board 1 upon which is adjustably mounted a mechanical figure 5 having a pivoted leg 7, which is held normally in its retracted position by resilient means and is operated by a pulling-cord so as to propel a ball mounted upon a wire frame through an aperture formed in a member 15 detachably mounted upon the board. The figure and board may be marked so as to represent a football player and pitch respectively.
Patent GB-391479-A (GB)
Title: Improvements in or relating to feed mechanism for grinding or abrading machines and other machine tools
IPC: B24B47/20
Filed: 1931-10-20
Abstract: 391,479. Driving machines. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN, 17, Artillerigatan, and HJARPE, E. G., 21, Sveagatan, both in Gothenburg, Sweden. Oct. 20, 1931, No. 29165. [Class 83 (iii).] A feed mechanism for grinding-machines and other machine tools comprises automatic feeding means, a movable speed control member therefor, a drive for the work or tool, and an operative connection between the drive and the control member to alter the position of the member to control the rate of feed in accordance with the torque being transmitted by the drive. As applied to a grinding-machine, the grinding-wheel 1 is carried by a spindle 2 mounted in a carriage 3 and driven by a pulley 4 rotatable on the spindle. The pulley is connected at one end to a bushing 5 formed at one end with screw surfaces 8, 9 and surrounding the spindle is an axially movable bushing 10 to which is connected a bushing 11 provided at its end adjacent the bushing 5 with two screw surfaces 14, 15, between which and the surfaces 8, 9 are steel balls 16, 17. The bushing 10 drives the spindle through dogs 19 and a ring 20 keyed to the spindle, and the bushing also is connected to a plunger 24 by a pin 23 movable in a slot 63 in the spindle. Axial movement of the bushing 11 is resisted by a spring 25, mounted in a housing 31 and acting on the bushing through a ball bearing 27, the outer end of the spring engaging a ring 28 in which is mounted a ball bearing 29 for the spindle axially adjustable by a nut 33 to adjust the tension of the spring. When the cutting resistance changes, a relative turning movement occurs between the bushings 5, 11, the bushing 11 moving axially along the spindle and, through the plunger 24, actuating a bar 35 communicating with a speed varying mechanism for the feed screw 39, and thus varying the feed until the cutting resistance is restored to the normal. To prevent oscillation of the feed control mechanism, the bar 35, is connected to a piston 42, which draws oil from a chamber 41 through a one-way valve 45 into a cylinder 46, return movement of the piston under the action of a spring 47 being retarded by a restriction formed by a screw 49 in the exhaust passage 48. The variable speed mechanism consists of a friction disc 50 driving a cylinder 54 on the feed shaft 36 through two balls, or wheels &c. 53, in a bushing 66 mounted in a shifter 55 movable by a collar 40 on the piston 42 and a screw 56; the shifter 55 may be set in an inclined position by a screw 62. In place of the variable speed mechanism described, hydraulic, electric or other means may be employed. The screw surface may be on one only of the bushings 5, 11.
Patent GB-153783-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D29/14
Filed: 1919-11-24
Abstract: 153,783. Wilfley, A. R. Nov. 24, 1919. Stuffing-boxes, substitutes for; with packing-device acting when apparatus is at rest.-In a centrifugal suction pump of the type in which an opening in the casing surrounding the shaft is sealed, during the normal operation of the pump, by a centrifugal water seal, a subsidiary rubbing-collar packing-device is provided, which is operative at low speeds, or when the pump is stationary; but, at ordinary speeds, is thrown out of action by a centrifugal governor. An opening 18 between the shaft 10 and the wall 15 of the casing 13 containing the centrifugal seal 12 is in communication with an opening 17 giving access to the pump 8 and with an opening 19 communicating with the atmosphere. The opening 19 is between the shaft 10 and a part 20 mounted on a flexible diaphragm 21 carried by the casing. When the pump is at rest, a member 22 on the shaft 10 contacts with a packing member 23 on the part 20 to form a joint which seals the opening 19 and the pump casing from the atmosphere. When the pump is rotated at normal speeds, this joint is opened by the movement of the part 20 through the medium of an arm 27 secured to the part 24 of a centrifugal governor 25 allowing air to enter, by the openings 18, 19 to the casing 13, where the action of the centrifugal seal 12 prevents the entry of air into the pump casing.
Patent GB-1485388-A (GB)
Title: Metal-pigmented plastic powder
IPC: C09D7/80
Filed: 1974-07-02
Abstract: 1485388 Powder paints ALUMINUM CO OF AMERICA 2 July 1974 [19 July 1973] 29318/74 Headings C3F C3P C3R and C3B A powder comprises mutually separated metal flakes attached to the surfaces of plastics particles. The bodies of the plastics particles are optionally pigmented and optionally contain metal particles. The powder may also comprise pigmented plastics not bearing metal flakes. The metal may be Al, gold bronze (Cu/Zn), or zinc. The flakes may be "leafing" or "non-leafing", the "leafing" particles being coated with, e.g. stearic acid. The flakes may have particle size 7-15 Ám, or 85% wt. may be 30-50Ám., or they may pass 325 mesh Tyler. The plastics may be thermosetting or thermoplastic, e.g. epoxy, acrylic, cellulose acetate butyrate, or poly-(cyclohexylenedimethylene terephthalate/ isophthalate) resin. There may be <30% wt. metal flakes based on total (metal+plastics). The metal flakes and plastics particles may be brush-polished together. The powder may be melted to yield a continuous film. It may be coated on steel by use of electrostatic spray gun.
Patent GB-1110873-A (GB)
Title: Improvements in and relating to fluid pressure braking systems for vehicles
Inventor: CHOUINGS LESLIE CYRIL
IPC: B60T13/58
Filed: 1964-07-17
Abstract: 1,110,873. Braking system. AUTOMOTIVE PRODUCTS CO. Ltd. 19 July, 1965, [17 July, 1964], No. 29348/64. Heading F2E and F2F. A fluid pressure braking system for vehicles comprises hydraulically operated brakes 3 for one set or sets of wheels and pneumatically operated brakes for a further set 2 or sets of wheels, a pedal operated tandem master cylinder 6 having a primary chamber connected to the hydraulic circuit of the hydraulically operated brakes, an air pressure servo unit 15 for providing power assistance to the hydraulically operated brakes, first and second sources 19, 51 of compressed air connected to the pneumatic circuit of the pneumatically operated brakes and valve means 31, 32 jointly operable hydraulically by the master cylinder, operation of the first valve 31 resulting in actuation of the servodevice to provide power assistance to the hydraulic brake, operation of the second valve 32 connecting the air brakes to the second source. Fluid from the primary chamber 8 of the master cylinder 6 passes direct by line 29, 25, 26 to the hydraulic brake cylinders 3, and by line 43 to the space 42 between a floating piston 38 and a piston 39 operating valve 31. The secondary chamber 11 is connected, by line 45 to a similar space 44 between the floating piston 38 and a piston 40 operating valve 32. Operation of the master cylinder results in the opening of both valves, the valve 31 then connecting lines 47, 48 to allow compressed air from primary reservoir 19 to operate the servomotor 15 to augment through line 25 the pressure to brake cylinders 3, and further connecting lines 47, 49 to supply the smaller chambers 46 of the tandem air brake cylinders 4, 5. The operation of valve 32 connects the line 53 of secondary reservoir 51 to line 54 leading to the larger chambers 56 of the cylinders 4, 5. Valve 32 is also operable, by a cable 59, from a hand brake 57, 58. The master cylinder has a common plug 14 for bleeding the primary and secondary circuits. The specification gives examples of the braking efficiencies available when certain sections of the system are rendered inoperative. In a modification (Fig. 2, not shown) the pistons 39, 40 are of different diameters. The application of the system to a tractor - trailer combination with hydraulic brakes and air brakes on the tractor, the trailer having air brakes, is described with reference to figures 3 and 4 (not shown).
Patent GB-408345-A (GB)
Title: Improvements in or relating to tracer devices for use on flame cutting machines
IPC: B23K7/00
Filed: 1932-10-20
Abstract: 408,345. Dividing by fusion. GLOVER, J. P., Milburn House, Dean Street, Newcastleon-Tyne. Oct. 20, 1932, No. 29392. [Class 83 (iv).] In flame cutting machines of the kind comprising a swinging arm on which a tracer and the cutter nozzle are mounted, a stylus is mounted so that its point is in axial alignment with the nozzle and is arranged to travel in a profile guide groove, means being provided for moving the stylus mechanically along the groove. The boss 1 of the upper arm of a bifurcated jointed swing- ing arm, the lower of which carries the nozzle, has movable therein by a rack and pinion 22, 23 a casing 5, on the lower end of which is pivotally mounted a bracket 7 having a lug 8 in which is mounted a stylus 9 engaging a groove 11<1> in a template. The stylus is spring-pressed and the end engages the groove at a point lying in the axis of the nozzle and may be provided with a latch 12 which may be turned over the end of the adjusting nut 13 to hold the stylus in retracted position. The casing is pressed down by a spring 6 and may be held in raised position by a detent 25 on the boss engaging a recess 26. The arm is traversed by a knurled roller 15 mounted in the bracket 7 and driven by bevel gear 16, 17 and worm gear 19, 20 from the machine feed gear or electric motor &c. or the motor may be fixed to the casing with its shaft in alignment with the shaft 18 which it drives through reduction gear. An air motor may also be used driven either by the oxygen or by the combustible gas. The template may be of wood, metal, composition or wax or a bent V-section strip fixed to a wood base. The template may be arranged above the tracer.
Patent GB-356959-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02K27/06
Filed: 1930-10-01
Abstract: 356,959. Alternating current commutator motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Oct. 1, 1930, No. 29406. Convention date, Oct. 1, 1929. Drawings to Specification. [Class 35.] A repulsion motor driving knitting machines of the Cotton type has two or more independent brush sets which can be independently shortcircuited for obtaining different motor speeds. One or more of the brush sets may be adjustable within limits for speed regulation. The switch for effecting the change from a high to a lower speed may be actuated by the cam chain of the knitting machine and a slight delay is desirable between the opening of the high-speed brush circuit and the closing of the low-speed circuit so that the motor may exercise a braking effect. The switch is returned to the high-speed position by a spring. In the case of a motor having a multiple wave wound armature for operation at two speeds, the brushes of a set are at right-angles to each other and the two sets can be located on opposite sides of the commutator.
Patent GB-761019-A (GB)
Title: Improvements in or relating to a double velvet loom operating with two shuttles
IPC: D03D45/34
Filed: 1954-10-12
Abstract: 761,019. Automatic bobbin changing in double velvet looms. GUSKEN, T. A. [trading as GUSKEN, T. A. [Firm of] ], and JANSEN, O. Oct. 12, 1954 [June 2, 1954], No. 29427/54. Class 142 (2). A double velvet loom has, at that end remote from bobbin changing apparatus 5, the usual double celled shuttle box and, at the other, a single celled drop box 4 which, after a shuttle has been picked from it, moves to receive the other shuttle picked simultaneously from the other end of the loom. In order that the lower shuttle may be replenished, the box 4 is also movable vertically under feeler control. The normal up and down motion of the box 4 is produced by a cam operated rod 21. When the lower shuttle is to be replenished, the feeler causes a latch 31 to release an arm 28, which is thereupon swung upwardly by a spring 29 to bring the arm's sloping end into the path of a roller 26 on the rod 21, to lift the rod.
Patent GB-519268-A (GB)
Title: Improvements in or relating to processes for treating naturally occurring starchy materials in order to saccharify them
IPC: C13K1/06
Filed: 1938-10-11
Abstract: 519,268. Saccharifying starch. USINES DE MELLE. Oct. 11, 1938, No. 29465. Convention date, Oct. 26, 1937. [Classes 14 (ii) and 127] Starchy material such as manioc, potato slices or sweet potatoes, is freed from substantially all the contained mineral matter and then saccharified by means of acid to form glucose. The mineral matter may be removed by washing with water or acid solutions in the cold in counter current diffusion apparatus. The converted starch liquor may be mixed with the washing liquor containing the mineral matter to provide a fermentable wort.