baber/WOPTO huggingface dataset:
Patent GB-622184-A (GB)
Title: Improvements in predictors for directing anti-aircraft gun-fire
IPC: F41G5/08
Filed: 1941-06-27
Abstract: 622,184. Electrical calculating-apparatus. GENERAL ELECTRIC CO., Ltd., FARREN, L. I., and RIVLIN, R. S. June 27, 1941, Nos. 8109 and 12372. [Class 106 (i)] [Also in Group XXI] The polar co-ordinates r, #,# of a target are converted into cartesian co-ordinates, the drawing showing how a potential E2 proportional to r sin # cos # and therefore proportional to x is obtained from an alternating current i, proportional to r, and two variometers, whose coils are positioned relatively one to the other at angles #, #, an amplifier 3 being positioned between the variometers. The time derivatives of the variables may be obtained in the manner described in Specification 622,813 and by employing potentiometers or variometers, the co-ordinates of the target at the timed explosion of the shell can be calculated. Alternatively, a gun may be trained permanently and fired automatically when a spot on an oscilloscope coincides with a curve corresponding to the setting of the fuse. One predictor may be arranged to control several guns.
Patent GB-694109-A (GB)
Title: Improvements in or relating to the drying of damp powdered materials
Inventor: SLINGSBY WALTER
IPC: F26B9/10
Filed: 1950-03-31
Abstract: 694,109. Drying sand. SLINGSBY & CO., Ltd., W. March 20,1951 [March 31, 1950; Feb. 5, 1951], Nos. 8132/50 and 2793/51. Class 34 (ii) In a method of drying sand or like granular material the damp material is supported by perforate screens 10 which will retain damp material but allow the passage of dry material and a drying medium is directed against the screens so that dry sand falls through the openings into the region containing the drying medium. Sand in a hopper 1 is supported by inclined screens 10 which constitute a flue passage 13 extending across the hopper from an inlet 14 communicating with a furnace 16 via a flue 17, the furnace having an air blower 20. The sand dried by the furnace gases falls through flue 13 into an outlet structure 5 and is discharged through a valve device 9. Instead of heated gases atmospheric air may be blown through flue 13 by a fan. In a modification (Fig. 6) the screens converge to a flue outlet 27 and a furnace 29 with canopy 28 supplies hot gases. In another modification the canopy supplies radiant heat and in a further modification radiant heat is concentrated on to the screen by a reflector.
Patent GB-1525196-A (GB)
Title: Method of manufacture of electric resistors from a metal sheet
IPC: H05K1/16
Filed: 1977-02-25
Abstract: 1525196 Electrolytic etching apparatus SOC FRANCAISE DE L'ELECTRO-RESISTANCE 25 Feb 1977 [18 March 1976] 08161/77 Heading C7B [Also in Division H 1] The electrolyte, e.g. a mixture of orthophosphoric acid and ethyl alcohol or sulphuric or hydrochloric acid in a cell is pumped so that it flows through holes 18 in the cathode 12 e.g. of stainless steel, towards the anode 1 at a rate of 1 litre per second with a potential difference of 3.5 to 4.5 volts, and a current density of 0À4 to 1À0 A per cm<SP>2</SP>. The anode may be chromium nickel alloy on copper and is etched in the cell to form an electrical resistor of desired shape by means of a mask.
Patent GB-614172-A (GB)
Title: Improvements in or relating to electric built-up character facsimile communication systems
IPC: H04L21/00
Filed: 1946-03-15
Abstract: 614,172. Television; photo-electric telegraph transmitters. STANDARD TELEPHONES & CABLES, Ltd. March 15, 1946, No. 8183. Convention date, April 24, 1943. [Class 40 (iii)] [Also in Group XL (c)] In an electric " built-up " character facsimile communication system in which a train of impulses is produced corresponding to the light and dark portions of a number of parallel strips into which the character is divided, the train of pulses corresponding to a character is repeated, alternate trains being reversed replicas of the others and the receiver includes means for reversing alternate trains of pulses so that they are applied to a character reproducing device as similar trains. The arrangement is utilized to reduce the effect of jamming and of atmospherics. A drum 14 controlled by a keyboard 12 is provided with a set of slots a ... g, Fig. 3, and a further set of slots with opaque portions t ... z corresponding to the slots of the first set, the operated key controlling an associated shutter so that a beam of light impinges on a photo-electric cell, the arrangement being generally similar to that described in U.S.A. Specification 2,365,458. At the receiver, Fig. 2, alternate sets of pulses are reversed in sense before being applied to the control grid of a cathode-ray tube 40 to modulate the beam which is traversed over the screen under control of a scanning generator 52. The control grid of the tube 40 is alternately connected by a switch arm 44 of a relay 46 to the anode and cathode of the final valve 34 of the amplifier 30. The relay 46 is controlled from the scanning source 52 which is driven by a motor 48 and which also controls the scanning generator 54. In a modified receiver, Fig. 5 (not shown), the relay 46 is replaced by an electronic switch, and in a further modification, Fig. 6 (not shown), the input to the reproducer is taken from the two halves of a conducting ring alternately connected to the' anode and cathode of the final valve of the amplifier. In a further arrangement, the reproducer is connected alternately to the outputs of two amplifiers having respectively an odd and an even number of stages, a limiter being introduced between the amplifier with the greater number of stages and the reproducer. The cathode-ray tube may be replaced by a photographic reproducer.
Patent GB-491436-A (GB)
Title: Improvements in or relating to gyratory crushers
IPC: B02C2/04
Filed: 1938-03-17
Abstract: 491,436. Excluding dust. RUMPEL, H. H. March 17, 1938, No. 8262. [Class 12 (i)] [Also in Groups II and XXIV] In a gyratory crusher the crusher head 14 is supported by a plate 24 on a column 9 fixed in a hub in the frame 8. An eccentric 11, driven by gears 20, 21 surrounds the column 9 and gyrates the head 14 and a sealing ring 38 keyed at 39 to the eccentric seals the gears and bearing against dust &c. The sealing ring is provided with split rings 42, 43 and with upper and lower sealing bands 72, 73 concentric to the bores 13 and 12 respectively.
Patent GB-732168-A (GB)
Title: Improvements relating to centrifugal governors
Inventor: GREEN GEOFFREY RALPH
IPC: G05D13/10
Filed: 1953-03-25
Abstract: 732,168. Centrifugal governors. BRYCE BERGER, Ltd. March 25, 1954 [March 25, 1953], No. 8274/53. Class-57. A speed governor comprises spring-loaded centrifugally moved masses 6 mounted on, incorporated in or pivoted to bell-crank levers 3 pivoted on fulcrum pins 4 and connected at their adjacent ends to an axially slidable member 7, and a pair of retaining plates mounted upon a driving part 1 to extend respectively over the two ends of the pins 4. The plates 9, which are T-shaped, are hardened and ground, secured by screws 10 and, limit the end float of the pins 4 and of a pin 8 connecting' the member 7 with the bell-crank levers 3. Pivot pins 5 connect the masses 6 to the bellcrank levers.
Patent GB-127085-A (GB)
Title: Improvements in or relating to Tension Rollers for Travelling Webs of Fabric and other Material.
Inventor: LOWE JOHN
IPC: D06C3/06
Filed: 1918-05-17
Abstract: 127,085. Lowe, J., and Lyth, J. J. May 17, 1918. Feeding webs.-A floating tension roll for controlling the tension of a running web of paper or fabric is partly supported by one or more springs each connected at one end to an irrevoluble support and at the other end to a support revoluble bv the rise and fall of the roll on the web, so that the springs are wound up by the rotation of the revoluble support. As shown, the roll 12 is carried by frames 14 slidable vertically in guides formed by members 11, 15, 16. The frames 14 are connected by tubular stays 17 and a tie-rod 19 pivoted at its ends to brackets 24 on the tramps 14 and adjustable. by a turn-buckle 20. The brackets 24 carry a shaft 23 provided with pinions 22 meshing with racks 21 on the guide-parts 16, and with collars 26 secured to the shaft by keys 30 and screws 31. Springs 25, having their ends secured respectively to the brackets 24 and collars 26, are so arranged on the shaft 23 has to be wound up by the fall of the roll 12, so that violent dropping of the roll on breakage or sudden slackening of the web is prevented.
Patent GB-1358675-A (GB)
Title: Cleaning apparatus for carpets and the like
IPC: A47L11/20
Filed: 1973-01-20
Abstract: 1358675 Carpet cleaning apparatus STEAMATIC Inc 20 Feb 1973 [14 Sept 1972] 8349/73 Heading A4F In a carpet cleaner, a jet of hot cleaning fluid is sprayed on to the carpet by means 36 mounted adjacent a suction nozzle 30. Actuation of the spray means 36 is effected manually by depression of a lever 41 which controls a threeway valve 35 which, in its normal, spring biased, position causes the liquid from container 22 to circulate through tubes 49, 50, 52 via heater 20 under the action of a fluid pump 47. On depression of the lever 41, the return tube 52 is closed off and the fluid is directed through the spray means 36. The dirty fluid is removed from the carpet by suction at the nozzle 30, the fluid travelling up tubes 33, 61 to chamber 24 where it is retained. A suction pump 18 generates the suction at the nozzle 30. Since the fluid is continually pumped through the heater 20, which may be thermostatically controlled, hot cleaning fluid is always available at the spray means 36. In a modification, the heater is mounted adjacent the valve 35 on the tube 33.
Patent GB-663241-A (GB)
Title: Means for sound absorption in ducts for the passage of air or other gases
IPC: F16L55/033
Filed: 1949-03-28
Abstract: 663,241. Silencing gaseous currents. CEMENTATION CO., Ltd.. NEELANDS, A. R.. and ROSEN, A, DE. March 28, 1949, No. 8368/49. Addition to 636.676. Class 7(ii) In the apparatus described in the parent Specification for sound absorption in straight or bent ducts 10 the principal passages formed by the sets of principal partitions 14, 15 and 16. are in at least some sections of the duct subdivided into subsidiary longitudinal passages, such as 20- 24, by subsidiary longitudinal partitions 19 and 25 of sound-absorbing materials. other similar partitions shown at 26 and 27 being associated with principal partitions 15 and 16, respectively. The subsidiary partitions in one set of principal partitions may be staggered in relation to the subsidiary partitions in the next set of principal partitions and they may be either of equal or different lengths. There may also be more subsidiary partitions in one principal partition than in another. the set of partitions lying nearer the source of sound being subdivided to a greater extent than the following sets. The sets of principal partitions are separated from one another by expansion chambers 17, 18 which may be of equal length, Specification 602,918, [Group X], is referred to.
Patent GB-925624-A (GB)
Title: Improvements in feeding slide arrangement for rock drilling machines or the like
IPC: E21B19/081
Filed: 1962-03-05
Abstract: 925,624. Percussive drills. ATLAS COPCO A.B. March 5, 1962 [March 16, 1961], No. 8411/62. Class 124. A feeding slide arrangement for rock drilling machines, such as percussive drills, comprises a feed bar 1, guiding rails 2, a slide 8 movable along the rails, a driving device 3 on the feed bar for feeding or retracting the slide, a drilling machine on the slide and means, such as a wedge 18 for securing the drilling machine to the slide. The driving device comprises a feed screw 3, which may be rotated by an air motor, engaging with a nut 6 having a spigot 7 for sliding movement in a bore 9 formed in the slide; alternatively, the driving device may be a piston-and-cylinder arrangement. The slide is formed with a dovetailed-shaped extension 10 fitting into a similarly-shaped recess in the drilling-machine base 13; slots 19 are provided in the rails 2 to permit insertion or removal of the wedge. In a modification, the mating dovetail surface 11, 16 are formed arc-shaped (Fig. 4, not shown) so that upon insertion of the wedge the drilling-machine is automatically correctly aligned.
Patent GB-678163-A (GB)
Title: Improvements in apparatus for drafting textile fibres
Inventor: AMBLER GEOFFREY HILL
IPC: D01H13/04
Filed: 1949-03-29
Abstract: 678,163. Textile drafting apparatus; rollers. AMBLER SUPERDRAFT, Ltd. March 20,1950 [March 29,1949], No. 8465/49. Classes 120(i) and 120(ii) Apparatus for drafting textile fibres includes a positively driven intermediate roller pair in which each roller terminates at one end in a free end face and at the other end in a flange, the rollers being oppositely disposed so that the free end face of each roller meets the flange of the other roller. The invention has particular application to the high-drafting mechanism disclosed in Specification 671,633. It is stated that rollers of 0.1 inch diameter or less may be employed. The rollers 16, 17 are formed integrally with their supporting shafts 51, 34 and the flanges 26 are formed as end faces of collars 54, 37 secured to the roller shafts by pins and provided with grooves 86, 84. Flutings may be cut in the top roller 16, the included angle of the grooves and teeth having an included angle of about 90 degrees. A roving guide 14 has tongues 82, 83 which enter into grooves 84, 86 to locate the rollers 16, 17 axially. Projections 71 on the guide 14 engage slots 72 in the body 31 of an intermediate unit mounted between two pairs of drawing rollers and adapted to be traversed axially of the drawing rollers and adjusted towards or from the front rollers. A channel-shaped member or flume 18 has an extension which rests on a floor portion of the body 31 and extends into a recess in the roving guide 14. The top roller 16 and its immediate driving gears are mounted in a bracket 57 pivoted on a stud 58 secured in the body 31 and an enlarged portion 59 of the bracket acts as a weight for pressing the intermediate rollers 16, 17 together. Cover plates 67, 68 are arranged to slide into recesses in the body 31 for enclosing the intermediate roller gearing. Specifications 671,637, 671,639 and 671,643 also are referred to.
Patent GB-242519-A (GB)
Title: Improvements in and relating to binders for loose leaves, periodicals and the like
IPC: B42F11/02
Filed: 1925-03-31
Abstract: 242,519. Monamy, W. A. March 31, 1925. Fold-engaging files.-The folds of loose papers &c. are engaged by tubes A<1>, Fig. 2, which are connected to a tube A, by means of staples B formed with sides of unequal lengths. The tube A may be secured to the fold of a pocketbook cover, and when it is desired to replace the leaves the staples B are withdrawn from one end of the tube A<1>, and from the other end of the tube A. To form a hanging file the tube A may be attached to a hanging clip, and for a ledger a tube A of the shape shown in Fig. 5 may receive several sets of staples for securing in position a number of tubes A<1>.
Patent GB-881460-A (GB)
Title: Purification of phthalic acids
IPC: C07C51/487
Filed: 1960-03-10
Abstract: A process for purifying crude phthalic acids obtained by the oxidation of a dialkylbenzene in the liquid phase by means of molecular oxygen or a molecular oxygen-containing gas, comprises the steps of subjecting the crude phthalic acid to contact in an aqueous alkaline solution with sodium or potassium dichromate or permanganate, treating the alkaline solution with activated carbon, precipitating the phthalic acid by adding the thus-treated solution to a second acid having an ionisation constant greater than that of the phthalic acid, separating the precipitated phthalic and washing it with water.  Specified aqueous alkaline solutions are those of sodium and potassium hydroxides, ammonia and trimethylamine. Specified second acids are sulphuric, hydrochloric, acetic, sulphurous and nitric acids.  In examples crude terephthalic acid is purified by the above process. Processes wherein the treatment with permanganate or dichromate or activated carbon is omitted or wherein the second acid is added to the treated solution are described for comparison.
Patent GB-1418138-A (GB)
Title: Adjustable electrical switching-off device
IPC: G01P3/488
Filed: 1973-02-21
Abstract: 1418138 Measuring angular speed electrically R WILKE and H KORTHAUS 21 Feb 1973 [25 Feb 1972] 8552/73 Heading G1N The angular speed of a shaft is measured by an associated tachogenerator producing a fine wave of proportional frequency, which is fed to a series resonant circuit L r , C r , R r  Fig. 3 tuned to the frequency produced at the nominal angular speed. At this speed, the voltage U r  across variable resistor R r  makes a transistor T 1  conduct to lower the voltage U at one input of a differential amplifier, thereby energizing a control relay which maintains the energization of a driving motor. If the angular speed varies by an amount predetermined by R r , the voltage U r  falls sufficiently to open transistor T 1  and the control relay is de-energized to cut off power from the driving motor. An auxiliary circuit C 2 , R 2 , R 3  is introduced via switch A when the motor starts from rest, to prevent operation of the control relay before the normal angular spsed is reached. The tachogenerator Fig. 2 comprises an insulating disc 8 whose periphery carries a corrugated ring 10 of soft iron, which is driven by the test shaft so that the ribs 9 of ring 10 cyclically vary the flux from two permanent magnets 3 coupling with a central coil 4. The voltage induced in coil 4 is a sine wave whose frequency is proportional to the angular speed of the shaft and disc 8.
Patent GB-161818-A (GB)
Title: An improved roller for mangles, wringers and the like
IPC: D06B23/02
Filed: 1920-03-23
Abstract: 161,818. Hunter, A. R. March 23, 1920. Rollers.-A roller for mangling &c. is formed of a cylinder C of inferior wood covered with sheet metal D upon which a rubber sleeve is secured by vulcanizing. The ends may be painted.
Patent GB-1408542-A (GB)
Title: Anthelmintic
IPC: A23K1/16
Filed: 1974-02-26
Abstract: 1408542 Anthelmintic composition MERCK PATENT GmbH 26 Feb 1974 [12 March 1973] 8626/74 Heading A5B 2-benzoyl-4-oxo-1, 2, 3, 6, 7, 11b-hexahydro- 4H-pyrazino [2, 1-a] isoquinoline is effective as an anthelmintic. It may be administered orally as an aqueous dispersion, capsule, powder, tablet, effervescent tablet, dragee or syrup or as a component of animal feed or by oily or aqueous injection.
Patent GB-1207104-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H50/58
Filed: 1969-02-18
Abstract: 1,207,104. Electromagnetic relays. SIEMENS A.G. 18 Feb., 1969 [19 Feb., 1968], No. 8666/69. Heading H1N. An electromagnetic relay having small dimensions in the direction of contact movement has a change-over contact blade 5 mounted in an insulator 1 in the same plane as fixed contact support plates 2a, 2b and the moveable contacts 6, 7 are mounted on arms 5a, 5b at the slotted free end of the blade 5 to co-operate with respective fixed contacts 3, 4 on the plates 2a, 2b. Contact blade arm 5a and the contact supporting end of plate 2b are cranked so that the normally open (3, 6) and normally closed (4, 7) contact sets are side by side and the contact actuator element 8 is retained between the ends of the arms 5a, 5b which overlap each other. A locating pin 8c of the element 8 extends through a hole 5a<SP>1</SP> in the arm 5a and element guides 8a, 8b engage in the armature 9 which is carried on a leaf spring 9a to cooperate with the yoke 10.
Patent GB-740047-A (GB)
Title: Improvements in gun installations mounted on vehicles and in particular on ships
IPC: F41A27/08
Filed: 1954-03-25
Abstract: 740,047. Gun installations on vehicles;  torpedo launchers. BREVETS AEROMECANIQUES SOC. ANON. March 25, 1954 [April 7, 1953], No. 8776/54. Classes 9(2) and 92 A gun is pivotally mounted on a vehicle, e.g. a ship N, about axes XX<SP>1</SP>, YY' for training and elevation and a framework 6 including shoulder pieces 7 and handles 8 is mounted on the gun to control the laying and carries the sighting means 9, 9a, the framework 6 being pivotable with respect to the gun 1 about an axis ZZ<SP>1</SP> constantly parallel to the axis of the barrel. The pivoting movements of the framework 6 have no influence upon the direction of the line of fire and enable the gunner to keep the line of his shoulders horizontal when the ship is rolling. Instead of a gun 1 the installation may include one of several torpedo launching tubes 10, Fig. 3 (not shown), in substantially the same arrangement.
Patent GB-914638-A (GB)
Title: Automatically acting arrester appliance for door-closers
IPC: E05F3/16
Filed: 1959-03-16
Abstract: 914,638. Door closers. GASTERSTADT, H. March 16, 1959, No. 8946/59. Classes 65 (1) and 65 (2). A door controlled by a spring door closer which operates through a pair of toggle levers 1, 3 is held at a predetermined angle by means of a pair of plates 5, 9 mounted on the hinge pin 2 of the toggle assembly and non-rotatably engaged with the respective toggle levers, the plates being pressed into contact with one another by spring means 12, and one of the plates having rollers 7 mounted on radial pivots 8 so as to roll on the surface of the other plate and engage in recesses 11 therein when the predetermined angle is reached. The plates may be integral with the levers or may be formed with notches 6, 10 which fit the ends of the respective levers so that the plates may be used with an existing assembly. One of the plates may be divided horizontally into upper and lower members 15, 16 (Fig. 7), having interengaging radial teeth 17 so that the predetermined angle may be adjusted by relatively rotating the members. The spiral spring 12 may be replaced by one or more cup springs. The hinge pin 2 may be extended at 4 if required.
Patent GB-843301-A (GB)
Title: Improvements in or relating to retainers for securing plug-in electric circuit elements in position on panels or chassis
Inventor: PIPE DAVID JOHN
IPC: H01J19/66
Filed: 1958-03-21
Abstract: 843,301. Switch cases. GOLDSTAUB, H. H. March 23, 1959 [March 21, 1958], No. 9169/58. Addition to 774,707. Class 38 (5). [Also in Groups XXV and XL (a)] A retainer, for plug-in electric circuit elements, e.g. relays, mounted on a panel or chassis, includes a yoke or harness 5 fitted on the envelope of the element 1 at a location remote from the panel or chassis A, two coil spring ties 10, 11, each secured at one end to the yoke or harness and two anchoring members passing through apertures in the panel or chassis and having screw-threaded parts screwed into the other ends of the spring ties and parts, integral with the screw-threaded parts, which cannot pass through the apertures and which are located on the side of the panel or chassis remote from the element. The anchoring members may comprise screws 23, Fig. 1, or modified versions of the studs described in the parent Specification. The screws may be of metal or of insulating material and insulating washers may be interposed between the ends of the spring ties 10 and the chassis or panel A. As shown, the yoke 5 is of rigid insulating material and may be formed with a central apertured dome-shaped portion. It may be secured to the spring ties by separate screws or by screws formed integrally with the yoke. Alternatively, yokes or harnesses of the kind shown in the parent Specification and Specifications 664,457, 629,285, 602,741 and 629,229 may be employed. In a further embodiment the yoke comprises an annulus 28, Fig. 6, provided with 2 pairs of apertures 29, 30 joined by grooves 31 which receive the bights of 2 glass fibre cords threaded through the apertures and joined to the spring ties by means of ceramic links of the kind described in the parent Specification.