baber/WOPTO huggingface dataset:
Patent GB-464141-A (GB)
Title: Improvements in or relating to electric oscillation generators
IPC: H03K4/34
Filed: 1935-10-29
Abstract: 464,141. Valve generating circuits. FERRANTI, Ltd., and WILSON, J. C. Oct. 29, 1935, No. 29794. [Class 40 (v)] In order to develop a current or voltage of true saw-tooth form through or across an inductance or resistance in the anode circuit of a screen-grid valve, the screen is coupled to the anode circuit. Voltage impulses produced by the back-coupled valve 1 are used to time the discharges of a condenser 17 through a triode valve 13, the condenser being slowly charged through a device 16. The defective saw-tooth voltage developed across the condenser 17 is applied to the control grid of a pentode valve 22, the anode circuit of which comprises a resistance 27 shunted by a condenser 30 and scanning-coils 31. The screen is supplied with direct current through a variable resistance 29, and the voltage across the coils 31 is applied to the screen through a variable condenser 32. Alternatively a coil in series with the coils 31 may be coupled inductively to the screen-grid circuit, Fig. 7 (not shown). When a saw-tooth voltage is required across the resistance 27, the coils 31 are omitted.
Patent GB-244581-A (GB)
Title: Improvements in or relating to the construction of damping and inking rollers for printing machines
IPC: B41N7/06
Filed: 1924-12-11
Abstract: 244,581. Strachan, W. Dec. 11, 1924. Rollers.-A damping or inking roller for printing-machines is formed of perforated felt discs 1 threaded on a stock 3 and enclosed in a sheath 9. The discs 1 are secured between washers 7, 8, one of which abuts against a stop 4 and the other being adjusted by a nut 6. Stiffening-discs 10 of less diameter than the felt discs and of aluminium or other metal or material not susceptible to attack by printing ink, may be interposed between the felt discs, and the felt discs may have additional perforations. The sheath 9, which is of moleskin in the case of the damping- roller and of leather or like material in the case of an inking-roller, has its ends drawn in and stitched over the washers 7, 8.
Patent GB-175696-A (GB)
Title: Improvements relating to concrete blocks for building purposes
IPC: E04B2/46
Filed: 1920-10-21
Abstract: 175,696. Kelly, C., and Belvoir, T. Beevers-. Oct. 21, 1920. Slabs; building-blocks, special shapes of.-A concrete building-block comprises at least three elements a, b, d stepped relatively both horizontally and vertically. Grooves b<1> of semicircular, scalloped, or starshaped cross-section are provided along all the edges in one or more of the sections. Vertical and horizontal passages c, c<1> are provided through the block ioining the grooves in the edges. When in position, ,the vertical passages in one row of blocks coincide with the grooves in the edges of two adjacent blocks in the rows above and below. Shaped rods may be passed through these passages. The front face d may have chamfered edges d<1>. The foundation block e, Fig. 4, is of greater width than the wall block, and is shaped to receive the lower horizontal surface and may have a rib e<3> to engage, the groove in the lower edge of the block. Flanges e<4> may be provided at both the front and the rear.
Patent GB-784467-A (GB)
Title: Improvements in relay devices for electricity supply systems
IPC: H01H37/50
Filed: 1955-10-19
Abstract: 784,467. Thermal switches. HORNE, R. F. (Koch, S. J.). Oct. 19, 1955, No. 29844/55. Class 38 (5). [Also in Group XXXV] A circuit is closed through load 18 when the spring-loaded arm 58 of switch 55 is moved to engage terminal 56. Current then passes from the secondary winding 13 of a transformer 11 through a thermal expansion wire 46 and a spring-finger 35. The elongation of the wire 46 causes the finger 35 to straighten so that insulating button 39 shifts an actuator 40 for engaging contacts 20, 22, and closing the circuit through the load. The movable contact 22 is mounted on a flexible metallic arm 24 adapted for snap-action and having one end fixed to an insulating base. The arm is provided with an apertured portion 29 into which extends a spring tongue 30 integral with the arm. Recesses in the actuator 40 engage an end of the fixed portion of the arm 24, and the free end of the tongue, respectively. The arrangement is such that when the tongue is raised and lowered the contacts 20, 22, are respectively separated and engaged, the movements of the actuator 40 being toggle-like in effect, causing snap-action movements of the arm 24. Release of the switch-arm 58 returns it to its neutral position, thereby opening the circuit through the wire 46 and consequent cooling and contraction of the wire, to urge the spring-finger 35 to its outward position. The load 18 remains energized, however, until the switch-arm 58 is engaged with terminal 57 whereby current passes through spring-finger 34 and thermal expansion wire 45. Thus, button 38 engages actuator 40 and contacts 20, 22 are separated. Release of the switch-arm disconnects the wire 45 which contracts to bring the spring-finger 34 back to the flexed position shown.
Patent GB-246965-A (GB)
Title: Improvements in dip rods for measuring the contents of barrels, tanks, casks and thelike
IPC: G01C13/00
Filed: 1924-12-12
Abstract: 246,965. Watkins, T. J. Dec. 12, 1924. Drawings to Specification. Dipping-rods.-A dipping-rod is formed of triangular cross section, and of dull black material. The sides are graduated, and one end is pointed.
Patent GB-680082-A (GB)
Title: Improvements in motor bicycle frames with rear wheel springing
IPC: B62K25/28
Filed: 1950-12-06
Abstract: 680,082. Motor-cycle frames. NSU WERKE AKT.-GES. Dec. 6, 1950 [Oct. 21, 1948], No. 29904/50. Class 136 (iii) In a motor-cycle frame with rear wheel springing in which the main frame is formed by a tube, on which the rear fork is supported, the tube 1 merges towards the rear into a boxlike sheet metal body 3 which is continued downwards, where its ends are formed to embrace the motor 4. The tube 1 may be welded to the body 3 (Fig. 1) or the tube and body may be rolled out of a single metal sheet. The rear fork 6 is pivoted at 5 to the body 3 and comprises two side parts held together by a tube 8 which supports a spring arm 9. The arm 9 is connected to a spring 10 which is screwed into a socket 11 in the tube 1. A shock absorber 12 of the friction type is mounted inside the body 3 and is provided with a sliding head which bears with resilient side-pieces against friction surfaces and is so formed that the motion of the shock absorber is braked more in one direction than in the other. Alternatively, the shock absorber may be of the oil controlled type. The interior of the body 3 may form a receptacle for the battery or the tools. The body 3 also acts as a support for an overhanging pillion seat or luggage carrier.
Patent GB-427893-A (GB)
Title: Improvements in screws
IPC: F16B23/00
Filed: 1933-10-27
Abstract: 427,893. Screws. FITZPATRICK CORPORATION, 421, 5th Avenue, Portland, Oregon, U.S.A. Oct. 27, 1933, No. 29905. Convention date, May 9. [Classes 89 (i) and 89 (ii)] The driving recess of a screw is formed by opposing slots 8 tapering inwardly and connected by convexly curved surfaces 6 also tapering inwardly. In a modification the curved surfaces 6 are replaced by convex polyhedral surfaces. The bottom of the recess is conical. Specification 427,892, [Group XXIII], is referred to.
Patent GB-1432259-A (GB)
Title: Exercising device
IPC: A63B21/008
Filed: 1973-06-22
Abstract: 1432259 Exercising device H DUNKELGOD 22 June 1973 [1 July 1972 7 Nov 1972] 29918/73 Heading A6M An exercising device consists of two bladders of the same size and shape and made of flexible impermeable sheet material, the interiors of the bladders being connected to one another by connecting means and one of the bladders being provided with an inlet for filling the bladders with a filling medium, the arrangement being such that it is possible to effect a transfer of the filling medium between the two bladders through the connecting means alternately in one direction or the other by subjecting the two bladders to the alternating application and removal of force applied by parts of the human body. The filling medium may be air or water. In a first embodiment (Fig. 1) the two bladders 10, 20 are joined by a tube 30 including a flow restrictor 31 and the bladder 20 is provided with a mouthpiece for inflating the bladders 10, 20. The device may be used to exercise the hands by alternating grasping and kneading motions of the hands. Other examples of use include transmitting alternating forces to the device by means of the feet from a standing position or by means of the palms of the hands from a semi-prone position with the weight of the body supported by the arms. In another example one bladder supports the head and the other bladder supports the buttocks, the head and buttocks being alternately raised. The tube 30 may be removably connected to the bladders 10, 20 so that tubes 30 of different lengths may be used, the length of the tube depending on which parts of the body to be exercised. In a modification (Fig. 2) the device is made from two sheets of material welded together to form the bladders 10a, 20a, and including welds 5a, 5b which define a connecting piece 35 including a connecting opening 30a. In a second embodiment (Fig. 5), particularly suitable for exercising the hands, the bladders 41, 42 are oval in shape and the device is formed by welding together sheets 45 to 48 along their outside edges 49, 50 and at their centres 51 leaving a connecting opening 44. The bladder 42 is also provided with a mouthpiece 43.
Patent GB-629511-A (GB)
Title: An improvement in or relating to electrically-driven centrifugal machines
IPC: B04B9/08
Filed: 1947-11-11
Abstract: 629,511. Actuation of switches; control of motors. BROADBENT & SONS, Ltd., T., and HALLITT,W. Nov. 11, 1947, No. 29951. [Classes 38(iii) and 38(v)] In a centrifugal machine driven by a reversible motor, a member c, associated with the motor spindle or some other rotating part of the machine, carries two or more radially-movable shoes d which are urged by springs e towards a flange on a ring-shaped member f rotatable about the axis of the motor spindle. When the machine is running normally, the shoes are held out of engagement with the flange by centrifugal force. The member f has a limited angular movement between two stops. To stop the machine, the driving torque of the motor is reversed by the switch i and as the machine slows down, the shoes d engage the ring member f and carry it around in the direction of the basket until it reaches one of the stops. When the machine reverses, the member f moves with it and 'an arm g thereon operates the switch to cut off the current supply to the motor.
Patent GB-1118986-A (GB)
Title: New thiomorpholine derivatives and process for their manufacture
IPC: C07D417/04
Filed: 1966-07-04
Abstract: The invention comprises thiomorpholines substituted on the nitrogen atom by a 5-nitrothiazolyl-(2) radical, and their preparation by reacting a 2-halo-5-nitrothiazole with a thiomorpholine. Pharmaceutical compositions, which are active against amoebae, comprise a compound of the invention together with a pharmaceutical carrier. The compositions may be in a form suitable for enteral or parenteral administration or, in veterinary medicine, in the form of an animal foodstuff.
Patent GB-324076-A (GB)
Title: Improvements in inflatable floating rubber bodies
IPC: B63C9/08
Filed: 1928-10-17
Abstract: 324,076. Dorogi, L., Dorogi, I., and Dorogi Ús Tßrsa Gummigyar R. T., Dr. Oct. 17, 1928. Pneumatic toys. - Inflatable rubber lifebelts and toys are divided into compartments by longitudinal partitions which lie parallel to those walls which, in the deflated state of the body, naturally fall together. The edge of the partition 14 may be pressed between the edges of the walls 7, 8 as in Fig. 1, or the partition may be formed of the walls 23, 24 of bodies 28 cemented together along a seam 27 or over the entire surface 29. The intermediate member 26 may be constructed also by welding two sheets 23, 24, and subsequently welding their edges to the outside sheets 21, 22.
Patent GB-1371324-A (GB)
Title: Tractor linkage
IPC: A01B63/02
Filed: 1971-09-22
Abstract: 1371324 Tractor hitch E H MARTIN and R C RICHMOND 22 Sept 1971 [22 June 1970] 30071/70 Heading A1P A tractor hitch assembly comprises a first lateral frame 17, attached to the three point linkage 12, 13, 14 of the tractor 11, and a second frame 18, parallel to the first, connectable to a reversible plough 25, the second frame being slidable between rollers 19 fixed to the first frame, the relative movement between the two frames being afforded by a double acting hydraulic ram 23. More than two frames may be used with an hydraulic ram between adjacent frames. For Figures see next page
Patent GB-855287-A (GB)
Title: Improvements in reversing valves for fluid-operated motors
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: F15B11/15
Filed: 1958-09-20
Abstract: 855,287. Engine valve-gear. LAYCOCK ENGINEERING Ltd. Sept. 10, 1959 [Sept. 20, 1958; March 21, 1959], Nos. 30129/58 and 9865/59. Class 122 (2). A reversing valve unit for a compressed air motor comprises a main distributing valve 22 operated by compressed air controlled by a pilot valve 36 mechanically actuated from the motor drive unit, the valves being slidably mounted in cylinders 21 and 34 arranged transverse to each other in a common valve body 11 and the pilot valve having two spaced pistons 44 forming between them an exhaust chamber 45 communicating with an exhaust port 46 in the valve body and controlling passages 53, 54 leading to opposite ends of the main valve cylinder 21, an air inlet (not shown), in the body communicating with both ends of the pilot valve cylinder 34. The main valve comprises operating pistons 25, 23 at opposite ends and a central transfer piston 24 co-operating with ports 51, 52 in one end of the cylinder 34, the ends of which are interconnected by passages 49 in the pilot valve. Passages 28 and 17 and 29 and 18 lead to opposite ends of the motor cylinder 12, respectively, which are alternately connected, by movement of the valve 22, with ports 51 and 52 and passages 32 and 33 through chambers 26 and 27 in the valve, respectively; the passages 32, 33 being connected to an arcuate exhaust passage 31 open to atmosphere. The pilot valve 36 is actuated by the motor piston 19 through a lost-motion connection, a head on the valve stem 37 engaging a slot in the motor piston-rod. A drip feed lubricator is housed in a chamber in the valve body communicating with the cylinder 34.
Patent GB-717907-A (GB)
Title: Improvements in or relating to yarn clearers
IPC: B65H63/06
Filed: 1950-12-13
Abstract: 717,907. Yarn clearers. DOLL, J. Dec. 13, 1950 [Dec. 19, 1949], No. 30487/50. Class 120(2) A yarn clearer for textile apparatus comprises thread guides to determine the normal path of the yarn, selecting means obliquely arranged across the said path and providing a slot of increasing width and open at both ends, for the passage of the yarn, the said selecting means being adapted to cause a lateral displacement of the yarn on one side of its normal path whenever a knot or slub on the yarn encounters the said selecting means, and stopping means arranged at a predetermined distance beyond the said selecting means in the direction of feed of the yarn, the said stopping means being laterally offset with respect to the normal path of the yarn in the direction in which the yarn may be displaced by the selecting means and providing a slot of a predetermined constant width and opened at least at the end thereof adjacent to the normal path of the yarn, and wherein the yarn engages when it is laterally displaced by the selecting means, the stopping means and its slot extending beyond the end of the slot provided by the selecting means, in a direction away from the end adjacent the normal path of the yarn. As shown the normal path of the yarn is defined by the guides 2, 2, the selecting means consists of a slot between a vertically adjustable plate 9 and an obliquely arranged blade 15, and the stopping means of a slot between the plate 9 and the stop blade 20 carried by arms 28 mounted on spindle 21. The blade elements are carried in a cage 17 which is hingedly attached to the base plate 12 and held in the operative position by the spring 26. In operation when a slub or knot is encountered by the selecting blade 15 it runs along the blade, drawing the yarn away from its normal path and under the stop blade 20. The selecting slot diverges slightly so that the slub or knot eventually passes through the slot and whether or not the slub or knot is then caught by the stop blade depends on its length. Thus slubs or knots of a predetermined apparent surface area (i.e. length times diameter) are prevented from passing on, whilst slub or knots having less than this predetermined area are allowed to pass. Specification 596,999 is referred to.
Patent GB-262447-A (GB)
Title: Improvements in the manufacture and production of phosphorus acids and hydrogen
IPC: C01B3/06
Filed: 1926-12-02
Abstract: 262,447. I. G. Farbenindustrie Akt.- Ges. Dec. 3, 1925, [Convention date]. Hydrogen.-The steam required for the production of phosphoric acids and hydrogen by the interaction of steam and phosphorus is recovered to a large extent from the residual gases by passing them into a water-cooled condenser maintained at a temperature of 100‹ C. or above which thus acts as a steam generator. The uncondensed gases then pass to a second water-cooled condenser maintained below 100‹ C. whereby the hydrogen is completely freed from water and simultaneously steam below atmospheric pressure is produced. By compressing this further quantity of steam it is raised above atmospheric pressure and becomes available for re-use. In a modification, the first condenser maintained at a temperature above 100‹ C. is dispensed with. Tin bronze, aluminium bronze, ferrosilicon, and an alloy of copper, aluminium, and iron may be used for the condensers which, in an example, take the form of a tube-boiler.
Patent GB-206363-A (GB)
Title: Method of manufacturing a nitrogen assimilating manure
IPC: C05F3/00
Filed: 1922-11-08
Abstract: 206,363. Jorgensen, P. Nov. 8, 1922. Manures. - A manure is obtained by mixing finely divided tuberous roots of leguminous plants with neutralized and sterilized organic earth, nitrifying bacteria being added after the mixture has been allowed to stand until the nitrogen-assimilating bacteria in the roots develop actively, sunlight being excluded. The organic earth is neutralized with lime or phosphate of lime and mixed with water-closet manure, which causes its temperature to rise. The temperature is afterwards reduced to 30 or 35‹ C. The nitrifying bacteria may be supplied by adding earth containing them. Natural manure and marshy soil may be added to the mixture.
Patent GB-365521-A (GB)
Title: Improvements relating to means for varying the timing of the ignition of internal combustion engines
IPC: F02P5/07
Filed: 1930-10-13
Abstract: 365,521. Timing ignition and fuelinjection. ELVERSON, A. J. H., 10, Clifton Road, Wimbledon, London. Oct. 13, 1930, Nos. 30578 and 33570. [Classes 7 (iv) and 7 (vi).] In a centrifugal device for controlling the timing of ignition or fuel-injection, the radius of the centrifugal masses is varied as they swing outwards by a cam surface, which is adjustable in accordance with load requirements. The Figure shows weights 6 slidable on levers 5 pivoted at 7 to a fixed sleeve 3, and engaging at 5a a slidable sleeve 12, the movements of which vary the position of one or more balls 13 engaging straight grooves 8 in the sleeve 3 and helical grooves 11 in the driving-member 10, the angular position of which is thus adjusted relatively to the driven member 1. The weights 6 contact with a cam surface 9 which is axially adjustable along the sleeve. 3 by means of a lever 15, which may be automatically actuated by the suction in the induction pipe, or by a pin 16a on the throttle control 16, the pin coming into contact with the lever 15 only when the throttle is half open. In the case of fuel injection, the stroke of the fuel pump or the timing of the delivery valve may be adjusted. Specification 290,097, [Class 7 (iv), Internal-combustion engines, Igniting in], is referred to.
Patent GB-653369-A (GB)
Title: Improvements in or relating to shuttle blocks and shuttles made therefrom
IPC: D03J5/00
Filed: 1948-11-26
Abstract: 653,369. Composite wood. HORDERNRICHMOND. Ltd., and SIMMONS, R. S. A. Nov. 26, 1948, No. 30755. [Class 145(ii)] [Also in Group IX] A block for making a loom shuttle comprises sides 1. 2 and ends 3, 4, with or without a bottom 5. The sides are, and the other pieces may be, of laminated wood, which may be densified. The laminations of the ends may lie transversely of the block or may' be horizontal ; the grain in adjacent layers of the ends may be in the same direction or at right angles.
Patent GB-365523-A (GB)
Title: Improvements in or relating to measuring instruments for signalling at predeterminedvalues
IPC: G01R13/00
Filed: 1930-10-14
Abstract: 365,523. Indicating-apparatus. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Oct. 14, 1930, No. 30756. Convention date, Dec. 31, 1929. [Class 106 (iv).] Indicating particular readings.-The pointer of a measuring instrument adapted to operate a signalling device on reaching a predetermined reading, carries a small non-magnetic plate which at the required reading is influenced by a magnetic system comprising a normal alternating field and a secondary phase displaced Ferraris field providing the additional torque to actuate a contact-making device. A non-magnetic plate P carried by the pointer Z of a measuring instrument M comes first under the influence of the normal alternating magnetic field produced across the poles by the winding W, the displacement of the pointer not being affected. As the predetermined reading is approached, however, the plate P enters the Ferraris phase displaced field, produced by the short-circuited windings C, D, which, interacting with the eddy currents produced in the plate P by the normal field provides the additional energy for the tip of the pointer Z to rock a lever H, whereupon the mercury tube Q normally held up by the projection K tilts downwards to close the signalling circuit. In a practical form, Fig. 2, the plate P is carried by an arm G of the pointer Z, and the magnet E is adjustable by means of a handle L<1> to vary the predetermined reading, indicated by a hand B on a scale A, at which the signal is to be operated. If the pointer Z is to function after the lever H has been actuated, a switch may be simultaneously opened to break the circuit of the winding W.