baber/WOPTO huggingface dataset:
Patent GB-794147-A (GB)
Title: Improvements in or relating to control valve means for hydraulic systems
IPC: F15B9/12
Filed: 1956-03-21
Abstract: 794,147. Fluid-pressure servomotor-control systems. INTERNATIONAL HARVESTER CO. March 21, 1956 [March 22, 1955], No. 8828/56. Class 135. Control valve means for a reversible hydraulic motor such as a piston 20 and cylinder 14 comprises a main valve plunger 37 with control lands 38 coacting with passages 34 leading through spring-loaded check valves 51 to passages 27, 29 communicating with opposite ends of the cylinder 14, spring-loaded piston means 44 being operative to establish a lowpressure by-pass condition when the main valve plunger is in neutral position and to shut off the by-pass passage and open one of the check valves when the main valve plunger 37 is moved to an operative position. With the valve plunger 37 in neutral position as shown, the lands 38 obstruct the ports 34 and liquid under pressure from a pump 12 and safety valve 18 passes between the lands 38 to a passage 43 where it urges the two pistons 44 apart to escape through a conduit 46 and pipe 36 leading to the tank 17. Passages 48 are also connected to exhaust through the pipe 36, the left-hand passage being so connected through a port 41<SP>1</SP> and axial bore in the plunger 37. The piston 20 is hydraulically locked by the check valves 51. When the plunger 37 is displaced from its neutral position it connects one of the ports 34 with the pressure supply and the other with exhaust and also connects one of the passages 48 with the pressure supply so that the corresponding piston 44 is moved to close the by-pass 46 and engage the other piston to open the check valve 52 in that passage leading to the servocylinder 14 which is connected by the plunger 37 to exhaust. The other check valve is opened by the pressure of liquid admitted by the plunger 37 and the servo piston 20 consequently moves an amount corresponding to the displacement of the plunger 37, the plunger being returned to neutral position after this movement has been completed by a connection through a floating lever 16 and rod 61 with the servo piston. The piston means 44 may be replaced by a unitary piston with spaced lands controlling the by-pass passage, but in this case a check valve or restriction would be required in the by-pass system to establish a low-pressure by-pass condition adequate to displace the piston means when the plunger 37 is displaced.
Patent GB-1315799-A (GB)
Title: Bridge-laying vehicle
IPC: E01D15/127
Filed: 1972-02-25
Abstract: 1315799 Bridge-laying vehicles DR ING h c F PORSCHE KG 25 Feb 1972 [11 March 1971] 8841/72 Headings B7B and B7H A bridge-laying vehicle has a jib 3 which is pivotable at 4 by means of a ram 5 and which carries two pairs 8, 9 of rollers which are received in the guide rails 15 at each side of each of two bridge elements 2a, 2b. The elements 2a, 2b are placed one above the other for transit and are laid down and taken up by means of a driven gear wheel 16 and transmission 10, mounted on the jib 3, acting on teeth 51 positioned adjacent the rails 15 on the bridge elements 2a, 2b. Gear-wheel 16 is mounted on a driven shaft 24 and is urged towards engagement with teeth 51 by a spring 29 under the control of a twoarmed lever 33 which is journalled to the jib 3 at 37. One arm 34 of the lever 33 is bifurcated into branches 39, 40 which are able to exert an axial force on the gear-wheel 16 while the other arm 45 has an extension 47 and a follower 50 which follows the ramp 31 formed on bridge element 2b at the end of the rack of teeth 51, which movement is transmitted to arm 34 and thence to gear-wheel 16 so that it is held away from the bridge element 2b until the follower 50 passes over the end of the ramp 31 at which moment the gear-wheel 16 and some of the teeth 51 are in exact alignment and can be brought into engagement by spring 29.
Patent GB-346950-A (GB)
Title: Improvements in or relating to steam stop valves
IPC: F22B37/47
Filed: 1930-03-19
Abstract: 346,950. Stop valves; accessories. SPEARING, K. A., 1, Clements Inn, Strand, London. March 19, 1930, No. 8844. [Class 135.] Locking catches.-An automatic locking device for preventing the opening of a steam stop valve until the steam-pipe has been drained of water comprises a ratchet and pawl or equivalent unidirectional restraining device associated with a thermal arrangement heated from the water drain pipe so that when the drainage valve has been opened and the drain-pipe is free of water and steam is passing the consequent rise of temperature therein releases the catch pawl and allows the main valve to be opened. The copper &c. water drain pipe 2 is adjustably secured at one end 3 in a channel-section frame 1 and is provided with lugs 5, 6 engaging a cranked member 7 pivoted to the frame 1. The crank 7 engages a pivoted bracket 8 carrying an adjustable spring-pressed pawl 9 engaging teeth 10 on a ratchet formed on the operating wheel 11. The pawl device allows the hand-wheel 11 to be operated to close the valve at any time.
Patent GB-537204-A (GB)
Title: A method of and means for adding lead to steel and other ferrous metals
IPC: C21C7/00
Filed: 1940-05-18
Abstract: 537,204. Alloys; foundry ladles. INLAND STEEL CO., and BROADFIELD, W. H. May 18, 1940, No. 8870. Addition to 520,227. [Class 82 (i)] The process described in the parent Specification for adding lead to steel is extended to other ferrous metals such as ingot irons and silicon steels of low carbon content, manganese steels, and nickel-chromium steels, and is also modified in detail in its application to steel and ferrous metals generally. The rate of flow of the lead or its alloy or compound, measured as weight of metal passing in unit time may be about 0.6 per cent. of that of the stream of ferrous metal, and its velocity may be not less than 6 feet per minute. The lead &c. may be passed down a shoot or tube and its rate of flow controlled by adjusting the inclination of the shoot or tube or the size of the hole through which the lead &c. is fed to the shoot etc.; or a stream or shower of lead &c. may be directed into the stream of steel &c. by spraying it by means of air pressure or a centrifugal impeller; or the lead &c. may be fed through an opening in the plug of the ladle from which the steel &c. is flowing. In the form shown in Fig. 1, lead from a hopper 22 the outlet from which is controlled by a shutter 25 passes down an adjustably inclined shoot 14 and impinges against the stream 11 of steel from a ladle 10, a suction hood 13 being provided for extracting fumes ; or lead may be poured into the shoot 14 from a portable hopper having a controlled outlet. The delivery end of the shoot or tube for the lead is spaced away from the stream 11 preferably by not less than one inch. More than one jet of lead may be spaced around the stream 11. In apparatus in which the lead &c. is fed through the plug of the ladle, the plug 52, Fig. 11, may have a conical seating portion 75 associated with a throat 76 of smaller taper, and has an internal metal tube 53 down which the lead may be fed from a shoot 55 mounted similarly to the shoot 14, Fig. 1 ; or the lead may be fed to the top of the tube 53 from a hopper having an outlet controlled by a sliding or lift valve, a seal being provided between the outlet and the top of the tube to prevent the admission of air; the valve may be operated by hand, or automatically by a push rod attached by a spider to the tube 53 so that it will be opened when the plug 52 is opened Entry of the metal into the lower end of the tube 53 is prevented by the sealing of its upper end, or by the provision of a hand or electrically-operated valve at its lower end; or a disc valve 82, Fig. 19, controlled by air pressure from a pipe 79 and by a spring 85, may be opened to admit air pressure to the tube 53 when the metal raises a float 80; or rise of the metal may be made to close an electric circuit whereby the air valve is opened.
Patent GB-681107-A (GB)
Title: Improvements in or relating to battery operated hand torches
Inventor: WHITMAN FRANCIS GEORGE
IPC: F21L4/00
Filed: 1950-04-11
Abstract: 681,107. Battery lamps. HAWK, Ltd. April 11, 1951 [April 11, 1950], No. 8930/50. Class 39(ii) In an electric torch comprising a metal casing 11 with a switch mounted thereon, a contact compression spring 20 which holds a battery contact against the centre contact of a bulb 16 is insulated throughout its length, being bared only at its ends 21 and 25, which make contact with the bottom of the battery and the movable contact 27 of the switch respectively. The bare end 25 of the spring is held by an offset portion of an insulated plate 24 which is secured on the inner wall of the torch casing immediately behind a slot 30 in the latter and in alignment with the end of the resilient contact-making member 27 of a switch that is actuated alternatively by a press-button 28 or a slide 29 in known manner. The insulation upon the spring 20 and its extension 23 may be either in the form of an enamel or like coating, or a conventional sleeving of rubber or other insulation. The contact spring may be in the form of an insulated spring strip with bared ends, for use with cells arranged in an inverted position relative to that shown. The bottom of the casing is closed by spinning its edge over a cap 12, and the upper end is screwthreaded to receive a metal ring 17 into which the lamp cap is screwed. A flared head 13 carrying a reflector 14 and front lens is provided with an inclined slot which receives a fixed pin on the casing to effect longitudinal movement for focussing by rotation of the head, in known manner.
Patent GB-821101-A (GB)
Title: Electric insulators
IPC: H01B17/32
Filed: 1956-03-22
Abstract: 821,101. Insulators. MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES SAINT-GOBAIN, CHAUNY & CIREY S.A., DES. March 22, 1956 [March 22, 1955], No. 8938/56. Class 36. An insulator comprises a core of glass or other mineral fibres arranged substantially parallel to the axis of the core and bonded with synthetic resin which comprises 5-20% of the weight of the core, and an outer insulating body associated with the core so that there is no space between the core and the body. The outer body may be of ceramic or toughened glass, or of glass powder or fibres bonded with a synthetic resin and may be pressed, moulded or stuck to the core, which may first be impregnated with silicones to fill any cavities it might contain.
Patent GB-717438-A (GB)
Title: Improvements in and relating to printers' composing appliances
IPC: B41B11/00
Filed: 1952-04-08
Abstract: 717,438. Printers' composing appliances. MUNCEY, S. O. Jan. 21, 1953 [April 8, 1952], No. 8946/52. Class 100 (3) Gauging apparatus for use in the printing art for enabling an operator to set up a square on the apparatus and thereafter to determine the lay of the print on a sheet, consists of two pairs of gauges, a long and a short pair, each pair comprising a master element and a matching e'ement having adjustable aligning members with parts adapted to be interengaged to enable the members to be united so as to align the members with each other when the members on the master element have been set to the desired positions, the elements then being separated and clamped parallel on the bed of the machine. A master gauge element, Figs. 1 and 2, comprises a bar 1 supported on blocks 12, 14, and a rod 3 supported on fixed pedestals 4, an adjustable pedestal 5 being also provided. Aligning stops 7 are s'idable along the rod 3 and in a channel 2 in the bar 1 and locked by screws 8. An adjustable centre line pedestal 9 works in a slot 10 in the bar 1. A matching gauge element 15, Fig. 4, is similarly formed and the members 5, 7, 9 on the two gauges are formed with male and female components 16, 17, so that they can be fixed together for the members on the matching element to be aligned with those on the master element. The gauges are used for the long sides of a frame, and a simi'ar but shorter pair is provided for the short sides of the forme, without centre line pedestals. The gauges are set up on the bed of a machine.' The aligning stops are set according to the measures required and the matching elements set equivalently, then the gauges are set up as a rectang'e and lengths of thin elastic stretched taut between opposite aligning stops, ends being looped on screws in sockets 23. The bars 1 may be ¥-inch by “-inch with mil ed channel #-inch by #-inch, the rods 3 “-inch in diameter and the stops and adjustable pedestals 1 inch by ¥-inch by “-inch, the fixed pedestals being ¢-inch from the ends of the bars.
Patent GB-1204929-A (GB)
Title: Improvements in or relating to aerials
Inventor: WHYMAN WILLIAM GERALD
IPC: H01Q9/27
Filed: 1968-02-23
Abstract: 1,204,929. Aerials. GENERAL ELECTRIC and ENGLISH ELECTRIC COMPANIES Ltd. 14 April, 1969 [23 Feb., 1968], No. 9031/68. Heading H4A. In a wide-band aerial comprising two flat interleaved spiral elements 1, Fig. 1, connections to the outer ends of said elements are made by two flat conductors 4, the elements and the conductors being substantially coplanar. As described, the conductors 4 extend radially to a semicircular conductor 3 which provides a balun and which is concentric with the elements 1. Coupled sections 6 are provided, each being in the form of an end-connected pair of closely spaced parallel lengths of conductor extending radially inwards from the conductor 3, and a terminal 5. The elements and the conductors are formed by a printed circuit technique on one side of a disc 2 of dielectric material, the other side of which has a conductive coating except for a circular area in register with the elements 1. A second similar disc of dielectric material, which is secured to the disc 2 over the elements and conductors, is provided on its outward facing side only with a conductive coating, except for a circular area in register with the elements 1. The inner conductor of a coaxial connector is connected to the terminal 5 and the outer conductor thereof is connected to the outer conductive coatings of the dielectric material discs (Fig. 2, not shown). The inner ends of the elements 1 are connected by a resistive impedance, for example a thin coating of absorptive paint. The aerial may be placed over a hollow cylindrical resonant cavity with the area occupied by the spiral elements simulating an end wall, to enforce radiation on one side only of the aerial. In another embodiment the outer ends of the spiral aerial elements are extended by conductors which run tangentially instead of radially, thereby avoiding rightangled bends (Fig. 3, not shown).
Patent GB-559116-A (GB)
Title: Improvements in or relating to electrical meters for measuring horse-power transmitted through a shaft
IPC: G01L3/10
Filed: 1942-06-30
Abstract: 559,116. Transmission dynamometers. SAY, A. W., MORRISON, P. H., JARVIS, P. J., and PLESSEY, CO., Ltd. June 30, 1942, No. 9033. [Class 40 (i)] An instrument for measuring the power transmitted by a shaft 10, 11 comprises a resilient coupling 12 joining two portions of the shaft and two identical A.C. generators, of which the permanent magnet rotors 13, 14 are driven respectively from the two shaft portions and the output circuits are connected in opposition through a potentiometer resistance 20, between one end 22 and the slider 21 of which is connected a voltmeter 23 calibrated in terms of power. The rotors 13, 14 may be coupled to the shaft sections 10, 11 through gearing instead of being mounted directly thereon.
Patent GB-804849-A (GB)
Title: Improvements in or relating to accelerometers and to control systems employing accelerometers
Inventor: SEDGFIELD HUGH BROUGHAM
IPC: G01P15/11
Filed: 1950-04-12
Abstract: 804,849. Electric measuring systems. SPERRY GYROSCOPE CO., Ltd. April 5, 1951 [April 12, 1950], No. 9055/50. Drawings to Specification. Class 40 (1). In an accelerometer of the type described in Specification 804,847, the movable member may be given a displacement which corresponds to the product of two variables. The movable member carries an additional coil in the air gap of an electromagnet; the currents in the coil and the magnet field coil correspond to the two variables and the resultant thrust on the member is proportional to their product.
Patent GB-570678-A (GB)
Title: Improvements in the construction of concrete walls, beams and the like
IPC: E04G11/12
Filed: 1943-05-24
Abstract: 570,678. Casting concrete walls &c. in situ. HAWES, A. H. May 24, 1943, Nos. 9057/44 and 9230/44. Divided out of 570,661. Drawings to Specification. [Class 20 (ii)] Claims are made to the means described in Specification 570,661 for securing shuttering to pole scaffolding.
Patent GB-836583-A (GB)
Title: Improvements in or relating to automatic signalling systems
IPC: H04Q3/00
Filed: 1956-03-23
Abstract: 836,583. Automatic exchange systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 23, 1956 [March 28, 1955], No. 9135/56. Class 40 (4). Each subscriber's line at an exchange is associated with an individual magnetic core M which is normally magnetized to saturation by a biasing direct current passing through a winding L2 and a resistor R4, the core in addition being subjected to further magnetization in the same sense by periodic current pulses from a pulse generator IG. When a call is initiated by looping the line wires S1, S2, demagnetizing current which overcomes the bias and reverses the saturated state of the core is applied to a winding L1 over resistors R1, R2 and R3. The periodic pulses from IG are then able to induce voltages by transformer action in a winding L3 in such a direction as to fire a gas-filled tube B in a common call detector OD. Relay OR responds and starts a line finder OZ which shortcircuits winding L1 over the test wiper c when the calling line is found. The core restores to its original saturated state and induction of pulses in winding L3 terminates. In a modification the core is biased to saturation by a permanent magnet. It is stated that the windings L2 and L3 may be connected in series with corresponding windings of all the magnetic cores of a group of lines.
Patent GB-572325-A (GB)
Title: Improvements in or relating to lubricating systems for marine gearing
IPC: F16N19/00
Filed: 1944-05-12
Abstract: 572,325. Lubricating gearing. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 12, 1944, No. 9152. Convention date, May 26, 1943. [Class 80 (i)] [Also in Group XXXIV] The lubricant well 18 of a high-speed reduction gearing 11, 12 for marine use is formed with a vertical partition 20 running fore and aft of the ship to prevent the movements of the ship causing the oil to contact with the gearwheels. A horizontal partition 24 preferably having downwardlyprojecting flanges 25 is also provided above the partition 20 to lessen the flow of lubricant from one side of the partition. to the other when the ship rolls or lists. The level on the two sides of the partition is equalized when the ship is on an even keel by an open-ended tube 27 passing through the partition 20 and preferably secured at its ends to the walls of the well 18. Lubricant may be supplied to the teeth of the gearing through a nozzle 16.
Patent GB-164892-A (GB)
Title: A process of and apparatus for trueing wheel rims
IPC: B21D53/30
Filed: 1920-03-30
Abstract: 164,892. Goodyear, C. E., and Stanley, E. March 30, 1920. Hoops and rings.-Wheel rims a<1>, such as for rubber tyres are trued or formed, or may be firmly attached to the sheaves a and sized, by rollers g, g, acting internally and rollers b, b acting externally on the rim, and adjustable transversely to the plane of the wheel. The outer rolls b are preferably mounted on pivoted levers c, c adjustable by a right and left handed - screw e to regulate the outside dimensions of the finished rim, and to press the parts a, a<1> firmly together. The rolls g, mounted eccentrically to the axis of the spindle j on the end of the spindle, are adjusted by turning the worm l.
Patent GB-969166-A (GB)
Title: Comparing circuit for digital numbers
IPC: G06F7/02
Filed: 1963-03-08
Abstract: 969,166. Comparing digital data. NIHON GENSHIRYOKU KENKYU SHO. March 8,1963 [March 27,1962], No. 9282/63. Heading G4M. A comparator circuit for multi-digit binary numbers X and Y comprises for each binary order n, a digit comparator 10 and a switching circuit 30 comprising three transistors 22, 23, 24. For the n'th order circuit shown (assumed to be the highest order), the digit comparator, which comprises resistors and diodes (Fig. 2, not shown) produces respective outputs -, +, +; +, -, +; +, +, - on terminals 13, 14,15 according as X n  <Y n , X n  = Y n  or X n  > Yn. Thus if X n  < Y n  i.e. X <Y,transistor 23 conducts to produce an output across a resistor 29. If Xn > Y n , i.e. X > Y, transistor 24 conducts to produce an output across resistor 28. If X n = Y n , the transistor 22 conducts to produce an output at terminal 19 which is connected to terminal 16 of the next lower order whose switching circuit 30 is rendered effective to produce an indicative output of X n-1  differs from Y n-1 . If all the digits of the numbers X and Y are equal, a final output indicative of equality is produced across a resistor 27.
Patent GB-552286-A (GB)
Title: Improvements in treatment of fibres or fibrous materials containing keratin and compositions therefor
IPC: A61Q5/04
Filed: 1941-07-24
Abstract: 552,286. Hair waving &c. CHAMBERLAIN, N. H. July 24, 1941, No. 9368. Divided out of 552,285. [Class 15 (ii)] [Also in Group VIII] In a process for applying a permanent form or set to, or removing stress from, material made of keratin, the material is treated with an acid solution of a reducing agent, preferably a bisulphite or metabisulphite with or without alcohol, and then treated with a non-irritant alkaline solution containing an organic base or a non-irritant alkaline buffered solution. A suitable solution of an organic base consists of commercial triethanolamine and water to which may be added the sodium salt of isopropyl naphthalene sulphonic acid or other wetting agent, the preferred pH being 9 to 13. The general treatment of the hair in hair waving is as described in Specification 552,285. A suitable buffered solution with a pH of about 11 may be made by mixing a solution of disodium hydrogen phosphate with a solution of sodium hydroxide. Specification 453,700 also is referred to.
Patent GB-500183-A (GB)
Title: Improvements in or relating to the fly front closures of trousers
IPC: A41D1/06
Filed: 1937-05-03
Abstract: 500,183. Trousers fly parts. JOSET, A. May 3, 1937, No. 9392. [Class 141] In a trousers fly front closure of the sliding- clasp fastener type, one stringer 2 of the fastener is secured, in a straight line, between the plies 1, 4 of an underflap member. This member has an outer edge conforming in curved outline to the edge of the underfront 8 of the trousers, to which edge the inner edge 5 of the member is secured by a seam 7. The other stringer 3 is secured, in a straight line, near the edge 6 of the outer front 10 of the trousers. The lower end of the underflap member is not secured to the trousers, so as to provide a ventilating opening. Specifications 301,613, [Class 141], and 414,538 are referred to.