baber/WOPTO huggingface dataset:
Patent GB-835416-A (GB)
Title: Method of preparing alkyl and unsymmetrical dialkyl hydrazines
Inventor: RANDOLPH CARL LOWELL
Filed: 1956-06-21
Abstract: Alkyl and unsymmetrical dialkyl hydrazines having the formula RR1N-NH2 are prepared by reacting chloramine in aqueous alkaline solution with an alkylamine or dialkylamine having the formula RR1NH, where R is an alkyl radical and R1 is hydrogen or an alkyl radical. The chloramine is preferably generated in situ and the reaction is preferably conducted at reduced temperatures in the presence of gelatin.
Patent GB-316407-A (GB)
Title: Means for measuring or comparing mechanical impedances
IPC: G01H15/00
Filed: 1928-07-03
Abstract: 316,407. Whitaker, A., Manifold, M. B., and Gramophone Co., Ltd. July 3, 1928. Vibrations, indicating, recording, and registering. - Apparatus for measuring or comparing mechanical impedances comprises two mechanisms adapted to be coupled, to the impedance to be measured, one of the mechanisms being adapted to give a measure of the instantaneous force applied to said impedance at its input point and the other being adapted to give a measure of the instantaneous velocity at said input point. A coil 1 mounted in the gap of a permanent magnet or an electromagnet 2, is excited by alternating curent from a source 3. The coil is fixed to the edge of a paper cone 4 attached at the apex to a light bar 5 connected by two rods 6 with a bar 7 of insulating material. A long thin bar 8 of a quartz parallel to the rods 6 is fastened at its middle in a hole in the bar 7. A known mass 9 is attached to the end of the quartz bar between the rods 6, the impedance to be measured being connected by a clamp 10 to the other end of the bar 8. Two opposite faces of the bar 8, on both sides of the bar 7, are coated with thin metal foil 11 from which flexible leads 12 are taken through thermionic amplifiers 18, 19 to electric measuring means. The quartz is so cut that the longitudinal stresses produce differences of potential between opposite electrodes. The system is constrained to vibrate in a straight line parallel to the axis of the coil 1 by two sets of three symmetrically arranged wires 14, 16. When the system is vibrated, the stress in the top half of the quartz bar depends solely on the known mass, and the strese in the lower half on the unknown impedance. The measuring device may comprise a kathode ray oscillograph 20 in which two pairs of plates 21, 22 to which the leads from the amplifiers are connected are adapted to deflect the kathode rays in two directions at right angles. In another form, the known mass 9 is fastened to the middle of the quartz bar while the unknown impedance is attached at the other end of the bar from that connected to the vibrating means. The tin foil is arranged on the bar at opposite sides of the mass 9. The photo-electric effect may be used instad of the piezo-electric and the light variations recorded on a moving film. The change in the magnetic properties of a body under stress may be used or the displacement or velocity of the input to either of the impedances may be obtained by electro-dynamic or electro-magnetic means or by direct optical means, or electrical means.
Patent GB-1321927-A (GB)
Title: Open end spinning frame
IPC: D01H4/44
Filed: 1971-06-08
Abstract: 1321927 Open end spinning frame SOC ALSACIENNE DE CONSTRUCTIONS MECANIQUES DE MULHOUSE 8 June 1971 [17 June 1970] 19330/71 Heading DID In an open end spinning frame thread 42 emerging from each of the spindles 11 passes through a thread guiding element 72 in a thread guide rod 71. On stopping of the frame, either intentionally or in the event of a power failure, the rod 71 is moved to the left by a pneumatic cylinder 91 via rack 94 and gears 95, 97 to create a reserve loop of yarn. The rod then moves back slightly under the action of spring 101 to relieve yarn tension. Movement of rod 71 is activated by a tachometric device 152 mounted on the main motor 24 when the spindle speed drops below a certain value. On restarting the frame when the spindles again reach said speed the tachometric device engages the fibre feed by electromagnetic clutch 32 and turns rod 71 to release the yarn ends which are sucked into spindles 11 and piece up. The rod 71 then returns to its operating position and is oscilated by motor 86 to distribute wear on the delivery rollers 43, 44. Rotation of rod 71 is actuated by pneumatic ram 111 via rack 114 and pinion 115. Suction is provided at the spindles 11 by a pump 64 and a manometric switch Ml only allows the main motor 24 to operate while suction is applied. A detailed description of the interrelationship of the switches, relays and valves of the control circuit is given in the specification together with details of the mechanical component parts of the frame.
Patent GB-731125-A (GB)
Title: Means for guiding and loading the top rolls of drawing mechanisms of textile machinery
IPC: D01H5/50
Filed: 1950-08-03
Abstract: 731,125. Roller guiding and loading means. S. K. F. KUGELLAGERFABRIKEN GES. Aug. 3, 1950 [Sept. 23, 1949], No. 19377/50. Class 120(2). Guiding and loading means for the top rolls of drawing mechanisms has pairs of top rolls held at their centres and loading means disposed above the plane of the drawing zone, the guiding means extending completely across the drawing zone and having secured thereto arms for guiding and loading the pairs of top rolls in such a manner that they are adapted to swing perpendicularly to the plane of the drawing zone under the influence of resilient loading means provided between the arms and the guiding means. The loading means may be displaced with the rolls when the distances between rolls are changed so that the amount of load on each pair of top rolls is not varied. As shown the guiding and loading means 1 is of inverted U cross section and in the operating position is latched by the pawl 3 to a bar 2. A set of guiding and loading arms 4, each associated with a pair of top rolls I, II, III, is so connected to the holding unit 1 that the arms can move both in the plane of the drawing zone and in a plane perpendicular thereto about ball joints 5. The joints 5 are mounted in slides 6 which in turn can be displaced within the plane of the drawing zone along the guiding means 1 and which can be secured in any position by means of screws 8. Each guide arm 4 is loaded by a spring 7. In another embodiment the bar 2 is fixed to a slide carrying the roll I instead of to the underframe 9 of the machine. In other embodiments the loading springs may be arranged longitudinally of the holding unit and hydraulic means are provided for keeping the holding unit 1 in its operative position.
Patent GB-935548-A (GB)
Title: Key operated chuck
IPC: B23B31/12
Filed: 1960-01-14
Abstract: 935,548. Chucks. JACOBS MANUFACTURING CO. Jan. 14, 1960 [Feb. 24, 1959], No. 19455/61. Divided out of 935,547. Class 83 (3). [Also in Group XXIII] A chuck has an operating sleeve 21 rotatable by a key having a pilot for seating in a recess 61 in the chuck, the diameter of the pilot being at least 75% of the root diameter of the bevel pinion of the key. The body of the chuck is of mild steel and the key is hardened. Three keyholes may be provided in the body. Specifications 935,549 and 935,550 also are referred to.
Patent GB-666977-A (GB)
Title: Improvements in or relating to signalling devices for use on road vehicles
IPC: B62J6/00
Filed: 1948-07-21
Abstract: 666,977. Press-button switches. RICHARDSON, P. H. Jan. 11, 1949. [July 21, 1948] No. 19524/48. Class 38 (v). [Also in Group XXXVIII] A selective. switching means for operation of a combined rear light and signalling device for bicycles (see Group XXXVIII) comprises three press-buttons 52 arranged to depress spring blade contacts within the case 4 and thereby complete the circuits of three respective lamps. A leaf spring 58 fitted with a handle 59 is pivoted on the case so that it may be positioned to retain the central press-button in the depressed condition and thereby provide a permanent rear light when desired.
Patent GB-1039948-A (GB)
Title: Improvements in or relating to electronic servo apparatus for following the contour of line patterns
IPC: G09G1/08
Filed: 1965-05-10
Abstract: 1,039,948. Automatic character readers. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 10, 1965 [June 24, 1964], No. 19554/65. Addition to 996,509. Heading G4R. Apparatus for causing a flying spot scanner to follow the contour of a line pattern comprises a first scan control circuit which causes the spot to trace a circle of larger diameter than the thickness of the line 51, Fig. 3 (not shown), a second scan control circuit which is responsive to the interception at B of one boundary of the line by the flying spot to reduce the diameter of the circle for a chosen interval of time D-E so that the spot tracks along the upper side of the line in a convoluted path having an envelope of greater width than the line.
Patent GB-648968-A (GB)
Title: Improvements in or relating to pipe connections
IPC: B60T11/18
Filed: 1947-07-22
Abstract: 648,968. Pipe couplings. AVERY, Ltd., W. & T. July 22, 1947, No. 19561. Convention date, July 23, 1946. [Class 99(i)] Means for connecting a pipe 2 to a chamber 4 comprises a coupling member 1 having a lateral opening 15 controlled by a spring-loaded valve 17 and registering with an opening 5 in the chamber, a bellows member 21 secured to the valve and surrounding the valve stem and a screw 33 threaded in a bridge-piece 3 on the chamber and adapted to bear on the member 1. A plug 37 slidable in the hollow screw has a tapped hole adapted to engage the screwed stem 18 of the valve, and a flanged operating cap 38 which prevents access to the wrench-engaging portion of the screw 33 when the valve is open.
Patent GB-1432245-A (GB)
Title: Method of pulping wood
IPC: D21C3/02
Filed: 1973-04-25
Abstract: 1432245 Pulping wood WESTVACO CORP 25 April 1973 [1 May 1972] 19623/73 Heading D2W A process for making wood pulp comprises cooking comminuted wood with an aqueous solution containing from 50 to 150 g/1 total alkali, measured as sodium oxide, wherein 50-100% by wt. of the total alkali, measured as sodium oxide, is sodium carbonate, the solution being added in a weight ratio wherein the total of titratable sodium, expressed as sodium oxide, is from 4-10% by wt. of the oven dried wood weight but not more than 2.4% by wt. on an oven dried wood basis is sodium sulfide, measured as sodium sulfide, under pressure for a time sufficient to solubilise not more than 30% by wt. of the organic compounds in the wood, and mechanically defibrating the cooked comminuted wood. The spent liquors from the process may be combined with the spent liquors from a kraft pulping process, the combined liquors being treated in a conventional manner for recovery of cooking chemicals for reuse.
Patent GB-1069830-A (GB)
Title: Plastic powders for use in heat fusion processes
IPC: B05D1/24
Filed: 1966-05-04
Abstract: Plastic powders for use in surface coating by heat fusion are formed with identical shape and uniform size of 0.1-0.3 mm. grain size, preferably the shape is cylindrical having a diameter to length ratio of 1:1-4.  The powders are formed by extruding the composition, stretching if necessary to the desired diameter and then cutting to the required length. The example refers to extruding, stretching and cutting a polyvinyl chloride composition.  The powders are used for coating unspecified materials by fluidized bed, pouring, flame spraying or electrostatic spraying processes.
Patent GB-1038273-A (GB)
Title: Monochromator
IPC: G01J3/12
Filed: 1965-05-10
Abstract: 1,038,273. Monochromator. CARL ZEISSSTIFTUNG [trading as ZEISS CARL]. May 10, 1965 [May 12,1964], No. 19711/65. Heading G2J. A monochromator comprises in an autocollimation arrangement, an entrance/exit slit defined by jaws 5, 6, a mirror 7 and a prism 2 with a mirrored surface 3, the prism and the jaw 6 being fixedly mounted on a turntable 1 with an axis of rotation 4 which extends perpendicularly through the optical axis of the beam of light which passes through the slit, and is parallel to the slit. On a change of wave-length which is effected by rotating the prism 2 on turntable 1, jaw 6 is also rotated altering the width of the slit, which enables the spectral band width of the transmitted radiation to be maintained approximately constant. The initial slit width may be altered by adjusting jaw 5.
Patent GB-249734-A (GB)
Title: Improvements in or relating to mountings for abrasive wheels
IPC: B24D5/04
Filed: 1925-08-06
Abstract: 249,734. Perks, G. W., and Gammeter, J. R. Aug. 6, 1925. Securing abrading- wheels on shafts.-An abrading-wheel 11 is mounted on the shaft 10 by means of two plates 14 clamped between a collar 12 and a nut 15. Washers 16, comprising a stiff backing plate 17 having vulcanized thereon a layer 18 of rubber, are interposed between the plates and the wheel, with the rubber in contact with the wheel. The thickness of the rubber corresponds to the size of the abrasive grains in the wheel, so that the projecting points on the faces of the wheel reach the washers 17. The plates 14 may carry the rubber layer, the washers being omitted.
Patent GB-702376-A (GB)
Title: Methods and devices for the construction of pre-stressed concrete structures and structural members
IPC: E04C5/10
Filed: 1952-08-06
Abstract: 702,376. Reinforced concrete. PRELOAD CO., Inc. Aug. 6, 1952, No. 19837/52. Class 20 (4) A method of prestressing a concrete structure comprises making the structure in at least two sections, 1, 2, encircling at least a part of each of the two sections with a flexible high tensile strength reinforcing loop 3 and forcing the sections apart to tension the loop. The sections are forced apart by jacks 23 and the gap is filled with grout. Special bearing surfaces are provided around the turns of the loops where they bear heaviest on the concrete surfaces.
Patent GB-386244-A (GB)
Title: Improvements in or relating to flexible nozzles for water taps
IPC: F16L37/48
Filed: 1932-07-13
Abstract: 386,244. Pipe couplings. KALTENBACHER, A., Bahnhofstrasse, Zug, Switzerland. July 13,1932, No. 19846. [Class 99 (i).] A flexible nozzle is secured to a water tap 13 by a socket 3 containing concentric rubber rings 11 of different thicknesses, one or more of which may be removed to accommodate taps of different diameters. The nozzle includes a flexible metal, rubber-lined tube 2 joined to the socket by a slidable ring 8 and to the outlet 5 by indenting at 10 a sleeve 9 secured to the outlet.
Patent GB-827357-A (GB)
Title: Halonitrostilbenes
Inventor: ROBERTSON DALE NORMAN
IPC: C07C205/09
Filed: 1958-06-20
Abstract: The invention comprises compounds of the formula <FORM:0827357/IV (b)/1> where R and R1 are aryl or haloaryl radicals of the benzene series, at least one being haloaryl.  "Halo" includes fluoro, chloro, bromo, and iodo.  The aryl radicals may carry substituents such as C1-4 alkyl, C1-4 alkoxy, nitro, phenyl, C2-5 carbalkoxy, C3-8 carbalkoxyalkoxy or methylene dioxy.  The compounds may be prepared by reacting a Schiff's base R-CH= N-R11, where R11 is C3-6 alkyl, with a nitromethane R1CH2NO2, e.g. at 20-40 DEG  C. in a substantially anhydrous lower alkanoic acid.  The Schiff's bases may be prepared by condensing an aldehyde RCHO with an amine R11NH2. The nitromethane reactants may be prepared by reacting R1CH2Br with NaNO2 in a solvent at - 20 DEG  to - 15 DEG  C. for several hours. Examples are given.ALSO:Compounds suitable for the control of bacteria and fungi have the formula <FORM:0827357/VI/1> where R and R1 are aryl or haloaryl radicals of the benzene series, at least one being haloaryl.  "Halo" includes fluoro, chloro, bromo and iodo.  The aryl radicals may carry substituents such as C1-4 alkyl, C1-4 alkoxy, nitro, phenyl, C2-5 carbalkoxy, C3-8 carbalkoxyalkoxy, or methylene dioxy.  The compounds may be used in aqueous dispersions, or in germicidal soap compositions.
Patent GB-533290-A (GB)
Title: Improvements in or relating to sliver-roll-forming machines
IPC: D01G15/62
Filed: 1939-07-08
Abstract: 533,290. Sliver-balling apparatus. FRASER & SONS, Ltd., D., and FRASER, G. S. July 8, 1939, No. 19951. [Class 120 (i)] A machine for forming balls or rolls of sliver has a pair of lower driven rollers and an upper driven roller mounted on a movable carrier and pressing on the roll which is wound around a central movable arbor, means incorporating devices carried by the carrier being provided for arresting the rotation of the upper roller and causing the ejection of a completed roll from the machine ; the arbor may comprise a pair of complementary sections each of which is rotated through a friction clutch and the upper roller may be driven through a clutch which incorporates a braking device which arrests the rotation of the roller when the clutch is disengaged. As shown, the two lower roll-supporting rollers 2, 3, are driven by gearing from the delivery rollers 7 of a drawing frame, the gearing also rotating a pair of vertical shafts 21 geared through spiral gears and clutches to the two arbor sections 5 journalled in a carrier 17 slidable vertically on guides 18 ; one of the shafts 21 drives the upper roller 1, which is journalled in a carriage 27 also slidable on the guides 18, through a spring-loaded dog clutch and spiral gearing, the axially movable clutch element being associated with a movable non-rotary braking sleeve 31. The arbor sections 5 are carried by axially-movable hollow shafts which are connected to levers 26 pivoted in the carriage 17, and at the start of the winding operation the carriages are at their lowest positions with the levers 26 engaging fixed stops 32 to force the arbor sections into operative position, engaging the sliver stretched across the rollers 2, 3 and breaking it as the full roll 4 is ejected from the machine. As the roll is wound on the rotating arbor sections, the carriages rise on the guides 18 until the roll attains its full diameter when one arm 33 of a weighted trip lever 34 pivoted in the carriage 17 engages a fixed stop 36 and a stud 37 on the lever depresses the arm 38 of a lever 39 also pivoted in the carriage; the arm 38 then depresses the braking sleeve 31 into engagement with the gear 29 to arrest the rotation of the roller 1, and pawls 40 on the bifurcated arm of the lever 39 engage and lift rack 41 connected to levers 42 pivoted in the carriage 17, the levers 42 then engaging the levers 26 to withdraw the arbor sections 5 from the roll, which is ejected from the machine by the action of the rotating rollers 2, 3. The carriages drop to the starting position as the roll is ejected and as the levers 26 engage the stops 32 the parts are restored to their original positions.
Patent GB-852763-A (GB)
Title: Improvements in and relating to contents gauges
IPC: G01F23/26
Filed: 1958-06-23
Abstract: 852,763. Determining physical dimensions by electric tests. CLAUDIUS PETERS A.G. June 23, 1958 [Sept. 21, 1957; March 21, 1958], No. 20081/58. Class 37 The volume of the contents of a container is determined by a contents gauge comprising a constant frequency oscillator which is coupled to a measuring circuit including a resonant circuit having a probe in the container so that a change in the quantity of the contents causes a change in the characteristics of the oscillatory circuit and thus in an indicator which is coupled to the circuit. The contents gauge shown comprises an oscillation generator I coupled by a screened single core cable Le to a measuring circuit II and an indicating circuit II. H.F. oscillations are generated by the valve Ro1 connected in a form of Hartley circuit the output of which is fed via feeder Le to a coil L3 which is loosely coupled to an oscillatory circuit L4, C11 of which a probe M forms a part. The probe which is situated in the container the contents of which are to be measured forms a capacity with the earthed body of the container. When the container is empty the resonant circuit L4, C11. is tuned to the same frequency as that of the H.F. oscillator I. The output from the resonant circuit is rectified by rectifier G1 and filtered by circuits R8, C10 and R7, C9 and the resulting D.C. voltage is fed via the cable Le to a D.C. amplifier stage Ro2 of an indicator II. The milliammeter A in the indicator is calibrated to read directly the contents of the container. The oscillatory circuit L4, C11 has a low impedance relative to that of the measuring circuit which includes the measuring probe M, the stored material and the container so that the influence of the conductivity of the stored material which varies with its moisture content is negligible. Since the probe M is coupled across only a part of the coil L4 of the oscillatory circuit optimum adaption of the stored material to the shape and size of the container may be obtained. The oscillatory circuit is temperature compensated by maintaining the components of the constant temperature by means of a thermostat.
Patent GB-1132293-A (GB)
Title: Joint assemblies, method for the assembly thereof, and tool for performing such assembly
Inventor: HERBENAR EDWARD JOHN
IPC: F16C11/06
Filed: 1967-05-01
Abstract: 1,132,293. Making ball and socket joints; jointing by rolling; spinning. TRW Inc. 1 May, 1967, No. 20090/67. Headings B3A, B3J and B3M. A ball and socket joint 61 is preloaded against the bearing surface 67 by a plunger 24 in a swedging tool and the periphery of the socket housing is thereafter spin swedged to grip a retaining washer 76 by co-operating swedging roller 36. The swedging tool has a threaded stem 21 which is secured to the chuck 22 of a drill and has three axes for the swedging rollers inclined to the axis of rotation of the tool. The plunger 24 is slidably mounted in the bore of the tool and it is reciprocated by hydraulic or pneumatic means. The lower end of the ram is conical 24a to engage the retainer washer 76. The axis of the rollers 36 is preferably inclined at 45‹ to the axis of the tool. Three studs 33 provide axes for the rollers which are urged away from the tool by Belleville washers, Fig. 3 (not shown). The rollers are shaped so as to swedge the periphery of the housing 62 to grip the washer 76 firstly after the ball has been compressed into the housing by the plunger 24 and thereafter to swedge the housing over the edge of the washer, Fig. 8 (not shown). The ball and socket joint is assembled with the plastics bearing surface 67, e.g. nylon, polyethylene, polyurethane, spaced slightly from the base of the housing, the ball 72 urged into the bearing surface and the washer 76 placed on the bearing surface, Fig. 5 (not shown). The plunger compresses the assembly and the tool swedges the edges of the housing to maintain the preloading. The rollers 36 have a rib 55 which grooves the housing so that a rubber cover (80), Fig. 4 (not shown), may be placed over the ball and socket. In an alternative embodiment the tool is modified to spin swedge closure plates into large open ends of open ended joint housings, Figs. 9-11 (not shown).
Patent GB-1099480-A (GB)
Title: Deck and truss for buildings
IPC: E04B7/00
Filed: 1965-05-13
Abstract: 1,099,480. Roof unit. INLAND STEEL PRODUCTS CO. May 13, 1965 [June 29, 1964], No. 20178/65. Heading E1W. A deck unit comprises at least one truss 31 pivotally connected at 41 to a deck portion 36 for rotation about an axis parallel to the plane of the deck portion between an erected position (as shown) and a folded position preferably parallel with the deck portion. The deck portion 36 is flexible in the longitudinal direction of the truss 31 and the truss is longitudinally movable relative to the deck portion 36 at one or more of the points 41 to enable a required curvature to be set when the unit is erected. Two alternative constructions at the pivot points 41 are disclosed, in each of which the relative longitudinal position of the truss 31 in relation to the deck portion 36 is predetermined for a required curvature of the unit when erected. A second deck portion 35 may be hinged at 46 to the deck portion 36, and trusses 31 may be provided along each longitudinal edge of the deck portion 36.