baber/WOPTO huggingface dataset:
Patent GB-1120393-A (GB)
Title: Improvements in or relating to radiation detectors
Inventor: SAUNDERS PATRICK WILLIAM
IPC: G01T1/164
Filed: 1965-05-06
Abstract: 1,120,393. Radiation detectors. E. K. COLE Ltd. May 6, 1966 [May 6, 1965], No. 19075/65. Heading G1A. A radiation detector arrangement comprises a scintillator made up of an array of discrete sections optically screened from one another, each section being viewed by a preselected number of photodetectors of an array of photo-detectors. When a scintillation occurs in a section, the photodetectors selected to view that section provide output signals whose amplitudes are a function of the position of the scintillation in that section. An array of nine rectangular sections (1-9) Fig. 1 (not shown) e.g. thallium-activated sodium iodide crystal scintillators, have superimposed an array of sixteen photo-multipliers 11-26 Fig. 3 so that four of the latter view each section. The sections are optically separated by thin strips 10 of metal, and this reduces the errors which would occur if an undivided screeen were used, when reproducing an image on the screen of a storage tube corresponding to the position of a scintillation. The outputs of the photo-multipliers are connected to individual amplifiers (11'-26') Fig. 4 (not shown) and resistors (27). The outputs of the amplifiers are connected together in four rows to respective amplifiers (28-31) and four columns, to respective amplifiers (32-35). The outputs (36-43) Fig. 5 (not shown) of these amplifiers are individually connected through pulse lengthening circuits (36'-43') to summation circuits (48-51), and in pairs (e.g. 36 and 37 &c.) to coincidence circuits (44-47). Routing gates (52-55) are also provided in the circuit to divert pulses to a summation circuit which has not received a pulse directly from a pulse lengthening circuit. The summation circuits connect in pairs (48 and 49, 50 and 51) to difference amplifiers (58 and 60) whose outputs (59, 61) control the Y and X deflections of the storage tube. When a scintillation occurs in a particular section 1-9 the output signals from the four photo-multipliers viewing the section will be different depending on the intensity of the scintillation and on how far each is from the scintillation. Since differing energies of radiation incident on the scintillator produce differing scintillation intensities, the images produced on the storage tube are arranged to be for incident radiations of a predetermined energy only, so that errors in the position of the images are avoided. To do this a pulse height analyser (68) Fig. 5 (not shown) receives signals from all the photo-multipliers and controls the difference amplifiers (58, 60) through a pulse lengthening circuit (69), so that only scintillations corresponding to this predetermined radiation level are reproduced. The output of the pulse height analyser (68) is also fed through delay and brightup circuits to initiate writing on the storage tube screen. Any number of sections 1-9 can be used for the scintillator, and in a shape other rectangular e.g. circular.
Patent GB-1522576-A (GB)
Title: 1,4-bis-styryl benzene derivatives and a process for the production thereof
IPC: C11D3/42
Filed: 1977-05-06
Abstract: Novel optical brighteners for organic materials are 1,4-bisstyrylbenzene derivatives of the formula <IMAGE> where R and R1, which are identical or different, are each hydrogen, halogen, lower alkyl or lower alkoxy, A and A1, which are identical or different, are each optionally halogenhydroxyl- or lower alkyl-substituted lower alkylene, and X and X1, which are identical or different, are each a -COOM or -SO3M group, where M is hydrogen, an alkali metal or an alkali earth metal or the cation of an organic ammonium or guanidinium base, and are prepared by reacting a 1,4-xylylenephosphonic ester derivative of the formula <IMAGE> where R2 is lower alkyl or a phenyl group, with a benzaldehyde derivative of the formula <IMAGE> The optical brighteners of the formula I have excellent heat resistance, even in an alkaline medium.
Patent GB-489980-A (GB)
Title: Improvements in or relating to devices for transferring the weft thread in looms
IPC: D03D47/24
Filed: 1937-07-09
Abstract: 489,980. Looms with stationary weft supplies. TEFAG TEXTIL-FINANZ AKT.- GES. July 9, 1937, No. 19103. Convention date, Aug. 1, 1936. [Class 142 (ii)] The thread grippers 6, 7 of a weft transfer device 5 and those 3, 4 of a shuttle &c. 1 have a relative movement transverse to the direction of picking so that the jaws 3, 4 can grip the weft 13 behind the transfer jaws 6, 7 and yet the jaws 6, 7 do not pass between the jaws 3, 4. As shown in Fig. 1, the jaws 6, 7 are opened by a lever 11 and the limb of the jaw 6 is thinned at 8 to allow the jaws 3, 4, when opened by the push rod 9, to pass laterally behind the jaws 6, 7. As shown in Fig. 5, the jaws 21, 22 are within the shuttle &c. 16 and the transferred jaws 29, 30 move about a pivot 27 to place the weft 31 between the jaws 21, 22, the shuttle being notched at 35 to centre the weft 31. The spring jaws 29, 30 are opened by a rod 33. As shown in Fig. 10, one jaw part 48 slides transversely through the transfer or recovery device 45 while the jaw 50 is spring mounted, both being operated by a lever 52. The jaw part 48 is thinned at 56 to allow the opened jaws of the shuttle &c. 39 to pass laterally behind the jaws 50, 51.
Patent GB-1179428-A (GB)
Title: Process for preparing High Solids Concentrated Latex
Inventor: GAUSLAA KJETIL
IPC: C08F36/04
Filed: 1967-04-26
Abstract: 1,179,428. Emulsion polymerization of synthetic rubber monomers. COPOLYMER RUBBER & CHEMICAL CORP. 26 April, 1967, No. 19113/67. Heading C3P. A synthetic rubbery polymer latex is prepared by an emulsion polymerization which comprises (a) polymerizing a first increment of a monomer, which is chloroprene, conjugated diolefines homopolymerizable to produce rubbery polymers and/or mixtures of conjugated diolefines and up to 50% by wt. of monoethylenically unsaturated monomers copolymerizable therewith to produce rubbery copolymers, in an aqueous medium in the presence of a micelleproducing surfactant and a polymerization catalyst until a portion of the increment has been converted to polymer and unreacted monomer has been absorbed by the polymer particles, (b) subjecting the resulting latex to sufficiently vigorous agitation to cause agglomeration of the above polymer particles, (c) adding at least one additional increment of the monomer to the latex in an amount whereby free monomer is present in the latex and (d) after each addition subjecting the latex to further polymerization in the presence of free surfactant and the polymerization catalyst. In the example a mixture of styrene and butadiene is polymerized in an aq. mixture of potassium oleate, diisopropyl benzene hydroperoxide, sodium hydroxide, ethylenediamine tetra-acetic acid, ferrous sulphate, sodium formaldehyde sulphoxylate, tert.- dodecyl mercaptan, sodium alkyl naphthalene sulphonate, tetrasodium salt of ethylene diamine tetra-acetic acid and sodium hydrosulphite.
Patent GB-380187-A (GB)
Title: Improvements in and relating to printing machines
IPC: B41L47/46
Filed: 1931-07-02
Abstract: 380,187. Guards and protectors. ADDRESSOGRAPH CO., 901, West Van Buren Street, Chicago, U.S.A. July 2, 1931, No. 19145. Convention date, Dec. 22, 1930. [Class 80 (iv).] An addressing or like series-printing machine comprises a platen arm 57 rocking about a shaft 56. A member 55 rocked about the same shaft by a cam 50 fixed to a shaft 52 oscillated from a main drive shaft 29, has a shoulder 67 forming an abutment for a screw 66 mounted on the arm 57, so that as the member 55 turns counterclockwise the platen falls by its own weight, injury caused by the presence of an obstruction being thereby avoided. Immediately prior to printing, a latch 60 pivoted on a pin 78 in the arm 57 and pressed by a spring 65 against a stop 63 on a stationary rail 62, engages a shoulder 58 on the member 55 whereby an impression blow is provided.
Patent GB-828572-A (GB)
Title: Elastic pneumatic return or damping device
IPC: F16F9/02
Filed: 1957-06-18
Abstract: 828,572. Pneumatic springs. BOUGEARD, A. June 18, 1957 [June 27, 1956], No. 19148/57. Class 108(3) In the piston and cylinder type air spring shown, the piston 2 returns to its position of equilibrium, Fig. 2, whenever it is displaced by external forces. To bring the piston 2 into equilibrium position, compressed air is introduced through a non-return valve 6. This forces the piston 2 downwards, the air below it escaping to the atmosphere through a vent hole 13, until the piston 2 closes this vent by passing over a groove 12. The piston continues to move down and uncovers a port 10. This allows air to flow from about the piston to below the piston througha pipe 8 until equilibrium is reached when the piston is blocking both the port 10 and the vent 13. When the piston is moved upwards the pressure difference across the piston increases thus tending to restore equilibrium. If the vent 13 is uncovered during upward movement, excess pressure from below the piston escapes and increases the pressure difference. When the piston is moved slowly downwards air flows from above to below the piston, due to the pressure difference, to restore equilibrium. When the piston moves quickly downwards air below the piston will be compressed, a valve 9 preventing air flow from below to above the piston, and the piston will be urged upwards. This upward pressure will be greater if the vent 13 has been uncovered during the initial downward movement, thus lowering the pressure above the piston by allowing air to escape to the atmosphere.
Patent GB-932417-A (GB)
Title: Improvements in sawing machines
IPC: B23D45/02
Filed: 1962-05-18
Abstract: 932,417. Sawing. E. SCHWABEDISSEN. May 18, 1962 [June 2, 1961], No. 19175/62. Class 145. A sawing machine for cutting up boards comprises at least one rip saw 6 and at least one cross-cut saw 7 mounted on a carriage 8 and several work supports 1, 2, 3, 4 capable of relative vertical displacement so that the board can be supported at a lower level for division into longitudinal strips by the saw 6 and then the strips can be separately raised to a higher level so that cuts 10, 11 at different spacings can be made by the saw 7. The supports are raised by hydraulic cylinders 9 and the adjacent supports 2, 3 have a saw gap 5 between them and are mounted in a common guide frame coupled to and transversely displaceable with the rip saw 6.
Patent GB-997502-A (GB)
Title: Dynamo electric machine
IPC: H02K7/08
Filed: 1963-05-15
Abstract: 997,502. Dynamo electric machines. MEZ BRNO, NARODNI PODNIK. May 15, 1963 [May 31, 1962], No. 19197/63. Heading H2A. In a dynamo electric machine, e.g. induction motor, having stator end windings 1 embedded in plastic masses 2 which support the rotor bearings 3, the end portions of the laminated stator core 4 have structural means to which the masses are secured and anchored, in order to prevent interstices being formed by thermal expansion of the laminations and windings. The means are either holes 5 or protrusions 6 in the core end plates 7, and the anchorage may be improved by profile rings 8 attached to the core by welding or stacking strips 9 and to one of which a mounting flange 10 may be welded.
Patent GB-533011-A (GB)
Title: Improvements in or relating to electric torches
IPC: F21L4/00
Filed: 1939-07-01
Abstract: 533,011. Battery lamps. HOUGHTON, M. M. July 1, 1939, Nos. 19213/39 and 660/40. [Class 39 (ii)] A battery lamp in which the circuit between the battery 3 and the lamp 14 is completed (as by rotation of a cap 31) to move the battery axially until its contact 23 engages a contact 24 which is connected through a spring 22 to a contact 19 in contact with a lamp terminal 20 is provided with a rubber casing with a rubber plug closure member. The spring 22 acts as a shock absorber and opening of the circuit is effected by a spring 34, returning the battery when the cap 31 is unscrewed. A leaf spring 25 provides a connection between the socket of the lamp and the outer casing of the battery. Instead of using a separate reflector the shaped open end of the rubber casing may be pointed or enamelled to constitute a reflector.
Patent GB-1466835-A (GB)
Title: Suspension device for slipper brake magnet
IPC: B61H7/08
Filed: 1975-05-07
Abstract: 1466835 Brake apparatus KNORR BREMSE GmbH 7 May 1975 [13 Sept 1974] 19252/75 Heading B7L [Also in Division F2] A slipper brake electromagnet 12 is supportable at each end on a railway vehicle and in spaced relation to a track rail 2 by a respective spring suspension device including a compression spring 6 and a pull rod 8 passing through the spring 6 which latter is seatable on a bearer member 4 of the railway vehicle around an aperture 5 through which the pull rod 8 passes. The upper end of the spring is connected to a spring abutment plate 7 secured on the rod 8 and the lower screwed end of the rod 8 is connectible by a screwed bearing element 10 to a bearing eyelet 11 on the end of the slipper brake 12. The invention is characterized in that the spring 6 can be prestressed by a screw nut 9 on the rod abutting the underside of the bearer 4. In another form, Fig. 3 (not shown), the element 10 is secured to the lower end of the rod 8 and the abutment 7 is adjustable on the upper end of the rod.
Patent GB-382596-A (GB)
Title: Improvements in or relating to sound recording systems
IPC: H03G7/00
Filed: 1932-07-07
Abstract: 382,596. Sound-recording circuits. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Keller, A. C. ; 3, Park Lane, Mount Vernon, New York, U.S.A.) July 7, 1932, No. 19289. Convention date, Jan. 23. [Class 40 (iv).] In a soundrecording system there is provided in addition to or instead of the usual monitoring instrument 13 giving the velocity of the stylus or, in an optical system, the ribbon amplitude, a meter 14 giving the curvature of the wave form or, in an optical system, the ribbon velocity and/or (in mechanical systems) a meter 15 giving the stylus amplitude. The meters are all of the same type and are operated with the aid of rectifiers 28, 29, 35 by the voltages fed to or produced by the recorder, but the circuit of the meter 14 includes a very high resistance 31 in series and an inductance 32 of much lower impedance in shunt to make its readings proportional to the acceleration of the stylus which gives a measure of the curvature. In an optical recording system this meter would give an indication of the ribbon velocity. The circuit of meter 15 similarly includes a high resistance 34 and a condenser 36 of comparatively low impedance and so gives a measure of the stylus amplitude. Equalizing networks 30, 33 are provided to take account of the variations in efficiency of the recorder at different frequencies. They can be omitted if the meters are operated by voltages derived from a coil arranged in a supplementary magnetic field and carried by the stylus arm. In a modification. Fig. 2 (not shown), a common equalizing network and high resistance are provided for both meters 14, 15.
Patent GB-125037-A (GB)
Title: Improvements in Automatic Lubricators for Engine Bearings.
Inventor: BURTON CHRISTOPHER DOVE
IPC: F16N7/00
Filed: 1918-11-25
Abstract: 125,037. Burton, C. D. Nov. 25, 1918. Gravity - feed lubricators. - A lubricator for marine engines &c. comprises a reser. voir 1, Fig. 1, containing a float 8 to which is fixed a syphon tube 10 adjustable vertically by a screwed nut 11. The oil is delivered in drops to a chamber 5 which has a valved outlet at some distance above the bottom. When the valve is closed, oil is delivered to the chamber 5 until the surface seals the end of the tube 10; this ensures a liberal supply of oil when the valve is re-opened. Oil is fed into the reservoir through a strainer 3. Fig. 3 shows a modification in which the adjustment of the siphon is effected by tilting a spherical float 8 by means of weights 13. The Provisional Specification describes also a water jacket for keeping the apparatus at a uniform temperature.
Patent GB-655731-A (GB)
Title: Improvements in or relating to boots, shoes and like footwear having rubber or like soles and/or heels and the method of making same
Inventor: HARVEY REX ARGUILE
IPC: A43B13/04
Filed: 1948-07-20
Abstract: 655,731. Rubber-soled footwear. HARVEY, HARVEY, & CO., Ltd. July 20, 1948, No. 19414. Addition to 413,418. Drawings to Specification. [Class 17(ii)] Sole- or heel-tip as in the parent Specification is attached by throughstitching through the sole, upper and insole. The stitching may be extended beyond the tip.
Patent GB-205551-A (GB)
Title: Improvements in the method of and means for cutting or generating helical teeth of toothed gearing wheels
IPC: B23F5/14
Filed: 1922-07-15
Abstract: 205,551. Brown & Sons (Huddersfield), Ltd., D., and Green, A. July 15, 1922. Gear-cutting.-In a machine for generating helical or spur gearing by means of a rack-tooth cutter which, by relative rolling movement, generates the tooth profile on both sides of a tooth space simultaneously, the cutter is fed to the blank in such a way that the bulk of the cutting is effected by the outer and leading edges of each rack-tooth, the rear cutting-edge serving merely to impart the required profile to the flank on which it operates. Fig. 11 shows the path of the cutting tooth a into the blank, the generating motions being omitted. In order that the cutting may be effected by the edges b, c of the cutting-tooth a a tangential movement equal to the distance between the lines AB and CD is imparted to the tool during the radial feed. One stage of the operation of generating gear-teeth according to the invention is shown in Fig. 14. Fig. 1 shows the invention applied to a machine for cutting double-helical teeth on a blank 3 by means of two rack-cutters 2 reciprocating on inclined guides on a carriage 8<a>. The rotation of the blank and the vertical movement of the cutter-carriage 8<a> are effected through the usual gearing so as to produce correct rolling of the blank on the cutter. A nut 14 on the screw 9 which operates the vertical cutter-movements is formed with worm-wheel teeth and mav be driven by a worm 15 actuated through a flexible shaft 17 and shaft 18 from a handle 19. The shaft 18 is connected by change gears to the blank feedscrew 20 so that when, after each revolution of the blank, the latter is fed towards the cutters, the required tangential movement is simultaneously imparted to the cutter-carriage. In a modification, instead of imparting tangential movement to the cutters the blank itself may be adjusted after each radial feed movement. In a further modification the invention is applied to a machine in which the cutters reciprocate in a fixed path and the rotary and tangential movements are both imparted to the blank. Fig. 17 shows one stage in the cutting of a rack in accordance with the invention.
Patent GB-218857-A (GB)
Title: Machine for providing thumb or finger holes in pasteboard box covers or the like
IPC: B31B50/00
Filed: 1923-07-30
Abstract: 218,857. Marks, E. C. R., (Ritchie & Co., W. C.). July 30, 1923. Rotary and oscillating blade type. - A machine for cutting thumb-holes in cardboard box-blanks comprises a continuously-moving conveyer feeding the boxes towards a stop which arrests the boxes at a mechanism for cutting the thumb-holes. The box-covers 116 are moved by a conveyer belt 38 passing over adjustable rollers 37, 39 driven through a sprocket chain 47 from an electromotor 62, between side guide-bars 63, to the cutting station where they are stopped by the back edge of the box striking a stop pin 114 adjustably mounted on a rod 105 actuated against spring pressure from a cam 103. Cutting-apparatus comprises a yoke 92 reciprocated through a lever 97 from a cam. A cross-plate 78 carried by a shaft 76 is separated from the yoke by a strong spring 100, and on its underside adjustably supports thumb hole cutting elements 85, 87 the pivoted members 87 of which are connected by links 91 to the yoke. During the cutting the elements descend and straddle the sides of the box until a stop 77 strikes a fixed bearing 75. The spring is then compressed and the members 87 are swung to cut the thumbholes. A presser 118 prevents the box from rising.
Patent GB-968448-A (GB)
Title: Improvements in barrel nuts
IPC: F16B37/04
Filed: 1963-05-16
Abstract: 968,448. Barrel nuts. F. W. ROHE. May 16, 1963 [Oct. 2, 1962], No. 19544/63. Heading F2H. A barrel nut comprises a cradle A, having a curved wall 21, and a seat 22 for a nut portion B, the latter having curved sides 32 which are slightly inset from wall 21 of the cradle. The nut can be mounted in a transverse bore 15 of a body C to receive a bolt D. The cradle has a bridge 20 with integral arcuate fingers 23, and pins 25 are press-fitted into holes 24 in the fingers to retain nut portion B. In operation when bridge 20 yields under load, sides 32 are moved into engagement with bore 15 thereby supporting the nut in the bore.
Patent GB-186583-A (GB)
Title: Improvements in or relating to friction ratchet gearing
IPC: F16D41/066
Filed: 1922-07-17
Abstract: 186,583. Lavaud, D. S. de. Sept. 24, 1921, [Convention date]. Ratchet gearing. -Friction ratchet grips comprise balls or rollers 6, adapted to be jammed in inclined recesses, the balls &c. of each grip touching one another so as to form a continuous " roll," which supports the outer member. Each ball &c. is supported at one or more points 9 in addition to the jamming surfaces. Specification 183,456 is referred to.
Patent GB-749524-A (GB)
Title: Improvements in or relating to apparatus for measuring the components of the cuttingeffort in turning and planing
IPC: B23B47/24
Filed: 1953-07-15
Abstract: 749,524. Dynamometers. CHIESORIN, P. July 15, 1953 [July 16, 1952], No. 19615/53. Class 106 (2). An apparatus for measuring the component forces acting on a cutting tool when used for turning or planing work, comprises opposed pairs of anti-friction thrust bearings supporting the tool holder, one thrust member of each pair being coupled to a resilient support which supports the tool holder against a component of the cutting force, whereas the other member is coupled to a diaphragm actuating a liquid displacement member. In Fig. 3, the forces on a cutting tool L are resolved into three components T, A and R. The means for measuring these components, Figs. 1 and 2, comprises a hollow body 1 for the tool holder 3, four robust resilient membranes 19, 19<SP>1</SP>, 20, 20<SP>1</SP> disposed around the tool holder 3, and cup-shaped members 17 pressed by the membranes against the tool holder 3 to support the same, there being a number of small balls 27 between the cups 17 and the tool holder 3 to reduce friction. In Fig. 1, one end of the tool holder 3 is in a ball- and-socket joint 4, 5 in means 13 permitting an axial movement of the tool holder 3 against the resistance of the robust resilient membrane 10. Movement of the membranes 10, 19 and 19<SP>1</SP> causes deflections of associated thin membranes 23, 21 and 22 respectively, to cause variations in the levels of associated mercury columns 8, 6 and 7. The tool holder 3 is preliminarily adjusted in position by screwed stoppers 31, 31<SP>1</SP> until the mercury meniscus in the tubes 6 and 7 reaches maximum level. A plug 44 is also adjusted until the mercury meniscus in the tube 8 occupies its lowest position. The columns 6, 7 and 8 are then calibrated by exerting known efforts in the three directions T, A and R to cause the mercury columns 6 and 7 to fall and column 8 to rise, after which the apparatus is fixed in position on the lathe &c.