baber/WOPTO huggingface dataset:
Patent GB-101778-A (GB)
Title: Improvements in Devices for Locking Together Bolts and Nuts, or the like.
Inventor: JAMES RICHARD EDWARD REYNOLDS
IPC: F16B39/02
Filed: 1916-08-09
Abstract: 101,778. James, R. E. R., and James, C. W. Aug. 9, 1916. Locking nuts.-The end of the bolt A is split and bored, and the inner end of the bore is screwed left-handedly. The nut is tapered by providing threads of increasing diameter towards the face K, or the bolt is tapered, or the nut and bolt are both tapered. The ends of the bolt are pressed against the nut by a tapered screwed pin E provided with a rectangular or other head F.
Patent GB-942041-A (GB)
Title: Improvements in or relating to uni-directional clutches or brakes
IPC: F16D41/066
Filed: 1961-03-28
Abstract: 942,041. Ratchet clutches; one way acting brakes. E. E. WILKINSON. Sept. 29, 1961 [March 28, 1961], No. 11260/61. Headings F2C and F2E. A one-way clutch or brake, which is disengaged for both directions of rotation below a predetermined speed and may be used for controlling reaction members of planetary trains, e.g. the overdrive train of Specification 842,121, or in a cycle planetary hub gear, comprises wedging balls or rollers B carried by a driving disc K which balls are urged outwardly by centrifugal force, against the action of springs S, into engagement between a plate A fast with and angularly adjustable on the disc K and a driven drum R. The plate A may be adjusted angularly by screws F. For braking reaction members the drum R is fixed as releasably braked. A dust excluding felt washer may be provided between the disc K and drum R.
Patent GB-627782-A (GB)
Title: Improvements in speed-reducing gearing
IPC: G05G7/02
Filed: 1947-04-28
Abstract: 627,782. Change-speed gearing. GENERAL ELECTRIC CO., Ltd., and MUDDIMAN, P. V. April 28, 1947, No. 11325. [Class 80 (ii)] [Also in Group XL (c)] In a two-speed gear, e.g. for a radio tuning dial, of the kind providing a reduced drive over a limited angle of rotation after which the drive is direct, a floating lever 20 has a single tooth 23 which fulcrums between peripheral serrations on a fixed circular reaction track 12 so that when the lever is rocked by a slotted arm 14 on the driving shaft 10 engaging a pin 21 on the opposite end of the lever, a pin 22 at its other end will impart a reduced drive to a slotted arm 16 on an aligned driven shaft 11. During reduced drive the driving pin 21 of the floating lever 20 tracks an arcuate cam surface 18 on the driven arm 16, centered about the lever fulcrum 19, the ends of the surface 18 being cut down at 18' so that at the end of the reduced drive arc, the outer end of the slot 15 in the driving arm 14 contacts the lever pin 21, pushing the lever bodily downwards on to the cut-down part 18<1>, thus disengaging its fulcrum 19 from the fixed reaction track 12 and locking the parts solid for direct drive. Modifications are described in which (Figs. 4 and 5 not shown), the cam track 18 is a slot in the lever 20 and embraces the driven shaft 11, and (Figs. 6 and 7 not shown), in which the lever pins 21, 22 are both on the same side of the shaft axis, the reaction track being concave instead of convex.
Patent GB-827061-A (GB)
Title: Improvements relating to heat exchange apparatus
Inventor: BATTLE NORMAN
IPC: F28F1/12
Filed: 1955-04-19
Abstract: 827,061. Making heat exchangers. ROLLS. ROYCE Ltd. April 9, 1956 [April 19, 1955], No. 11331/55. Class 83 (2). [Also in Group XIII] A method of making a secondary surface element for a heat-exchanger comprises the steps of punching lines of holes 11 in sheet-metal material, the lines extending transversely of the length of the sheet and the holes of one line being staggered with respect to the holes in adjacent lines, removing the sharp edges from the punched holes, and bending the sheet to the zig-zag form shown in Figs. 2 and 3 in which the element comprises straight parallel portions interconnected by bend portions, the lines of holes being disposed substantially in the straight portions. The ends of the holes may be curved as shown, or the holes may be of rectangular shape. The sharp edges of the holes after punching may be removed by mechanical abrasion, electro-polishing and/or tumbling in a liquid-suspended abrasive material. The element is finally brazed between adjacent heat-exchanger tubes 13, as shown. Specification 827,060, [Group XIII], is referred to.
Patent GB-156449-A (GB)
Title: Improvements in means for securing the lids of jars, bottles and the like and for providing a fluid tight joint between pipe sections
IPC: B65D55/06
Filed: 1920-04-23
Abstract: 156,449. Pinkney, J. April 23, 1920. Overlap joints, with packing wrapped by rotating sleeve.-Relates to means for providing a fluid-tight joint between pipe sections, also for securing the lids of bottles, jars, &c. The two members to be joined are each provided with a circumferential groove which coincide when the members are assembled, and the space formed by the coinciding grooves receives a length of flexible packing- material the inner end of which is secured to the inner of the two members whilst the free end extends out through a hole in the outer member so that when one member is rotated relatively to the other the packing is pulled in through the hole and wound within the space formed by the coinciding grooves. Figs. 2 and 3 show a jar b and lid a provided with coinciding circumferential grooves e, d, the flexible packing c passing through holes f, h in the jar and lid and having its inner end g knotted to prevent withdrawal. To facilitate assembly of the lid on the jar, a vertical groove j is provided from the adjacent edge of the lid or jar to the corresponding hole h or f. Fig. 7 shows the invention applied to the overlapping ends k, l of pipe sections. The packing may consist of asbestos or other string, rubber, leather, &c.
Patent GB-807667-A (GB)
Title: Mechanical pencil feed mechanism
IPC: B43K21/12
Filed: 1957-04-08
Abstract: 807,667. Pencil holders. SCRIPTO Inc. April 8, 1957 [Oct. 25, 1956], No. 11368/57. Class 146(3) A mechanical pencil comprises a guide tube 24, a lead-gripping clutch member 26 and a propelling member 27 slidably disposed in the guide tube, the propelling member having a shank portion 44 slidable within the clutch member 26 and formed with shoulders 46 and 47 facing rearwards and forwards respectively, the clutch member 26 having ears 48 formed thereon to abut the shoulder 46 and a flexible arm portion 49 extending rearwards from the ears to the shoulder 47, the inner face of the guide tube 24 holding the arm 49 in abutment with the shoulder 47 so that the clutch member is held against the propelling member for movement therewith within the guide tube, except near the front end thereof at which the guide tube permits such outward displacement of the arm 49 as to release the propelling member 27 for separate movement to eject a spent lead from the clutch member 26. The propelling member 27 also includes at its rear end a nut portion 43 having a toothed radial lug 45 which projects through a longitudinal slot in the guide tube 24 and engages threads 31 formed on the inner surface of a tube 28 disposed outside and concentrically with the guide tube for rotation relative thereto and to the barrel 10 of the pencil thus causing longitudinal displacement of the propelling member 27 When the front end of the clutch member 26 reaches the bottom of a bore 22 in the point section 11 of the barrel a boss 50 formed on the arm 49 coincides with an aperture 51 in the guide tube 24 so that on continued rotation of the tube 28 the shoulder 47 on the propelling member shank 44 forces the arm 49 outwards thus allowing the propelling member to be advanced until the ears 48 abut the shoulder 47. At this point the front end of the shank 44 has passed completely through the tubular portion of the clutch member 26 thus ejecting the last portion of lead L remaining therein. The tube 28 has longitudinal recesses 30 on its outer surface to accommodate spare leads. A washer 33 is fitted over the rear ends of the tubes 24, 28 and is keyed to the latter by leg portions 34; a retaining pin 38 is passed through the rear end of the guide tube 24 and rests upon the upper surface of the washer 33. A sleeve 35 is attached to the washer by dimpling as at 36, which sleeve is a friction fit in an aperatimig sleeve 12 having a plastic cover 14 by rotation of which in relation to the barrel 10 the tube 28 is rotated in relation to the guide tube 24, the latter being fixed in the point section 11. Lugs 52 are formed on the underside of the washer 33 having radially extending triangular sides facing in the direction in which the tube 28 is rotated for. retracting the propelling member 27. One of the lugs 52 abuts laterally against the lug 45 on the propelling member 27 when the latter is fully retracted, so as to prevent the nut portion 43 from jamming against the forward face of the washer 33 and damaging the threads 31. The sleeves 12, 35 carry erasers in their rear ends.
Patent GB-982983-A (GB)
Title: Hydraulic apparatus containing synthetic rubber compositions
Inventor: LIGGINS TOM
IPC: F16D65/18
Filed: 1961-03-28
Abstract: 982,983. Hydraulically-operated disc brakes. PRECISION RUBBERS Ltd. March 12, 1962 [March 28, 1961], No. 11416/61. Headings F2E and F2F. An hydraulic apparatus containing at least one shaped and cored elastomeric component in contact with liquid employed in the apparatus has the component formed from a composition based upon a curable blend of 70 to 95 parts of a rubbery butadiene-acrylonitrile copolymer and from 30 to 5 parts of a copolymer of at least 40 mol. per cent of ethylene with an alphaolefine containing at least 3 carbon atoms. Specified apparatus includes propeller-braking, hydraulic wheel-braking and wheel-lifting systems. Referring to the drawing, there is shown an hydraulic propeller brake unit employing a hydraulic fluid. The brake unit has a calliper assembly 1 between sections of cylinder block 2; fluid inlet connection 3 and bleed screw adaptor 4 are fitted to the cylinder block but have interposing sealing rings 5 and spacer rings 6. The transfer tube 7 allows flow of hydraulic fluid from one section of the block to the other and fluid leakage is prevented by sealing rings 8. Pistons 9 with sealing rings 10 (fitted with retainer rings 11) control movement of friction pads 12 separated from the pistons 9 by studs 13 and fusible plugs 14. The friction pads 12 are hydraulically operated to cause braking of the disc 15 which forms part of the propeller shaft. The sealing rings 5, 8, and 10, and formed of the composition. Specification 876,395 is referred to.
Patent GB-501486-A (GB)
Title: The manufacture of copper complex compounds of disazodyestuffs of the stilbene series
IPC: C09B45/28
Filed: 1938-04-14
Abstract: 501,486. Dyes. I. G. FARBENINDUSTRIE AKT.-GES. April 14, 1938, No. 11570. Convention date, April 19, 1937. [Class 2 (iii)] Copper complex compounds of disazo dyes of the stilbene series are made by acylating 4-nitro-4<1>-aminostilbene-2 : 2<1>-disulphonic acid, reducing the nitro group, diazotizing the 4- amino - 4<1> - acylaminostilbene - 2 : 2<1>- disulphonic acid thus obtained, coupling with a diazotizable amine of the naphthalene series containing in o-position to the diazotizable amino group a group capable of being metallized, further diazotizing and coupling with a compound of the naphthalene series containing in o-position to the coupling position a group capable of being metallized, and converting the disazo dye thus obtained into the corresponding copper complex compound. Alternatively, the corresponding nitrostilbene disazo dye is first formed which is then reduced, acylated and coppered. They dye vegetable fibres green to greenish grey shades. In examples, dyes from the following components are described: the acetyl, benzoyl, 3-methoxy- or 4-chlorbenzoyl derivatives of 4 - nitro-41 - aminostilbene - 2 : 2<1> - disulphonic acid (made by acylation) ; 1-amino-2-ethoxynaphthalene-7- or 6-sulphonic acid; the N- acetyl-, succinoyl-, benzoyl-, o- or m-carboxybenzoyl-, chloracetyl- and methoxyacetyl derivatives of J-acid. The copper compounds are made by heating with copper sulphate in presence of sodium acetate. The Specification as open to inspection under Sect. 91 states that the steps in the production of the dyestuffs may be performed in any desired sequence. This subject-matter does not appear in the specification as accepted.
Patent GB-494510-A (GB)
Title: Improvements relating to end sleeves or closures for electric cables
IPC: H02G15/23
Filed: 1937-04-22
Abstract: 494,510. Cable end sleeves. ALLGEMEINE ELEKTRICITATS-GES. April 22, 1937, No. 11581. Convention date, April 22, 1936. [Class 36] An end closure for the end of a cable comprises a sleeve 5 surrounding the bared insulation 4 and sealed at one end to the contact or terminal device attached to the bared end of the conductor, the other end of the sleeve being sealed to the sheath of the cable by a device comprising a casing 1 and a bush 6. The bush screws into the casing and presses a collar 3 on the end of the sleeve against packing 2 contained in the casing, and thereby forces the packing against the cable sheath. The casing and bush are formed of moulded insulating-material. A boss 8 having moulded into it a screw-threaded metal bush 9 may be formed on the casing to provide means for attaching the casing to a support. The end of the casing may have a stepped tubular extension 10 or be provided with a stepped reducing piece so that the casing may be employed with cables of different diameters.
Patent GB-1069380-A (GB)
Title: Isolation of metallisable, black monoazo dyestuffs
Inventor: BREIG KURT
IPC: C09B67/06
Filed: 1966-03-16
Abstract: Metallizable black monoazo dyestuffs are obtained by spray-drying an aqueous dyestuff solution or suspension obtained in the preparation of Diamantschwarz PV or PBB (C.I. Nos. 16500 and 16505) or mixtures of these dyes without previous isolation of the dyestuffs.  The solutions or suspensions are rendered acidic prior to spray-drying and preferably have a pH of 4-6.  Shading dyestuffs and/or standardizing agents may be added to the aqueous solutions or suspensions or to the product obtained after spray-drying.
Patent GB-216309-A (GB)
Title: Improvements in and relating to annular drills and cutters
IPC: B23B51/04
Filed: 1923-05-01
Abstract: 216,309. Cooke, W. P. May 1, 1923. Drilling - machines; cutters.-In a tool for cutting holes in sheets of metal, wood, stone, vulcanite or any combination of these materials of the type comprising a centre pin 1 on which is mounted a pressure pad 2 engaging the work on the side opposite to a cutter 5, feed being imparted by a nut 8 mounted on a screwed part of the centre pin, the cutter body 4 is mounted directly adjacent the feed nut with the interposition of an anti-friction bearing 6. The cutter body is provided with holes or faces for the reception of tommy bars &c. and the pressure pad has an upstanding rim the inside diameter of which is approximately equal to the outside diameter of the cutter. A washer having a central hole to receive the centre pin may be, placed in an aperture which it is desired to enlarge.
Patent GB-117961-A (GB)
Title: Improvements in and connected with Gripping and Clamping Appliances.
Inventor: CULLY FREDERICK WILLIAM
IPC: B25B7/02
Filed: 1917-08-15
Abstract: 117,961. Cully, F. W. Aug. 15, 1917. Clamps, tongs, vices, and other work-holding devices are faced with cotton or other fabric such as is used to face brake-blocks or, when the work to be dealt with is hot or requires to be heated, with a reinforced asbestos fabric. The facing- material is secured to a backing-plate which may be fixed so as to he readily detachable. Fig. 1 shows a pair of tongs in which the facing - fabric 1 is secured, by countersunk rivets 2 of soft metal, to backing-plates 3 which are fixed by screws 6. 7.
Patent GB-103780-A (GB)
Title: Improvements in Self-contained Breathing Apparatus.
Inventor: DAVIS ROBERT HENRY
IPC: A62B7/10
Filed: 1916-08-18
Abstract: 103,780. Davis, R. H. Aug. 18, 1916. Respirators. - Selfcontained regenerative breathing-apparatus, of the kind comprising a cooling-device in the form of a heat-radiating chamber mounted between the breathing-bag and the inspiratory valve, is provided with means whereby the cooling-chamber is cut off from the breathing-bag during the expiratory period. The invention is shown applied to apparatus of the type described in Specification 17644/10. A combined breathing-bag and carbon-dioxide absorption chamber a is connected to the inspiratory tube i of the face-piece b through a cooling-chamber e. Inspiratory valves g, h are arranged between the cooler e and the breathing-bag a and face-piece b respectively, so that the cooler is isolated during the expiratory period. A cooler d' is arranged between the expiratory-tube c and the gas-bag a. Oxygen from cylinders arranged on the wearer's back is conveyed by the pipe j directly to the cooler e. In modifications, more than one cooler may be arranged between the breathing-bag and the face-piece, and more than two inspiratory valves may be employed.
Patent GB-573652-A (GB)
Title: Improvements relating to trucks
IPC: B62B3/06
Filed: 1944-06-22
Abstract: 573,652. Trucks. BARKER, W. N., and WEBBERLEY, J. June 22, 1944, No. 11900. [Class 108 (i)] A truck suitable for transporting goods in factories is provided with a platform e vertically movable with respect to a frame a. Two pairs of coaxial pulleys f, f<1> are mounted on the frame and a chain or other flexible member g passes under pulley f and over pulley f<1>, the ends being secured to the platform at h and to a bracket j carried by the platform at i An hydraulic or other jack l moves the platform at one end, and corresponding movement is imparted to the platform at the other end by the chain to keep it horizontal.
Patent GB-954306-A (GB)
Title: Improved yarn or thread package retaining clip
Inventor: WALSOM DEREK JOHN
IPC: D06B5/16
Filed: 1961-04-04
Abstract: 954,306. Clip fastenings. FREEMAN, TAYLOR MACHINES Ltd. April 2, 1962 [April 4, 1961], No. 11908/61. Heading E2B. [Also in Division D1] In, a machine for liquid treating packages 2 of yarn in which the packages are threaded on a vertical spindle 1, a triangular clip 4 is provided to hold a top plate 3, slidable on the spindle, against a top package 2. The clip which is of closed triangular form and is made of strip material has apertures 5 and 6 formed on its sides 4a and 4b to mount the clip on the spindle. When the clip is pressed downwardly to urge cover 3 against the package 2, the upward reaction of the slightly compressed packages acts on the clip at the corner 4c and creates a turning moment to lock the clip on the spindle. The apertures may be oppositely directed equlateral triangles or circular in which latter case prominences are provided on the aperture walls to make contact with the spindle.
Patent GB-233721-A (GB)
Title: A device for the grooving of string boards and so forth
IPC: B23Q1/48
Filed: 1925-05-08
Abstract: 233,721. Guinand, P. May 8, 1924, [Convention date]. Trenching.-In a trenching machine particularly adapted for working on staircase stringers, the board is held bv arms 13 on a fence 11 movable on a slide 10, adjustable by means of a screw 12 on a plate 9 capable of oscillation. A rail 15 is provided to facilitate setting. The tool is adusted by means of a handle 7 provided with a clamping arm 8. The device may be used in connection with a moulding machine. Fig. 5 (Cancelled), which illustrates the tool handle and clamping arm, does not appear in the Specification as accepted.
Patent GB-179419-A (GB)
Title: Improvements in metallic gland packings
IPC: F16J15/28
Filed: 1921-04-26
Abstract: 179,419. Smith, R. H., Mosey, H. Y., and Smith, F. S. April 26, 1921. Packing, metallic.-Stuffing-box packing consists of soft metal rings 1, 2, coned externally and internally respectively, and separated by hard metal rings 3 coned both internally and externally. The packing is tightened against the rod and the stuffing-box by the pressure of a follower 8 and cap 9. The aperture in the ring 3 may be cf larger diameter than the rod, in order to form an oil space. The wearing face of the ring 1 may be grooved. Two sets of packing-rings may be separated by a lantern ring 7, to which lubricant is supplied. Corrugated washers may be placed at the ends of the stuffing-box.
Patent GB-1203373-A (GB)
Title: Improvements relating to photographic exposure control apparatus
IPC: G03B9/58
Filed: 1968-03-12
Abstract: 1,203,373. Photographic shutters. INTERNATIONAL POLAROID CORP. March 12, 1968 [March 13, 1967], No.11994/68. Heading G2A. The subject-matter of this Specification is substantially the same as that disclosed in Specification 1, 203, 372, but is particularly concerned with a keeper 30 secured to the blade 22 by a pin 38. Spring 27 engages a channel 40 in the keeper, such that when the first blade 20 is released to open the shutter no substantial biasing force is exerted directly on the second blade, thereby avoiding inadvertent release. The pin 38 passes through blade with clearance d<SP>1</SP> and through keeper 30 with clearance d.
Patent GB-1516945-A (GB)
Title: Semiconductor microwave device of the kind utilizing the transit-time effects
IPC: H03B9/12
Filed: 1976-03-25
Abstract: 1516945 Oscillators and amplifiers using negative resistance semi-conductor devices THOMSON CSF 25 March 1976 [28 March 1975] 12148/76 Heading H3T A transit time oscillator or amplifier comprises a transistor type semiconductor capable of oscillating at high frequency when a direct voltage is applied to across its collector and emitter and a transmission line connected to the base and collector electrodes of the semiconductor and having a short circuit termination which is adjustable along the line to neutralize the damping effect of the collector-base capacitance on the high frequency oscillations. In one embodiment, Fig. 4, the collector of the transistor is soldered to a microstrip base 41 and the base is connected to the transmission line 45 by a lead 150 and the microstrip circuit. The movable h.f. short circuit comprises a cylinder 46 in the line. The output is taken from the emitter via lead 160 and a further coaxial line 44. In a modification, Fig. 5 (not shown) the lines 44 and 45 meet at a right angle and the microstrip conductor is omitted. In another embodiment, Fig. 6, the transistor 40 is mounted in a rectangular output waveguide 60, the emitter being connected to a solder bead 64 on an alumina block 63 and in contact with a matching device 67. The coaxial line 45 connects to the base as before. In a modification, Fig. 7 (not shown) the block 63 and transistor 40 are mounted on a metallized alumina disc located in a cavity where the line 45 joins the waveguide 60.
Patent GB-775482-A (GB)
Title: Improvements in or relating to sliding seats
IPC: B60N2/08
Filed: 1954-04-27
Abstract: 775,482. Sliding seats. RENOLD CHAINS, Ltd., [formerly RENOLD & COVENTRY CHAIN CO., Ltd.,], and BERTOYA, O. April 21, 1955 [April 27, 1954], No. 12209/54. Class 52 (2). Lengths of roller chain 13 serve as one of the track members for a sliding seat 12 and ride on the upturned flange of the lower track 31. A spring-biased detent 48 engaging between the rollers can be freed by an operating handle 45. The chain is mounted between end blocks 14, 15 one of which can be adjusted by a tensioning screw 26.