baber/WOPTO huggingface dataset:
Patent GB-343340-A (GB)
Title: Improvements in the application of reflectors to electric lamps
IPC: F21V17/08
Filed: 1930-03-10
Abstract: 343,340. Mounting reflectors on electric lamp holders. MAXLUME LIGHTING & HEATING CO., Ltd. and THORPE, F. W., Plume & Victoria Works, Aston, Birmingham. March 10, 1930, No. 7691. [Class 75 (ii).] In a reflector a having an upper vertically disposed cylindrical part c adapted to closely surround an electric lamp holder e and to hang from a spider member f which is rigidly carried by the lampholder and is provided with a central externally screw-threaded sleeve g engaged by a screw-down cap i for locking the reflector in position on the spider, the horizontal flange c<2> at the upper end of the part c is formed with a circular and axial hole c<3> and immediately below the flange the part c is formed with one or more depressions or piercings d. The top of the holder e is formed with a reduced neck h the sides of which are parallel to two diametrically opposite projecting parts f<2>, f3 on the spider. The parts f<2>, f<3> will not normally pass through the hole c<3>, but, by means of the piercings d and the neck h, the reflector can be skew-threaded over the holder until the flange c<2> is completely above the spider/. The underside of the flange c<2> may be provided with shallow seatings or with depending ears j to straddle the parts f<2>, f<3>.
Patent GB-1286903-A (GB)
Title: Photochromic glass for optical fibre fabrication
IPC: C03C3/11
Filed: 1970-02-18
Abstract: 1286903 Photochromic glass CORNING GLASS WORKS 18 Feb 1970 [24 Feb 1969] 7695/70 Heading C1M [Also in Division C4] A transparent photochromic glass comprises by weight 30-76% SiO 2 ; 0-26% Al 2 O 3 ; 4-26% B 2 O 3 ; 10-50% Ta 2 O 5 ; one or more alkali metal oxides, the alkali metal content including 2-8% Li 2 O, 3-15% Na 2 O, 6-20% K 2 O, 8-25% Rb 2 O, or 10-30% Cs 2 O; one or more of Cl, Br and I, the halogen content including at least 0À2% Cl, at least 0À1% Br or at least 0À08% I; and silver, in an amount of at least 0À05% where Br or I are present and at least 0À2% when Cl is present; the balance, if any, comprising compatible constituents to a total not exceeding 15%. Optionally present may be CuO (0À01-0À1%); As 2 O 3  (0-0À2%); Mg (0-4%); CaO (0-6%); BaO (0-8%); SrO (0-7%); ZnO (0-8%); and PbO (0- 10%). The glass has a refractive index of above 1À52 and may be used as the core of an optical fibre. The crystal content of the glass is preferably 0À005 to 0À1% by volume, and the crystal size does not exceed 0À1 micron in diameter. The glass may be prepared by melting the batch at 1300-1500 C. for 4-8 hours, cooling and shaping the solidified glass, and re-heating to 550-850 C. for -8 hours to cause crystallization and development of photochromicity.
Patent GB-939732-A (GB)
Title: Improvements in conveyors
Inventor: HUNTER JOHN WALTON
IPC: B65G39/20
Filed: 1960-03-04
Abstract: 939,732. Endless chain conveyers; overhead conveyers. HERBERT MORRIS Ltd. March 4, 1960, No. 7749/60. Classes 78 (1) and 104 (2). An endless driven chain provided with hangers for supporting loads or with dogs for engaging load supporting trolleys running on a track comprises U-shaped links 10 pivotally connected by pins 11 and by spindles 12 which support rollers 17 running on L-section rails 15 secured together by brackets 16. Guide rollers 18 or balls are mounted in brackets 18a secured to the vertical sides of alternate links 10. Bifurcated load-supporting hangers 21, Figs. 1, 3, are supported on the spindles 12. As shown in Fig. 5, the hangers are replaced by pusher dogs 23 pivoted to the links 10 adjacent the rollers 18 for engagement with load-supporting trolleys 24 which run on rails 15a and which are provided with spindles 25 supporting guide rollers 26.
Patent GB-802492-A (GB)
Title: Power transmission clutch
IPC: F16D43/12
Filed: 1956-03-13
Abstract: 802,492. Clutches. BARCLAYS BANK, Ltd. March 11, 1957 [March 13, 1956], No. 7775/56. Class 80 (2). A friction disc 13 is clamped between clutch plates 11, 12, when the driving shaft 17 reaches a predetermined speed, by centrifugal weights 18 pivoted on pins 19 fast with the clutch plate 12. The plate 12 is of magnetic material and is withdrawn from engagement with the member 13 to disengage the clutch against the effect of centrifugal force by energizing the winding 27 of an electromagnet 26. Such clutch disengagement may occur when gear changing. In this case the circuit for the brush 37 supplying current to the winding 27 has a normally open switch 47 on the gear lever 49. The switch 47 is closed to disengage the clutch when the lever 49 is moved to change gear. The electric circuit also has a normally open micro-switch 43 which is only closed when the accelerator pedal 45 is depressed sufficiently for the engine to be driven fast enough for the centrifugal weights 18 to engage the clutch.
Patent GB-468803-A (GB)
Title: Improvements in decorative mats, signs or the like
IPC: A47G23/03
Filed: 1936-03-16
Abstract: 468,803. Compound sheet materials. HOLT, A. March 16, 1936, No. 7857. Drawings to Specification. [Class 140] [Also in Group XIV] Flexible, decorative table mats or signs comprise a sheet of glass cut up after mounting on a backing containing a thin layer of cork interposed between the glass and a paper or textile layer, e.g. an open-woven fabric. The glass, cork, and paper or fabric are united by an adhesive such as rubber solution or a composition comprising a plasticized spirit-soluble resin and an inert mineral filler, the glass is then cut with a diamond and broken, and the sharp edges are smoothed off with a flat carborundum stone while the mat is bent along each line of cut. The edge of the mat may be bound with adhesive tape.
Patent GB-567715-A (GB)
Title: Fracture splints
IPC: A61B17/74
Filed: 1943-05-18
Abstract: 567,715. Treating fractures ; splints. ANDERSON, R. May 18, 1943, No. 7884. [Class 81 (ii)] Fracture-treating means of the character including transfixion pins, half-pins or wires, for holding the fractured fragments during reduction and healing, comprises one or more rods 10 and clamps 18, adapted for rotation and sliding adjustment along the rods 10, each clamp having means for holding a transfixion pin &c. and for securing it to a rod 10, the tightening of the holding means rendering the transfixion pin &c. and the rod rigid, whereas the loosening of the holding means renders them relatively adjustable. For holding the portions of a fractured femur during the healing process, half-pins 31 are positioned in non- parallel relationship in each portion of the bone, each respective pair of half-pins being clamped at 18 to rods 10, the rods 10 being connected by another rod 10 through clamps 12. The portions of a fractured tibia are held by pins 30, clamped at 18 to rods 10 and wires 32 held taut in yokes 33 furnished with pins 34, Fig. 9, clamped at 18 to rods 10, the two units being connected by further rods 10 clamped at 12. Turn-buckles may be provided in the connecting rods 10 to enable tension to be applied to the portions of the bone. Other combinations of half-pins, pins and wires are described for the treatment of intertrochanteral and femoral fractures. Each clamping unit 12, Fig. 5, comprises U-shaped members bored at 13 to slide on the rods 10, a bolt 15, pinned at 15x, passing through each clamping member to tighten them upon the rods 10 in their adjusted position. Each clamp 18, Fig. 8, comprises a U-shaped member, bored at 19 to slide on the rods 10, tightened by a bolt 21, headed at 22 and transversely bored at 26 to receive pins 34, 30 or half-pins 31. A nut device for tightening wires 32 in their yokes 33, and a hand tool for pressing pins 30 or half-pins 31 through the bore in the fractured bone, are described. Specification. 470,579 is referred to.
Patent GB-566137-A (GB)
Title: Improvements in or relating to the stiffening of shoes and stiffeners adapted for use for such purpose
IPC: A43B23/08
Filed: 1942-06-10
Abstract: A stiffening member for footwear comprises absorbent fibrous sheet material such as felt or fabric impregnated with a condensation product of a substance containing an amino group or groups and an aldehyde, the condensation product being in a water-soluble condition capable of being hardened to a water-resistant form.  The substance containing an amino group or groups may be urea, thiourea, melamine, dicyandiamide, biuret, or adipamide.  The resin is applied to the fabric in the partly condensed form, e.g. as syrupy aqueous solution containing 70 per cent of resin, stabilised by having its pH value adjusted to between 7 and 8, and is caused to pass to the water-resistant, hardened form by treatment with a weak acid or an acidic salt such as ammonium chloride.  The shoe upper may be shaped after treatment with the hardening agent, but before undue hardening has occurred, and is left on the last until the resin is cured and dried.  Heat may be applied to accelerate curing and drying. Toughening agents such as nitrocellulose, cellulose acetate, ethyl cellulose, polymerized vinyl acetate, polymerized butyl methacrylate, polymerized ethylene oxide, oil-modified alkyd resin, chlorinated rubber, asphalt, mineral, animal or vegetable drying or non-drying oils may be added, and also fillers such as ground hair, leather dust, ground slate, walnut shell flour, cellulose, and finely divided asbestos.  The resin syrup may be mixed with an aqueous emulsion of the toughening agent and a small quantity of a stabiliser such as triethanolamine, piperidine, trisodium phosphate, or sodium borate, and the filler mixed in. Alternatively, the toughening agent as such or dissolved in a water-immiscible solvent, may be emulsified with the resin syrup, water being added if necessary.  A water-miscible liquid such as alcohol may be added to the emulsion to hasten drying. The composition may be applied to sheet material from which blanks are cut suitable for insertion between the exposed portion and the lining of the upper, or may be applied to blanks already cut to shape.  The hardening agent may be applied to the blank, or to an adjacent layer of the upper materials.  Alternatively, the composition and curing agent may be applied to the lining which may be a heavy fabric napped on one side which is placed adjacent the leather upper.  Specifications 297,463, [Class 140], 376,807, 386,328, 449,243, 470,097, 477,841, 480,316, 483,399, 486,577, 527,704, 555,419 and 560,223 are referred to.
Patent GB-1144975-A (GB)
Title: A combined preparation applicator and polisher
IPC: A47L13/19
Filed: 1967-02-20
Abstract: 1,144,975. Polishing and applicator pads. PRESCOTT CLOCK & WATCH CO. Ltd. (R. J. Haley of W. J. Hagerty & Sons Ltd. Inc.). 19 Feb., 1968 [20 Feb., 1967], No. 7963/67. Heading A4F. A combined preparation applicator and polisher comprises a fabric sheet 1 impregnated with a preparation, such as a tarnish preventative or a polish and a coextensive unimpregnated polishing sheet 2, the two sheets being secured together to form a bag or mitten with an open end through which a user's hand can be inserted.
Patent GB-766340-A (GB)
Title: Improved machine for mining coal and other minerals
Inventor: JACKSON DAVID
IPC: E21C27/04
Filed: 1954-03-19
Abstract: 766,340. Mineral-mining machines. MAVOR & COULSON, Ltd. May 2, 1955 [March 19, 1954], No. 8003/54. Class 68 (1). Projecting sideways from the body of a mineral-mining machine are two loop frames 28, 29 of a configuration such as shown. In the forward surfaces of each frame is a guideway in which circulates an endless, pick-carrying chain that, in the buttock of the face, forms a kerf of such a size that the associated frame may enter. The frames are rigidly mounted one on the body of the machine and the other on a vertically adjustable turret 37, 38 and are driven by sprockets 24, 25. The frame 28 precedes the frame 29 when the machine moves along on a face conveyer during the cutting operation.
Patent GB-257298-A (GB)
Title: Self regulating wind mill
IPC: F03D7/02
Filed: 1925-03-25
Abstract: 257,298. Pinaud, J. A. March 25, 1925. Wire and rod springs.-A helical torsion spring 16 for use with the adjustable blades of wind motors has each end 28 united firmly, preferably by welding, to its adjacent convolution in order to eliminate the adjustment error arising from the rubbing of the free convolution ayainst the stationary end of the spring.
Patent GB-868279-A (GB)
Title: Improvements in seismic prospecting devices
IPC: G01V1/13
Filed: 1960-03-07
Abstract: 868,279. Explosive assemblies for geophysical prospecting. DU PONT DE NEMOURS & CO., E. I. March 7, 1960 [March 6, 1959], No. 8027/60. Class 9(1). A delay element and connecting device for propagating explosion comprises at least two rigid elongated telescopic tubes 7, 8, means 17, 18 at each end of the said assembly for connecting an explosive charge or another delay unit thereto, and a delay producing unit 11 within the said assembly, comprising an explosive element extending from one connecting means to the other and being at least as long as the fully extended assembly. The delay unit consists of low energy connecting cord comprising a core of detonating explosive, an inner metal sheath, preferably lead or a tinlead alloy, and a protective waterproof outer sheath of e.g. rubber or polyethylene. At the ends of the connecting cord are tubular shells 12, containing an initiating explosive charge e.g. PETN and secured by crimps 13. A primary charge 16 e.g. PETN, RDX, is inserted in a plug 15a sealing the free end of the tube 8. The detonating explosive may be either nitromannite, HMX, lead azide, picryl sulphone, the lead salt of dinitro-ocresol, or a mixture of 50 parts of smokeless powder, 25 parts of the lead salt of dinitro-ocresol, and 25 parts of potassium perchlorate. Specification 857,178 is referred to.
Patent GB-868986-A (GB)
Title: Improvements in or relating to manual control units
Inventor: FISHER WILLIAM HAWARDEN
IPC: B25J19/00
Filed: 1958-03-13
Abstract: 868,986. Manual control units. GENERAL ELECTRIC CO. Ltd. March 13, 1959 [March 13, 1958], No. 8063/58. Class 40 (1). A manual control unit for a remote handling device comprises a shaft which is mounted for movement in two directions on a pivot or bearing through which it may also rotate, centralizing and electrical pick-up means being associated with at least one and preferably all the possible movements. In Fig. 2 the shaft 4 is pivoted at 3 in such a way that it can be moved both sideways and upwards, each motion rotating a corresponding toothed sector 8 (only one shown) which turns a pinion 10 on the shaft of a potentiometer. The shaft 4 can also be rotated in the bearing 3 and this motion is similarly communicated to a potentiometer by a gear 14. Over-travel of the latter is prevented by a peg 15, and excessive vertical and horizontal movement of the shaft is limited by a gate 13. The shaft is moved against three coil springs (only two shown: 22, 24) so that it is returned to the central position when let go. Initial movement in a horizontal direction causes an arm 19 to close one of a pair of micro-switches 26 to energize the corresponding potentiometer. A similar pair of micro-switches is provided for vertical movement. The hand grip for operating the shaft is of the pistol type (Fig. 6) and carries two further electrical control units. Angular movement of the grip about a pivot 50 causes a gearsector 46 to operate a potentiometer 48, and pressure on a knob 52 operates a micro-switch 53. A mechanical interlock 54 ensures that these cannot be operated simultaneously. The potentiometer 48 has a micro-switch 49 to ensure cut-out at the end of its travel. The weight of the hand grip is balanced about the mounting panel 1 by a counterweight 55 (Fig. 2). A modified hand grip (Fig. 4, not shown) includes in the casing a system of parallel links for operating another pair of micro-switches simultaneously with the potentiometer, and the switch corresponding to 53 is operated by the hand grip. Normally two such units are provided, one for each hand of the operator, and the various electrical circuits are connected to servomotors for carrying out the desired operations. Each potentiometer could be replaced by a series of micro-switches, a stepped rotary switch or an inductive device.
Patent GB-755131-A (GB)
Title: Improvements in or relating to centrifugally spinning, twisting or doubling textile material and to machines therefor
Inventor: WRIGHT FRANK
IPC: D01H9/06
Filed: 1954-03-19
Abstract: 755,131. Doffing centrifugal spinning devices. PRINCE-SMITH & STELLS, Ltd. Feb. 1, 1955 [March 19, 1954], No. 8082/54. Classes 120 (2) and 120 (3). Yarn collected in the container of a centrifugal twisting unit is doffed by inserting a bobbin into the container, trapping the yarn extending between a reciprocating guide and the container wall by means attached to the bobbin, a sleeve or the spindle, severing the yarn near the point of entrapment and causing the container to cease rotating so that the yarn mass collapses on to the bobbin. The bobbin 10 is carried by a flange 15 of a sleeve 12 which rests upon a dead spindle 13 carried on a rail 14 that is rotatable to tilt the bobbin 10. On the upper end of sleeve 12 is arranged an annulus 16 extending beyond the rim of the flange 15 so that when the bobbin 10 is raised into the container 1 it overlaps and embraces the end of the yarn guide 6 when the latter is fully withdrawn. In this position, the span 9 of yarn rotating with the container 1 is entrapped within a slot 17 and held there by an elastic band until the span 9 is severed by contact with a serrated edge 19. When the container 1 comes to rest, the mass 11 of yarn collapses upon the bobbin 10. Rotation of the container 1 is recommenced as the bobbin 10 is lowered and by tilting the bobbin after clearing the container, the yarn extending from the guide 6 is severed by contact with the bottom edge of the container 1. When the bobbin 10 is removed from the sleeve 12, it has an end leading from the interior of the yarn mass for piecing. This is obtained by winding a few turns of yarn above the main mass in the container.
Patent GB-874092-A (GB)
Title: Improvements relating to shaft bearings
Inventor: FLOYD GERALD WILLIAM
IPC: B64C11/00
Filed: 1958-03-13
Abstract: 874,092. Lubricating bearings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 13, 1959 [March 13, 1958], No. 8128/58. Classes 12 (1) and 12 (3). A combined journal and thrust bearing for a shaft 6 comprises a sleeve 3, having a cylindrical bearing surface 5, and an apertured thrust bearing member 12 which is spaced axially from the sleeve 3 by felt pads 16a extending radially through slots in the adjacent end of the sleeve 3. A relatively large annular felt member 17 forms an oil reservoir which is in contact with felt members 16 having portions 16b passing through slots 14 in the member 12 to convey oil to the thrust bearing surface and having the portions 16a which convey oil to grooves 20, Fig. 3, in the bearing surface 5. Oil flinger washers 9, 10 are secured to the shaft, and the washer 9 abuts the thrust bearing member 12, thereby additionally serving as a thrust washer. The sleeve 3 is mounted in an end shield 2 of a small electric motor by means of a cylindrical housing 4 which is closed at its ends in an oil-tight manner by means of a pair of dished annular plates 7, 8.
Patent GB-325141-A (GB)
Title: Improved domestic appliance for wringing clothes
IPC: D06F45/00
Filed: 1929-03-13
Abstract: 325,141. Hermes, C. H. March 13, 1929. Wringers. - A wringing- appliance comprises a cranked shaft 14 rotated in bearings in a bracket 1 clamped to the side of the wash-tub. The shaft is provided with a hook 16 at its forward end over which the clothes &c. are engaged, the clothes also being held by the other hand of the operator. A spring clutch 17 prevents reverse rotation of the shaft. Longitudinal movement of the shaft is prevented by split pins 12, 13, which pass through the. shaft and bear against the lugs 5 and 6 of the bracket 1.
Patent GB-703967-A (GB)
Title: Improvements in structural members and connection means therefor
IPC: E04G1/12
Filed: 1952-04-01
Abstract: 703,967. Joining structural members. SMITH, R. W. April 1, 1952 [April 3, 1951], No. 8210/52. Class 20 (2). [Also in Group XXV] A structural assembly comprises channel members 16, 17, 18, Fig. 2, each formed with inwardly turned flanges 22 and joined together mutually at right angles by a bracket 18 secured by bolts 14 which engage channel shaped nuts 15, Figs. 3, 7, located in the channel members and formed with serrated edges 30 which engage two rows of serrations 25 formed longitudinally on the inner faces of the flanges 22. The edge portions of the flanges 22 are turned inwardly to form parallel spaced ribs 23 which are engaged by the flanges 29 of the nuts 15. Each nut 15 is resiliently biased into engagement with the serrations 25 by a leaf spring 31 formed on the nut 15 and engaging the inner face of the web 20 of each channel member. This serves to retain the nut 15, when not engaged by a bolt, at any position along the length of a channel member. Indentations 33, 38 on the bracket 19 provide projections engaging between the ribs 23 on the channel members to locate the bracket and prevent relative rotation between it and the channel member. In addition when the bolts 14 are tightened, the flanges 29 on the nuts 15 clamp the ribs 23 against the projections. In a modification two channel members only are secured together similarly at right angles. U.S.A. Specification 2,345,650 is referred to.
Patent GB-1038714-A (GB)
Title: Improvements relating to multiple position rotary switches
Inventor: ELLIOTT KENNETH FREDERICK
IPC: H01H36/00
Filed: 1964-02-27
Abstract: 1,038,714. Magnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 21, 1965 [Feb. 27, 1964], No. 8211/64. Heading H2B. A multiposition rotary switch comprising a two-part cylindrical housing 4 coaxially surrounding a rotatable permanent magnet assembly 31 has a plurality of circumferentially spaced sealed magnetic reed contact units 1 located in pairs of aligned sockets 5, 6 formed in the parts 9 and 8 of the housing. The permanent magnet assembly comprises (Fig. 2, not shown) a pair of axially magnetized permanent magnets 29, 30 clamped between the opposite ends of blocks 27, 28 secured to shaft 22. Pole pieces 31 are secured to the outer sides of blocks 27, 28. A similar housing 14 may be secured to housing 4 by bolts 20 in which case the shaft 22 would carry a permanent magnet assembly for the units 1<SP>1</SP> of this housing. Terminals which may be terminal tags or co-operate with socket terminals 33 are led out from between adjacent overhanging insulating blocks 35, 36, 37 or 38. Only one permanent magnet need be provided in each magnet assembly.