baber/WOPTO huggingface dataset:
Patent GB-563458-A (GB)
Title: Improvements in or relating to trail frogs for overhead electric traction systems
IPC: B60M1/14
Filed: 1943-04-29
Abstract: 563,458. Frogs for overhead electric conductors. BRITISH INSULATED CABLES, Ltd., LONDON PASSENGER TRANSPORT BOARD. BROOM, T. C., and POWELL, H. J. April 29, 1943, No. 6804. [Class 104 (iii)] In an overhead double tongue spring-back trail frog, such as described in Specification 546,314, means are provided, actuated by the approaching collector, for automatically changing the direction of the force exerted by the spring 38 on the movable tongues 13, 14, so that the spring may hold either tongue in the open position. The actuating means may comprise a roller 28 located between the approach conductors 11, 12, and adapted to be moved transversely by the passing collector on 12 to reverse the spring toggle mechanism 32, 34, 35, 38 for reversing the positions of 13, 14. The collector then trails through the tongue 14 in the open position, so that the tongue 13 in the closed position permits reverse travel of the collector from the conductor 7 to the conductor 11.
Patent GB-383838-A (GB)
Title: An improved household measuring spoon
IPC: G01F19/00
Filed: 1932-03-08
Abstract: 383,838. Household measuring spoons. BRADSHAW, F., 164, Compstall Road, Marple Bridge, near Stockport. March 8, 1932, No. 6890. [Class 106 (v).] An adjustable household measuring spoon comprises a hollow semicylindrical member B closed at one end by a rounded wall F and open at the other end, the open end being adapted to slide in an arcuate slot in the end wall of a case or handle n, or have a semicylindrical block or metal case slidable within it, for the purpose of adjusting the capacity. The inner surface of the spoon is graduated. The slidable internal block or case is retained bv turned-over edges on the sides of the member B and may be extended to form a handle.
Patent GB-125517-A (GB)
Title: Improvements in and relating to the Joints of Railway Rails.
Inventor: BENSON FRED FRANKLIN
IPC: E01B11/40
Filed: 1918-04-24
Abstract: 125,517. Benson, F. F. April 24, 1918. Rail joints, welded; rail joints, scarf and like.- A rail joint of the type in which projecting fishplates are welded or otherwise secured to the ends of each rail so that one fish-plate on each overlaps the other rail end, have the fish-plate 10 of such a thickness that they extend beyond the side face of the head of the rail and have the upper part cut away so as to form an inner face 11 deep enough to allow the passage of the flange of the running wheel. Tie-plates 15, having lugs 17 which engage with the flange of the rail, may be employed between the rail and sleepers. The lugs are perforated to receive securing spikes.
Patent GB-770300-A (GB)
Title: Improvements relating to sewing machines
Inventor: MERRELL GEORGE LEONARD
IPC: D05B3/18
Filed: 1955-02-23
Abstract: 770,300. Sewing machines. STEELS & BUSKS, Ltd. Feb. 23, 1955 [March 10, 1954], No. 6977/54. Class 112. Eyeletted tapes, sewing.-Mechanism for protecting a sewing machine needle 13 during formation in a base material of stitching running across rigid elements in said material, such as in attaching an eyeletted tape 54 to base material 56, comprises a member 34 which is mounted adjacent and above the path of the work and is mechanically coupled with the driving means of the machine so as to oscillate in timed relation with the needle about an axis 38 transverse to the direction of feed, and an arm 43 articulated to member 34, the arrangement being such that, on oscillation of member 34, a claw 45 on member 43 moves a short distance along the surface of the work to shift any obstructive rigid element, such as an eyelet 55, which it encounters out of the way of the needle. Arm 43 is pivoted at 42 to member 34 and is urged downwardly by a spring 47, a pin 46 on arm 43 engaging member 34 to limit the downward movement. Pivot 38 is carried by a bracket 39 detachably secured to the head 3 of the machine. A rod 32, adjustably secured in a slot 35 provided in member 34, is reciprocated by means of a link-andlever connection to a cam mounted on the shuttle-driving spindle in the base of the machine. It is stated that the point of articulation of arm 43 to member 34 may be adjustable. or the arm may be of variable length; and that arm 34 may be operated from the main driving spindle of the machine through a cable transmission. It is also stated that the invention may be applied to a multi-needle machine or to a machine having a compound needlemovement. A guide for the work is mounted on a slide 50 giving access to the shuttle mechanism, and comprises two spaced bars 52,52' connected together by a top plate 51 having a rearwardly extending tapered tail 53 of reduced width. A hemmed edge 58 of the tape is guided by bar 52. The opposite edge of the tape is received in an undercut portion of bar 52'. The material 56 is fed into alignment with hem 58 at the leading end of the presser foot 18 and is united with the tape by a line of stitching 60. The point of the claw 45 is periodically applied against the single layer of tape within the path of travel of the eyelets and alongside the tail 53. Presser feet.-The presser foot 18 is connected to the presser bar 16 by a resilient blade 17.
Patent GB-732671-A (GB)
Title: Improvements in and relating to spinning mules
Inventor: CHAMBERLAIN NORMAN HENRY
IPC: D01H3/00
Filed: 1952-03-19
Abstract: 732,671. Spinning-mules. T. M. M. (RESEARCH), Ltd. Feb. 6, 1953 [March 19, 1952], No. 7086/52. Drawings to Specification. Class 120(2). Backing-off mechanism for a mule includes a normally inoperative coupling for imparting rotation to the tin roller, the coupling being actuable by the faller, and means for automatically rendering the coupling effective during backing-off so that the faller imparts to the tin roller a reverse movement as it descends into operative position. Preferably a torque amplifier is arranged between the faller shaft and the tin roller shaft and the coupling includes an electrically controlled differential gear. The subject-matter of this Specification is included in that of Specification 732,665. Specification 732,672 also is referred to.
Patent GB-1261444-A (GB)
Title: Fire-resistant ceiling board
Inventor: ROBERTS JAMES ROBERT
IPC: E04C2/292
Filed: 1969-02-10
Abstract: 1,261,444. Laminated acoustic panel. UNITED STATES GYPSUM CO. 10 Feb., 1969 [29 Feb., 1968], No. 7133/69. Heading B5N. [Also in Divisions C3 and D2] A fire-resistant acoustic tile comprises a metal facing sheet adhered by acrylic adhesive to a porous backing board, the sheet extending to # inch or less from each edge of the board and perforations being provided through the sheet and board to 1/16 inch or less from the rear face of the board. The metal sheet may be steel foil and the backing board may comprise mineral wool with starch binder, gel binder and perlite. A concave bend may be provided at the faced surface by heating the board to 175-225‹ F. and the sheet to 150-200‹ F. and laminating while hot. The back surface of the board may be coated with polyvinyl alcohol paint and the sheet may be coated with metal primer. 1400 perforations per square foot may be provided.
Patent GB-521582-A (GB)
Title: Improvements in or relating to distant control electric apparatus for signalling from a central station over the supply main
IPC: G08B27/00
Filed: 1939-03-07
Abstract: 521,582. Electric signalling systems. VALVASSORI, V. March 7, 1939, No. 7416. [Class 40 (i)] A receiver for an air raid alarm &c. signals over the supply mains comprising current cut-off for a predetermined time, consists of a bimetallic strip 1 heated by coil 5 so that it takes up the extreme right-hand dotted line position where normally it intermittently makes and breaks the heating circuit at 10. The strip carries a pivoted member having insulating and conducting portions 4, 3 so that when the current is originally switched on, the strip bends and the insulating portion engages a conducting rack 7 as at 3a. When the current is switched off, the strip straightens and the pivoted member runs back along the rack with the insulating portion in engagement therewith as at 3c, but if current is switched on before the member leaves the rack, the strip bends and jams the conducting portion of the member against a rack tooth as at 3d and completes a circuit for audible warning devices 11, 11a, of which 11a may be a detonator. In order to terminate the signal, the current is switched off long enough for the member to run back off the rack so that when current is again switched on, the bi-metallic blade returns to the signal responsive position. The blade could be arranged to operate a signal in the straight condition if the supply is permanently cut off.
Patent GB-1046062-A (GB)
Title: Scraper mechanisms for use in precipitation, sedimentation, separating or clarifying tanks
Inventor: COOPER FRANK GEORGE EDWARD
IPC: B01D21/18
Filed: 1964-02-24
Abstract: A horizontal tubular carrier for a sludge or scum scraper or both is made in sections joined end to end, at least one section being sealed to provide buoyancy, and segmental spacers between sections being provided to permit liquid to flow into unsealed sections.  Where the mechanism is intended for both sludge and scum, preferably it is mounted between two endless chains.
Patent GB-968283-A (GB)
Title: Improvements in or relating to combinations of mowing implements with tractors
IPC: A01B51/02
Filed: 1961-01-18
Abstract: 968,283. Reaping machines. C. VAN DER LELY N.V. Jan. 18, 1961 [Feb. 8, 1960], No. 7543/63. Divided out of 968,282. Heading A1F. A mower 2 is mounted on a three-point linkage 9 of a threewheeled tractor which is adapted to be driven in reverse in the direction V. The tractor has a steerable wheel 6 and may mount another implement 3 adjacent this wheel. A central baffle 19 and two side boards 21, 22 guide the cut crop into two swarthes. In an embodiment three mowers are mounted on the lift links of the tractor one on either side as shown in Fig. 5 and one disposed centrally of the tractor. A side mower 32 is supported from a yoke 38 connecting the lift links by a linkage 46, 48 and bracket 56, the latter also having pivoted to it a rod 66 of a linkage 68 arranged to raise the cutter bar about pivot 58 as the lift links are raised. The cutter bar is driven by rod 63 from an eccentric 59 connected to the power-take-off of the tractor. A spring 74A connected to the bracket 56 is arranged to transfer some of the weight of the cutter bar to the supporting link 48 and also to turn the cutter in the direction S when the cutter is lowered from a transport position. In further embodiments the linkage 68 is replaced by a chain passing over a pulley and incorporating a spring within its length. In a further embodiment a single cutter is supported on the yoke by a parallel linkage normally held in the cutting position by an adjustable spring which yields to allow the cutter to pass over uneven ground. Specification 968,284 also is referred to.
Patent GB-1292908-A (GB)
Title: Process for the production of fibers, textiles and shaped articles composed of inorganic materials
IPC: C01B31/30
Filed: 1970-02-17
Abstract: 1292908 Making metal oxide, nitride or carbide articles UNION CARBIDE CORP 17 Feb 1970 [17 Feb 1969] 7558/70 Heading C1A [Also in Divisions C7 and D1] A "relic" process, see Specifications 1,144,033, 1,159,210 and 1,177,782, in which organic polymeric fibres, textiles or shaped articles impregnated with metal (including Si) compounds are converted by heating under appropriate conditions into articles having the form of the organic precursor but composed of metal oxides, carbides or nitrides, includes the steps of carbonizing the impregnated precursor then contacting it at above 740 C. with CO 2  to remove all or part of the carbon from it by oxidation. In examples rayon yarn is impregnated with an aqueous ZrOCl 2 -YCl 3  solution and rayon tape with a Th(NO 3 ) 4 -CeCl 3  solution. Each is then treated with ammonia to convert the metal compounds to their hydroxides, carbonized in a stream of nitrogen, oxidized in a stream of CO 2 , and in the second case heated for a further period in air, to form a metal oxide yarn or tape. Other specified metals are W, Be, Al, Ta, Nb, Mg, Ca, Sr, Hf, La and the other rare earths.
Patent GB-1055126-A (GB)
Title: Treatment of glass
Inventor: RAY NEIL HUNTER
IPC: C03C21/00
Filed: 1964-02-24
Abstract: To toughen and strengthen glassware, the glass is heated to just below its softening point throughout and then quenched in a melt at a temperature below the lower annealing temperature of the glass, the melt comprising at least one etching agent dissolved in a molten salt whose cations at the temperature of the melt replace a proportion of the cations in the surface of the glass and occupy a larger volume therein, the etching agent being such as not to give use to H ions or other ions with greater affinity for the cations in the glass surface than the cations of the molten salt.  For glass containing Na or Li ions potassium nitrate is used as the molten salt, with the addition of 2-5% by weight of metallic silver, silver salts or thallium salts as catalyst or modifier if desired, and the etching agent dissolved therein can be sodium or potassium fluorides or borofluorides, ammonium fluorphosphate or silver fluoride, the proportion of etching agent being from 20-60% by weight.  Preferred mixture is 60-70% potassium nitrate and 30-40% potassium borofluoride. Examples with temperatures are given.  Reference has been directed by the Comptroller to Specification 917,388.
Patent GB-1302765-A (GB)
Title: An apparatus for measuring the accuracy of the involute of toothed wheels
IPC: G01B7/28
Filed: 1970-02-17
Abstract: 1302765 Testing involute toothed gear-wheels VYZKUMNY USTAV OBRABECICH STROJU A OBR‰BENI 17 Feb 1970 [18 Feb 1969] 7628/70 Heading G1N The accuracy of the involute surface of the teeth of a gear-wheel 14 Fig.1 is determined by contacting the surface with a feeler 22 carried by a roller 13 driven by a motor 15 via wormgears 2 and 3. The errors in the worm-gear 2, 3 are measured by a selsyn 8 whose rotor is driven by the motor 15 and whose stator windings are fed with quadrature signals derived from a fixed pick-up 5 associated with a series of marks on a disc 4 driven independently by a motor 7. The number of marks corresponds to the gear ratio 2, 3 so that the frequency of the signal in the rotor winding of selsyn 8 is equal to that from a pick-up 6 rotating with roller 13 and any phase differences, measured by phase comparator 10 Fig.2, represent errors in the worm-gear 2, 3. The errors in the overall system are similarly measured by a selsyn 8' and pick-ups 5', 6', any phase differences between the signal in pickup 6' and the signal in the rotor winding of selsyn 8' being due to errors in gears 17, 18, gears 2, 3 and in the involute surface of the teeth of gearwheel 14, sensed by feeler 22. The errors in gears 17, 18 are negligible, and the errors in gears 2, 3 are eliminated by obtaining at 20 the difference between the outputs of selsyns 8, 8', whereby the output from mixer 20 represents the errors of the involute surface of the teeth of gearwheel 14 and are indicated at 12.
Patent GB-267970-A (GB)
Title: Improvements in or relating to a method of and apparatus for burning oil
IPC: F23C99/00
Filed: 1927-03-19
Abstract: 267,970. Holden. A. P., and Morgan, P. March 19, 1926, [Convention date]. Liquid-fuel furnaces.-In an oil-fired furnace, a nozzle arranged in the upper part of the fire-box, directs the fuel downwardly into an ascending stream of preheated secondary air which enters through an opening 3 in the furnace base 5 and passes upwardly through a mass 4 of refractory particles piled over the opening. The fuel is fed to the nozzle from an atomizer 6 which is provided with an igniting device 8 and with means for heating air prior to its admixture with the fuel. The invention is shown as applied to the furnace of a vertical boiler.
Patent GB-204274-A (GB)
Title: Gas cleaning apparatus
IPC: C10K1/04
Filed: 1923-03-16
Abstract: 204,274. Andersen, N. M. March 16, 1923. Gases, treating with liquids. -Apparatus for cleaning gases s comprises a vertical zig-zag tube 3 of substantially rectangular crosssection, provided with inlets 1, 2 at the upper end thereof for the gas t o b e cleaned a n d water respectively, and an outlet 5 at the lower end for the cleaned gas, the water with the impurities being deposited into a tank 6 also at the lower end. The tube is provided with cleaning dampers 4, while the sides of the pipe at the more acute bends 7 are covered inwardly so that the pipe is thus strengthened and the falling contents are better spread.
Patent GB-1042283-A (GB)
Title: Attachment device for building panels, walls, or the like
IPC: E04B1/82
Filed: 1964-02-25
Abstract: 1,042,283. Resilient mountings. A. KNAUF, and K, KNAUF, [trading as KNAUF GEBR.]. Feb. 25, 1964 [Feb. 25, 1963], No. 7757/64. Heading F2S. [Also in Division E1] A composite stud 10 to form a resilient interconnection between, e.g., two wall panels 5, comprises longitudinal members 11 and 12, separated by, and secured to a resilient plate 20, of, e.g., rubber. As shown, the longitudinal members are connected together, with an interposed rubber block 22, by a hollow rivet with swaged ends which butt against washers 26. Members 11 and 12 may be of channel-section with unequal flanges, as shown, or may be simple angle- or T-sections (e.g. Fig. 1, not shown), or may be otherwise as shown, but with the shorter flanges bent inwardly and backwardly towards the bases 13 of the members (Fig. 9, not shown). The washers 26 may be replaced by plate springs (Fig. 9, not shown). Various other materials are given for the resilient plate, which may be glued, as well as riveted, to the longitudinal members.
Patent GB-1043445-A (GB)
Title: Improvements in and relating to mechanism for adjusting a rotationally adjustable element
IPC: H03J5/10
Filed: 1964-02-25
Abstract: 1,043,445. Toothed gearing; two-speed gearing; cams. PHILCO CORPORATION. Feb. 25, 1964 [Feb. 25, 1963], No. 7773/64. Headings F2D, F2K and F2Q. [Also in Division H3] A rotationally adjustable element is adjusted by means of a control shaft which is selectively rotatable or tiltable, one of these movements effecting coarse adjustment of the element, while the other effects fine adjustment. For coarse tuning of a television receiver, a shaft 34, Figs. 2 and 3, having a control knob 30, is moved to the position shown dotted on Fig. 3 to engage a pin 32 with clutch dogs 36, and is rotated to drive a shaft 20 carrying the movable plates of a tuning condenser through gears 40, 42, a shaft 26 which is rotatable and also tiltable about a tilt-bearing 28, and gears 24, 22. A crown detent plate 44 secured to the gear 42 acts with a spring-loaded detent ball 46 to locate the shaft 26 in 35 angular positions, each position bringing a respective fine tuning slug 52, radially mounted in a wheel 58 secured to the shaft 26, into engagement with a roller 54 on a hollow shaft 56 rotatable on the shaft 34 and carrying the gear 40 and dog 36. For fine tuning, the knob 30 is moved to the position shown in full lines on Fig. 3, bringing a crownwheel 74 into mesh with an idler gear 76 meshing a gear 78 on the slug 52 engaging the drum 54, rotation of the shaft 34 acting through the gears 74, 76, 78 to screw the slug 52 radially in the wheel 58 to tilt the shaft 26 which, since it is held against rotation, causes a small angular movement of the shaft 20. A floating link 66 journalled on the shafts 20, 26 holds the gear 24 in mesh with the anti-backlash gear 22 on shaft 20. Each slug 52 has a screw-threaded portion 112 which may engage a threaded slot 110 in a ring 106 on the wheel 58, rings 104, 1 08 having guide slots 114, the threads being urged to re-engage at one extreme (see 118) by a resilient ring 120 and at the other extreme (see 122), when in an angular position in which the slug contacts the roller 54, by the action of a spring 70. The rod 84 carrying the idler 76 is cantilevered from a bush 80 and prevented from rotation by a hooked end which engages the shaft 26. In a modification (Fig. 5, not shown), the direct drive from a knob 154 to a tilting shaft 134 is via a chain drive 138, the fine tuning slug 150 being screwed axially into the rim of a wheel 176 to bear against a fixed tab 180. A coaxial knob 157 may be pushed in to engage a gear 172 with the slug gear 174 for fine tuning. In another modification (Fig. 4, not shown) also using a chain drive for coarse adjustment, the shaft 140 carrying a single knob is movable axially, as in Fig. 3, to select coarse or fine tuning, a crown gear 162 on the shaft meshing directly with a slug gear 164, the fine tuning slugs being radially movable in the slug wheel and being frictionally held against free rotation by a spring wire 167.
Patent GB-807125-A (GB)
Title: Protective apparatus for electric current distributing systems
Inventor: ROBINSON ERIC ERNEST
IPC: H02H7/06
Filed: 1956-03-13
Abstract: 807,125. Protective arrangements for generating systems. ROTAX Ltd. March 1, 1957 [March 13, 1956], No. 7784/56. Class 38 (4). A protective arrangement for a distribution system comprises a pair of transductors so connected that upon the occurrence of a fault or abnormal current or voltage in the system the transductors function to cause means such as a relay to operate the interrupt or short-circuit the field circuit of the generator supplying the system. Windings 8, 9 and 12, 13 of two transductors are connected in series parallel pairs through half-wave rectifiers to a bridge rectifier 17 and are energized from a transformer 16 connected to the distribution system 7. The direct current side of the rectifier bridge 17 is connected to a field current control relay 18 in series with feedback windings 21, 22 on the transductors thereby to control the current in the field winding 6 of the generator 5 according to the condition of the transductors. The transductors are controlled by direct current control windings 23, 24 and 29, 30, those 23, 24 forming reference windings and being connected, in series with a barretter 28, to the distribution system 7 by means of a transformer 26 and a rectifier 25. Windings 29, 30 are also connected to the distribution system 7 through the transformer 26 and rectifier 25 but are dependent upon changes in the system output current at voltage. In other embodiments the D.C. control windings 29, 30 are connected in parallel and the transformer 16 may be connected to the system 7 through a condenser and a resistor.
Patent GB-1386931-A (GB)
Title: Process and apparatus for purifying sea-water
IPC: C02F1/06
Filed: 1973-02-16
Abstract: 1386931 Distilling sea-water HITACHI Ltd 16 Feb 1973 [25 Feb 1972] 7791/73 Heading B1B Fresh water is obtained from sea water introduced at 605 by flushing at 101, condensing the vapour at 11 by direct contact with recycled condensate from 203, and passing the condensate from 11 to be partially flushed successively at 201, 202 and 203, the resulting vapours being condensed by indirect heat exchange with the sea water from 605 passing through condensers 607, 608 and 609 and recycling the remaining unflushed condensate from 203 to 11 for the said condensing by direct contact. Fresh water is drawn off at 713.
Patent GB-674117-A (GB)
Title: Improvements in cutter blades for gear cutters
IPC: B23F21/22
Filed: 1948-04-15
Abstract: 674,117. Milling - cutters. GLEASON WORKS. April 15, 1948 [May 24, 1947], No. 7861/51. Divided out of 673,932. Drawings to Specification. Class 83 (iii). The subject-matter of this Specification is substantially the same as that of Specification 673,932, but the claims are directed to the cutter blade,