baber/WOPTO huggingface dataset:
Patent GB-574905-A (GB)
Title: Improvements in or relating to gauge screens for use in optical contour-projecting apparatus
IPC: G02B21/00
Filed: 1943-05-12
Abstract: 574,905. Screens for optical gauging apparatus. STEVENS, A. H. (Weldon Tool Co.). May 12, 1943, No. 7567. [Class 97 (i)] [Also in Group XIX] In a master drawing for use in optical profileprojection apparatus the correct profile is indicated by a transparent line on a background having such light-transmitting properties that the shadow of the projected object formed on it may be observed. One form is made by coating a glass plate with a coating 2 of suitable optical density, for example one composed of a suspension of silver particles in gelatine, and then removing the coating along the line 3 representing the desired contour by a cutting tool. A suitable tool having a facetted cutting- point and means for holding it arede.s,crib.ed. Ground glass may be used, the coating being on the ground surface. A negative may be made from the cut master drawing by photographic contact-printing, from which photographic copies may be printed. The drawing may alternatively be made by photographic copying of a pencil or ink drawing on opaque paper, or by contact photographic printing from a drawing on tracing linen or transparent or translucent paper. The drawing may be used alone, or in contact with the usual ground glass screen of the projection apparatus. The provision of a transparent contour line obviates the masking of the edge of the shadow which occurs when it overlies the usual opaque contour line on the screen.
Patent GB-1495105-A (GB)
Title: Cine-camera
IPC: G03B17/04
Filed: 1976-02-26
Abstract: 1495105 Collapsible cameras FRANKE & HEIDECKE GmbH 26 Feb 1976 [14 May 1975] 07605/76 Heading G2A In a cine camera which is collapsible from an open (operative) position to a closed (non- operative) position, part of the viewfinder retracts in a closed position so that it no longer occupies all the internal camera space it occupied in the open position, this space then being occupied by other camera elements. The two housing sections 2, 3 of the camera are shown in Fig. 3 in the pulledapart or operative position, and in Fig. 4 in the closed together or non-operative position (see also Figs. 1 and 2 (not shown)). The camera lens 10 is uncovered in the Fig. 3 position, but covered in the Fig. 4 position. The view-finder system comprises a lens 11 and an eye-piece 12 in the front and back walls respectively. The particular viewfinder in the present example has also an intermediate lens 15, which is mounted on a pivotable plate 16. In the open position, plate 16 is urged by a spring to take up the position shown in Fig. 3 (and seen in more detail in Fig. 5 (not shown)), in which lens 15 is in alignment with the optical axis of the view-finder. When the housing sections are pushed together, a pin 22 fixed to the lower section 3 which is engaged in a slot 17 in plate 16 causes the latter to pivot anti-clockwise. Eventually this pivoting movement is completed by the upper edge of a cassette 24 mounted in the camera engaging the lower edge of the plate 16. Thus the lens 15 is swung completely out of the optical axis of the view-finder (Fig. 4, and also as indicated by the broken line positions of Fig. 5 (not shown)). The space vacated by lens 15 is now occupied by part of the cassette 24 and also by components such as the exposure measuring device 25, 26, 27.
Patent GB-100641-A (GB)
Title: Improvements in Time Fuses for Projectiles.
Inventor: CASANOVAS BALTASAR FARGAS DE
IPC: F42C19/08
Filed: 1916-05-30
Abstract: 100,641. Casanovas, B. F. de, and Rubio y Roger, R. June 9, 1915, [Convention date]. Projectiles fuses.-Consists mainly (1) in improving the transmission of ignition from short timefuses to the explosive charges of shrapnel projectiles. especially of the kind described in Specification No. 8443/15, by covering the end of the timefuse with detonating composition, and (2) in means for making the fuses accurately to length and shape. In the fuse shown in Fig. 3, the time-fuse composition b is ignited by a percussion cap s subjected to the pressure of the gun gases, and transmits the ignition to the explosive charge p of the projectile. At one end of the fuse, and covering the vent holes n, there is a ring o of black powder or of black powder mixed with a small amount of phosphorus, this end of the fuse being covered by a layer of detonating-composition. At the other end of the fuse, there is a charge g of detonating-composition, such as fulminate of mercury, lead nitride, or nitrogen sulphide, covered by a disk of gun-cotton h. This end d of the fuse is arch-shaped, as shown, to strengthen it against premature disintegration while burning, and the fuse body a is constricted intermediate its ends to enhance the effect of the detonation of the detonating charge g in the direction of the projectile charge p. In a modification, Fig. 4, the fuse composition b extends beyond the constriction of the fuse body and is flat-ended, and the detonating- charger g is a compressed plug pressed down against the end of the fuse composition b. To ensure accuracy of dimensions, an excess of fuse composition is first pressed into the fuse body a, which is then placed in a jig j, Fig. 5, over a seat k. where the fuse composition is cut to length and shape by a cutter t. Reference has been directed by the Comptroller to Specification 15941/14.
Patent GB-349669-A (GB)
Title: Improvements in or relating to racket presses
IPC: A63B60/44
Filed: 1930-03-08
Abstract: 349,669. Racket presses. AUKLAND, E., 15, Jewry Street, London. March 8, 1930, No. 7653. [Class 132 (ii).] Relates to a press for tennis, badminton, &c. rackets, of the type comprising two similar press members in the form of frames which are interconnected by suitable clamping means such as screws, bolts or nuts, and consists in forming the press members as trapezoidal frames and providing one or both of these frames with a carrying handle 12, Fig. 1, connected at one end 13 to the shorter parallel side 25 of the frame and connected at the other end to one of the inclined sides 27. In a modification, where one handle only is provided, each end of the handle is divided into two portions, and a portion is attached to each frame. One of the clamping screws 9 may be pivoted so as to turn down. In a further modification, Fig. 7, the press is secured within a case 20 closed by an end cover 21, and the clamping screws 23 are operable from the exterior. Specifications 209,870, [Class 132 (ii), Games], and 263,472, [Class 89 (i), Bolts &c.], are referred to.
Patent GB-431254-A (GB)
Title: Improvements in fusion welding
IPC: B23K33/00
Filed: 1935-03-12
Abstract: 431,254. Uniting by fusion. NAEDER, M., 1, Boulevard de Montmorency, Paris. March 12, 1935, No. 7684. Convention date, March 20, 1934. [Class 83 (iv)] In butt welding by the carbon arc or oxyacetylene blowpipe, U-shaped strips of welding metal are applied to the edges of each of the parts, which are then moved into contact and welding then effected. Hemispherical parts may thus be welded together with strips of ring form as shown in Fig. 2. Similarly tubes may be welded end to end or caps welded on the ends of cylindrical parts. Longitudinal seams of tubes or a series of sheets may thus be butt welded. Instead of using a strip with parallel inner walls, strips with inclined walls 2, Fig. 7, may be used, the parts 3 being filled with flux.
Patent GB-725451-A (GB)
Title: Improvements in oil seals and the manufacture thereof
IPC: B29C35/00
Filed: 1953-03-20
Abstract: In a moulded rubber oil seal reinforced by a metal insert incorporated in the moulding of the seal, the metal insert is provided with a protective coating of synthetic resin applied by coating the insert with a liquid preparation of the synthetic resin which is caused to harden and set prior to the coated insert being incorporated in the moulding.  Thermosetting resins, such as phenol-formaldehyde, urea-formaldehyde and alkyd resins, or cold-setting resins, such as phenol-formaldehyde or other phenolic resin hardened and made infusible by the addition of a catalyst or hardening agent, may be used.  The resin may be applied only to that part of the metal insert which is not covered by the rubber in the moulding.  To improve its adhesion to the rubber, the resin coating may be slightly roughened or given a coating of special adhesive, such as chlorinated rubber cement.
Patent GB-177169-A (GB)
Title: Improvements in or relating to electric cut-outs
IPC: H01H85/30
Filed: 1922-03-16
Abstract: 177,169. Baderna, A. March 17, 1921, [Convention date]. Boxes.-A fuse element may be secured between spring fastenings on a detachable cover to the fuse box which may be engaged by spring circuit terminals within the box. The box is provided with a mica window opposite the indicating portion of the fuse element. Fig. 1 shows a switch box having an extension 1 containing the fuse terminals and provided with a window 3 and a removable cover 2 to carry the fuse element.
Patent GB-492342-A (GB)
Title: Improvements in the suspension of vehicles
IPC: B60G21/04
Filed: 1937-03-17
Abstract: 492,342. Vehicle spring-suspensions. BISHOP, F. C. N., and WHITEHEAD, R. M. March 17, 1937, No. 7777. [Class 108 (ii)] The frame 1 of a vehicle is supported at four ,points, two points, 7, being pivots at the middle of transverse springs 6 and lying in the longitudinal axis of the vehicle, and the other two points 10 being pivots lying on a transverse line and forming part of a differential device permitting the axles to rock, about a longitudinal axis, in opposite directions but not in the same direction. The wheels are carried by triangular members 3 whose bases 4 form the axles and to which the springs 6 are shackled at 8. The pivots 7 support the whole or the greater part of the weight. The inner ends of the members 3 are connected by a spring ring 9 which can swing about the pivots 10 on the frame 1. By resisting rocking of the members 3 in the same direction, tendency of the vehicle to roll when cornering is reduced and undue transference of load from one wheel to another is avoided. In' a modification, the triangular members 3 are replaced by members of T-formation ; and the ring 9 may be replaced by leaf springs which terminate the wheel-bearing members and are inter-connected by cross-bars pivoted to the frame on a transverse line. One of the springs 6 may be pivoted to the axle and shackled to the frame.
Patent GB-1176693-A (GB)
Title: Asbestos Compositions
Inventor: SMITH PERCY LEIGHTON
IPC: C04B26/10
Filed: 1967-02-18
Abstract: 1,176,693. Modified asbestos/polymer compositions. UNION CARBIDE CORP. 18 Feb., 1967, No. 7849/67. Headings C3H and C3P. [Also in Division C1] Polymeric compositions contain as a filler asbestos which has been modified by reacting it with an olefinically unsaturated monocarboxylic acid containing up to 4 carbon atoms, preferably acrylic or methacrylic acid and having a pka of 10<SP>-2</SP> to 10<SP>-8</SP>. Such polymers include unsaturated polyesters and styrene solutions thereof produced from maleic, tetrahydrophthalic, phthalic acids, propylene, ethylene and diethylene glycols; drying oils derived from linseed, castor and tung oil as well as alkyd and urethane resins derived therefrom, unsaturated polyurethanes derived from bis-(2- isocyanatoethyl) fumarate and a polyol; unsaturated polyamides derived from bis-(2-isocyanatoethyl) fumarate and a dicarboxylic acid. The filled polymers having improved mechanical properties are produced by free radical polymerization of a mixture of the unsaturated polymer and the modified asbestos using polymerization initiators and promoters such as peroxides, azo compounds and metallic driers. In an example, a polyester was prepared from maleic anhydride, isophthalic acid and ethylene and diethylene glycol, and containing hydroquinone and tert-butyl catechol as inhibitors. The modified asbestos filler and polyester were then milled in the presence of a benzoyl peroxide initiator and the mixture was then compressed moulded.
Patent GB-526286-A (GB)
Title: Improvements in and relating to incandescent gas burners
IPC: F23D14/12
Filed: 1939-03-11
Abstract: 526,286. Incandescent gas lamps. SUGG & CO., Ltd., W., and SUGG, P. C. March 11, 1939, No. 7948. [Classes 75 (iii) and 75 (iv)] In an incandescent gas lamp for use in a low-pressure gas system, vapour produced by heating water or other liquid, for example in an annular boiler 7, by heat from the burner 8 of the lamp and/or from an auxiliary burner, is discharged into a Venturi 14 or other ejector, and the resultant entraining effect creates a suction effect in the burner chamber on the outlet side of the burner 8. During normal operation, all air for combustion is supplied to the burner 8 through its mixing tube 8<SP>1</SP>. When starting the lamp, secondary air can enter through an opening 20 and pipe 36, and combustion products pass out through an opening 17. Valves 18, 21 controlling the openings 17, 20 are biassed towards their open positions by a weight 35 and lever acting on a spindle 33 which carries them. When the water in the boiler 7 has been heated sufficiently for steam to be generated, some of this steam enters a cylinder 29 and causes a piston or bellows to operate a rod 31 and an arm 32, and so rotate the spindle 33 and close the valves 18, 21. The remainder of the steam passes through a filter chamber 12 and a nozzle 13 to the venturi 14. A safety valve 28 is connected to the boiler by a tube 27. Water is supplied to the boiler through a pipe 10. A non-return valve in the steam-pipe from the boiler may allow this water to enter the boiler when the latter cools. There may be a boiler separate from the annulus 7. After it leaves the venturi, steam may be condensed in a condensation chamber which may be in the lamp standard. The condensation products may be returned to the boiler by a pump which may be operated by pressure from the gas system.
Patent GB-564079-A (GB)
Title: Apparatus for controlling the slide movement in long-bed hydraulic presses
IPC: B30B15/24
Filed: 1943-05-19
Abstract: 564,079. Hydraulic presses. BLISS CO., E. W. May 19, 1943, No. 7957. Convention date, Sept. 26, 1942. [Class 69 (ii)] In a hydraulic press comprising a number of rams 19a, 19b supplied by separate pumps 22a, 22b to operate a platen 16, the latter is maintained in parallel relation with the press bed by transferring liquid from one ram supply pipe to another. The ends of the platen carry racks 63 which rotate shafts having a sliding screw-and-nut engagement 70, 73 connected by a link 61 with the stroke control mechanism of a reversible pump 55 connected between the ram supply pipes. Differential movement of the platen ends starts the pump to transfer liquid from one ram to the other. The screw- and-nut mechanism may be replaced by a differential gear. Distributing valves 26a, 26b controlling liquid supply from the pumps 22a, 22b to the rams are interconnected and normally held in neutral position by a centralising spring 46. The valves may be actuated manually, electrically, hydraulically or by compressed air.
Patent GB-113453-A (GB)
Title: Improvements in Machines for Dyeing and Finishing Textile Fibres.
Inventor: LARIVEL FELICE FRANCESCO
IPC: D06B3/08
Filed: 1916-06-07
Abstract: 113,453. Larivei, F. F. June 7, 1916. Hank type.-In a machine for laboratory use, a dye-vat 1 is divided into separate compartments, over each of which is arranged a roller 8 to carry the fibre. Each compartment has its own inlet and outlet means and separate regulable heating means. The rollers 8 are driven by bevelgears, which may be changed to vary the speed of each roller, from a shaft 9, which is driven through an automatic reversing-gear of the kind described in Specification 26073/13. The vat is mounted on straps 2 passing over pulleys 3 on a shaft 4 operated through worm-gearing 5 by a hand-wheel 7 so as to lift or lower the vat; or alternatively, the frame carrying the rollers 8 may be arranged to be lifted and lowered.
Patent GB-1494793-A (GB)
Title: Preparation of polyamides
IPC: C08G69/00
Filed: 1975-02-26
Abstract: 1494793 Polyamides DU PONT OF CANADA Ltd 26 Feb 1975 [27 Feb 1974] 8073/75 Heading C3R In a process for the continuous preparation of a polyamide wherein an aqueous solution of polyamide-forming reactants (which may have been previously partially polymerized) is continuously fed to an elongated tubular zone of inlet pressure at least 4À2 kg./cm.<SP>2</SP>, and passed therethrough while permitting the pressure to reduce gradually along the zone and progressively flash water into steam while supplying sufficient heat to maintain the temperature above the M.P. of the resulting polyamide, the molten polymer passing to a receiving zone in which a substantially constant level of polyamide is maintained, the flow of molten polymer from the tubular zone is regulated by injecting steam at an intermediate point in the tubular zone so as to maintain a predetermined pressure at such point. The aqueous solution may be of nylon 66 salt or a mixture thereof with caprolactam. In the embodiment shown the tubular zone 14 is defined by the walls of flasher 44; gear pump 40, controlled by the level in polymer finishes 54, transfers partially polymerized solution from receiver 30 of a conventional partial prepolymerization assembly to zone 14, manual valve 45 keeping P 2  close to P 1  Steam, preheated at 48 is injected via valve 50 to a point in zone 14 just downstream of valve 45 to maintain P 3  at a predetermined value, preferably between 60 and 250 p.s.i., thus stabilizing the exit flow to finisher 54 and reducing process lag permitting overall control within narrower limits. Reference is made to Specifications 924,630 and 964,822.
Patent GB-565766-A (GB)
Title: Improvements in or relating to machinery for the manufacture of parts from fusible material
IPC: H01J9/32
Filed: 1943-05-21
Abstract: 565,766. Vacuum tubes. STANDARD TELEPHONES & CABLES, Ltd., and MOSCRIP, W. R. May 21, 1943, No. 8125. [Class 56] [Also in Group XXXVI] Apparatus for sealing conductor wires into the stem of a vacuum tube comprises a hollow die 52 holding the wires 55 which project into the space between the lower ends of the coaxial tubular stem blank 27 and the exhaust tube 51. The die is removably secured to the top of a hollow cylindrical shaft 19 and the die and tubes are rotated simultaneously and coaxially. The ends of the tubes are heated at 30. A roller 58 carried by the upper end of a rod 56 freely supported pivotally at 57 within the die is projected, by raising and inclining the rod, so that it projects into the inner tube 51 and contacts the same adjacent the end to be sealed to the wires and to the other tube. An external roller 69 is also raised and moved into engagement with the outer tube opposite the point of contact of the internal roller with the inner tube, the pressure between the rollers producing the seal. Movement of the rollers into pressing position is derived from elevation of a control rod 47, a ball 71 on which first rotates a lever 63 counterclockwise about its pivot 64 to raise the rollers and then, through a subsidiary lever 67 and a slidable member 70, swings the rollers into engagement with the tubes.
Patent GB-372482-A (GB)
Title: Improvements in or relating to straight-way valves
IPC: F16K3/22
Filed: 1931-03-17
Abstract: 372,482. Stop valves. BENKISER, E., 19, Giesshausstrasse, Ludwigsburg, Germany. March 17, 1931, No. 8152. [Class 135.] In a straight-way stop valve having a closure member h, Figs. 1 and 2, with a convex curved closure surface i adapted to close over inlet and outlet apertures n, simultaneously, in a corresponding curved seating surface, the closure surfaces are formed as segments of a cylinder, or sphere, and are provided with parallel lateral plane guide faces, as shown in Fig. 2. The casing is lined with leador soft metal m, and the closure member covered with indiarubber or lead. The inlet and outlet branches leading from the closure surfaces may be expanded conically in the outward directions, as indicated in dotted lines.
Patent GB-768072-A (GB)
Title: Improvements in or relating to a spring seat and brake beam support for a railway truck
Inventor: MCCORMICK JOHN ANDREW
IPC: B61H13/24
Filed: 1955-03-21
Abstract: 768,072. Railway truck underframes. GENERAL STEEL CASTINGS CORPORATION. March 21, 1955, No. 8184/55. Class 103(6). [Also in Group XXXIV] A railway truck has on each side an equalizer 5, Fig. 3, extending between spaced wheel axle assemblies and carrying springs 8 supporting the truck frame, the equalizer having mounted thereon a pair of brackets 7, Figs. 3 and 4, each bracket having an upper disc-shaped surface 25 forming a spring seat and two spaced guides 27, 28 adapted to receive the end of a brake beam 30 associated with the adjacent wheel axle assembly. Each brake beam 30 is retained in position by a brake lever 31 connected to a beam strut 32 and pivoted at its lower end to a connection 33 and at its upper end to the truck frame or to another brake rod. Two swing hangers 12 carrying a crossbar 13 are pivotally suspended from each side of the truck frame, and the crossbars support the ends of a truck holster 14. In the arrangement shown in Fig. 6, the end portion 46 of the equalizer is extended longitudinally and downwardly and is shaped to mount elements 48, 49 receiving the ends of a brake beam which forms with a brake beam 51 a clasp brake arrangement for the wheel and axle assembly. In another arrangement the equalizer is bolted at each end to the inner side of the associated journal box, a pedestal leg of the truck frame extending along the outer side of the journal box. In a further arrangement the equalizer, spring seat, brake beam and guide elements are all formed in a one-piece casting. The depending lugs of the truck frame extend between portions of the equalizer.
Patent GB-253636-A (GB)
Title: Improvements in or connected with means for connecting elastic pipes
IPC: F16L33/22
Filed: 1925-03-27
Abstract: 253,636. Bechard, E. March 27, 1925. Sleeve joints with yielding outer part compressed.-A rubber pipe 1 is connected to a metal pipe 2 by means of a longitudinally split sleeve 3 which is contracted by a two-part union 4, 5, having internally bevelled flanges 6 adapted to coact with the ends of said sleeve 3. In connecting two rubber pipes 1, 1<a>, Fig. 4, together, the ends of the pipes are threaded over a short junction pipe 2 before applying the split sleeve 3 and two-part union. Reference has been directed by the Comptroller to Specifications 4688/90, 29109/97, 17133/09 and 4538/11.