baber/WOPTO huggingface dataset:
Patent GB-307235-A (GB)
Title: Improvements in apparatus for sinking shafts, driving tunnels, headings, sewers and the like
IPC: E21D9/10
Filed: 1928-04-05
Abstract: 307,235. Hardy Patent Pick Co., Ltd., and Walker, C. April 5, 1928. Percussive tools for sinking a shaft or driving a heading are carried on a bar b which can be pivotally adjusted about a member a driven in advance into the face of the working, the bar being clamped by means of screws f. The drill h is carried in a support m slidable on the bar and acts through one of a series of holes d in the bar. Fig. 4 shows another form of carriage for supporting the drill in a holder q provided with a hole x for the drill steel and adjustable on a sleeve r which is itself adjustable on the bar b.
Patent GB-813920-A (GB)
Title: Improvements in cinematograph screens
Inventor: HARKNESS THOMAS SMITH
IPC: G03B21/60
Filed: 1956-04-06
Abstract: 813,920. Coated fabrics. HARKNESS Ltd., A. S. Feb. 13, 1957 [April 6, 1956], No. 10511/56. Drawings to Specification. Class 140. [Also in Group XX] A projection screen comprises a screen base coated with a lacquer containing an ingredient of a lamellar or plate-like crystalline structure having both high refractive index and high reflectivity, said ingredient consisting of bismuth oxychloride. The screen base may be formed of a single strip or of a plurality of strips of fabric or sheet of polyvinylchloride. Advantageously the base should be white and if it is not made from white material it may be coated with a white glass pigment consisting of titanium dioxide mixed in a vinyl chloride/vinyl acetate copolymer binder lacquer. This coating is then covered with several overlapping coatings of the bismuth oxychloride lacquer. Preferably the bismuth oxychloride is mixed with a solution of a colourless resin and this paste is then mixed into a polyvinyl lacquer comprising copolymerized vinyl chloride and vinyl acetate dispersed in ketones and aromatic hydrocarbons. The coatings may be sprayed or applied by roller.
Patent GB-104113-A (GB)
Title: Improvements in Winding Machines for Yarns and Threads.
Inventor: HOLT FRANK ASHWORTH
IPC: B65H63/08
Filed: 1916-07-26
Abstract: 104,113. Holt, F. A., and Kershaw, G. July 26, 1916. Winding-machines.-Relates to drum winding- machines of the kind described in Specification 22812/11 for winding conical cops &c. The conical holder b is mounted in a carrier v which can turn on a pivot y mounted in a bearer r, which turns about the shaft q as the winding proceeds. As the cop increases in diameter and rises, its carrier v may also swivel on the pivot y; but in order to ensure that this swivelling movement shall take place to the extent necessary for winding a perfect cop, an adjustable projection 4, mounted on an arm 6 on the carrier, is caused to engage with a fixed arm or stud 5 projecting from the shaft q. By adjusting the arm 4 upon its pivot 8, the amount of tilting of the holder may be regulated according to the count or thickness of the yarn being wound, the number of yarns being wound upon one holder, or the taper or form of the tubes &c. on which the winding takes place
Patent GB-127242-A (GB)
Title: Apparatus for Playing a Game of Skill.
Inventor: CHAPMAN OTTO
IPC: A63F7/00
Filed: 1919-04-28
Abstract: 127,242. Chapman, O. May 22. 1918, [Convention date]. Table games.-Appliances for playing games comprise a " runner " 6 connected by a cord 10 to winding-drums 1 secured at each end of a table by means of base-plates 3. The cord is guided by eyelets in short standards 8, and the fronts of the plates 3 are recessed to receive the runners. An horizontal bar 17 adjustably supported by two standards 18 may be arranged across the pitch. The runner may be in the shape of the head and shoulders of a man, and may be provided on its underside with a ball bearing to minimize friction with the table In playing a game, one player bowls a celluloid ball so as to bounce beneath the bar 17, and a batsman strikes the ball with a bat. The batsman (or a partner) then winds one of the drums 1 by means of the handles 7 and endeavours to draw the runner 6 across the table before his opponents can secure the ball and strike the runner with it. Instead of, or in addition to, the bar 17, a flat board on which the pitcher must bounce the ball, may be used. Both winding-devices may be arranged at the same end of the table. The winding-devices may be duplicated so that two runners may be moved in opposite directions.
Patent GB-1499392-A (GB)
Title: Photographic cameras
IPC: G03B15/04
Filed: 1975-03-13
Abstract: 1499392 Flash apparatus for cameras EASTMAN KODAK CO 13 March 1975 [13 March 1974] 10547/75 Heading G2A In a camera, the shutter speed setting mechanism is acted upon by a member responsive to the presence of a flash unit in a socket in such a way that when the flash unit is present only one shutter speed can be set. As shown, a shutter blade 16 with an aperture 16a is slidable with the body 14 of a camera 10 on guide pins 18, 19, 20, 21, and is urged to the left by a spring 23. It is held in cocked position by a release member 30. A slidable control member 40, biased to the left by a spring 38, has a projection 40a engaging a projection 44b on a shutter speed setting member 44 which can be set in one of three positions indicated by a shutter speed scale 44a. When the shutter speed setting member 44 is set to the slowest speed, i.e. 1/40 sec, a nose 44a thereof contacts a pivoted, spring-loaded toothed sector 54 in the position shown. When shutter blade 16 is released, it moves leftwards with a pin 36 thereon meets the sector 54 just as the aperture 16a begins to cross the exposure aperture 12. Sector 54 is geared to inertia mechanism 57, so that the blade is slowed down for a long exposure. With the shutter speed setting member at 1/80 sec, the nose 40c is moved to the left rotating sector 54 to a position shown in Fig. 2 (not shown), so that the pin 36 does not contact the sector until the later part of the run-down movement of blade 16. When the shutter speed is set at 1/300 sec, the nose 40c moves the sector 54 into the position shown in Fig. 3 (not shown), in which the blade 16 runs down completely without the pin 36 contacting the sector 54 at all. Lever 46 pivots anti-clockwise when there is no flash unit in place Figs. 2, 3 (not shown), but when a flash unit 51 is inserted in a holder 50, a pin 48 is extended to contact lever 46 and to hold it in the position shown in Fig. 1. In this position it engages an arm 40b of the control member 40, which is thereby held in position for an exposure of 1/40 sec, regardless of the position of the shutter speed setting member 44, as long as the flash-bulb is in position.
Patent GB-116795-A (GB)
Title: Improvements in and relating to Motor Ploughs and Cultivators.
Inventor: GOODE EDWIN JOHN
IPC: A01B63/16
Filed: 1917-07-24
Abstract: 116,795. Goode, E. J. July 24, 1917. Ploughs; cultivators.-A device for automatically raising the frame 1 of a motor plough or cultivator comprises a spiral rib 17 on the inner face of a land wheel 4 mounted on the cranked end 5 of an axle 6. The device comes into operation when a normally retracted transverse rod 15 on the frame is allowed to slide into engagement with the Spiral rib, by which it and the frame are then directly lifted as the wheel 4 rolls over the ground. The frame is retained in the raised position by a tension rod 8 pivoted to an extension 7 of the crank 5 and formed with a notch 11 adapted to engage a fixed pin or stop 12 on the frame. A spring 13 cushions the lowering action when the bar 8 is disengaged from the stop, the descent of the frame being regulated by a stop pin inserted in one of the holes shown in the end of the bar 8. Another arm 40 on the axle 6 is connected by a rod 39 to a bell-crank on the vertically movable trailing wheel 3, so that both ends of the frame 1 are raised simultaneously. The rod 15 is normally he!d retracted by means of a weighted trip lever 19, and when released is pressed by a spring 18 into engagement with the spiral rib 17, its end being provided with a bearing roller 16. As the roller 16 rides off the outer end of the spiral rib 17, it is pushed out of action by an incline 23, the rod 15 then being re-engaged by the trip lever. The raising and lowering device is controlled by the step-by-step rotation of a ratchet wheel 27, Fig. 4, actuated by a lever 28 operated through a cord from the driver's seat. The ratchet wheel 27 carries tappets 30 adapted to withdraw the trip lever 19 at every half revolution, and is fixed to a shaft 26 carrying a cam 32 which lifts the tension bar 8 out of engagement with the stop 12 at each intermediate half revolution. The bar 28 is thus always pulled in one direction by the operator, and alternate quarter revolutions of the ratchet wheel 27 operate to release the trip lever to raise the frame, and the tension bar 8 to lower the frame. According to the Provisional Specification, the tension bar may be operated by an arm thereon, or through intermediate linkages from the trip lever which is directly operated by a cord from the driver's seat.
Patent GB-454601-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H01J29/18
Filed: 1935-04-05
Abstract: 454,601. Cathode ray tubes ; television. WILSON, J. C., 24, Whitworth Park Mansions, Manchester, and BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster. April 5, 1935, No. 10652. [Classes 39 (i) and 40 (iii)] [See also Group XX] In a television &c. cathode-ray tube, and particularly one used to scan a film at a transmitter, afterglow of the fluorescent screen, giving the light spot a comet-like appearance, is reduced by raising the screen to within 10‹ C. of the upper critical temperature at which luminescence ceases. This temperature, below which afterglow increases with decreasing temperature, lies in the range 300- 450‹ C. for screens of zinc orthosilicate, cadmium sulphide or barium platino-cyanide. The screen may be heated by circulating a transparent fluid such as oil or water through a double end-wall of the tube.
Patent GB-570749-A (GB)
Title: Improved means for repairing metal castings, forgings or other bodies
IPC: B23P6/04
Filed: 1943-07-01
Abstract: 570,749. Jointing; repairing castings. SCOTT, L. B. July 1, 1943, No. 10688. [Classes 83 (i) and 83 (iv)] [Also in Group XXV] An elongated body provided with projections to be inserted in a corresponding groove 16 in a cast, forged or other article 10 in order to reinforce or repair it after it has been cracked or fatigued at 13, includes means associated with the side of the body and engaging the bottom of the groove to expand the composite body when this is forced into said groove 16. The main portion 11 of the body may be of the alloy known under the Registered Trade Mark " Invar " or other ductile metal which becomes hardened by working and the expanding means of a harder metal. The main portion 11 may have a number of bulges 17 or recesses 27, Fig. 3, and the expanding means may comprise a wedge 29 or a number of tapered pins 19, Fig. 2. The wedge may have an obtuse apex or a curved upper face 156, Fig. 15, to engage a more sharply curved face 155 of the body 11. Such a wedge may also have parallel or inclined sided projections 66, Fig. 18, to engage recesses in the body 11. If pins are used, these may each have a pyramid 45, Fig. 12, to engage a corresponding recess in the article 10 and a truncated pyramid 46 to engage a somewhat smaller recess 47 in the main portion 11. When used to reinforce a corner 30, Fig. 8, of an article, the outer face 33 is angular and the inner part may be divided up into projections 36, Fig. 7, each engaging a corresponding recess in'the article and containing a tapered pin 19.
Patent GB-455139-A (GB)
Title: Improvements in or relating to gaseous pressure systems and valves for use in connection therewith
IPC: G05D16/18
Filed: 1936-04-06
Abstract: 455,139. Isolating-valves. DEWRANCE, SIR J., 165, Great Dover Street, Southwark, London. April 6, 1936, No. 10696/35. [Class 135] An isolating-valve adapted to isolate the low pressure side of the plant from the high pressure in the event of a predetermined rise in outlet pressure comprises a balanced valve 5, 6 normally maintained in the open position by a spring 11 or weight and detachably connected to a pressure responsive member 9 of larger diameter than the valve loosely fitting in a cylinder. The space above the member 9 is connected to a relief valve 14. Upon undue rise of pressure the relief valve opens and the drop of pressure occasioned by the passage of fluid through the narrow space around the member 9 moves it upward against the spring load to close the valve. The two coned valve members are without guide wings and are assembled with distance pieces 5<a>, 6<a> on a screwed spindle 7 and secured by nuts 7<a>, 7<b>. A lug 13 on a removable closure 12 contacts with the end of the spindle to limit the valve opening. Specification 7967 /90, [Class 135], is referred to.
Patent GB-215369-A (GB)
Title: Improved holder for toilet paper and the like
IPC: A47K10/40
Filed: 1924-05-01
Abstract: 215,369. Bracey, H. E. P. May 1, 1924. Roll holders.- A holder for toilet rolls &c. adapted to prevent pilfering comprises a base 17, Fig. 1, and arms 15 carrying laterally movable male and female members 10, 11, which are automatically locked together by a spring or springs 13 engaging a slot or slots 14, and which cannot be released until the roll is unwound. In a modified form the members 10, 11 are of U-section to reduce the tendency to undue delivery of material. In a further modification the member 11 is flat as shown in Fig. 6 and the member 10 is bent up from a flat blank to the form shown in Fig. 9.
Patent GB-454933-A (GB)
Title: Improvements in heat-insulating containers
IPC: A47J41/00
Filed: 1935-04-06
Abstract: 454,933. Cold and heat retaining vessels ; refrigerators. TURNER & NEWALL, Ltd., Woodland Road, Spotland, Rochdale, and PICKUP, J., Asbestos House, Southwark Street, London. April 6, 1935, No. 10732. [Class 29] Vessels particularly adapted for use in the field in military operations comprise inner and outer metal shells 1, 2, and detachable bottoms 16 spaced apart by slabs of cork 3, 15 or other rigid insulating material, the bottom slabs being separate from the rest so that after removal of the bottoms these slabs and the inner shells may be removed and replaced without disturbing other parts. The bottoms are riveted to angle-iron edge strips 17 which are secured by screws to the outer shells, and the shells may be connected together by removable bolts 14 surrounded by sleeves 13. The upper edges of the inner shells fit against packing strips 18 inside downturned flanges 4 of the outer shells, and leaf springs 6 for holding in place dixies &c. are secured between the shells. The lids 7 are similarly insulated and are provided with webbing &c. gaskets 9. Where cooling of the contents is required compartments for a refrigerant such as solid carbon dioxide may be provided in the lids.
Patent GB-644793-A (GB)
Title: Separating suspensions and the production thereof
IPC: B03B5/44
Filed: 1947-04-22
Abstract: A separating suspension is produced by introducing tail slimings from a separating machine handling coal fines, such as a froth flotation machine, rheolaveurs or upward current separator, in the form of a dilute suspension, under pressure, into a cyclone, the separating suspension containing only particles of relatively high ash content, being discharged therefrom through the apical opening, and the unwanted fraction, containing particles of relatively low ash content together with undesired very fine particles, being discharged through the other opening. The suspension so produced may be further concentrated in another cyclone, or diluted as required. Specifications 528,590, 562,215 and 601,063 are referred to.
Patent GB-667683-A (GB)
Title: Improvements relating to methods of manufacturing discharge tubes
IPC: H01J9/40
Filed: 1949-04-23
Abstract: 667,683. Electron discharge apparatus. FERRANTI, Ltd., and WHITMORE, E. J. April 20, 1950 [April 23, 1949], No. 10816/49. Class 39 (i). A method of manufacturing an electron discharge device, such as a cold-cathode diode, having an envelope 3 of vitreous material, preferably glass, includes the steps of sealing to or through the envelope 3 an exhaust tube 2 of a nickel-iron or nickel-iron-cobalt alloy and sealing the exhaust tube 2 by cold-welding, i.e. making the exhaust tube walls coalesce by applying great pressure while the device is cold. The device after assembly is exhausted through tube 2 and the latter is then heated in vacuo to about 800‹ C., while attached to the pumps to remove oxide and impurities from the inner walls of tube 2. The device is then cooled to room temperature and the end 5 of the tube 2 cold welded by passing it between steel rollers. The exhaust tube may be an electrode or the conductor to and/or support for the electrode. As shown, the tube 2 embodies the anode support and lead and the anode itself, and is surrounded by cathode 1 carried by support 4 of similar material to tube 2 and sealed through the other end of the envelope. The discharge device may be of the vacuum or gas-filled type, and in the latter case the pressure of the gas filling may be greater than atmospheric. The Provisional Specification states in addition that copper and nickel exhaust tubes while suitable for cold-welding do not make satisfactory seals with glass.
Patent GB-136083-A (GB)
Title: Improvements in or relating to Collapsible Tubes.
Inventor: COOK JOHN WILLIAM
IPC: B65D47/20
Filed: 1919-05-01
Abstract: 136,083. Cook, J. W. May 1. 1919. Tubes, collapsible, for liquids, such as blueing for laundry use, are provided with an outlet controlled by a flexible diaphragm having one or more vents adapted to remain closed when the diaphragm is in its normal flat position but to open when the diaphragm is bulged outwardly through pressure being applied to the tube. In the form illustrated in Fig. 5, the diaphragm D, which is shown distended to open a vent E, is formed of rubber and is secured within the'neck C of the rigid head of the tube by a clamping-ring H. A screwed cap may be provided. In a modification, the diaphram is secured by a flanged ring to the outer end of the neck. In another form, the diaphragm is cemented to the inner edge of the shoulder B of the tube. The vents are formed by perforating the rubber without removing any of its material.
Patent GB-547992-A (GB)
Title: Improvements in bench cramps
IPC: B25B5/10
Filed: 1941-08-25
Abstract: 547,992. Bench clamps. MOORE, F. W. Aug. 25, 1941, No. 10840. [Class 61 (ii)] A clamp comprising a vertical post 3 passing through a hole in the bench 1 and provided with an arm 5 carrying a screw 7 and jaw 8 for clamping the work 2 has notches 4 along the post 3 adapted to engage the inner projecting rim 12 of an abutment sleeve 9 secured in a hole in the bench by means of bolts 17 passing through a flange 10 on the sleeve and a lower annular plate 13.
Patent GB-1338695-A (GB)
Title: Methods of forming negative and positve azo dye images
IPC: G03C1/54
Filed: 1971-04-22
Abstract: 1338695 Diazctype processes for producing positive or negative images SCOTT GRAPHICS Inc 22 April 1971 [27 April 1970] 10840/71 Heading G2C Negative dye images are produced by (i) imagewise exposing a material comprising an aryl diazosulphonate and a coupler to light of wavelengths equal to or greater than the absorption maximum of the diazosulphonate to convert the diazosulphonate to a labile form unaffected by such wavelengths (ii) uniformly heating to above 150‹C so that the labile form couples with the coupler and (iii) uniformly exposing to light of wavelengths equal to or greater than absorption maximum of the diazosulphate and also to light of wavelengths equal to or less than the absorption maximum of the labile form so that the remaining diazosulphonate is converted to the labile form which is then decomposed. Negative dye images may also be produced by uniform exposure in step (i) followed by imagewise heating in step (iii) and exposure to wavelengths equal to or less than the absorption maximum of the labile form to decompose any remaining labile form. Positive dye images are produced by uniform exposure as in step (i) followed by imagewise exposure to light of wavelengths equal to or less than the absorption maximum of the labile form to decompose the labile form and then heating to above 150‹F to couple the remaining labile form with the coupler. Positive dye images may also be produced by imagewise exposure to wavelengths as in step (iii) so that the labile form produced is decomposed followed by uniform exposure as in step (i) above to convert the remaining diazosulphonate to the labile form and then uniformly heating to above 150‹C to form the dye image. The light-sensitive layer may be coated on a polyester support subbed with cellulose acetatebutyrate. In the examples, the material is imagewise exposed to wavelengths of 360 nm and above (the absorption maximum of the diazosulphonate developed by heating to 200‹ F. to produce negative image and fixed by exposure to light having at least one wavelength of 300 nm (absorption maximum of labile form) and are wavelength above 360 nm. A positive dye image is produced by uniform exposure to wavelengths above 360 nm, imagewise exposure to 300 nm and development by heating to 200‹F.
Patent GB-638253-A (GB)
Title: Improvements in or relating to x-ray apparatus for measuring the thickness of material
IPC: G01N23/16
Filed: 1948-04-20
Abstract: 638,253. Measuring thickness by X-rays. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 20, 1948, Nos. 10859 and 10860. Convention dates, June 30, 1947, and Sept. 27, 1947. [Class 40 (iii)] Apparatus for determining the thickness of a material 1 by comparing its X-ray absorption with. that of a standard 11, comprises means for transmitting X-rays through each during alternate halfcycles of an A.C. supply 8, on to a fluorescent screen 21 which affects a photo-electric tube 22 of the electron multiplier type whose output thus consists of a series of pulses alternately due to each of the strips 1, 11. Those due to the standard, control the gain of the photo-electric tube, and those due to the test material are measured. As shown, Fig. 1, two X- ray tubes 4, 14 are used and the output pulses of the photo-electric tube 22 are amplified by a tube 42 and applied in parallel to two similar valves' 31, 32 whose auxiliary grids are biassed from a transformer 35 connected to the A.C. supply 8, so that each is rendered non-conductive for one half cycle, the valve 31 being conductive when pulses due to the standard material 11 are received. One dynode 37 of the photo-electric tube 22 is fed from a resistor in the anode circuit of valve 31, so that an increase in the magnitude of the pulse due to the standard material increases the anode current of valve 31 to reduce the voltage on dynode 37, thus restoring the magnitude of the pulses to the original value. A meter 34 in the anode lead of valve 32 indicates the relative thickness of the test material 1. Rectifier 48 short-circuits the input resistor 47 of valves 31, 32 in one direction to give an invariable standard voltage with respect to which the pulses are measured. In an alternative electronic circuit, Fig. 3, the amplified pulses derived from the photo-electric tube 22 are applied via a cathode-follower valve 141 to a rectifier bridge 146-149 fed from the A.C. supply 8 through a transformer, so that a meter 34 on the D.C. side of the rectifier bridge has its reading increased or decreased depending on which of the materials 1, 11 produces the largest pulse, the amplification of tube 22 being controlled by control of the potential of dynode 37 as before, to maintain a constant magnitude on the larger of the pulses. One X-ray tube or two fluorescent screens may be used with a mechanically-operated shutter. The photoelectric tube may be replaced by a Geiger counter or ionization chamber, with the gain control applied externally.