baber/WOPTO huggingface dataset:
Patent GB-251307-A (GB)
Title: Improvements in or relating to lamps for use in producing photographic records of electrical variations
IPC: H01J17/06
Filed: 1924-10-20
Abstract: 251,307. Case, T. W. Oct. 20, 1924. Vacuum tubes.-Discharge lamps for producing photographic records of electric variations produced by sound variations or other means comprise two closely associated electrodes in an ionizable gas such as helium, at least one electrode comprising oppositely disposed portions coated with directly applied alkaline earth oxide and used thus coated as the cathode and not used for coating another electrode as described in Specifications 220,040 and 220,041. In photographing sound variations, the microphone current, amplified one or more times by thermionic valves, is passed through the primary of a transformer the secondary of which is in series with a, source of potential and with the lamp, a moving photographic film being exposed to the cathode glow through a narrow slot. The cathode may comprise a U-shaped platinum filament 16 coated with barium or strontium oxide and the anode a flat plate 15 or a second U-shaped coated filament; in the latter case, the anode may be used as cathode when the cathode coating has been dissipated. Electrons emitted from one portion of the cathode strike the opposite portion, the fluorescent and photo-electric properties of the coating producing a concentrated cathode glow separate from the anode glow. The pressure in the bulb is 20 to 300 mm. of mercury and preferably 50 to 60 mm., and the distance between the anode and cathode is one-sixteenth to one-quarter of an inch and preferably one-eighth of an inch, the lamp operating at low potentials such as 150 volts. In forming the lamp, the platinum strip for the cathode 16 is coated with calcium nitrate and then with a compound of an alkaline earth metal such as barium nitrate, the former preventing reaction of the latter on the strip. The strip is heated in air to change' the nitrates to oxides, the electrodes are assembled in the glass or quartz bulb, the strip 16 is heated by current to drive off moisture from the coating, and the bulb is heated in a furnace to 540‹ C. with a partial vacuum maintained. After cooling, the bulb is exhausted and the plate 15 freed from gas by electronic bombardment on passing a large current through the strip 16, helium then being introduced until the required glow is obtained with a potential source and resistance in series with the tube.
Patent GB-169446-A (GB)
Title: Improvements in sanitary closets
IPC: A47K11/03
Filed: 1921-09-20
Abstract: 169,446. Freshman, S. A. Sept. 24, 1920, [Convention date]. Dry closets; straining-receptacles for.-Relates to closets of the kind in which the faecal matter is liquefied by chemical means. When the seat 9 of the closet is raised a compresser 15 pivoted at 12 is forced down upon the faeces and presses the liquid portion through a grating 29 into a pan containing a suitable liquid. When the seat is depressed by the next user a scraper 17, pivoted at 19, pushes the solid matter into a basket 30. The pivot 19 is carried by an arm 16 attached to the compresser. During the depression of the seat the scraper is held down by the contact of a pin 20 on the arm 18 with a cam 21. When the seat is up the closet is closed by a slide 26 operated by an arm 25 carried by the arm 16. Overflow from the liquefying chamber passes off by a pipe 31, a chamber 32 containing charcoal, and a lateral outlet. A removable door 34 is provided at the back for the removal of the basket 30.
Patent GB-250254-A (GB)
Abstract: 250,254. Krupp Germaniawerft Akt.- Ges., F. April 3, 1925, [Convention date]. Cylinders, arrangement of ports in and shape of ports of.-In a two - stroke - cycle double acting engine scavenging air is admitted to the piston rod end of the cylinder through piston - controlled ports so arranged that the inflowing air shall not foul the piston rod. The scavenging air ports C are disposed tangentially on opposite sides of the cylinder with one set of radial exhaust ports D between them. The charges are guided along an inclined face on the piston and the ports are inclined to follow the slope of the piston face. Alternatively, the face of the piston may be curved. Fig. 3 illustrates an arrangement in which air is directed past the piston rod through ports located in a different plane from that containing the exhaust ports.
Patent GB-767055-A (GB)
Title: Shutter mechanism for photocomposing apparatus
IPC: B41B21/04
Filed: 1954-08-30
Abstract: 767,055. Electronic counting apparatus. TIME, Inc. Aug. 30, 1954 [Aug. 28, 1953], No. 25188/54. Class 106 (1). [Also in Groups XX and XL (b)] A shutter system including a number of shutters each intersecting all of a number of optical paths, each shutter being movable to two alternative positions and having in it a number of apertures each corresponding to one of the optical paths, the positions of the apertures being so related to the points of intersection of the optical paths with the shutter in the two positions that some of the paths are unobstructed by the shutter in one position and the remainder of the paths are unobstructed by the shutter in the other position, is characterized in that the apertures of each shutter are distributed to form a pattern extending over the shutter both along and transverse to the path of movement thereof, the patterns of apertures in the shutters differing so that for each combination of positions of the shutter a different path is unobstructed by the system. The shutter system may be used in a photographic type-composing machine (see Group XX), in which the character selection means can be used to indicate the decimal equivalent of numbers stored in binary code form on a record strip. Alternatively, as shown in Fig. 5, the system can be used in apparatus for converting the output of a binary counter 120<SP>1</SP> to decimal numbers. Pulses 119<SP>1</SP> are counted by means of multivibrator stages 121a<SP>1</SP>, 121b<SP>1</SP>, 121c<SP>1</SP>, &c. Each stage has sections 123a<SP>1</SP>, 123b<SP>1</SP>, 123c<SP>1</SP>, &c. associated with sections 122a<SP>1</SP>, 122b<SP>1</SP>, 122c<SP>1</SP>, &c. which are conducting or non-conducting to represent the digits 1, 0 respectively. When section 122a<SP>1</SP> is conducting, a control device 124a<SP>1</SP> operates a pneumatic ram 127a<SP>1</SP> to move a rectangular shutter 151a from a rest position to an actuated position. A series of shutters 151a, 151b, &c. are slidable in guides such as 160a and each can be operated by its corresponding section of the binary counter 1201. Light from a lamp 142<SP>1</SP> is rendered parallel by a lens 150 and falls on the shutters. Each shutter has a series of apertures 161 arranged in rows and columns with respect to a number of light paths so that a given aperture may be positioned to allow light following the path to pass either in the rest or the actuated position. The arrangement is such that each combination of shutter positions allows light to pass along a different light path through aligned apertures. Further, the light paths are cleared in order as the numbers increase, so that a spot of light formed on a screen 153 moves in lines across the screen. The decimal equivalent of the number indicated by the counter 120<SP>1</SP> can be read by means of scales 154, 155.
Patent GB-379107-A (GB)
Title: Improvements in and relating to remote control installations
IPC: H02J13/00
Filed: 1931-09-08
Abstract: 379,107. Electric signalling and remote control systems. SIEMENS & HALKSE AKT.-GES., Siemensstadt, Berlin. Sept. 8, 1931, No. 25225. Convention date, Oct. 30, 1930. Drawings to Specification. [Class 40 (i).] The selectors used in a remote control and supervisory signalling system are mounted in a casing in which is placed no wiring but that connected to the voltage used for operating the selectors. If the selectors are driven by a motor, the motor is situated outside the casing and is connected to the selector by means of an insulated shaft. Where relays and their contacts are connected to circuits respectively within and without the casing, or vice versa, the relays are insulated from their contacts, the relays connected to wiring within the casing being mounted on, or near to, the outside of the casing to keep the wiring short. An insulating layer is also placed between the windings of the transformers used to connect the signalling circuit with the selectors and to provide the operating current from an alternating current source. The operating relays, transformers &c. may also be fitted in a second casing mounted adjacent to the first casing. The casings may be made either from insulating material or from metal which is well insulated from the devices contained therein, the cases being themselves insulated from each other.
Patent GB-361426-A (GB)
Title: Improvements in or relating to spanners, wrenches and like hand tools
IPC: B25B13/46
Filed: 1930-08-23
Abstract: 361,426. Wrenches. FYFFE & CO., Ltd. and FYFFE, T. L., Riverside Brass Works, Dundee. Aug. 23, 1930, No. 25257. [Class 61 (iii).] A ratchet - operating spanner &c. comprises a head 5 pivoted at 13 to a pair of links 12 to the other end of which is pivoted a socket member 10 carrying the handle and formed with a cam end 11 co-operating with shallow recesses 8 on the back of the head. The handle may be locked to the head by means of a wedge member 15 carried by pivoted arms 17 and adapted to be moved to engage between the cam and wrench head; holes 18, 19, 20 are provided to receive a locking pin for holding the locking member in either position.
Patent GB-629608-A (GB)
Title: Improvements in the processing of photographic materials
IPC: G03C5/38
Filed: 1946-08-26
Abstract: 629,608. Removing fixing agents from photographic material. KODAK, Ltd. Aug. 26, 1946, No. 25433. Convention date, Aug. 27, 1945. [Class 98 (ii)] A sulphur-containing fixing-agent is removed from photographic material by treating the material after fixation with a solution containing alkaline and buffering ingredients selected to maintain the pH of the solution within the range of 9 to 12, and an active oxygen. compound capable of oxidizing essentially to sulphate at 68‹ F. 0.01 gram molecular weight of sodium thiosulphate at 0.1 molar concentration in water per 0.04 gram atomic weight of active oxygen in compound form and thereby develop a total heat of at least 2000 calories within 5 minutes. Active oxygen compounds specified are alkali metal peroxides, peracids and alkali metal salts thereof, alkali metal salts of oxygen acids having hydrogen peroxide of crystallization, and addition compounds of organic amines or amides with hydrogen. peroxide and reaction products of tertiary amines with hydrogen peroxide. Alkaline ingredients specified are ammonium, trimethylbenzylammonium, lithium, sodium, and potassium hydroxides; guanidine; 2-amino-2-methyl- 1: 3-propanediol ; piperazine hexahydrate ; mono-, di-, and tri-ethanolamine; di-isopropanolamine; cyclohexylamine; dimethylbenzylamine; 3-dimethylamino-1: 2-propanediol; mono-, di-, and tri-methyl and ethylamine; ammonium, sodium, potassium, and guanidine carbonates; trisodium, disodium ammonium, diammonium sodium, triguanidine, and guanidine disodium phosphates; sodium metasilicate; disodium p-phenolsulphonate; sodium aminoacetate; trisodium nitrogentriacetate; and ethyl imino-diacetate. Buffering ingredients specified are ammonium chloride, sulphate, phosphate, and acetate; sodium dihydrogen phosphate; sodium bicarbonate and p-phenolsulphonate; monomethylamine, diethylamine, and triethylamine hydrochlorides ; aminoacetic acid; nitrogen-triacetic acid and its mono- and di-alkali metal salts; and methylimino-diacetic acid and its mono-alkali metal salt. In example 1, powder A consists of sodium bicarbonate and potassium bromide, and powder B of sodium carbonate perhydrate. In example 2, powder A consists of ammonium chloride and potassium bromide and powder B of sodium carbonate perhydrate. In example 3, a solution contains sodium pyrophosphate hydrogen. peroxide, ammonium hydroxide, and KBr. In example 4, powder A consists of urea hydrogen peroxide, powder B of ammonium sulphate and potassium bromide, and powder C of sodium hydroxide. In example 5, powder A consists of sodium pyrophosphate perhydrate and powder B of sodium carbonate and KBr. The active oxygen compounds may be stabilized by known means. Higher pH values are used with material having as binder partially hydrolyzed cellulose acetate or acetate-propionate.
Patent GB-1124891-A (GB)
Title: Explosive welding
IPC: F28F9/16
Filed: 1966-06-08
Abstract: 1,124,891. Welding by pressure; jointing by tube expanding. WESTINGHOUSE ELECTRIC CORP. 8 June, 1966 [28 June, 1965], No. 25454/66. Headings B3J, B3Q and B3R. In explosively welding an open-ended metal tube to a metal plate having a planar surface, an opening is provided in the plate in which an end portion of the tube is inserted with the open end of the tube in juxtaposition with the planar surface and an explosive charge enclosed in a body of deformable material positioned in the end of the tube is detonated to weld an annular portion of the tube to the plate. A heat exchanger tube plate 12 comprising a body 17 of mild steel and an outer layer 18 of nickelchromium-iron alloy has openings 13 therethrough receiving open-ended tubes 15 of hairpin shape also of nickel-chromium-iron alloy. The outer ends of the openings 13 are counterbored at 21 and prior to insertion of the tubes the inside of the opening, the counterbore 21 and the tube ends are degreased, wire brushed and blown with dry air. With the tube end slightly beyond the planar surface S of the plate an explosive charge 25 is placed within the tube end with an electric detonator 26 and the charge 25 embedded in deformable filler material 27 of paraffin, polypropylene, polyethylene, nylon etc. The charge of TNT of PETN in disc form is parallel to the plate surface S and when detonated expands the tube end into the counterbore where a weld 29 is effected. The end of the tube above the surface S is explosively sheared away. The clearance between the end of the tube and the bore may be obtained by swaging or otherwise reducing the diameter of the tube end portion. The preparation for all the joints may be made concurrently.
Patent GB-255679-A (GB)
Abstract: 255,679. Gillespies, Ltd., Gillespie, G. U., and Gillespie, P. Sept. 22, 1925. Dampers for ranges &c. are adapted to be operated by the foot. In the form shown, an opening 4 by which the gases pass from the fire to the bottom oven flue is controlled by a damper 9, which slides in a rectangular frame 6 secured by lugs 7, 5a, 5b to the division plate 1. The damper is operated by a pedal 17, pivoted at 16 and connected by a link 18 to a lever 13 which is pivoted at 14 and has at the upper end a pin 15 engaging in a vertical slot 10 in the damper.
Patent GB-285757-A (GB)
Title: Improvements in and relating to clamps for attaching tickets and the like
IPC: G09F3/12
Filed: 1927-09-28
Abstract: 285,757. Siegfried, W. Sept. 28, 1927. Bent-metal-tongue fastenings.-A ticket-clip has a spike 5 placed approximately midway between the end 7 of the free limb 3 and the point of bending 6. The outer end 8 may be flat or arched, and may be bent down before or during application. The link 1 has secured lugs 2 for the ticket 10 and a spike 4.
Patent GB-745760-A (GB)
Title: Improvements in or relating to dampers
IPC: F23L13/06
Filed: 1953-09-17
Abstract: 745,760. Flue dampers. DOWLING, J. N. July 23, 1954 [Sept. 17, 1953], No. 25671/53. Class 51 (1). A flue damper comprises a positively driven flexible roller blind 12 which is adapted to be wound on a storage roller 11 disposed outside the flue 34 and is formed of a plurality of overlapping stainless steel strips secured at one end to the roller 11 and at the other to a movable bar 17. The latter is attached at its ends to steel lifting straps 13 running in guides 18 and secured to bobbins 14 on a shaft 15. Separate electric motors drive through spring couplings 26 the shaft 15 and the roller 11, the former being operated to close the damper and the latter to open it. The starting and stopping of the motor driving the shaft 15 is effected by a switch 35 actuated through a rod 39, Fig. 4, by the bar 17 which, when the damper is in the fully closed position, closes the opening in the flue wall. The strips forming the blind are secured together at their ends only, there being provided within the flue guide bars 32 against which the strips are pressed by the draught thus making effective joints at the overlaps. A roller 33, Fig. 4, assists in straightening out any curl the strips might acquire during storage on the roller 11. Handwheels 29 are provided for manual operation of the shaft 15 and roller 11 when necessary.
Patent GB-906388-A (GB)
Title: Improvements in devices for securing doors in the closed position
Inventor: THOMAS ARTHUR SPECHLY
IPC: E05C3/04
Filed: 1960-07-23
Abstract: 906,388. Turn-button fastenings. THOMAS (ENGINEERS) Ltd., BERTRAM. July 14, 1961 [July 23, 1960], No. 25716/60. Class 44. In a door fastening device a holding member C is mounted on the threaded end of a pin D which also carries lock-nuts f to limit movement of the member C away from the door jamb B. The pin D is rotated by means of a knob d<SP>1</SP> to turn the member C until its end c engages a stop e<SP>1</SP> to prevent further rotation of the member C, the end c<SP>1</SP> of the holding member then lying behind the door jamb B. Further rotation of the pin D causes the member C to move along the pin to draw the door A firmly against the surround B.
Patent GB-190804-A (GB)
Title: Improvements connected with the hoods of charabancs and similar vehicles
IPC: B60J7/06
Filed: 1921-09-29
Abstract: 190,804. Harding, A. J. Sept. 29, 1921. Hoods. - A hood for charabancs &c. comprises a pair of runways supported at intervals by uprights disposed on each side of the vehicle body and slidably supporting the frame members of the hood, the rear pair of uprights having brackets at their upper ends to receive the hood when folded and being adapted to be turned down together with the folded hood. The extremities of lateral frames b carrying the hood a are provided with rollers c running in guides d which are secured to uprights e pivoted at f to brackets attached to the bodv h of the vehicle. To collapse the hood the frames b are pushed rearwards and then collapsed with the rear supports j, the uprights e being turned about their pivots so that the guides d lie outside the vehicle and beneath the doors. Alternatively, the uprights e may slide in vertical sockets. The body may be extended at the rear to form a casing for the folded hood. Specification 190,805 is referred to.
Patent GB-1256182-A (GB)
Title: Sample identification system and apparatus
Inventor: NOEBELS HENRY JOHN
IPC: B01L9/06
Filed: 1969-05-21
Abstract: 1,256,182. Sample identification apparatus: BECKMAN INSTRUMENTS Ltd. 21 May, 1970 [21 May, 1969], No. 25803/69. Heading B1X. Identification of test samples is achieved by sample container racks 11 being releasably engaged upon a tray, e.g. by means of pegs 14, 15, 35 and sockets, arranged so that each rack has only one possible position. The dispenser tray of Fig. 3 holds one of the sample container racks 11 in position 20 and aliquot on test racks 21-30, each aliquot rack being a different colour and each tube in a given aliquot rack being used for the same test. The racks can include visual checking means in the form of a stripe such that when in their correct orientation in Fig. 3 the stripe runs diagonally.
Patent GB-298763-A (GB)
Title: Improvements in spring or snap hooks
IPC: F16B45/02
Filed: 1927-10-04
Abstract: 298,763. Chambers, H., and Robinson,. W. Oct. 4, 1927. Hooks, spring.-Snap hooks are made from one length of uniform gauge wire and the spring arm 1 is formed with a terminal eye 4 by bending the end on itself to engage an inturned end 5 of the hook arm 2.
Patent GB-1247418-A (GB)
Title: Improvements in or relating to a method for improving the useful life of ceramic heating elements by increasing their density
Inventor: BOREL EDOUARD VIRGILE
IPC: H01B1/04
Filed: 1969-05-23
Abstract: 1,247,418. Ceramics. E. V. BOREL, and J. P. BOREL. 23 May, 1969 [7 June, 1968] No. 26410/69. Heading ClJ. The density of a porous ceramic is increased by impregnating with a solution of at least one salt, reacting with ammonia to form a precipitate within the pores and heating to obtain the oxide. Cl 2 ZrO.SHgO in water or alcohol is preferred though at least part of the Zr is replaceable by TiOg, MgO or Al 2 Oy. The impregnation &c. can be repeated. Other impregnants are Al(NO g ) 3 9H 2 0, ZrO 2  or Ti02 in H 2 SO 4 , and CoCl 2 . The porous ceramic is of SiC.
Patent GB-616391-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B15/00
Filed: 1946-09-03
Abstract: 616,391. Handle fixings. COSBY, E. L. H. Sept. 3, 1946, No. 26437. [Class 61 (i)] A brush of the kind wherein the dome-shaped bristle stock 22 is detachably secured in the recessed brush back 1 by a catch 18 on a spring-pressed finger-operated sliding bolt 19 housed in the back engaging with a coacting eye 23 on the underside of the stock has resilient packing 24 interposed between the contacting edge of the stock and the metal liner of the recessed back. Specification 491,297 is referred to.
Patent GB-283300-A (GB)
Title: Improvements relating to adjustable windows particularly for vehicles
IPC: E05F11/38
Filed: 1927-07-19
Abstract: 283,300. Rawlings, E. J. July 19, 1927. Fastenings for sliding windows.-One or more pivoted finger pieces 3 are secured on the sidesof the window frame and have bolt-heads S- shaped to effect a wedging engagement in holes in a vertical plate 10 on the window frame. A spring plunger 9 biasses the fastening towards its operative position. The wedging engagement prevents rattling. Resilient members 11, 13 carried by the lower part of the window and the frame respectively further prevent rattling.
Patent GB-244240-A (GB)
Title: Improvements in or relating to split pulleys and the like
IPC: F16H55/46
Filed: 1924-11-06
Abstract: 244,240. Hamilton & Sons, Ltd., J. and Hamilton, E. Nov. 6, 1924. Securing pulleys on shafts. - The halves of a hollow split metal pulley or the like are drawn together and thereby clamped to the shaft, by one or more U- shaped yoke members h, the arms of which engage. or are connected to one pulley half, whilst the centre or bridge portion is adjustably connected to the other half, the adjusting means being accessible through an opening e in the pulley periphery. The arms of the yoke member may be formed with lugs j, Fig. 1, to engage internal lugs g in one pulley half b, the halves being drawn together on a split bush c, d by a nut m in the peripheral recess e engaging a screwed stud k on the arch of the yoke. Alternatively lugs on the yoke arms may engage openings preferably undercut in the pulley periphery, or the ends of the arms may be formed with drilled openings to fit on to pegs or studs within the pulley half, or pins may be passed through holes in the arms and the cheeks of the pulley half. The yoke member may be lightened and provided with strengthening flanges. The device may be applied to a large diameter pulley as shown in Fig. 9.