baber/WOPTO huggingface dataset:
Patent GB-540971-A (GB)
Title: Production of coloured photographic images
IPC: G03C7/26
Filed: 1940-02-22
Abstract: 540,971. Colour photography. TULL, A. G. Feb. 22, 1940, No. 3340. [Class 98 (ii)] Differently coloured reversed photographic images are produced in the different strata of a photographic emulsion layer or in different layers of a photographic multilayer material by developing latent images formed in the layer or layers, and, without removing the developed silver, converting the residual silver halide in the layer or layers into a silver salt capable of being toned with metal salt solutions to form chemically toned images and toning in a bath containing several toning re-agents each capable of forming a different chemically toned product from the silver salt whereby different chemically toned images are deposited in successive strata of the layer or in the successive layer. If a layer containing a silver ferrocyanide image and a complementary silver image is treated in a toning bath containing a ferric salt and a uranium salt, a Prussian Blue image is formed in the surface stratum and a uranium ferrocyanide image below. In an example, an ortho-chromatic emulsion sensitized to red for part of its depth and containing a red or other dye to prevent blue and green light from reaching the red-sensitized stratum when the element is exposed through the support is exposed and developed, and the residual silver halide image converted into a silver ferrocyanide complex image as described in Specification 540,970. Treatment in a bath containing ferric nitrate, uranium nitrate, nitric acid, and potassium bromide gives an upper blue image and a lower red image. After toning and washing, the silver may be removed with Farmer's Reducer, or with a bath containing potassium ferricyanide, hypo, sodium acetate, and acetic acid, and silver halide with an acid-hypo bath. The process may be applied to material with at least two differently colour-sensitized emulsion layers. Three or more layers or strata may be toned in a single solution, e.g. a solution containing a ferric salt, an uranium salt, and a lead salt gives a top blue image, a middle red image, and a bottom yellow image.
Patent GB-273357-A (GB)
Title: Improvements in and relating to fountain pens
IPC: B43K5/04
Filed: 1926-02-05
Abstract: 273,357. Gunsberg, L., and Feldorf, E. Feb. 5, 1926. Self-filling reservoir pens. -In a reservoir pen, provided at the rear end with a small plunger for the purpose of compressing the collapsable sac, means are provided to enable the plunger to be actuated without removal of its usual covering cap. As shown in Fig. 1, the sac A is adapted to be compressed through the buckling of the strip B, the buckling being effected by pressure on the endpiece C of the strip B. The end of the piece C is engaged by the inner end of a slidable and rotatable push-member D mounted in the cap G. The push member is cut away at one side and is provided with a projection E<1> adapted to engage with a pin F in the cap G to prevent withdrawal. The end of the push-member normally abuts against a projection E on the end of the barrel to prevent accidental operation. When the pen is to be filled, the cap G is rotated slightly and carries the member D with it until its end is free of the projection E. In the form shown in Fig. 3, a cam K is pivoted in the cap G and serves to actuate the strip B. According to the Provisional Specification, the strip B is accommodated in a channel in the wall of the barrel so as to enable a larger sac to be employed,
Patent GB-178954-A (GB)
Title: Improvements in electric burglar alarms
IPC: G08B13/22
Filed: 1921-01-28
Abstract: 178,954. Alarm Ges. fur Einbruchsichere Anlagen, and Bachmeyer, A. Jan. 28, 1921. Inertia switches; electromagnetic switches. - In a burglar alarm system a relay g closes the circuit of an alarm-operating relay, when the current through it is interrupted or strengthened. As shown in Figs 1 and 4, the armature i carries contact springs A, B, m, n of which the springs A, B cooperate with contact screws C, D and the springs m, n, with the screws o, p. The armature i is normally maintained in its neutral position by the engagement of the spring k against the screw l. A pendulum switch, as shown in Fig. 6, and used in the system, is attached to a network arranged to cover a wall, ceiling, &c. and consists of a ball 15 suspended by a spring 14 in a casing 6. The circuit is normally closed through a resistance 7, but when the switch is oscillated the ball 15 contacts with the casing 6 thus cutting out the resistance 7 and strengthening the current in the relay g.
Patent GB-326940-A (GB)
Title: A new or improved method of treating water-absorbing materials to render them non-absorbent, acid-resisting and alkali-resisting
IPC: C09D107/00
Filed: 1929-02-02
Abstract: 326,940. Morris, H. N. Feb. 2, 1929. Waterproofing; proofing-compositions; single coatings; compound sheet materials.-Waterabsorbent materials are rendered non-absorbent, acid-resisting and alkali-resisting by treating them with a common solution of rubber and one or more salts of cellulose in one or more of the volatile hydrogenated products of aromatic hydrocarbons or their hydroxy compounds or ketones or isomers or esters, with or without other volatile or non-volatile solvents or softening media, for example such solutions as are described in Specification 274,968, [Class 70, Indiarubber &c.]. The proportions of rubber and cellulose derivative may vary, but a proportion of 90 per cent cellulose and 10 per cent rubber is suitable for most materials. The material to be treated may be first dried and then painted or sprayed in one or more operations, or it may be impregnated with a hot solution in the case of articles of pressed paper, cardboard or other fibrous material, or wooden articles. The operation may take place at anv temperature below the boiling point of the solution, which may be varied as described in Specification 274,968, [Class 70, Indiarubber &c.]. Pressed paper tubes, wooden articles, paper for wrapping cables, small tiles, and other small articles are impregnated at a temperature a little above the boiling point of water. Wooden buildings or parts thereof may be sprayed or painted. The material may be first treated with a dilute mixture of the solution with a volatile diluent such as a hydrocarbon or hydrogenated hydrocarbon or mixture of hydrocarbons, hydrogenated hydrocarbons, butyl or other alcohol or ester, and acetone. After drying, a second treatment may be given. The first diluted solution may be mixed with a dry pigment, paint, or powdered mineral such as white or red lead, zinc oxide, or lithopone. In treating cement or concrete flooring, the solution may be emulsified with water. using bitumen, tar, creosote or oleic acid, and the emulsion used for mixing the concrete. In treating paper, cardboard or strawboard, the material may be treated on one side only by brushing or spraying or it may be passed through a tank of the solution and between rollers which may be heated. The solution may be mixed with china clay, fullers' earth or bitumen, and paper coated with the mixture, or two sheets pressed together with the mixture between, to make waterproof wrapping paper. Cloth or netting may be attached to the coated paper. Building materials, stone, bricks, tiles, slates, or asbestos cement tiles may be treated by immersion in or painting with the solution. Specifications 274,968, [Class 70, Indiarubber &c.], and 275,304, [Class 95, Paints &c.], are referred to.
Patent GB-128868-A (GB)
Title: Improvements in Scaffolding.
Inventor: MCLEOD DONALD
IPC: B63C5/02
Filed: 1919-02-13
Abstract: 128,868. McLeod, D. Feb. 13, 1919. Scaffolding.-An adjustable and hinged platform is provided in scaffolding especially for ship construction. To the transverse members 3 of the frame work 1, 2 are attached angle-irons 4 extending to or just past the uprights and similar angle-iron members 9 are hinged thereto by means of a bar 6 and spacer 7 which may be integral therewith. The spacer and angle-iron 9 are bevelled to :form an horizontally butting hinge. The flange 11 affords a surface for the planking. To provide for broader platform the member 9 is fixed to the frame and the longer angle-iron 4 is used for the platform.
Patent GB-301247-A (GB)
Title: Improvements in or relating to polish and like tins
IPC: B65D43/26
Filed: 1928-02-06
Abstract: 301,247. Nornable, W. H. Feb. 6, 1928. Lids. - A sheet metal lever 1 of right-angled form, pivotally mounted by trunnions 3 in bearing holes 6 in a housing 4 secured to the body part 5 of a tin serves, when depressed, to raise the lid 2, Fig. 5 shows a modified construction in which the lever acts upon a strip 8 of tape or other material passing from the inside of the tin between the lid flange and the rim.
Patent GB-1137835-A (GB)
Title: Improvements in or relating to dismantlable skeleton frame structures
IPC: F16B12/50
Filed: 1966-01-26
Abstract: 1,137,835. Joining metal members. R. FRANCON. 26 Jan., 1966 [28 Jan., 1965; 24 Dec., 1965], No. 3603/66. Addition to 967965. Heading E1K. [Also in Division A4] In a frame structure two angle section bars I are bolted together with a junction plate 6 interposed between overlying webs of the bars, the junction plate and the bars having ribs and grooves on opposite faces which interengage, and the plate being usable in a left hand or a right hand corner of the structure. The ribs on one limb of an an angle section may be on the outside face and the ribs on the other limb of the same section may be on the inside face as shown in Fig. 1 and the plate 6 then has ribs and grooves on both faces; or the ribs may be on both outside faces of the angle bar (Fig. 9) and the plate 6 then has grooves on one side and ribs on the other. The plate may be polygonal or in the form of washers (Figs. 6, 7, 8) or triangular (Fig. 14). The plate may have only two intersecting grooves and the grooves may be oriented at 60 or 90 degrees.
Patent GB-945272-A (GB)
Title: A method and system for recording repetitive seismic signals
IPC: G01V1/38
Filed: 1962-01-31
Abstract: 945,272. Geophysical prospecting. SOCONY MOBIL OIL CO. Inc. Jan. 31, 1962 [Jan. 31, 1961], No. 3762/62. Heading H4D. A method of seismic exploration comprises moving a source and detector of seismic waves in predetermined space relation along a traverse, periodically actuating the seismic wave source, detecting in each time interval between the pulses the ensuing seismic waves, recording seismic signals representative of the seismic waves so as to store serially a family of signals indicative of the locations of seismic reflecting interfaces underlying the traverse, discontinuing recording and synchronously reproducing the family of signals in the order in which they were recorded, and recording in juxtaposition a visual representation of the family of signals to provide a graph of the locations of the reflecting interfaces. In the general arrangement described a boat carries a gaseousdetonation seismic wave generator 10, Fig. 1, which is actuated under the control of a pulser 43 synchronized with the rotation of a motor 30 itself synchronized in speed from a master oscillator 31 1000 c/s. signal; the output of the latter, together with voice announcements of boat position, is recorded on one track of a magnetic tape 50, the tape recorder motor 62 also being controlled from oscillator 31. The seismic wave signals from detector 13, streamed at a constant depth behind the boat, are applied (1) to the second track on tape 50 and (2) directly, or via compositor 22, to the recording electrode of chart recorder 24. The signals for the magnetic recorder are applied via an F.M. modulator 53. Compositor 22 may be a " delay drum " type in which signals first appearing at the output of amplifier 21 are temporarily recorded and are then added to subsequently occurring signals. At a subsequent time and place, the magnetic tape is played back, Fig. 2, and after demodulation the seismic signals are applied directly or via a compositor 105 to a chart recorder 108 and the 1000 c/s. timing and the voice signals are applied (1) to synchronize motor 115, after filtering the timing signals, and (2) to a loud-speaker 122. In a further arrangement compositor 105 comprises a revolving drum with a recording head and a plurality of equi-spaced reproducing heads with their outputs in parallel, the drum motor and a chart recorder drum motor being fed with the same current, of frequency determined by a multivibrator, which is freerunning at 995 c/s. and synchronized to give 1000 c/s. pulses from the 1000 c/s. timing signal; a 1000 c/s. R-C filter is utilized to separate the timing signal from the voice + timing signals and to remove the timing signals from the voice signals ; the chart recorder recording head is moved longitudinally by gearing down from the chart drum motor drive; and a cathode-ray oscilloscope monitor of timing and multivibrator signals is provided, Fig. 3 (not shown).
Patent GB-638069-A (GB)
Title: Improvements in and relating to presentations for radar and like systems
Inventor: CARTER RONALD HERBERT ARTHUR
IPC: G01S1/02
Filed: 1947-02-08
Abstract: 638,069. Radiolocation ; pulse generating circuits. MINISTER OF SUPPLY. Feb. 8, 1947, No. 3776. [Classes 40 (vi) and 40 (vii)] In a radar cathode-ray tube presentation system of the type in which signals are displayed on a two-dimensional raster, such as a planposition display, an electronic circuit generates a brightening wave when a displayed dimension other than range assumes a predetermined value, the wave lasting for the duration of a single sweep only so that the dimension is identified with a high degree of resolution. Fig. 2 shows an "azimuth-marker generator" for a plan-position display. Each of the valves V1, V2 is connected in a trigger circuit having two table states. The normal tube blanking waves of duration equal to the radial sweep are applied at A and differentiated by C2, R17 to produce a positive and a negative pulse at the beginning and end respectively of each wave. These pulses applied to V2 may trigger the stage between the two stable states, whereby a positive square wave generated across the screen load R16 appears at C and is applied to the cathode-ray tube as a brightening wave. The differentiation pulses are however normally ineffective due to the suppressor of V2 being held at the potential appearing across R7. To condition V2 to become responsive to the pulses V1 is triggered causing an increase in space current and a corresponding increase in potential across R7. The control of V1 is through a switch S comprising a pair of contact elements, one of which rotates with the aerial shaft to contact once per revolution with the other which is adjustable in position in a circular guide surrounding the shaft. When S closes a condenser C3 discharges and applies a negative pulse to the suppressor grid of V1 to trigger the stage whereupon the potential across R7 rises and with it that of the suppressor grid of V2. The next positive differentiation pulse after the closure of S then triggers the V1 stage and a brightening wave appears at C. Due to the coupling C5, R21 between V2 and V1, when V2 is triggered back to normal by the following negative differentiation pulse, V1 is also returned to normal and the potential on R7 and the suppressor grid of V2 falls. Suscessive differentiation pulses until the next closure of S are therefore ineffective and accordingly only a single brightening wave is generated causing a single radial sweep to be intensified. The position of the intensified sweep in azimuth is predetermined by setting the adjustable contact of S.
Patent GB-1407334-A (GB)
Title: Heating assembly regulation
IPC: G05D23/24
Filed: 1973-01-25
Abstract: 1407334 Fixing electrostatic toner images XEROX CORP 25 Jan 1973 [27 Jan 1972 17 March 1972] 3792/73 Heading G2H Powder toner images transferred from a photoconductive member to a copy web are fixed on the web by heating lamps (or by an oven, hot air source or heated roller) actuated intermittently as selected portions of originals are projected on to the photoconductive member and developed to give toner images which are transferred to contiguous positions on the irregularly moved copy web. The heating lamps are actuated, on receipt of a signal with an amount of energy which is a function of the measured time since the previous actuation and of the cooling characteristics of the lamps, so that the toner images receive an even heating irrespective of the irregular movement of the copy web. Circuitry which senses the occurence of a series of actuating signals, and measures the intervals between them, is described.
Patent GB-392294-A (GB)
Title: Improvements in or relating to valve mechanism for internal combustion engines
IPC: F01L1/46
Filed: 1932-02-09
Abstract: 392,294. Valve mechanism. SHORT, A., Mill Court, Ashford Road, Bearsted, near Maidstone, SHORT, F. S., King's Head Hotel, Rochester, (Representatives of Short, A. E.), and SHORT, H. O., Seaplane Works, Rochester, both in Kent. Feb. 9, 1932, No. 3833. [Class 7 (vi).] In means for loading tappet-operated valves by fluid pressure, the valve stem 10 is connected to an annular piston 17 sliding between concentric cylinders 14, 15, to the space 16 between which compressed air is supplied from a reservoir past a non-return valve 31 and a regulating - valve 30. If a constant loading pressure is required to be maintained, the non-return valve is replaced by an expansion chamber the volume of which is large in comparison with that of the space 16. In aircraft, the regulating-valve is under the control of the pilot. The several valves of the engine may be arranged in series along the air-pressure conduit 28. The piston 17 is formed with wings or extensions 22 sliding through slots formed in the cover 20 of the outer cylinder 15, these extensions being screwed to a plug 23 and to a cap 24 engaging a slotted cotter 25 provided in a grooved portion of the valve stem. Specification 129,729, [Class 7 (vi), Internal-combustion engines, Valves &c. for], is referred to.
Patent GB-212063-A (GB)
Title: An improved adjustable seat for motor vehicles or for other purposes
IPC: B60N2/04
Filed: 1923-02-09
Abstract: 212,063. Auster, Ltd., and Auster, A. C. Feb. 9, 1923. Seat adjustments.-A seat, particularly for use in vehicles, and having an adjustment in both the horizontal and vertical directions is supported by or suspended from links at one edge, and at the opposite edge is supported on a stepped or notched rack. In the form shown in Fig. 1 the seat is suspended at its rear edge by links 3, attached to supports 5 or to the vehicle framing at their upper ends, while pins 6 near the front edge of the seat engage notches 7 in a supporting member 8 secured to the floor. The arrangement of notches is such that the seat, after adjustment, is maintained in a position substantially parallel to that originally occupied. Alternative constructions are described, in one of which the notched rack is carried by the seat, and in another the links are below the seat and are pivoted to the floor. According to the Provisonal Specification, an inclined slot may replace the steps or notches in the fixed member, the seat being held in position by fly-nuts mounted on the projections which engage the slot.
Patent GB-432912-A (GB)
Title: Improvements relating to continuous feed cinematograph apparatus
IPC: G03B41/08
Filed: 1934-02-06
Abstract: 432,912. Kinematograph apparatus. RYLAND, H. S., 257, Bromley Road, Catford, London, and HODGKIN, J. E., Dryderdale, Witton-le-Wear, Co. Durham. Feb. 6, 1934, Nos. 3916 and 14676. [Class 97 (i)] In continuous-feed apparatus wherein compensation is effected by a ring of collective lenses rotating about an axis transverse to the objective, and so that the compensating lenses pass between the objective and the film, the film, is flat while in the gate, the lenses pass in one direction only between the film and the objective, and the ratio between the linear speeds of the lenses and of the film is equal to that between the distances of the rear principal point of any of the collective lenses and of the film from the principal focus of the objective alone ; the collective lenses may be chromatically uncorrected, the objective being over corrected, and a low-power collective or dispersive lens may be adjustable in front of the film to vary the power of the collective lenses. As shown, meniscus collective lenses 12 are carried by brackets 22 fixed to a disc 17 rotatable about a tubular spindle 20 by a belt 26 and pulley 19 ; radial partitions 56 are secured to the disc between adjacent lenses. The lenses pass in one direction between a focusable objective 10 and a gate 28. The film 30 passes to the gate over a roller 40, is drawn through the gate by a sprocket 32 secured to a gear wheel 34 driven by internal teeth 36 on a ring secured to the disc 17, and passes to the take-up spool over a roller 42. The diameters of the wheel 34 and the ring are such that the ratio stated above is obtained and, in the construction shown, the ratio equals 2. If the apparatus is a projector, the film is illuminated by light reflected by a plane metal mirror 50 into the tube 20 from a lamp house 44, and through the film by a mirror 52. The lamp house may be in line with the tube 20, the mirror 50 being omitted, or may be within the lens ring. The film gate may be outside the lens ring, its plane being turned through a right angle, and a prism or mirror reflecting the image beam through a right angle may be provided within the lens ring. According to the first Provisional Specification, two such mirrors may be provided to avoid lateral reversal of the image. According to the second Provisional Specification, a framing roller may be provided between the gate and the feed sprocket.
Patent GB-1027504-A (GB)
Title: Improvements in and relating to electric welding
IPC: B23K28/02
Filed: 1963-01-31
Abstract: 1,027,504. Welding by fusion. UNION CARBIDE CORPORATION. Jan. 31, 1963 [Feb. 5, 1962; June 26, 1962], No. 3942/63. Heading B3R. In electric welding, a consumable electrode is maintained in continuous short circuiting contact with the weld pool. The resistance heating of the electrode by the passage of welding current may be supplemented by heating of the work by arc, flame, induction or radiant heat. Current is supplied to a consumable electrode 5 (Fig. 1, not shown) by an A.C. or D.C. supply H through a contact guide which is spaced at a substantial distance from the work P to provide sufficient resistance heating of the electrode 8. An inert gas, e.g. argon or helium, is passed through a nozzle N. In a modification an inert gas shielded non-consumable electrode is used to fuse the work and the consumable electrode is fed into the weld pool behind the arc. In a further modification (Fig. 3, not shown) a constricted arc torch having an electrode E<SP>1</SP> that is water-cooled or of a refractory material is used to fuse the work. Argon, helium or argon-hydrogen mixtures are passed through the constricting nozzle N<SP>1</SP> and a shielding gas containing one or more of argon helium, nitrogen and carbon dioxide is fed through a surrounding nozzle 18. The process may be used for jointing or cladding. Aluminium, magnesium and ferrous metals such as stainless steel may be so welded.
Patent GB-637211-A (GB)
Title: Installation for use in steaming fabrics
IPC: D06B17/06
Filed: 1948-02-11
Abstract: <PICT:0637211/IV (c)/1> An installation for use in steaming fabrics includes a steaming vessel a for the accommodation of the fabric being treated, steam distribution piping k within the bottom of said vessel for the admission of steam into the vessel, an outlet for the removal of contaminated vapour from the vessel, an evaporator d connected to said outlet, a vapour drier e receiving vapour from the evaporator and a steam-energized thermo-compressor g arranged to extract the vapour from the drier and to deliver it to the distribution piping within the steaming vessel, and a heat exchanger r arranged to receive excess contaminated vapour from the steaming vessel under the control of an automatic valve q.  The inlet and outlet of the vessel a may be sealed by pairs of revolving rollers b.