![]() 9 is a side view of the second embodiment shown in FIG. 8 is a top view of the second embodiment shown in FIG. 7 is a side view of the drawing tablet according to the embodiment of FIG. 6 is a perspective view of a drawing tablet, according to a second embodiment of the present disclosure įIG. 5 is a detailed diagram showing rollers and knobs of the embodiment shown in FIG. 4 is a detailed diagram showing support rails and roller supports of the embodiment shown in FIG. 3 is a detailed diagram showing a drawer latch assembly and handle of the embodiment shown in FIG. 2 is a detailed diagram showing a drawing frame, a face plate, and a drawer in the drawing tablet of the embodiment shown in FIG. 1 is a perspective view of a drawing tablet, according to an exemplary embodiment of the present disclosure įIG. The aforementioned and other aspects, features and advantages can be more readily understood from the following detailed description with reference to the accompanying drawings wherein:įIG. In another aspect, dive information (such as a dive safety check list, dive plan, dive log, etc.) can be pre-recorded on the plastic vellum sheet. In another aspect, the writing or drawing tablet can include a writing implement (such as a woodless graphite drawing pencil) attached thereto (for example, via a lanyard, a flexible holding tube, etc.), and a storage member for the implement is provided in the tablet. In another aspect, the writing or drawing tablet can be made of one or more materials that are resistant to corrosion and/or impervious to salt water and intensive exposure to sunlight. ![]() In another aspect, the writing or drawing tablet does not retain air in the underwater environment and does not retain water when removed from the underwater environment. For example, the tablet is configured to have a negative buoyancy at depth of about 50 feet. The tablet is configured for use underwater or in any extreme environment. Such mechanism grasps the vellum when the vellum is loaded on the roller and maintains a consistent tension on the vellum between the rollers, to maintain a flat writing surface while preventing the vellum from becoming disengaged from the rollers during use. BRIEF SUMMARYĪccording to an aspect of the present disclosure, a writing or drawing tablet is provided comprising first and second rollers, a plastic vellum sheet rolled around the first and second rollers, and tension adjustment mechanism configured to maintain a consistent tension in the vellum sheet when the vellum is loaded on the roller. The compact note scroll proposed by Zelenko is simply not suitable for the underwater environment. Although Zelenko proposes that the paper can be replaced by coated flexible plastic, so that writing on the strip can be easily erased by rubbing with a cloth or the like, writing on the plastic would readily fade, dissolve or otherwise be removed from the plastic, when under water. Use of a compact note scroll configured with a base on which a pair of rotatably mounted shafts carry an elongated strip of paper, an intermediate portion of which is accessible through a window aperture in a case which covers the base, is proposed in U.S. Multiple page slates also cannot be reused until all previous work has been erased. Use of multiple pages of waterproof material on a clipboard underwater is awkward because in the marine environment the pages can stick together and are difficult to manipulate especially if the diver is wearing gloves. Use of electronic equipment is expensive and often vulnerable in the underwater environment. In urgent situations this erasing time can be inconvenient. ![]() When the slate is full, new writing can only be added by erasing all previous work. Hand signals can be confusing and are limited in what they can communicate.ĭive slates are limited in the amount that they can record by the size of the slate. In addition, the diver may desire to record notes, to aid in gathering reference material, architectural drafting for marine construction, artistic rendering, etc.Ĭonventionally, most underwater communications are accomplished with hand signals, dive slates and/or electronic instruments. For example, a diver may need or wish to communicate with other divers. There are many reasons a scuba diver may need to write or draw underwater. The present disclosure relates to submersible writing/drawing tablets suitable for an underwater or any extreme environment. 7,731,501) is a divisional of application Ser. 7,264,477, which claims the benefit of U.S. 4, 2007 which in turn is a continuation-in-part of U.S. This disclosure is a continuation-in-part of U.S.
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