|Publication number||US2846808 A|
|Publication date||Aug 12, 1958|
|Filing date||Apr 12, 1956|
|Priority date||Apr 12, 1956|
|Publication number||US 2846808 A, US 2846808A, US-A-2846808, US2846808 A, US2846808A|
|Inventors||Hubert Ivester J C|
|Original Assignee||Hubert Ivester J C|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (12), Referenced by (9), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
' DRAWING TABLE TRAY ATTACHMENT Filed April 12, 1956 LL L 44 44b INVENTOR.
3 50 \J-CLHUBER'T IVESTER ATTORNEY United States Patent DRAWING TABLE TRAY ATTACHMENT .1. C. Hubert Ivester, Greenville, S. C. Application A ril 1-2, 1956, SerialNo. 577,794
5 Claims. (CL 45131) This invention relates to attachments for drawing tables to aid the draftsmanor designer and more'particularly to anadjustable tray whichmay be adjustably positioned with respect to the table and the levelof the tray may be adjustedaccording' to the level of the table.
Considerable time and effort is presently expended by draftsmen' and designers in locating. and keeping track of the various drawing instruments and devices such as the instruments themselves, handbooks, erasers, triangles and other aidsto the draftsman. It is necessary for a designer, for example, to make constant reference to various handbooks containing data relating to the material employed which is necessary in the design of structural members from the particular. materials so that-the structuralparts designed may meet the loading and other conditions required. Generally, the table top is tilted upwardly away from the draftsman so that ready access may be had to the work. The necessity for constant reference to hand books and the relatively large number of instruments and other paraphernalia employed by the draftsman and designer makes for confusion and only makeshift eflorts have been employed in the past to efiect a systematic way of maintaining convenient access to all this equipment.
Accordingly, it is an object of this invention to provide a tray which would contain the various paraphernalia of the draftsman so that ready access may be had to these devices and so that the tray could be moved to any desired location with respect to the drafting table.
Another object of this invention is to provide an adjustable instrument holding device for a drawing table which may be particularly adapted to be employed with a drawing table having a tiltably adjustable top so that the tray may be adjustably positioned with respect to the table and the level of the tray adjusted according to the tilted position of the table.
Another object of this invention is to provide an adjustable instrument holding device for a drawing table having a tiltably adjustable top consisting essentially of a trackway adjacent and in alignment with each side of the drawing table. A bracket assembly is slidably carried by each of the trackways, the bracket assemblies extending above the drawing table. v An elongated tray is positioned between each of the brackets. The bracket assemblies include means for tiltably adjusting the tray and means for adjusting the position of the tray with respect to the table.
I accomplish these and other objects of my invention by providing an adjustable instrument holding device for a drawing table having a tiltably adjustable top comprising an elongated member having an elongated, longitudinal slot therein, secured adjacent and in alignment with each of the side edges of the table, a first bracket slidably positioned on each of said members projecting above the table, threadable means carried by said first brackets and slidably positioned within the slots so that the threadable means may be tightened to fit the position of the brackets with respect to the slots, a second bracket pivotally carried by each of said first brackets and an elongated tray ice secured between said second brackets and, threadable means carried by said first brackets permitting tiltable adjustment of the tray, so that the tray may be adjustably positioned with respect to the table and sothatthe level of: the tray may be adjusted to correspondto the, table.
While some of the objects of the.- invention have been stated above, otherswill become apparent to those skilled in the artrelatingto drafting-tables when the specification is read in connection with the accompanying drawing inwhich:
Fig; 1 is a perspective view looking from'the rear of a drafting table having a tiltably adjustable top, and
Fig. 2 isa sectional view takensubstantially along the line 2 2 in Fig; 1.
Referring more particularly to thedrawings, the numeral 10 broadly designates a-draftingrtable-having a rectangular top frame 12 and four legs 14 located atv each of the corners of the: rectangular frame 12. These legs are suitably supported by a pair of parallel side supports 16 and a longitudinalsupport 18. It will be noted that a tiltably adjustabletop 20'is provided for the-table 10-and is pivotedas by the hinges 22 to the front of the table 10-. The rear edge of the top 20' isrnaintained and elevated in an elevated position by the'rod 24 which is pivotally attached to the top 20 as at 26, the lower portion ofthe rod being adjustably secured by passing the rod through an internally threaded sleeve-28-which is suitably secured to the table as-at 30 and providing a threaded member 32 which may be screwed into the sleeve 28 to bear against the rod 24.
It will be noted that a pair of parallel channel members 36 are positioned one adjacent each edge of the table top 20 by securing the flanges 36a to the table as by screws 38. The channel members 36 are each provided with an elongated longitudinal slot 40. These channel members serve as guides or trackways for positioning the various parts of the device to be described below, with respect to the table.
A pair of bracket assemblies broadly designated at 42 are adapted to be slidably carried by the members 36. The bracket assemblies consist essentially of first brackets 44 which project above the table and are provided with inwardly projecting legs 44a having channel portions 44b adapted to engage the channel members 36 carried thereby. The channel members 36 carry threaded elements 46 which are provided with heads 48. Wing nuts 50 are threaded on to the elements 46 so that by tightening the wing nuts the brackets 44 may be held in fixed relation to the channel members 36. It will be noted that the brackets 44 project beyond the edge of the table top 20 so that the edge of a straight edge assembly 45 may pass under the tray 58.
A second pair of brackets 52 are pivotally carried as at 54 by the first brackets and are provided with inwardly projecting flanges 52a to which a somewhat shallow tray 58 is secured as by the screws 56. The brackets 52 are provided with arcuate slots 52b opposite the pivot points 54 and threaded elements 58 are carried by the first brackets 44 and extend through the arcuate slots 52b and are provided with wing nuts 60 which may be tightened to position the brackets 52 with respect to the brackets 44 and thus adjust the level of the elongated tray 58.
It is thus seen that by loosening the wing nuts 50 the tray and bracket assemblies 42 may be adjustedwith respect to the table so that articles held thereby may be conveniently used by the draftsman or designer. By loosening the wing nuts 60 the level of the tray may be adjusted so as to accommodate any tilted position of the table top. It will be further noted that the front portion of the tray is cut away so that the tray may be easily cleaned.
While a preferred embodiment of my invention has been described using specific terms, such description is for illustrative purposes only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the invention as defined by the appended claims.
I claim as my invention:
1. An adjustable instrument holding device for a drawing table comprising a trackway secured adjacent and in alignment with each of the side edges of the drawing table, a bracket assembly slidably carried by each of the trackways, said bracket assemblies extending above the drawing table, an elongated tray carried adjacent the top of the brackets, said bracket assemblies including means for tiltably adjusting the tray and means for adjusting the position of the tray with respect to the trackways.
2. An adjustable instrument holding device as set forth in claim 1, in which said trackways comprise an elongated channel member having an elongated longitudinal slot therein and threadable means slidable in said trackways for adjustably positioning said brackets with respect to the trackways.
3. An adjustable instrument holding device as set forth in claim 1, in which said bracket assemblies comprise an upwardly projecting portion carried by each of said trackways. A second portion pivotally carried by each of said upwardly projecting portions for carrying the tray and threadable means for adjustably positioning said second bracket with respect to said upwardly projecting portions.
4. An adjustable instrument holding device for a drawing table having a tiltably adjustable top comprising an elongated member, having an elongated longitudinal slot therein, secured adjacent and in alignment with each of the side edges of the table, a first bracket slidably positioned on each of said members projecting above the table, threadable means carried by said first brackets and slidably positioned within the slots, a second bracket pivot ally carried by each of said first brackets, an elongated tray secured between said second brackets and threadable means carried by said first brackets permitting tiltable adjustment of the tray, whereby the tray may be adjustably positioned with respect to the table, and whereby the level of the tray may be adjusted to correspond to the table.
5. An adjustable instrument holding device as set forth in claim 4, in which said first brackets are spaced fi'om the edges of the top sufficiently to allow a straight edge to pass and in which the front portion of the tray is cut away to make for easy access in cleaning.
References Cited in the file of this patent UNITED STATES PATENTS 516,425 Beecher Mar. 13, 1894 535,945 Donald Mar. 19, 1895 1,440,993 Hasbrouck, et a1. Jan. 2, 1923 1,477,409 Woolman Dec. 11, 1923 1,767,950 Westbrook June 24, 1930 1,953,026 Scheuer Mar. 27, 1934 2,194,889 De Lisle Mar. 26, 1940 2,223,405 Cain Dec. 3, 1940 2,436,045 Leinheiser Feb. 17, 1948 2,483,920 McLean, et a1 Oct. 4, 1949 2,646,330 Swainbank July 21, 1953 2,768,043 Kristofi, et al. Oct. 23, 1956
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|US516425 *||Jun 2, 1893||Mar 13, 1894||Easel|
|US535945 *||Jan 17, 1895||Mar 19, 1895||Detachable foot-rest and table for beds|
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|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3095835 *||Jun 20, 1961||Jul 2, 1963||Stacy M Smith||Drafting equipment receptacle|
|US3643605 *||Jul 30, 1970||Feb 22, 1972||Miller Russell W Jr||Adjustable tray for worktable|
|US4314407 *||Jan 14, 1980||Feb 9, 1982||Kawahara James B||Drafting board storage tray|
|US4373639 *||Jul 16, 1980||Feb 15, 1983||Tricon Alfred J||Supportive angle holding means and structure clamping means for storage devices|
|US4694967 *||Apr 17, 1986||Sep 22, 1987||Burke Lawrence J||Drafting table accessory storage attachment device|
|US6056129 *||May 19, 1997||May 2, 2000||Ahearn; David J.||Dental delivery platform|
|US8789474 *||Apr 7, 2011||Jul 29, 2014||Sung Yoon Kim||Desk for correct posture and system furniture including the same|
|US9004428||Jun 14, 2013||Apr 14, 2015||Ross McCalla||Serving tray stand|
|US20130019547 *||Apr 7, 2011||Jan 24, 2013||Sung Yoon Kim||Desk for correct posture and system furniture including the same|
|U.S. Classification||108/9, 108/92|