Патент USA US2128863код для вставки
Aug. 30, 1938. . A.4 TURRIAN ì - 2,128,863 ELEVATION AND SLOPE _INDICATOR ì Filed Jan. 51., 1938 ATTO RN EYS 2,128,863 Patented Aug. 30, 1938 .UNITED sure PATENT OFFICE 2,128,863 . ELEVATION AND' SLOPE INDICATOR Arthur Turrian, Schenectady, N. Y. Application January 31, 1938, Serial No. 187,945 3 Claims. (C1. 33--70) The invention relates to a measuring instru ment and more especially to an elevation and slope indicator device. The primary object of the invention is the pro 5 vision of av device of this character, wherein the same is compact and when not in use is foldable to occupy minimum space so that it can be car ried in the pocket or otherwise and when un folded for use can be supported perpendicularly 10 upon a stump, stick or other like support so that elevations and slopes can be measured with a degree of accuracy. ' Il! is fixed the horizontal arm of a substantially L-shaped bracket I3, its vertical or upstanding right angular arm to the horizontal is adapted to have detachably coupled thereto as at I4 a` bearing extension I5 which carries a pivot I6 removably and swingingly connecting theretoV a skeleton scale, frame il. This frame includes an intermediate web I8, a lower sector edge portion I9, a straight upper edge portion 20 and outer straight edge end portions 2| and 22, respec 10 tively. Following the sector edge portions I9 and at Another object of the invention is the provision the outer exposed side of the frame I1 is a degree of a device ory instrument of this character, scale plate 23 while suspended close to the upper 15 15 wherein measurements or heights, distances straight edge of the portion 2U of said frame I1 traced and leveling obtained as well as slopes or and hung therefrom at 24 is a plumb cord 25, this inclines are had, the device being adaptable for -being removable from the frame I'I and at its use by architects, builders, foresters, teachers, lower end carries a plumb bob or conical weight 26, the cord or line 25 being adapted to confront Vsurveyors or the like. the scale plate 23 and coact with the graduations 20 A further object of the invention is the provi 20 sion of a device or instrument of this character, or degree marks 21 thereon in the use of the in strument or device. The bob or weight 26 is of which is simple in construction, thoroughly reli able and eflicient in operation, light in weight course free from contact with a foundation or yet strong, durable, susceptible of easy- adjust ‘ devoidV of any dragging contact with an object beneath its point 29 when the instrumentl or 25 25 ment and inexpensive to manufacture. device is in use for accuracy in the Working With these and other objects in View, the inven- ' tion consists in the features of construction, coin bination and arrangement of parts as will be thereof.` hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention and nected with an aim shelf or ledge 3| which has pointed out in the claims hereunto appended. In the accompanying drawing: Figure 1 is a perspective View of the device 35 or instrument constructed in accordance with the invention and anchored in a support for use. Figure 2 is a rear elevation thereof. Figure 3 is a Vplan View showing the device folded. Figure 4 is an edge View of the device folded. 40 Figure 5 is a diagrammatic elevation showing the device set for determining the height of an object with respect to a level. Figure 6 is a plan View of a degree and per 45 centage table for use in measuring work in the use of the device or instrument. Similar reference characters indicate corre sponding parts throughout the several views in the drawing. Referring to the drawing in detail, the instru 50 ment or device comprises an anchoring blade or staff I0 having at its lower end a penetrating tip I I to be driven into a stake or other upstand ing support I2 when the instrument or device is 55 in use. At the upper end of the blade or staff The frame 2| at the straight edge of the por tion 2|) carries hinges 30, these being also con 30 an elongated longitudinally directed center open ing 32 while at opposite ends are aim ridges 33, the shelf or ledge 3| being foldable downwardly and inwardly against the frame 2| when not in 35 use, the hinges 39 being for the purpose ofallow ing the folding and unfolding of said ledge or shelf. Carried by the frame 2| at its rear is a foldable prop or bracket 34, being hinged at 35 to said frame 2| for the folding of the same and this proper or bracket‘ßll supports the ledge or shelf 3| when unfolded and at right angles to the frame 2|. In Figure 5 of the drawing there is shown an example of the use of the instrument for deter 45 mining the height of an object denoted at 36, the instrument being set up for this purpose as at 31, While in Figure 6 is shown a table 38 with degree and percent indicia as at 39 and 40, respectively, being usable with the instrument -for calculation 50 with the scale 2l on a reading thereof in associ ation with the plumb cord or line 25 through adjustment of the aim ledge or shelf 3|, the table 38 being of tangents and involves degrees thereof and decimal percentages. 55 V2- ‘ 2,128,863 What is claimed is: 1. An instrument of the character described comprising an anchoring staiï, a bracket carried by said staff, a sector frame having a segmental the shelf to hold the same against folding move said bracket for separable connection therebe tween, a, foldable shelf carried by the frame, a comprising an anchoring staff, a bracket carried ment, a plumb bob hung from said frame and coacting with the scale, and aim ridges at oppo site ends of said shelf. scale, a pivotal coupling between the frame and Y 3. An instrument of the character described swinging prop on the frame and coacting with the shelf to hold the same against folding move 10 ment, and a plumb bob hung from said frame and coacting with the scale. 2. An instrument of the character described comprising an anchoring staiî, a bracket carried by said staiî, a sector frame having a segmental 15 scale, a pivotal coupling between the frame and. said bracket for separable connectionV therebe tween, a foldable shelf carried by the frame, a swinging prop» on the lframe and coacting with by said stall”, a sector frame having a segmental scale, a pivotal coupling between the frame and said bracket for separable connection therebe tween, a foldable shelf carried by the frame, a 10 Swinging prop on the frame andcoacting with the shelf to hold the same against folding move ment, a plumb bob hung from said frame and co acting with the scale, and aim ridges at opposite ends of said shelf, the said coupling having sep 15 arable slidable connection with the bracket. ARTHUR TURRIAN.