Патент USA US2110401код для вставки
March 8, 1938._ M. F. PRANGLEY _ 2,110,401 BEAD RUNNER Filed March 25, 1937 71.13 I ' I! ' //////// / . I‘ q f , . WI’ , . I I] .H' . , H" | ~ ,4 1 1“ ,_, I“ v 5|, ,5 /d‘ ‘ /03 . 1. .sygmdgfz Attorneys Patented Mar. 8, 1938 2,110,40l UNiTE’D STATES PATENT OFFIQE 2,110,401 . BEAD RUNNER Marshall F. Prangley, Transvaal, Union of South Africa Application March 25, 1937, Serial No. 133,056 1 Claim. (Cl. 72-431) My invention relates generally to means for wall is plastered and a groove is left in the plaster moulding and ?nishing beads on plaster walls at the required height from the floor. A running and the like plastic material objects, and par rule I 4 is then nailed as indicated by the numeral ticularly to- a bead runner for moulding and ?n I5 to the wall at the bottom of the groove l6, 5 ishing a bead on a plaster wall, and an important object of my invention is to provide means of the character indicated which enables the production and ?nishing of beads with large savings in time and materials. 10 Other important objects. of my invention will be apparent from a reading of the following descrip tion in connection with the drawing, wherein for purposes of illustration I have shown preferred embodiments of my invention. In the drawing:— Figure 1 is an elevational view of the lower part of a plaster wall showing an embodiment of the invention in operative relation thereto and in process of moulding and ?nishing a bead on the wall. Figure 2 is a bottom plan view of the bead runner. Figure 3 is a transverse vertical sectional view taken through Figure 2 approximately on the 25 line 3-3. Figures 4 and 5 are views similar to Figure 3 of runners with modi?ed bead forming elements. Referring in detail to the drawing, the numeral 5 generally designates the bead runner which is 30 conveniently in the form of a flat block 6 pro vided with a U-shaped handle 1 whose legs are attached to or integral with the opposite ends of the block at the longitudinal center thereof and immediately over the wedge-shaped longitudinal 35 groove 8 which is formed in the flat plain bot tom 9 of the block 6, and in which is set the bead forming element It which is shaped on its under side with a groove formation II which may be varied to give desired contours to the bead l2 on 40 the wall 53. The embodiments of my invention shown in Figures 4 and 5 are similar in all respects to the embodiment shown in Figure 3 except that the bead forming elements Ida and 10b thereof have 45 different groove forming contours Ha and Nb‘, respectively. In operating the device of the invention for purposes of producing the ?nished bead l2, the and on this rule the device 5 is manually moved so as to form and ?nish by moulding and pressure and friction a ?lling composed preferably of ?ne sand, cement, and plaster of Paris. After the ?lling has been placed in the groove the tool is applied to the running rule and run along the 10 full length of the head to be constructed. It is only necessary to pass the tool three times along the work usually to produce a ?nished bead, and to produce a head which has ?ne clear cut top and bottom boundaries. 15 In the case of the embodiment of the invention shown in Figure 4, the effect of a double bead is available whereas the embodiment of the inven tion shown in Figure 3 produces a single broad bead. The embodiment of the invention shown in Figure 5 makes available a concave bead with outstanding borders. Any desirable contour of bead may be provided for by correspondingly shaping the bead forming element. Although I have shown and described herein, preferred embodiments of my invention, it is to be de?nitely understood that I do not desire to limit the application of the invention there to, and any change or changes may be made in the materials, and in the structure and arrange ment ,of the parts, within the spirit of the in vention and the scope of the subjoined claim. What is claimed is: A bead forming tool of the class described comprising a rectangular shaped block, a handle connected to one face thereof, the other face be ing ?at and the ?at face having a groove in its central portion extending from one end of the block to the other end, the groove being of dove tail shape in cross section and a bead forming member having a dovetail shaped part slidably arranged in the groove, with the bead forming portion projecting from the said face of the block and the side edges of the block being straight and spaced considerable distances from 45 the bead forming member. MARSHALL F. PRANGLEY.