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Патент USA US2110401

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March 8, 1938._
M. F. PRANGLEY
_
2,110,401
BEAD RUNNER
Filed March 25, 1937
71.13
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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.
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