Roof Screw. Page: 2 of 2
This patent is part of the collection entitled: Texas Patents and was provided to The Portal to Texas History by the UNT Libraries Government Documents Department.
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UNITED STATES PATENT OFFICE.
DANIEL B. CORLEY, OF ABILENE, TEXAS.
ROOF-SCREW.
SPECIFICATIO formig part of Letters Patent No. 436,775, dated September 23,1890.
Application filed May 2, 1890, Berial No, 350,730. (No model.)To all whom it mnay concern-
Be it known that I, DANIEL B, CORLEY, a
citizen of the United States, residing at Abi-
lene, in the county of Taylor and State of
5 Texas, have invented a new and original
Screw for Holding Tin and Iron Roofs and
Sidings upon Houses, of which the following is
a specification, reference being had to the ac-
companying drawings, forming a part thereof.
io Figure 1 is a plan view lookingat the head
of the screw. Fig. 2 is an elevation thereof.
Fig. 3 is a detail view of the elastic cushion.
Like letters of reference denote correspond-
ingparts in all the figuresof the drawings, in
15 which-
a designates the shank of a roof-screw em-
bodying my invention. The shank is pointed
at one end, headed at the other end, as at b,
and threaded for a suitable distance from the
20 pointed end toward the head thereon, as at c.
This head b is enlarged and made integral
with the shank, and it has a transverse notch
or recess d made therein to receive a screw-
driver or similar tool for forcing the screw
25 into the wood, &c. Below the integral head
b of the screw is an enlarged collar or flange
e, which may be integral with the shank or
rigid with the same, or be made separate
from the shank and fitted thereon, and an
30 elastic cushion f is fitted on the shank below
the integral head b and the enlarged collar
or flange e, the diameter of said collar or flange
being preferably greater than the diameter
of the head b and the cushion f; but this is
35 optional.The screw-threaded shank may be similar
to the shanks of a wood or metal screw, and
the head b can be adapted to receive a wrench
or screw-driver.
The leading features of this invention are, 40
first, the screws, being placed, will hold a roof
down in time of a wind or storm and keep it
from making a noise, and they will also hold
the roof so closely down upon whatever it may
rest on that no wind can lift it off or lift one 45
side or place more than another and thereby
strain and pull the joints of the roof apart so
as to make the roof leak; secondly, it is to
keep houses from being unroofed in times of
storms and tornadoes, the rubber cushion be- 50o
ing so tightly pressed down upon the roof by
the head of the screw that no water can ever
pass down through the hole made in the roof
by the screw passing through it. This rubber
cushion presses both ways and keeps the wa- 55
ter from the screw both above and below.
These rubber washers may be replaced by
new washers as time may demand.
What I claim as new is-
As a new article of manufacture, a screw 6o
consisting of a threaded shank having an in-
tegral head, an enlarged collar or flange on
said shank below the head thereon, and an
elastic cushion on the shank immediately be-
low the enlarged collar or flange, for the pur- 65
pose described, substantially as set forth.
DANIEL B. CORLEY.
Witnesses:
K. I. LEGETT,
THOMAS BUCK.
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Corley, Daniel B. Roof Screw., patent, September 23, 1890; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth172474/m1/2/?q=%22~1%22~1: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.