IMPROVEMENTS IN METALLIC SHINGLES FOR ROOFING PURPOSES A
Year: 1882

page_text: LETTERS PATENT to William Robert Lake of the firm of Haseltine, Lake,
"
& Co Patent Agents, Southampton Buildings, London, for an invention
of "IMPROVEMENTS IN METALLIC SHINGLES FOR ROOFING PURPOSES A com-
munication from abroad by Chester Comstock, of New Canaan, Connecticut,
PROVISIONAL SPECIFICATION left by the said William Robert Lake at the
Office of the Commissioners of Patents on the 28th March 1882.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake, & Co Patent Agents,
Southampton Buildings, London "IMPROVEMENTS IN METALLIC SHINGLES FOR
ROOFING PURPOSES " [A communication from abroad by Chester Comstock, of New
Canaan, Connecticut, United States of America, Superintendent of Works.]
This invention relates to improvements in the sheet metal diamond pointed
shingles described in the specification of former Letters Patent dated September 3rd
A.D. 1878 No 3491, the object of the present invention being to provide means
whereby the points of the shingle can be held in place without necessitating the
formation of slits in the body of the shingle to receive the point of the overlapping
shingle.
My present invention consists in providing a projection or hook on each side of
the point of the shingle by making a slit in the metal on each side just below the
lower ends of the bollow ribs which extend along the inclined edges, and in
springing up the inetal at the obtuse corners of each shingle so that the hooks of
the overlapping shingle will pass under the adjoining edges of the two underlying
shingles and thereby hold the point in place.
Each shingle is provided with a central longitudinal hollow rib, and has its
parallel edges turned upward so that the adjoining parallel edges of two shingles
will enter the underside of the rib of the overlapping shingle. Other hollow ribs
are formed along the inclined edges of each shingle terminating at their lower ends

page_text: a short distance above the point of the shingle. The upper ends of these ribs curve
inwardly forming slightly smaller hollow ribs. The metal on each side of the first
named rib is slit just below the termination of the other ribs to form hooks, and
the metal at the obtuse corners of each shingle is sprung up, so that the hooks of
an overlapping shingle will pass under the adjoining corners of the two underlying
shingles and the point of the overlapping shingle will be firmly held in place.
In practice it has been found that the slots in the shingle as heretofore made
would not always be entirely closed by the point of the overlapping shingle and
hence leaks would occur through these slots. By the present invention I obviate
this difficulty, the point of the overlapping shingle being firmly held in place and
the driving of rain upward between the corners absolutely prevented“

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Great Seal Patent Office on the
28th September 1882.
WILLIAM ROBERT LAKE of the firm of Haseltine Lake & Co Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN METALLIC SHINGLES FOR
ROOFING PURPOSES "A communication from abroad by Chester Comstock, of
New Canaan, Connecticut, United States of America, Superintendent of Works,
This invention relates to improvements in the sheet metal diamond pointed
shingles described in the specification of former Letters Patent dated September 3rd
A.D. 1878 No 3491, the object of the present invention being to provide means
whereby the points of the shingle can be held in place without necessitating the
formation of slots in the body of the shingle to receive the point of the overlapping
shingle.
My present invention consists in providing a projection or hook on each side of
the point of the shingle by making a slit in the metal on each side just below the
lower ends of the hollow ribs which extend along the inclined edges, and in springing
up the metal at the obtuse corners of each shingle so that the hooks of the over-
lapping shingle will pass under the adjoining edges of the two underlying shingles
and thereby hold the point in place.
Each shingle is provided with a central longitudinal hollow rib, and has its
parallel edges turned upward, so that the adjoining parallel edges of two shingles
will enter the underside of the rib of the over-lapping shingle.
Other hollow ribs are formed along the inclined edges of each shingle terminating
at their lower ends a short distance above the point of the shingle. The upper
ends of these ribs curve inwardly forming slightly smaller hollow ribs. The metal
on each side of the first named rib is slit just below the termination of the other
ribs to form hooks and the metal at the obtuse corners of each shingle is sprung up,
so that the hooks of an overlapping shingle will pass under the adjoining corners
of the two underlying shingles and the point of the overlapping shingle will be
firmly held in place.
In practice it has been found that the slots in the shingle as heretofore made
would not always be entirely closed by the point of the overlapping shingle and
hence leaks would occur through these slots. By the present invention I obviato
this difficulty, the point of the overlapping shingle being firmly held in place, and
the driving of rain upward between the corners absolutely prevented.
Having thus fully described the said invention as communicated to me by my
foreign Correspondent and the manner of performing the same I wish it under-
stood that I Claim,
First. A metallic shingle constructed substantially as above described having
lateral slits in the sides of its point, and the adjacent metal below such slits being
formed into hooks, substantially as, and for the purposes, specified:
Second, A metallic shingle having hooks at its point and sprung-up portions at
its obtuse corners, whereby such a shingle is adapted for combination with other
like shingles, substantially as described.
Third, In a metallic shingle constructed substantially as described, the hooks
adapted to be drawn under the obtuse corners of the two adjoining underlying
shingles to hold the point of the overlapping shingle in place, as specified.
In witness whereof I the said William Robert Lake have hereunto set my
hand and seal this Twenty eighth day of September in the year of our
Lord Oue thousand eight hundred and eighty two.