Glazing and other Purposes.
Year: 1886

page_text: Glazing and other Purposes.
I, JOSEPHUS PLENTY, of 144 Pearl Street in the City of New York and the
United States of America, Horticultural Architect and Builder, do hereby declare
the nature of my invention for IMPROVEMENTS IN THE ART OR PROCESS OF JOINING
TOGETHER BY UNITING THEIR EDGES OF SEPARATE SQUARES, PIECES OR PANES OF
GLASS FOR GLAZING AND OTHER SUCH PURPOSES, and in what manner the same
is to be performed to be particularly ascertained in and by the following
statement-
Heretofore it has been found impossible to thoroughly unite two or more separate
pieces or panes of glass, and therefore the square or pane has been limited in size to
the length of the sheet as made or cast; and the joining together of art or colored
glass has been by means of a lead sash bar at each joint, soldered together at the
angles to hold the same in position; and in cases where a cement or putty has been
used, the cement or putty has been mixed with oil, glue, or some other organic or
animal substance liable to decay.
The object of my invention is to unite or join together the edge or edges of two
or many separate pieces or panes of glass by means of a cement composed of an
insoluble silicate of lime, which unites with and forms part of the substance of the
glass, gets harder and stronger with age and is not acted upon or destroyed by the
action of the weather; and the invention is applicable to glass roofs of every
description, whether skylights, conservatories, plant houses, rose houses, horticul-
tural and public and private buildings, also for repairing or joining plate or sheet
glass in stores and dwellings.
To carry the same into effect I cover the edges of the glass to be united or joined
together, with a thin layer of a paste composed of about three parts of silicate of
sodium, combined with one part of dry, powdered air slaked quick lime, and one
part of powdered friable carbonate of lime; the portions to be united are then
brought into contact, the surplus cement rubbed off, and allowed to dry. The
paste should not be too thick, and it is desirable that it should be applied as soon
after the ingredients are combined as possible. In the chemical action which takes
place when the cement is applied and the edges joined, part of the soda combines
with the glass, and part of the silica in solution combines with the lime, forming
a hard insoluble silicate of lime, and becoming a part of the substance of the glass,

page_text: thereby uniting the separate pieces in to one continuous whole. The glass when
united in this manner forms a perfectly plane surface on both sides of the glass,
and the joint is not very apparent from a slight distance, and any fractures in the
glass can be united in the same way.
For the formation of a roof or skylight I form the vertical or transverse sash
bars of wood or metal, with a saw cut, kerf, or groove at its sides of the thickness
of and for the reception of the glass squares, I then slide the squares of glass up
from the base or eaves, not lapping but butting the horizontal joints and cement
the edges of the glass; thus forming one continuous light or pane with a plane
surface on both the outside and inside of the glass from the ridge or peak to the
eaves or base of the skylight or roof.
For the joining together of colored, stained or art glass, the separate pieces or
parts composing the pattern must be placed on a plane surface, the edges then
cemented and the whole left to dry or liarden before being handled, the warm dry
air of an ordinary workshop is sufficient for this purpose. The cement as herein-
before described is also applicable for the joining together or laying of encaustic
tiles, particularly when the same are used on walls or vertical partitions.
If the carbonate of lime be ommitted in this composition, and silicate of sodium
combined with dry, powdered air slaked lime only be used, it is sometimes found
advantageous, particularly in a moist or damp atmosphere, such for instance as
that usually found in green houses and orchid houses.
In the putting together of colored or stained glass I color the same with the
Sulphate of Manganese to render the joint less conspicuous. The Silicate of
Sodium bere mentioned is the common silicate of soda of commerce, and the
carbonate of lime, that usually known as Paris white; and the air slaked lime,
the ordinary white well burned lime as usually used.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. The within described compound or cement for joining the edges of glass,
composed of about two parts of silicate of sodium, to one part of dry. powdered
air slaked lime, substantially as described.
2. A roof or skylight composed of two or more separate lights or panes of glass
united or joined together by cement at their edges to form one continuous light,
square or pane from the ridge or peak to the eaves or end of the skylight or roof;
substantially as described.
*1 6
3. A stained glass window, square or pane, or light, composed of separate pieces
or parts of colored; stained or art glass, joined together, by means of a cement of
silicate, of lime instead of leaded work, substantially as described.
-
4. A cement for joining pieces of glass composed of silicate of sodium, carbonate
of lime, and air slaked quick lime, and colored with sulphate of manganese; substan-
tially, as described.
**
:
5. The within described cement. for joining together or laying encaustic tiles,
substantially as described.
: :
TT
Witnesses,
J. F. PENISTON.
C. W. ZAMBURY.
Vary 1000.
JOSEPHUS PLENTY