Structures.
Year: 1888

page_text: Date of Application, 28th Apr., 1888
Specification Accepted, 1st June, 1888
similar Structures.
I EDGAR NEWTON of Hitchin in the County of Herts, Horticultural Builder,
do hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to the construction of Greenhouse, Railway, and other Roofs
of the class in which metal sash bars, preferably of a T shape. in cross section, are
employed for supporting the glass, or slates, and has for its object the better and more
readly attachment of the sash bars to the bar which forms the ridge of the roof.
In carrying out my invention, I employ a metallic attachment peculiarly formed
by casting or otherwise, which is carried by, or rides upon the ridge bar, and into
which the T shaped sash bars are slidden and secured.
In the accompanying drawing I have shown the attachment applied to a ridge
bar.
Fig. 1 being a side view, and
Fig. 2 an end view of the same.
A is the attachment, having a central part a slotted or recessed at its upper part,
and arms at a grooved or recessed longitudinally on their under side, and projecting
downward on either side of the central part at the proper inclination of the roof.-
a is another part of the attachment A, pendent between the arms a' a', and separated
from the central part a by a neck a³-B is the ridge slotted below to lock with the .
central part a of the attachment A in the manner shown.-The attachment A is
secured to the ridge bar B by screws driven through the up-standing sides of the
recessed part of the attachment, into the upper or solid part of the ridge bar.-
Guides a are provided on the metal attachment A for retaining the same against
sideway movement on the bar.
CC are a pair of metal inverted T (1) shaped sash bars, a series of which are
provided from ridge to plate all along the roof of the Greenhouse to carry the glass.
The upstanding part of the T sash bar Cis slid into the groove of the attachment

page_text: arm a¹, and the end of the bar abuts against the neck a³, and is supported by the
pendant a of the attachment A.-The sash bar is further secured by screws or bolts
passed through it and the arm a¹.
An attachinent A having been arranged for as many pairs of sash bars as are
required to form the roof, the glass D is laid on and secured in any convenient
the uppermost sheets of glass lying close up to, or being embedded in the
manner,
ridge bar.
This mode of construction is applicable to roofs of structures other than Green-
houses, and metal sash bars of a section different from that shewn in the drawing may
be employed. It will however be evident that the arms must be grooved, and the
attachment generally must be formed to meet the requirements of the sash bar
employed.
In lean to Greenhouses, where the ridge, bar, is carried by a brick wall, the sash
bar attachments will have arms on one side only.
The pendant a² of the attachment A, in addition to supporting the ends of the sash
bars, may be employed for carrying a wire for training the plants growing within
the Greenhouse, or for carrying a tension screw, by means of which a wire con-
necting the plates at opposite sides of the structure may be strained, and the sides
thereby held against bulging outward under the weight of the roof.
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 1
claim is :-
1. The mode of connecting the sash bars of Greenhouse and similar roofs to the
ridge hereinbefore described and shewn in the drawings.
2. The metallic attachment for supporting the sash-bars of Greenhouse and similar
roofs, constructed and arranged substantially as herein shewn and described.
'Data' this 10th dove of Annil 1·000
'