Improvements in Metallic Lathing or Backing for Plaster or Cement Partitions and Ceilings.
Year: 1887

page_text: Date of Application, 26th Nov., 1887
Complete Specification Left, 25th Aug., 1888
Complete Specification Accepted, 5th Oct., 1888
PROVISIONAL SPECIFICATION.
Improvements in Metallic Lathing or Backing for Plaster or
Cement Partitions and Ceilings.
I FRANCIS NAPIER SEYDE of Colmore Row Birmingham in the County of
Warwick Gentleman, do hereby declare the nature of this invention to be as
follows:-
This invention consists of forming the laths or backing for plaster or cement
partitions or ceilings of strips of sheet iron or other metal of any convenient length
and width preferably of the lengths of ordinary wooden laths and from nine to twelve
inches wide, these strips of metal have elongated holes or slits cut or punched out on
their surface so as to form a key to the cement or plaster the level surface of the
metal laths allowing of the possibility of a very thin coating being laid in and
finished smooth.
The laths are fixed by nailing to the joists or studding through these elongated
holes or slits which from their form will allow of play to the nail and prevent the
liability of cracks shewing in the wood from contraction and expansion of the timbers
or from jarring.
Another mode of forming a key for the plaster or cement is to punch holes at
random over the surface of the strips say at about 2 inches apart, such of the
boles as come opposite the joists or studding being used for nailing through were
required.
Dated this 25th day of November 1887
PAYNE & TALBOT,
7, Cherry Street, Birmingham,
Agents for the Applicant.

page_text: Cement Partitions and Ceilings.
I FRANCIS NAPIER SEYDE of Colmore Row Birmingham in the County of Warwick
Gentleman 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 consists of forming the laths or backing for plaster or cement
partitions or ceilings of strips of sheet iron or other metal of any convenient length
and width preferably of the lengths of ordinary wooden laths and from nine to twelve
inches wide, these strips of metal have elongated holes or slits cut or punched out on
their surface so as to form a key to the cement or plaster the level surface of the
metal laths allowing of the possibility of a very thin coating being laid on and
finished smooth.
The laths are fixed by nailing to the joists or studding through these elongated
holes or slits which from their form will allow of play to the lath and thus allowing
for contraction and expansion and for the effects of jarring will prevent the liability
of cracks showing in the work from contraction and expansion of the timbers or
from jarring.
Another mode of forming a key for the plaster or cement is to punch holes at
random over the surface of the strips say at about 2 inches apart but in no case must
the random or jagged holes be used for securing the laths to the joists as this would
prevent the contraction and expansion of the woodwork which is one of the principles
of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is,
The application of metallic laths substantially as above described for the purpose of
receiving plastering or cement for ceilings partitions and similar purposes, whereby
I am enabled to prepare such ceilings partitions and the like with less liability to
crack on the surface of the plastering.
3000