Improvements in Planks or Scaffold Boards for the Use of House Decorators, Builders, and other Workmen and other Persons.
Year: 1899

page_text: Date of Application, 11th Mar., 1899
Complete Specification Left, 9th Dec., 1899-Accepted, 10th Mar., 1900
PROVISIONAL SPECIFICATION.
Improvements in Planks or Scaffold Boards for the Use of House
Decorators, Builders, and other Workmen and other Persons.
JOHN JAMES CARR, House Painter and Decorator, 12, East Mount, Malton,
Yorkshire, do hereby declare the nature of this invention to be as follows:-
To increase the strength of woods and planks used by house decorators, builders,
workmen and others for the purpose of scaffolds used by them and also to increase
the strength of wood and other planks used for other purposes by inserting in
such wood and planks strong steel wires or steel bands from end to end or from
side to side properly secured by screws or other means thus increasing the
strength of the wood or planks so treated and the safety of the persons using
the same.
Dated this 10th day of March 1899.
JOHN JAMES CARR,
12, East Mount, Malton.
Improvements in Planks or Scaffold Boards for the Use of House
Decorators, Builders, and other Workmen and other Persons.
I, JOHN JAMES CARR, of 12, East Mount, Malton, Yorkshire, Painter and
Decorator, 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:-
My invention has for its object an improved scaffold board or plank for the
use of house decorators builders and others by which I strengthen such planks
or boards in a manner that they are rendered much less liable to break and are
less springy when in use. My improvement is easily and cheaply applied to all
kinds of existing planks boards beams poles ladder sides and the like thus con-
siderably strengthening such articles without increasing the weight or materially
adding to the cost.
In order that my invention may be clearly understood and more easily carried
into practise I have appended hereunto a sheet of drawings upon which I have
fully illustrated the nature of my said invention as applied to a plank together
with the-mode of and means for carrying the same into effect and from which
its application to other like articles will be readily understood.
Figure 1 is an inverted view of a plank grooved in accordance with my im-
provement

page_text: Figure 2 is a section through Figure 1.
Figure
3 is a view of a length of the strengthening wire for addition thereto.
Figure 4 is a longitudinal side elevation of the plank shewing the method of
applying the wire.
Figure 5 is an inverted view of the plank shewing the wire attached thereto.
Figure 6 is a cross section of Figure 5.
Figure 7 shews one method of utilizing my improved planks by which they
can be rendered more portable.
Figure 8 is another view of Figure 7 but shewn in extended form.
In carrying my invention into effect I take a plank A as ordinarily used and
groove it preferably on the under face with the longitudinal grooves a¹ of which
there may be any desired number after which I partly insert a strong headed
spike or screw B at each end of the groove I then bend or bow the plank as shewn
by Figure 4 and while in such positions connect the two spikes or screws B of
each groove together by a length of wire C such as shewn at Figure 3 and which
is provided with the loop ends c¹ for attachment to the said spikes or screws. The
plank A is then allowed to spring back into its normal or straight condition
upon which the wire is strained to its full extent and enters the groove al
prepared for it in which position it is retained by suitable staples E as shewn in
Figures 5 and 6 and the headed spikes or screws B are driven home. I prefer
for the plank to be used with the grooves and wires on the underside but they
may be arranged on either or both sides and I may dispense with the grooves in
which case the wire C would lie on the face of the plank A. For portable
purposes I may reduce the length of the plank by dividing it into two halves
as shewn by Figures 7 and S and joining the two together by overlapping the
two ends a² and ³ and securing each end of the lap by suitable metal bands F
and F the band F being attached to the end of the plank so as to slide on the
plank a while the band F is attached to the a² end of the plank so as to slide
on the plank as by which means the two parts of the plank can be telescoped
together but in this case the wire C requires the groove to allow them to be
perfectly flush so as not to interfere with the telescoping. Studs H are provided
to prevent the two portions from being drawn apart.
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
1st. Strengthening scaffold boards planks and the like by bending same, attach-
ing a tensional wire or wires and allowing the article to spring to its normal
or straight position substantially as and for the purpose as herein set forth and
illustrated.
2nd. In combination with Claim 1 the grooves a¹ in which the tensional wires
lie substantially as herein set forth and illustrated.
3rd. In combination with Claim 1 securing the said wires to the article by
staples substantially as herein set forth and illustrated.
4th. In planks or scaffold boards for the use of house decorators builders and
other workinen and other persons, providing the planks with longitudinal grooves
in which wires are secured under tension and flush with the surface substantially
as & for the purpose herein set forth and illustrated.
Dated this 8th day of December 1899.
LEWIS WM. GOOLD,
Agent for Applicant, 5, Corporation Street, Birmingham.