provements in Apparatus for Fastening and Securing Scaffold Poles together for Buildings, Temporary Stands, Structures, Bridges and the like.
Year: 1898

page_text: Date of Application, 31st Dec, 1898
Complete Specification Left, 12th Aug., 1899-Accepted, 16th Sept., 1899
PROVISIONAL SPECIFICATION
Improvements in Apparatus for Fastening and Securing Scaffold
Poles together for Buildings, Temporary Stands, Structures,
Bridges and the like.
I, WILLIAM WALTER BENGOUGH, of 27, Cambidge Terrace, Cliff Town, South-
end-on-Sea, in the County of Essex, and 140, Minories, in the City of London,
Engineer, do hereby declare the nature of this invention to be as follows:-
The object of this invention has reference to a safe, effective and expeditious
method, whereby the securing and fastening of scaffolding together in its various
forms is accomplished
My improved apparatus 18 of the class and consists of a metallic tie, this con-
sisting of and forming two half bands of non or other metal having series of
sharp projecting points at fixed positions on inner surface of bands, the two
halves being fastened together with iron or steel bolts and nuts, a wooden
linear being placed between the feet of half bands to relieve any undue strain not
required in usage.
These two half bands enclose and clasp two poles at a rectangular, side by
side or any other position, they are then drawn together by the bolts and nuts
until they close on to the wooden linears as aforesaid; during this process the
aforesaid series of projecting sharp points pierce and are forced into the poles,
a light hammering on outside surfaces during this period being applied further
insures the points being permanently embeded into the poles; thus secured the
tie is perfect absolutely rigid and safe, without any possibility of shifting the
position.
The application 18 rapid, the poles immeadiately firmly secured and 'require
no further attention during the period of the erection, such as are required by
the tension and relaxation of the ordinary ope tie and wedges, caused by the
weather influence rendering subsequent renewals necessary
The apparatus is permanent with the scaffold poles, the tie being removed with
and re-erected with same
The apparatus being free from any complications in manufacture cannot get
out of order, all parts being simple and not requiring skilled labour in the process
of being applied.
The apparatus can be constructed of light iron or steel, stamped, forged or
cast malleable, are designed to be inter-changeable in sizes to suit the vanous
diameters in the tapering of poles, with true pitched bolt holes in the bands;
the whole may be galvanized to resist any atmospheric action that would occur
When the apparatus is to be applied to secure a ledger, a wrought iron twisted
link with wall stud and nut is added to same to secure this where required
When the apparatus is to be used with the construction of temporary bridges
for military or other purposes, where expedition is a feature, also for temporary
stands, structures, enclosures and other purposes, the tie may be applied in the

page_text: aforesaid manner,
at any angle where desired or requisite to secure said struc-
tures, scaffolding, and the like
Dated this 29th day of December 1898
Improvements in Apparatus for Fastening and Securing Scaffold
Poles together for Buildings, Temporary Stands, Structures,
Bridges and the like
1, WILLIAM WALTER BENGOUGH, of 27, Cambridge Terrace, Cliff Town, South-
end-on-Sea, in the County of Essex, and 140, Minories, in the City of London,
Engineer, do hereby declare the nature of this invention and in what manner
the same 18 to be performed, to be particularly described and ascertained in and
by the following statement
In the accompanying two sheets of diawings Fig's 1 and 2, shew the applica-
tion of the metallic tie constructed according to this invention, fixed to two
scaffold poles at a rectangular position as for puncipals or otherwise Fig 1,
being a side elevation, Fig 2, being a front elevation of same
Fig 3, being a front elevation of two scaffold poles acting as a brace at an
oblique form with the metallic tie applied at the essential position clasping and
securing the poles as shewn, the side elevation of this figure is similar to that
as shewn, as the side elevation of Fig 1, the ends of the poles being secured to
ather parts of the scaffolding o1 structures by the apparatus of a suitable form
and constructed to suit the conjunctions where they come into contact but not
shewn.
requned for
Figs. 4 and 5, shew the apparatus constructed to secure a single pole to be
used as a ledger and may be secured to a brick wall or to timber as
this to be performed an non or steel link with screwed stud and nut is to be
added to the tie as shewn at b, Fig. 4, being a front view, Fig 5, an end view
of same
Fig's 6 to 8, inclusive shew two scaffold poles fastened and secured together
in a lateral position by the apparatus constructed according to this invention
Fig 6 being the end view, Fig. 7, the front elevation Fig 8, the side elevation,
Fig 9, being a vertical or horizontal view in section shewing at A how the
projecting points on the half bands are embeded into the poles when the bands
are finally drawn together in positions as aforesaid and described, Fig 10, being
a plan of the half band inside view shewing at A, the projecting points as
arranged in series, these said points in similai series exist on the half bands of
the tie in all the designs, distributed in like manner and to suit the various forms
of the apparatus but not shewn
In Fig's 6 to 8, inclusive the apparatus can be applied to the scaffold poles
laterally to suit the vertical positions for principal uprights or for horizontal
positions where the applications are required and essential to suit the various
purposes on the scaffolding or structures, such as for platforms to be laid on and
the like, when used to secure a series of continuing uprights together the ties
would be fixed alternately in succession this to preserve the correct perpendicular,
also to equally distribute the strain of the dead weight of the structure affecting
the same during the period of the erections
In the example such as shewn at Fig 1, and 2, the apparatus can be applied

page_text: otherwise than as thereat and aforesaid described, to wit, to fasten and secure
the other end of a ledger pole than as shewn at Fig's 4 and 5, in this case the
tie can be applied vertically or horizontally to the poles to whichever the said
ledger-pole may come into juxtaposition or in contact with
The apparatus as shewn at Fig's 4 and 5 can also be otherwise used than as
shewn, to wit, the iron link dispensed with the tie can then be used and applied
to a fracture or series of fractures in the scaffold poles, supposing such to occur
during the erection from any unforseen cause, this can be executed without the
fractured pole requiring removal from the existing position on the erections,
structures, or scaffolding, the application of the tie or series of ties would be
immediate and when properly secured would render the pole or poles recurring
to their original strength and stability, also remaining permanent during the
period of the erections.
When at positions where by the tapening of the poles they unavoidably come
into conjunction with the diameters at variance, it then becomes essential to
secure and fasten the poles together in a different manner than where the
diameters are alike and equal as shewn at Figs. 1 and 2, this is accomplished
by selecting half bands of the ties requisite to suit the different diameters at
these conjunctions, apply these two half bands of different diameters to the
poles and secure in the same manner as aforesaid and described, to enable this
to be done with accuracy and expedition such as are necessarily required for
constructing temporary military or other bridges, structures, and the like I
design the various diameters of the metallic tie to have the bolt holes pitched
so that they are interchangeable to a certain extent and within a certain range
to suit the varied diameters as they occur, as supposing may be to secure a pole
having a six inch diameter to a pole having a five inch diameter, or to a pole
having a four and a half inch diameter, this would be the range limit for these
diameters, also supposing may be to secure a pole having a five inch diameter
to a pole having a four inch diameter, or to a pole having a three and a half inch
diameter, this would be the range limit for these diameters, and so forth and
in like manner as the said varied conjunctions may occur, also to suit the range
limit as aforesaid, to enable the application to be more rapid also to give greater
facilities to execute the fixing in places each half band of the apparatus is marked
in inches and the fractions thereof, according to the diameters of same as manu-
factured; these variations in the half bands are also allowed for at Fig's. 6 to 8
Inclusive as poles of different diameters can be secured and fastened together
where required and may occur, this to be understood that the half bands can
be constructed with the diameters at variance, to wit, the half bands can be
manufactured to have the diameters as thus, a six inch diameter combined with
a five inch or a four and a half inch diameter, this would be the range limit
for these diameters again a four inch diameter combined with a three and a half,
or a three inch diameter, which would be the lange limit for these diameteis
and so forth and in like manner, constructed thus the half bands will fasten
and secure poles of these varied diameters laterally together where required on
the scaffolding or erections
In the design of the apparatus the objecte sought for and studied have been
to ascertain and obtain a suitable method to secure scaffolding and the like in
a more reliable and trustworthy manner than hitherto performed by the applica-
tion of the ordinary ope tie and wood wedge so well known in use for these
purposes: this I accomplish by the apparatus constructed according to my inven-
tion as aforesaid described, the metallic tie is to be manufactured of suitable
material, to be of the lightest thickness compatible with the required strength,
I prefer mild steel forged or stamped or to be cast malleable in iron or steel of
a light thickness throughout, in construction to avoid any undue prominence
that would be obstructive when fixed in places, also to give a neat appearance
to the apparatus without causing any deterioration from the strength essential,
I make the full dimensions of the bands to be barely so and only just sufficient

page_text: to allow these being passed over and close to the poles as shewn at Fig's. 1 to 6,
inclusive, also with merely and just sufficient surface at the bolt holes to allow
the bolt nut to turn in place to tighten and slacken same, as also shewn at said
figures, as aforesaid and described a wood linear is in all forms of the apparatus
placed between the feet of the half bands when fixing the same to places, this
is attached to avoid any undue stiain taking place that would alter the formation
of the bands while being drawn together, also to allow the feet of the half bands
to become firmly fixed together at the same moment when the projecting points
are being finally embeded into the poles, the tie is thus firmly secured and with
no possible means to slacken without interference; as aforesaid and described
a light hammering over the surface of the bands during the process of drawing
these together with the bolts and nuts further facilitate the points embeding
into the poles; if however at any future period it is found necessary to draw
the bands closer together, also to allow the projecting points to still further
embed into the poles, the existing wood linears can be removed singly from each
bolt with safety and security, a linear of less thickness inserted in place thereof,
and the tie secured once more as aforesaid and described, the bolts to be used
to fasten the apparatus together will be made square at the section under the
head of same to fit a square hole in the bands but not shewn, this to avoid the
bolt turning in place while being screwed up, the tie constructed according to
this invention as described is very light, strong and effective no parts to get out of
order, but if by any unforeseen circumstances damage may on supposition occur,
the part or parts so damaged can instantly be renewed, the apparatus being inter-
changeable to the limit as aforesaid and described, the apparatus in its entirety
or in parts can be stowed closely for storage or for portage, capable to sustain
the inevitable rough handling unavoidable for these purposes without injury
compatible with ordinary care exercised while this is being performed
The apparatus as aforesaid and described being constructed of light cheap
material the cost of production 18 very low, this rendered certain by the sim-
plicity in the manufacture of same in the various forms as shewn in the annexed
drawings and the like not shewn
Br the usage of this said invention as described the greatest security is
obtained associated with rapid facilities for fastening the tie in places, reducing
the possibilities of accidents, with the subsequent train of the obvious liabilities
of employers to a minimum combining the coefficiency of strength and durability
with assured economy inasmuch by not requiring any personal attention during
the period of the scaffolding standing, no expenses to incur for their up-keep
after once secured in position, renewals by wear and tear, weather influence and
the like avoided, the outlay for the employment of skilled labour to apply and
fix the apparatus to the several positions on the scaffolding or structures also
avoided, as ordinary cheap labour is only requisite for these purposes at any
time
When the apparatus in its various forms are fixed to the poles as aforesaid
described, no possible injury to the said poles can incur as the application not
being violent, merely a slight indentation on the surface of the poles being
effected, this made by the projecting points on the bands, when being fastened,
ensures this, allowing repeated applications being accomplished at same or other
positions on the poles at future elections and structures safe and certain, no
deterioration or weakness of the poles possible to occur to prevent the continuous
use of said poles, as would necessarily be the case where violence may unavoid-
ably have to be used to accomplish the same purpose
As shewn in Fig's 9 and 10, the possibility of the apparatus when finally
secured to the poles on the scaffolding and the like, wholly or in part slipping
from the then position is reduced to an impracticability inasmuch that any
likelihood of a possible strain taking place to induce a slip would but cause the
series of projecting points at A to jam and go more firmly into the poles, the
effects of any strain would then be distributed over the entire apparatus, this
.

page_text: being adequate to endure said supposed strain, the tie is retained in the exact
position where fixed to the poles originally.
The entire apparatus galvanized will resist all or any atmospheric influence
that would occur during the period of erection and to which these would be
exposed continuously, not protected they would be subject to a certain amount
of deterioration taking place, but protected thus as described by galvanism, paint,
or other method, the tie when taken down with the scaffolding would be
practically fit to be used again for the same purposes as aforesaid and described
on scaffolding structures or erections; also for a still further lengthy period,
the tie could be used, a great advantage to users to whom economy is a factor
to be largely studied on small or extensive structures such as scaffolding for
buildings, bridges temporary or permanent stands and the like.
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 18:
(1) The construction of an apparatus to afford a safe, effective, and ready
method for fastening scaffold poles together, arranged in the form of half bands,
these having series of projecting points thereon and operating substantially as
hereinabove described and set forth
(2) The construction and arrangement as hereabove, respectively with refer-
ence to and shewn in Fig's. 1 to 6 inclusive, and in Fig's. 6 to 10, inclusive of
the drawings annexed of the apparatus of the kind refered to in the preceding
claim.
(3) The combination of parts as hereinabove described and shewn in the draw-
ings forming an improved metallic tie for scaffolding and the like
Dated this 10th day of August 1899