Fasteners of Driving Belts.
Year: 1884

page_text: Fasteners of Driving Belts.
I, WILLIAM GADD, of 64 Barton Arcade, Manchester, Civil and Consulting
Engineer, do hereby declare the nature of my invention for "IMPROVEMENTS IN
THE CONSTRUCTION OF WASHERS AND NUTS FOR THE FASTENERS OF DRIVING
BELTS," to be as follows:-
The improvements consist in so forming washers, and nuts used in connection
with the fasteners of driving belts for tightening up the bolts thereof, and have for
their object the avoidance of a projecting nut which has been found in practico to
be an inconvenience.
To effect this and to carry out my improvements I form the washer with a
recess on its outer face into which takes the flange of a peculiar nut, in such
manner that when screwed up the upper face of the nut projects very little or
none at all above the face of the washer.
The nut is formed of what may be termed a barrel having a flange thereto.. The
barrel portion passes through the hole in the washer, and the flange lies in the
recess therein, or it may be as a modification on the surface thereof.
The barrel portion may or may not extend beyond the thickness of the washer;
but by preference I cause it to do so, and I prefer to construct the barrel cone
shaped, so that the portion of the same passing beyond the washer may more
readily enter the hole in the belt through which passes the bolt.
The flange has a notch or notches cut therein to enable the nut to be turned by
means of a suitably formed key, or by a powerful scrow driver if need be. These
notches may be variously formed or the end may be attained by two or more holes
drilled or formed in the face of the flange of the nut; or the flange may be formed
to fit any suitable key.
Either the flango of the nut or the rim of the recess in the washer or both may
be provided or not with suitable slight projections or undulations for the purpose
of preventing the nut from coming unscrewed during use. And the improvemonts
may be employed in connection with either plain or spiked or roughend surfaces
on the faces of the washer or bolt, coming in contact with the driving belt ends
oporated upon, and the washers may be either circular, cliptical, or other figure,
without departing from the peculiar character of the invention, which mainly
consists in the use of a nut in combination with a washer in connection with
fasteners for driving belts, such aut having a conical or other formed barrel and a
flange; the barrel portion passing through the hole in the washer, and the flange
resting in a recess formed in the washer for that purpose, or on the surface of such
washer as a modification.

page_text: Improvements in the Construction of Washers and Nuts for the
Fasteners of Driving Belts.
I, WILLIAM GADD, of 64 Barton Arcade, Manchester, Civil and Consulting
Engineer, do hereby declare the nature of my invention for "IMPROVEMENTS IN
THE CONSTRUCTION OF WASHERS AND NUTS FOR THE FASTENERS OF DRIVING
13
BELTS and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:—
The improvements consist in so forming washers and nuts used in connection
with tho fasteners of driving belts for tightening up the bolts thereof, and have
for object the avoidance of a projecting nut which has been found in practice to be
an inconvenience.
To effect this and to carry out my improvements, I form the washer with a 1
recess on its outer face into which takes the flange of a peculiar nut, in such
manner that when screwed up the upper face of the nut projects very little or
none at all above the face of the washer.
The nut is formed of what may be termed a barrel having a flange thereto.
The barrel portion passes through the hole in the washer, and the flange lies in the 1
recess therein, or it may be, as a modification, on the surface thereof.
The barrel portion may, or may not, extend beyond the thickness of the washer,
but by preference I cause it to do so, and I prefer to construct the barrel cono
shaped, so that the portion of the same passing beyond the washer may more
readily enter the hole in the belt through which passes the bolt.
The flange has a notch, or notches, cut therin to enable the nut to be turned by
means of a suitably formed key, or by a powerful screw driver if need be. These
notches may be variously formed, or the end may be attained by two or more
holes drilled or formed in the face of the flange of the nut, or the flange may be
formed to fit any suitable key.
Either the flange of the nut or the rim of the recess in the washer, or both, may
be provided with slight projections or undulations for the purpose of preventing
the nut from coming loose during use. And the improvements may be employed
in connection with either plain or spiked or roughoned surfaces, on the faces of the
washer or bolt coming in contact with the driving belt ends operated upon, and the
washers may be either circular, eliptical, or other figure without departing from
the peculiar character of the invention.
But that the improvements may be better understood I will, by the aid of the
accompanying drawings, proceed more fully to describe means employed by me.
DESCRIPTION OF DRAWINGS.
Figs. 1. 2. 3. and 4. are sections of washers and nuts in position, constructed in
accordance with my invention; and Figs. 5. 6. 7. and 8, are plan views of the
The same letters indicate corresponding parts wherever they occur.
same.
a, a, is the washer which may be round, oval, square, oblong, or other form, and
may be provided with one or more nuts as may be found requisite, and may be
hinged or not to suit the joint of the belt.

page_text: A hinged form is shewn in Figs. 4, and 8. In case of hinged, Figs. 4 and 8, or
oblong washers, Fig. 3 and 7, a butt joint may be made using a separate bolt,
or bolts, through each end of the belt, otherwise a lap joint may be adopted as
shewn in Figs. 1. 2. 5 and 6. In the case of wide belts either wide washers with
double or multiple bolts and nuts may be used, or two or more separate sets of
washers and nuts and bolts may be employed. In all cases, more especially those
of elongated form, the washers may be straight as shewn, or formed in any
convenient curve to suit the drum around which the belt passes.
b, b, is the nut, the barrel or body of which passes through the washer, and rests
thereon at the overlapping flange at the upper part. 61, 6¹ are the notches cut in
the nut for the insertion of a suitable screw-key. The form of such notches may
be varied considerably.
The belt joint, together with the nut, is shewn in dotted lines, any form of bolt
being capable of use in combination with the washers and nuts shewn and
described.
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
The construction and employment of a nut in combination with a washer in
connection with fasteners for driving belts, such nut having a conical or other
formed barrel and a flange, the barrel portion passing through a hole in the
washer, and the flange resting upon such washer or in a recess formed therein for
the purpose and in manner substantially as shown and described.
Da thin 10th 1-800-