Rivets or Bolts of any Metal Structure.
Year: 1885

page_text: Rivets or Bolts of any Metal Structure.
JOHN SAYERS WILSON 47 Northbrook Road Southampton (Foreman Boiler-
maker Union S.S. Co.) do hereby declare the nature of my invention for CUTTING
OFF THE HEADS OR POINTS OF RIVETS OR BOLTS OF ANY METAL STRUCTURE to be
as follows:-
Fig. I shows the position of invention using the head or point of rivet as a grip.
Fig. II shows the position of invention using the edge of plate as a grip. Figs. III.
& IV. shows the position of invention using edge of angle iron as a grip.
What I claim in this invention is marked A. & B. on drawings. In A. I claim
the manner the cutter is applied cutting off the head or point of rivet without the
aid of hammering. In B I claim the head of rivet, edge of plate, edge of angle iron
or any other abutment of any metal structure as a fulcrum.

page_text: Rivets or Bolts of any Metal Structure.
I JOHN SAYERS WILSON, of 47 Northbrook Road, Southampton, in the county
of Hants, Foreman Boilermaker, to the Union Steam Ship Company, 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:
Hitherto the heads or points of rivets or bolts of metal structures have generally
been removed by hammering by hand labour.
My invention relates to cutting off the heads or points of rivets or bolts of metal
structures by means of a machine or apparatus having a cutter and a grip operated
by suitable means, a bearing for the grip being obtained against a plate or other
suitable projection or abutment on the structure to be operated on.
In order to enable my invention to be fully understood I will describe by
reference to the accompanying drawing, suitable means for carrying my invention
into practice. Figure 1 represents an elevation partly in section of a machine
suitable for cutting off the heads or points of rivets or bolts according to my
invention; in this machine the cutter is operated by means of a screw having right
and left hand threads and adapted for use where the cutter is required to operate
upon rivets or bolts in running seams of boilers or the like; figure 2 is a similar
view to figure 1 but shewing the machine adapted for operating upon rivets or
bolts between the frames of ships or in like places; figures 3 and 4 are vertical
sections shewing arrangements of the machine when operated by hydraulic power.
In figure 1, a, represents a screw having right and left hand threads and
provided at each end with a square b, adapted to receive a handle for rotating the
same; A is the cutter for cutting off the heads c, of the rivets or bolts, the cutting
edge of which cutter is about the width of the diameter of the rivet head; B, is the
grip for bearing on or against the edge of the boiler or like plate d, to give a
purchase or bearing to the machine when the cutter A, is being operated as
bereinafter described; the cutter A, and the grip B, are provided with upward
extensions e, and f, having rotating nuts g and h, in which works the screw a; the
heads of the extensions e and fare slotted as shewn at i, to allow the screw to
assume an angular position, the nut g, is retained in the head of the extension e,
by means of a screw a¹, which can be removed so as to allow the cutter A to be
shifted inwards or outwards according to the position of the rivet to be cut ;
a screw j, serves to connect the cutter A and grip B; the said screw is situated in
a frame C forming part of the grip B and works in a circular nut b¹ in the cutter
and is operated from the edge of the grip B, in order to adjust the cutter to the
position of the rivet or bolt to be operated on; lugs c¹, are formed on the end of
the frame C and through these lugs small screws D, are adjustably inserted which
bearing upon the structure allows the machine to maintain an upright position.
By this construction, when it is required to cut off the head or point of a rivet
or bolt, the grip B, is placed in position against the plate d, (or like projection)
and the position of the cutter is adjusted to suit the distance of the rivet or bolt to
be cut, from the grip.

page_text: Supposing the parts of the machine to be in the position shewn in figure 1, if
the handle on one of the squares b, be turned in a direction to force the extension e,
of the cutter outwards, the cutter A, will thereby be forced inwards and will cut
off the head or point c, of the rivet, the grip B, mean while remaining vertical by
reason of the two screws D, passing through the lugs c¹, and bearing upon the
boiler plate or the like.
The machine shown in figure 2, is similar to that shown in figure 1, except that
both the grip B, and the cutter A, are moveable and the screw a, always remains
in the same position; the grip and cutter are jointed at n, and the handles being
operated the grip and cutter are forced outwards and the grip is thereby caused to
bear upon the back of the plate d, (or the like) and the cutter will cut off the
head c, or point of the rivet or bolt.
In order to adjust the machine to the distance between the rivet to be cut and
the fulcrum I form the grip B, hollow and screw threaded to receive a corre-
spondingly screw threaded projection E, on the lever f; d¹ and d², are set screws
for fixing the grip B and cutter A respectively.
When operating the machine by hydraulic power as shewn in figure 3, the grip
and cutter act in a somewhat similar manner to that herein before described and
shown in figure 2; the cutter A, is forced outwards by the pressure caused by
operating the handle p, of a pump, the piston of which draws in liquid through a
valve r, and forces it out through a valve so as to act on the ram or plunger t, of
the cutter A, and thereby cut off the rivet or bolt head; by then turning a set
screw or valve u, the liquid can pass back into the chamber v, when the ram or
plunger t, is pressed back into its former position by means of a spring w.
Figure 4 is a machine similar to that shewn in figure 3 but adapted to utilize a
projection such as the edge of a boiler plate or the like as a fulcrum; the position
of the grip is adjusted by means of a serrated arm F, which engages with corre-
sponding serrations E in the grip B, and which is released by means of a set
screw d¹, when the grip B can move freely along the arm F to the required
position; the arrangements of pump, plunger, and valves are substantially the
same as those herein before described when referring to figure 3 and therefore need
no further description.
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
1. A machine for cutting off the heads or points of rivets or bolts of any metal
structure, such machine having a cutter and a grip operated by suitable means, the
grip obtaining a fulcrum against any suitable abutment or projection on the
structure substantially as herein before described and represented in the accom-
panying drawing.
2. The improved machines for cutting off the heads or points of rivets or bolts
of any metal structure as hereinbefore described and represented in the accom-
panying drawing.