IMPROVEMENTS IN PUNCHING AND RIVETTING MACHINES
Year: 1884

page_text: "
I, WILLIAM FREDERICK GILMER of Gosforth in the County of Northumberland
Engineer, do hereby declare the nature of said invention for IMPROVEMENTS IN
PUNCHING AND RIVETTING MACHINES" to be as follows:-
My invention relates to improvements in machines for punching or rivetting by
hydraulic, steam, compressed air or other power, (and especially to improvements
upon the punching and rivetting machine provisionally protected by me N° 3586
dated Feb 1884); by which the punching or rivetting can be effected in corners and
other portions of large structures, such as ships bridges or girders inaccessible to
ordinary rivetters, (except those requiring to be moved for each hole or rivet) and
to my improved machine above named, and also by which the transverse travel of
the latter machine may be increased when desirable.
The main structure of the machine is similar to that described in my previous
application with the following modifications which I consider improvements viz:-
In.order to provide for a greater range of transverse travel (as for instance two
horizontal seams of a ship) I propose to place the punching or rivetting cylinder
and the punching die, or "holding up" tool to travel by screw or other gearing in
a frame composed of girders such frame travelling longitudinally by suitable
gearing on the parallel girders instead of placing them in an eccentric disc enclosed
in a strap.
In order that the machine may be more readily transferred, without loss of time,
from one range of working to another range, I propose to make the end cross frames
with the tension bolts, in duplicate, so that one set (of 2 pairs) may be fixed in
position by the tension bolts in advance of the machine which can be transferred
from the cross end frames, over the finished work, to those ready to receive it to
commence a new range of work. The fixing of the end frames and bolts in advance
is easily done by boys or labourers and the time of the skilled workman is saved
comparatively no interruption taking place. In this arrangement the adjusting
brackets, to fix working distance, are provided on and form part of each set of the
end cross frames.
To apply this tool to punching or rivetting in places inaccessible, or difficult of
access, to ordinary rivetting machines or such as that described in my previous
application I attach, according to one mode of applying my invention, the ram of
the punching, or rivetting cylinder freely to an intermediate point in a lever of the
3rd order, one end of which carries the tool and the other end rests and slides in a

page_text: fulcrum, the punching die or holding up tool (as the case may be) being fitted with
an adjusting screw in the end of a corresponding lever which is fixed to a block
travelling in a frame similar to that which carries the punching or rivetting cylinder
the opposite end of lever resting and sliding in a fulcrum.
The projecting ends of these levers carrying the punching or rivetting tools (as
the case may be) enable the machine to be applied to places which it could not
otherwise reach, and the machine being once fixed the range of the levers can be
regulated by the transverse motion of the cylinder and opposite block.
It is obvious that these improvements may be applied to the machine described
in my previous application (N° 3586 Feb 19 1884) to enable it to perform work in
places otherwise inaccessible to it and the alternative levers with their connections
may be arranged so as to readily replace the direct acting tools in that or any other
portable machine capable of doing a considerable range of work without being
shifted.
Although I have described my invention as applied by a lever of the 3rd order
the principle of operation may be equally carried out by the ram taking hold of
one end of the lever and the rivetting or punching tool at the other end the move-
able fulcrum being at one intermediate point (forming a lever of the 1st order) or
the hydraulic cylinder may be fixed immediately over the punching or rivetting
tool the moveable fulcrum being carried by the sliding block in transverse frames.
The holding up tool, in rivetting may in some cases be operated by hydraulic
power the modes of application to the lever in any form being so obvious as to need
no explanation.
As an important auxiliary to this rivetting machine applicable also to that
previously referred to (N° 3586 Feb 1884) it is proposed to apply an apparatus
worked by bydraulic or other pressure to follow the rivetting tool and dress off
countersunk rivets flush with the surface of plate consisting of a small hydraulic
cylinder at right angles to the axis of the rivetting cylinder working a reciprocating.
crank on end of a spindle, parallel with axis of main cylinder, and carrying &
shearing tool working radially to dress off the projecting portion of rivet after being
closed.
An internal screw in the spindle puts the shearing tool into position for dressing
off the projecting portion or raises it to clear the rivet heads when not counter-
sunk.

page_text: I WILLIAM FREDERICK GILMER of Gosforth in the County of Northumberland,
Engineer, do hereby declare the nature of said invention for "IMPROVEMENTS IN
PUNCHING AND RIVETTING MACHINES and in what manner the same is to be
performed to be particularly ascertained and described in and by the following
statement:
"
My invention relates to improvements in machines for punching or rivetting by
hydraulic steam, compressed air or other power, (and especially to improvements
upon the punching and rivetting machine provisionally protected by me No 3586
dated February 1884, completed November 19th 1884 :) by which the punching or
rivetting, can be effected in corners and other portions of large structures, such
as ships bridges or girders inaccessible to ordinary rivetters (except those requiring
to be moved for each hole or rivet) and to my improved machine above named ;
and also by which the transverse travel of the latter machine may be increased
when desirable and its removal and refixing readily effected.
The main structure of the machine is similar to that described in my previous
application with the following modifications which I consider improvements,
namely:
In order to provide for a greater range of transverse travel (as for instance two
horizontal seams of a ship) I propose to place the punching or rivetting cylinder
and the punching die or "holding up" tool to travel by screw or other gearing in
a frame composed of girders such frame travelling longitudinally by suitable gearing
on the parallel girders instead of placing them in an excentric disc enclosed in
a strap.
In order that the machine may be more readily transferred, without loss of time,
from one range of working to another range, I propose to make the end frames, or
bracket girders with tension bolts, in duplicate, so that one set (of 2 pairs) may be
fixed in position by the tension bolts in advance of the machine which can be
transferred from the end frames, or bracket girders over the finished work, to those
ready to receive it, to commence a new range of work. The fixing of the end
frames or bracket girders and bolts in advance is easily done by boys or labourers
and the time of the skilled workmen is saved comparatively no interruption taking
place. In this arrangement the adjusting struts or brackets, to fix working
distance, are provided on and form part of each set of the bracket girders or end
frames.
To apply this tool to punching or rivetting in places inaccessible, or difficult of
access, to ordinary rivetting machines, or such as that described in my previous
application I attach according to one mode of applying my invention the ram of
the punching or rivetting cylinder freely to an intermediate point in a lever of the
third order one end of which carries the tool and the other end rests and slides in
a fulcrum the punching die or holding up tool (as the case may be) being fitting
with an adjusting screw in the end of a corresponding lever which is fixed to a
block travelling in a frame similar to that which carries the punching or rivetting
cylinder the opposite end of lever resting and sliding in a fulcrum.
The projecting ends of these levers carrying the punching or rivetting tools (as
the case may be) enable the machine to be applied to places which it could not
otherwise reach and the machine being, once fixed the range of the levers can be

page_text: On the accompanying 3 sheets of drawings I have illustrated various forms of
machines constructed according to my invention which is capable of several other
modifications without departing from the principle upon which it is founded. The
machine in all forms is described as for rivetting, but it will be understood that its
operation for punching is similar.
On Sheet 1. Figures 1, 2 and 3 shew a side elevation plan and end view
respectively of a machine adapted for doing a considerable range of work within
the area enclosed by it before requiring to be moved, the travel of the rivetting
tools transversely being much greater than in the machine described and shewn
in my Patent No 3586 February 19th 1884.
1. 1ª are the longitudinal girders united at ends by cross girders 2. 2-3 and 3ª
are the bracket girders, fixed to the structure to be rivetted by tension bolts 4. 4.,
and having on them struts to regulate working distance and projecting horns with
collars or beads 5. 5ª under which the adjustable frames 6. 6ª on longitudinal
girders close up by screws 7. 7 and hold the machine in position, 8. 8ª are cross
frames moving on the longitudinal girders by hand rack and pinion gear. One of
these frames 8 carries the hydraulic cylinder 9, having a ram fitted with die 10.
the other 8ª, the holding up tool 101 (adjustable by a screw and hand wheel) each
fixed in a head 11 and 11 travelling by rack and pinion gearing transversely on
the cross frames 8. and 8*.
On Sheet 2. Figures 1. 2 and 3 shew a side elevation plan and end view
respectively of a machine adapted for rivetting in places beyond the area enclosed
by means of projecting levers. The longitudinal girders 1. 1-Cross girders 2. 2ª
bracket girders 3. 3ª tension bolts 4. 4. adjustable frames 6. 6°, Cross frames 8. 8°
heads 11. 11ª and hydraulic cylinder 9 are the same as before described, but instead
of the rivetting and holding up tools 10 and 10 being carried by the ram and
opposite head 11 they are attached to the outer ends of the levers 12 and 12ª, the
lever 12 being freely attached to an eye on end of hydraulic ram and the lever 12ª
to an eye on the head 11ª the other ends of the levers being held by guides 13
and 13, attached to cross frames 8. 8ª, which form the fulcrums for the levers in
their varying positions when closing a rivet. The transverse travel of the
heads 11. 11 in cross frames gives the projecting ends of levers which carry the
rivetting die and holding up tool a considerable range outside the area enclosed by
machine and enable it to close rivets in places otherwise inaccessible to it. Provision
is made by the free attachment of levers to the ram and opposite head and also to
the girders forming the fulcrums for keeping the rivetting and holding up tools at

page_text: right angle to surface of work on curves. The levers may also in some cases be so
attached to hydraulic ram, guides and opposite head as to have a horizontal radial
movement.
Figures 1 and 2 (Sheet 3) shew a side elevation and end view of a machine
constructed with the same object as that just described but having the hydraulic
cylinder with rivetting tool and the holding up tool fixed at outer ends of levers.
The frame work of machine, bracket girders, tension bolts &c. are the same as
before but the levers 12 and 12 are fixed to an eye or stud 14 and 14* upon the
heads 11 and 11* respectively their tail-ends being held by guides 13 and 13" also
attached to the heads 11 and 11 which form the fulcrums of levers when closing
a rivet. The hydraulic cylinder 9 is formed on or attached to outer end of lever 12
and carries the rivetting tool 10, the holding up tool 10 being carried with
adjustable screw in outer end of lever 12ª. Working on curves is provided for as
before described by the free attachments of the levers.
Figure 3 (Sheet 3) shews a plan and Figure 4 an end view of a machine
constructed also to act by levers projecting longitudinally (instead of transversely)
to enable rivetting to be done beyond the range of machine in that direction.
Here it is necessary in order to clear the bracket girders 3, 3* and tension bolts 4
to carry the levers 12 and 12ª outside the main frame work of machine and curve
them toward the structure to be rivetted.
The levers 12 and 12" are attached by bolts to brackets 13, 13 on the backs of
the heads 11 and 11° and their tail ends are supported against abutment studs 15
and 15a fitted with adjustment screws and nuts. The lever 12 carries the hydraulic
cylinder 9 and rivetting tool 10. and the lever 12ª the adjustable holding up
tool 10º.
In every form of the machine which I have described and illustrated, or in any
modification in which its principle may be carried out, an important feature consists
in the mode of fixing the machine to the structure to be rivetted by means of
the bracket girders 3 and tension bolts 4, which being in duplicate can be fixed in
advance and to which the machine can be quickly transferred from a completed to
a fresh range of work and there to be securely attached in working position. These
brackets are suspended from the structure by straps 16 (or as I prefer by a short
chain) and temporary bolts to take the transverse strain of their weight off the
tension bolts and the machine is suspended by the shackles 17 while being removed
or when at work.
In any of the forms of the machine the holding up tool may be carried by the ram
of another hydraulic cylinder instead of being a fixed point when such an arrange-
ment may be desirable.
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 The improvements in portable punching and rivetting machines capable of
operating over a considerable area longitudinally and transversely before requiring
to be moved (such as described and illustrated in my patent Nº 3586 February 19th
1884) consisting of bracket girders secured in position by tension bolts passing
through holes in the structure to be punched or rivetted and having struts to
regulate working distance and projecting horns with collars or heads to take
adjustable sliding frames on main girders; cross frames; travelling longitudinally
on main girders, fitted with transverse heads carrying respectively the hydraulic
(or other) cylinder, and punching or rivetting tool, and punching die or holding up
tool arranged in combination with main and cross girders and operating substan-
tially as described and shewn by Figures 1. 2 and 3 Sheet 1.
2nd The application to such portable punching or rivetting machines of levers
attached to the ram of hydraulic (or other) cylinder and to opposite transverse
heads, and projecting so as to carry the punching or rivetting tools beyond frame of

page_text: machine arranged and operating substantially as described and shewn by Figures 1,
2 and 3 Sheet 2.
3rd The application to such portable punching or rivetting machines of levers
attached to the transverse heads and having at their projecting ends respectively
the hydraulic (or other) cylinder with punching or rivetting tool, and the punching
die or holding up tool, arranged and operating substantially as described and shewn
by Figures 1. 2. 3 and 4 Sheet 3.
W. LLOYD WISE,
Applicant's Agent.