Improvements in Machines for Making Pipe Clips.
Year: 1892

page_text: Date of Application, 26th Aug., 1892-Accepted, 8th Oct., 1892
COMPLETE SPECIFICATION.
Improvements in Machines for Making Pipe Clips.
[Communicated from abroad by HERBERT N. FENNER, of Providence, Rhode
Island, United States of America.]
I, HENRY HARRIS LAKE of the firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings in the County of Middlesex, 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 :-
This invention relates to a machine for making spring clips for attaching pipes
to the walls of a building, and it consists in the improved construction and arrange-
ment of the several parts of the machine, and in the improved construction and
operation of the dics, as hereinafter fully set forth.
Fig. 1, represents a front elevation of the machine.
Fig. 2, represents a side elevation, shewing the feeding mechanism.
Fig. 3, represents a detail vertical section, taken in the line 3, 3, of Fig. 1,.
shewing the cross-head in its highest position.
Fig. 4, represents a vertical section in the same line, with the cross-head in its
lowest position.
Fig. 5, represents a back view of the lower portion of the clearing lever.
Fig. 6, represents a vertical section taken in the line 6, 6, of Fig. 1.
Fig. 7, represents a perspective view of the spring clip.
Fig. 8, represents a top view of the dies and the attached parts, separate from
the die holding bed.
Fig. 9, represents a detail front elevation of the forming jaws and plunger,
showing the cutting.off plunger in its lowest position.
Fig. 10, represents a vertical section taken in the line 10, 10, of Fig. 8.
Fig. 11, represents a vertical section taken in the line 11, 11, of Fig. 8.
Fig. 12, represents a detail vertical section, shewing the cutting off plunger, the
cutting off die, and also the bending plunger.
Fig. 13, represents a top view of the clearing plate for the cutting off plunger.
Fig. 14, represents an under view of the cutting off plunger.
Fig. 15, represents an enlarged top view of the cutting off dic.
In the accompanying drawings, A represents the frame of the machine, B the
driving shaft and C the cross-head, which is connected with the crank D, by means
of the connecting rod E. The adjustable holder F, for the cutting off plunger G,
is held in the dove-tailed groove a, by means of the set screw b, and the said plunger G,
is provided with the downwardly extending lips c, c, the cutting off punch d, and
also with the circular punches ff, and is held in the socket g of the holder F, by
means of the set screw h, the punches f, f, being secured to the cutting off plunger G,
by means of the set screws i, i, so that the said punches will partake of the and
down movement of the plunger G, the cutting off cutter d being removably held in
the grooves j,j, of the lips c, c, by means of a pink shown in Fig. 1.
up
The cutting off and punching die I, is held in the dove-tailed groove l, formed
between the parallel pieces m, m, which are secured to the bed J by means of the
bolts n, n, and the said die is held in its proper position in the groove l, by means
of the set screw o.
The die I, shown in plan view in Fig. 15, is provided with the opening p, adapted'
to receive the cutter d of oppositely concaved cross-section as shown in Fig. 14, so
as to cut off the clip-blanks, with rounded ends, and with the perforations at each
side of the opening p, to receive the punches f, f, for making the holes in the ends
of the blank, and over the die I, is placed the guiding and clearing plate s, the said
plate being held in position over the die, by means of the set screws t, (, and.

page_text: in
provided with the opening, adapted for the passage of the cutter d to the die J,
and with the openings v,, adapted for the passage of the punches f, f, to the
same; the said plate being also provided with the groove w, adapted to receive
and guide the strip of iron, from which the clips are to be formed, the said strip
being fed through the groove w, to the bending plunger K, and the bending jaws L,
by means of the geared feed rolls M, M, which are operated from the shaft B, by
means of the adjustable crank y, connecting rod a', and the reciprocating rack 6,
the said rack being made to engage with the gear c¹, which is loose on the shaft d',
of the upper feed roll M; and to the side of the said gear is pivoted the dog el,
which engages with the ratchet wheel ", secured to the shaft d, of the feed roll,
thus causing the forward movement of the strip a, at cach revolution of the shaft B.
The bending plunger K, is attached to the lower end of the vertically recipro-
cating bar N, which has a sliding bearing g', in the cross-head C, by means of the
shank, which enters the socket i, and is secured therein by means of the set
screw j', the said bar being connected with the crank O, on the shaft B, by means
of the connecting rod P. The bending plunger K is narrowed in at its base k
order that the opening of the clip will be contracted, so that the clip will spring
upon the pipe, and hold itself in position while it is being secured to the wall of the
building, and the rounded end of the said plunger is provided with a groove A,
which is adapted to receive the lower clearer m² for forcing the finished clip a³,
from the plunger. The bending jaws L, L, are pivoted to the adjustable bearing
blocks n', which are held in set position by means of the screws.o', the adjustment
of the said blocks being effected by means of the right and left hand screws p³,
located at each side of the said jaws, the said screws passing through the nut studs q',
attached to the bearing blocks »'. Compressed springs, are arranged at the
opposite sides of the jaws L, L, the said springs serving to separate the jaws, and
the amount of opening between the said jaws, may be regulated by means of the
adjusting stop screws s' and ', or otherwise. The jaws L, L, are faced with the
detachable bars of hardened steel ', ', which serve to take the wear caused by
the bending of the blank, over the corner of the said jaws, the said bars being
secured by means of screws, or otherwise; and each of the said jaws L, L, is
provided with an inwardly inclined horn, adapted to engage with one of the
pins w', which project from the rear side of the base of the bending plunger K, so
that, upon the downward movement of the said bending plunger, the pins w, w, by
coming in contact with the inclined surfaces r¹, of the horus v', ', will force the
jaws L, L, toward each other so as to cause the inward bending of the sides of the
clip a² into the corner recesses 63, 62, of the bending plunger.
Upon the stud c, at the back of the machine, is pivoted the clearer lever R,
provided at its upper end with the roller d, which engages with the cam S, upon
the shaft B, the said roller being held in contact with the said cam, by means of
the spring e. The lower end of the clearer lever R, is loosely held by the forked
guide T, which is adjustably secured to the bed J, by means of the slot f' in the
base of the guide T, and the screw 92, and serves to limit the backward movement
of the clearer lever. To the lower end of the clearer lever is attached the clearer m²,
which is adapted to enter the groove l, in the bending plunger, the said clearer
being adjustably held by means of the bolts 2, which pass through the vertical slot
in the clearer lever. The side clearers 1, 2, are attached to the studs k2, 2, which
are adjustably held in the horizontal slots 12, 12, of the clearer lever, by means of
the nuts m, m2, and by this means the clearers are made adjustable for clips of
different sizes.
The hoop iron strip a, is guided in its entrance to the machine by means of the
adjustable side guides m, n, the said guides being provided with the groove o
adapted to receive the edge of the strip, and with the right and left hand screws ²,
which are adapted to adjust the guides n², n², for iron strips of different widths, the
said guides being held in position upon the plate q², by means of the wires r², which
pass loosely through suitable perforations made in the said guides, and are also.
secured in suitable perforations made in the longitudinal ribs, of the plate *,

page_text: which is held in the grooves 1, 1, of the parallel pieces m, m, by means of the set
screws t
Upon starting the machine, the strip will be fed forward over the cutting off
and punching die I, so that the blank u, will be punched at one end, and severed
from the strip, upon the downward movement of the cutting off plunger G; and
the forward end of the succeeding blank will be punched preparatory to the
subsequent feeding movement of the rolls M, M. The blank when cut off, will
rest in proper position over the bending jaws L, L, so that upon the downward
movement of the bending plunger K, the blank will be bent in the required form,
as shown in Fig. 1, the engagement of the pins to¹, wl, with the horns ', ' of the
pivoted jaws L, L, serving to force the jaws inwardly at the completion of the
downward movement of the bending plunger, thus causing the sides of the clip to
be forced inwardly into the corner recesses 62, 62, of the bending plunger, the
shoulders w², w², of the bending plunger operating at the same time to bend down
the ears of the clip a², as shown in Fig. 1, and the inward bending of the sides of
the clip against the sides of the bending plunger will cause the withdrawal of the
clip with the said plunger, upon its succeeding upward movement, and during the
said upward movement, the clearers will be brought forward by the action of
the cam S, to cause the removal of the finished clip a³, from the bending plunger,
as shown in Fig. 3.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed as communicated to me by
my foreign correspondent I declare that what I claim is :-
:-
1. In a machine for making pipe clips, the combination with the cutting off
plunger, provided with the opposite punches, and the intervening cutter, of the die
provided with the perforations adapted to receive the punches, and the intervening.
perforation adapted to receive the cutter, substantially as described.
2. In a machine for making pipe clips, the combination with the cutting off
plunger provided with the opposite punches, and the intervening cutter, of the die
provided with the perforations adapted to receive the punches, and the intervening
perforation adapted to receive the cutter, and the clearing plate provided with the
guiding groove for the metal strip, substantially as described.
3. In a machine for making pipe clips, the combination with the cutting off
plunger, the cutting off die, and means for feeding the metal strip to the same, of
the adjustable grooved side guides, for holding the strip in a central position,.
substantially as described.
4. In a machine for making pipe clips, the combination with the bending
plunger having opposite corner recesses at its base, of the pivoted jaws, and means
for forcing the said jaws together, to press the sides of the clip into the said
recesses, substantially as described.
5. In a machine for making pipe clips, the combination with the bending plunger
having opposite corner recesses at its base, of the adjustable pivoted jaws, means.
for forcing the said jaws toward each other to press the sides of the clip into the
recesses of the bending plunger, the spring for throwing the jaws outward, and the
adjustable rests for limiting the outward movement of the jaws, substantially as
described.
6. In a machine for making pipe clips, the combination with the bending
plunger provided with the opposite corner recesses at its base, and the central
groove for the clearer, of the pivoted jaws, means for forcing the said jaws toward
Cach other to press the sides of the clip into the recesses of the bending plunger,
and the clearer lever provided with the clearers adapted to force the finished clip.
laterally from the bending plunger substantially as described.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant..