to Cloth Finishing Machines.
Year: 1889

page_text: Date of Application, 6th May, 1889
Specification Accepted, 8th June, 1889
to Cloth Finishing Machines.
I, JOSEPH JAY SCHOLFIELD, of 81 Westminster Street Providence, Rhode Island,
United States of America, manufacturer of cloth finishing machines, do hereby declare
the nature of my invention for IMPROVEMENT IN MACHINES FOR GUIDING THE EDGES
OF WEBS OF CLOTH TO CLOTH FINISHING MACHINES, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the following
statement:-
The object of my invention is to provide an improved mechanism for guiding the
edges of the web in a true line onto the chain hooks of drying or tentering machines,
or to the feeding rollers of various other cloth finishing machines; and my invention
consists in the combination with a power dispensing mechanical movement adapted
for reverse action, of a detector which engages frictionally with the running web so
as to move therewith when in engagement, a guide roller held upon a pivoted head or
frame, and the pivoted head or frame supporting the guide roller and geared with the
power dispensing mechanical movement. My invention also consists in the com-
bination with a power dispensing mechanical movement adapted for reverse action, of
a detector which engages frictionally with the running web so as to move therewith
when in engagement, a guide roller held upon a pivoted head or frame the pivoted
head or frame supporting the guide roller and geared with the power dispensing
mechanical movement, and a supplementary guide for holding the edge of the web
back to the true guiding line, after the said edge has passed the frictionally engaged
detector.
My invention also consists in the combination with a power dispensing mechanical
movement adapted for reverse action, of a detector the movement of which serves to
direct the required action of the power dispensing mechanical movement, and an
endwise moving guide roller adapted to move in opposition to the in and out varying
movement of the edge of the web. My invention also consists in the combination
with a power dispensing mechanical movement adapted for reverse action, of a
detector which serves to direct the required action of the power dispensing mechanical
movement, a guide roller held upon a pivoted head or frame, the pivoted head or
frame supporting the guide roller, and an endwise moving guide roller adapted to

page_text: move in direct opposition to the in and out movement of the edge of the web. My
invention also consists in the improved construction of several parts of the cloth
guiding machine, and in the combination with the spreading chain guides and hook
chains of a cloth drying or tentering machine and the attached cloth guiding
machines of a lever connection between the free ends of the chain guides, whereby
when one of the said guides is moved either inwardly or outwardly, the opposite chain
guide will have a corresponding inward or outward movement to accommodate the
guiding machines to the varying width of the web.
Fig. 1, represents a plan view of my improved cloth guiding machine.
Fig. 2, represents an elevation taken from that side of the machine which is toward
the web
Fig. 3, represents a vertical section taken in the line xx, of Fig 1
Fig. 4, represents an elevation taken from the delivering side of the machine
Fig. 5, represents a detail section taken in the line xx, of Fig 4.
Fig. 6, represents a side elevation of the detector employed for directing the action
of the power dispensing ratchet movement in one direction, to change the position of
the guide roller.
Fig. 7, represents a section of the same taken in the line
Fig. 8, represents a side elevation of the detector employed for directing the action
of the power dispensing ratchet movement in the opposite direction to that produced
hy the action of the detector shown in Fig 6.
Fig. 9, represents a section of the same taken in the line c
Fig. 10, represents a side elevation of a single detector which is adapted to direct
the movement of the power dispensing ratchet mechanism in either direction,
according to the movement of the running edge of the web from the proper guiding
line.
Fig. 11, represents an enlarged top view, and end view, of the notched bar which
engages with the detector, showing the opposite arrangement of the notches upon the
edges of the bar.
Fig. 12, is a detail plan view showing the preferred form of attachment to the guide
bars of a cloth drying or tentering machine.
In the accompanying drawing, A represents the bed plate of the machine, B is an
upwardly projecting hub, within the cavity of which is pivoted the roller_temple C,
which consists of the pivoted head or frame c, and the guide roller a, having its
periphery set with spurs as in the rollers of loom temples, the said roller being
loosely-held upon the screw stud-b, which is secured to-the-head c, the said head
being provided with the guide fingers d d' the outer guide finger d being made
longer than the inner guide finger d', and also having an upward and inward
bend which serves to hold the edge portion of the web inwardly to produce a
slight lengthwise trough fold in the same, which can be readily pulled out by the
action of the guide roller a thus allowing the guide roller to draw the web outward
from a comparatively loose and contracted condition; and a change in the angular
position of the guide roller a by the movement of the head C, will serve to cause a
corresponding change of position in the running edge of the web.
To the pivot stem e, is firmly secured the segment gear D, which engages with the
rack piece E, the said rack piece being frictionally held in the groove f of the
reciprocating slide F, by means of the screw g, washer h, and spiral spring 1, the said
screw being made to pass through the slot, in the said slide.
To the upper side of the shank portion of the rack piece, is secured a ratchet
member formed by the steel bar G, provided on its opposite sides with notches n²,
which, at the opposite sides of the said bar, are inclined in opposite directions, as
shown in Fig. 11, thus forming a proper ratchet member of the rack piece.
Within the bearing hub k formed upon a projection of the base plate A, is placed
the driving shaft H, upon one end of which is secured the driving pulley I, and a the
opposite end of the said shaft, is placed the crank pin l, from which, operative
connection is made with the slide F, by means of the connecting rod m; the said
slide being held for reciprocation upon the guide rod J. Upon the fixed rod K,
2
1

page_text: which is supported horizontally by means of the standards n and
0, is attached the
cylindrically curved plate L, at the base of which and loosely upon the said rod are
arranged the companion detector plates p and q, which are preferably constructed as
shown in Figs. 6 and 8, being each provided with spurs as r, r¹, for frictional
engagement with the edge of the fabric, and with a radial beveled edge s, which
serves to engage with the correspondingly beveled notches in the edge of the bar G.
The spurs r, r, are arranged to project slightly above the line of the surface of the
circular plate L, the said circular plate being secured to the rod K by means of the
bub a and screw 6, and operating to support and guide the edge of the web to
proper engagement with the said spurs of the detector plates. The detector plate p is
made nearly semi-circular in form, and is thus overbalanced at one side, so that, the
beveled edges, will fall by gravity into engagement with the notches n' upon the
edge t of the bar G. And the detector plate 7 is overbalanced at its upper end, so
that, the force of gravity will cause the beveled edges of the same to be thrown away
from the notches n¹ of the edge u of the said bar G, as shown in Fig 3, the upper
portion of the said detector plate 9 being in the said figure concealed by the inter-
vening detector plate p; and the gravitating movement of the detector plate 9 may
be limited by the edge s¹ which strikes against the edge of the bar G, the said
edges of the detector plate q, being so rounded, as not to be capable of engagement
with the notches of the said far; the two plates p and q being also connected to each
other by means of a pin o' and slot p', which will permit a certain restricted
movement of the said plates relatively to each other At the upper end of the
standard n, is secured the bar v, by means of the screws w to, and at one end of the
bar t, is placed the fixed stud, upon which is placed the loosely revolving guide
roller a¹, which is set with spurs as in the roller a, and provided with an annular
groove 61, which receives the guiding fork c¹, the said guiding fork being attached to
the rack piece E and moving therewith, so that, whenever movement in either
direction is imparted to the said rack piece, a corresponding movement will be
imparted to the roller a¹ in the direction of its axis. Upon the screw stud d', secured
to the bar o, at the opposite side of the cylindrically formed plate L, is placed
the loosely revolving roller el, which is also preferably set with spurs as in the
case of the guide rollers a, a¹; and at the extremity of the bar v, is secured the
supplementary guide M, from which the edge of the web is to be delivered to
the cloth finishing machine.
•
The guide M is constructed with a lower jaw f¹, which is turned downward at its
outer end as shown in Fig. 4, to guide the entrance of the edge of the web between
the upper and lower jaws of the guide when first threading the machine. The
weighted upper jaw g¹ of the guide M is turned upward at its outer end, to
correspond with the opposite curvature of the end of the lower jaw, and is held
loosely upon the lower jaw f¹, by means of the screw studs ¹i, which screw into the
lower jaw and pass loosely through suitable perforations made in the upper jaw to
receive the same The upper jaw will thus rest with its full weight upon the lower
Jaw, and when the edge of the web is passed between the said Jaws, the upper jaw
will be raised along the side of the screw studs i¹, 1, according to the thickness of the
fabric. The edge of the web will thus be kept flat by the pressure of the
upper jaw,
and be prevented from curling over at contact with the sides of the screws 1,1 2²,
in this case are located at the proper line for delivering the edge of the web to the
cloth finishing machine, and slightly nearer to the axis of the web than the detector
plates p and q, so that, any slight variation in the running of the edge of the web at
the said detector plates, will be corrected by the guide M.
which
When the edge of the web is running through the machine, as shown by the broken
line, touching the spurs r, upon the detector plate p, only, and not the spurs pl
of the detector plate q, then the inclined edges of the detector plate p, which is
adapted for engagement with the notches of the edge t of the bar G will be carried by
the frictional action of the forwardly drawn edge of the said web, away from the said
notches; and the spurs of the detector plate 9 being unacted upon by the said edge
of the web, the said detector plate q will be held by gravity away from engagement with

page_text: the notches of the edge u of the said bar G, so that, in this case, the edge of the web
would be running in the proper guiding line, and no action of the power dispensing
mechanism will be produced to act upon the pivoted head c; but in case the edge of
the web should run inwardly from contact with the spurs r, then the force of gravity
acting upon the detector plate p, will cause the beveled edges of the said plate, to
drop into contact with the notches of the bar G, which bar partakes of the recipro-
cating movement of the slide F, and when the said slide and bar are moving in one
direction, the detector plate will stop the movement of the bar G with the slide F, and
thus cause a change in the relative positions of the slide and bar for the space of one
or more notches of the said bar, according to the relative length of the reciprocating
stroke of the slide F; and upon the reverse movement of the slide F and bar G, the
inclined form of the notches of the said bar will permit the bar to slide over the edge
of the detector plate; and upon the succeeding reverse movement of the slide F and
bar G, the detector plate will again engage with the notch of the bar G, and thus
cause a still greater change in the relative positions of the said bar and slide, until the
specific variation in the running edge of the web has been corrected; the changed
position of the bar G and rack E with relation to the slide F, serving to cause a
corresponding variation in the angular position of the guide roller a, and the axial
position of the guide roller a¹, which will conjointly tend to bring the edge of the
web back to the proper line. But in case the edge of the web should instead of
running inwardly from the proper line, extend outwardly, so as to engage with the
spurs of the detector plate g, the action of the running edge of the web upon the
said spurs will cause the inclined edges of the detector plate q, to be brought into
engagement with the notches of the edge u, of the bar G, which notches are oppositely
inclined to those of the edge t of the said bar, so that, upon such engagement, the
bar G will be cause to move in à reverse duection in the slide F, thus imparting a
reverse angular movement to the 1oller a, and a reverse axial movement to the
roller a', which movement will serve to bring the running edge of the web back to
the proper line, in which both of the detector plates are out of engagement with the
notches of the bar G.
Instead of employing the two detector plates as above described, a single plate
can be employed, which can be constructed as shown in Fig. 10, and in this case,
the action of the edge of the web upon the spurs r, will cause the beveled edge s²,
to engage with the notches of the edge u, of the bar G; and upon the inward
movement of the edge of the web away from contact with the spurs of the detector
plate, the said plate will turn by gravity, so that, the beveled edge, will engage
with the notches upon the edge t of the bar G to cause the movement of the said bar
in the opposite direction, to bring the running-edge of the web-back to the proper
line, but with the single detector plate there will be no point of rest between the
opposite points for movement, the detector plate being in almost constant engagement
either upon one edge or the other of the bar G.
a,
The pivotally held guide roller a, is so arranged with relation to its pivot stem e,
as to partake of an end wise movement whenever the same is acted upon by the
power dispensing mechanism, and the arrangement of the pivotally supported guide
roller for a more or less endwise movement according to its distance from the pivot
stem e, will serve to correct any specific variation of the running line of the edge of
the web quicker than would be possible with the roller a when set radially from its
pivoting point, for the reason that while the angular variation of the said guide roller
will serve to gradually bring the running edge of the web back to the required line, the
end wise movement of the said roller will effect the instant adjustment of the same,
and the farther the roller a, is set from its pivot stem the less will be the angular
variation of the said roller for any specific degree of endwise movement, until a
practical axial movement will be reached, I therefore include in my claim for a guide
roll moving end wise, a roller, as a, which is guided in a true axial line, and also a
roller as a, in which the required end wise movement is combined with an angular
movement upon a pivot, the said roller being set in a line tangential to the arc of
circular movement, and upon that side of the pivot stem, which is toward the point

page_text: for delivering the web to the cloth finishing machine The outer detector plate q is
provided with the attached guide t₁, which by projecting inward over the spurs r
serves to hold the edge of the web in close contact with the said spurs, so as to
impart a sure movement to the detector
"
The frictionally held oppositely notched bar G, and the reciprocating slide F which
holds the said bar, constitute the essential parts of a well known mechanical movement
with a
for oppositely changing the direction of the transmission of motive power,
capability of variable action in either direction through the diecting movement of an
indicating or governing device, which serves to stop the movement of the notched bar
in one direction and thus change its relative position with the reciprocating slide in
which it is frictionally held ; and the term " power dispensing mechanical movement
as employed in this specification, embraces the well known equivalents of the same for
changing the direction of the transmission of motive power in opposite directions
accompanied with variable action in those directions, devices of this class having been
heretofore employed as equivalents, and notably, in machines for operating the gate of
a water wheel to regulate the speed of machinery, in which the motive power is
variably dispensed to raise and lower the gate.
The attachment of my improved cloth guiding machines to the spreading chain
guides of a cloth drying or tentering machine, is shown in Fig 12, in which N is a
portion of the frame of the said drying machine, O, O. the spreading guides for the
hook chains P, P, which serve to carry the edges of the web in proper line through
the machine, the said guides being pivoted at the point k¹ and having their ends 1
carried inward, in order to stretch the web widthwise after the edges of the same are
engaged with the hooks. The guiding machines A' A' are attached to the fixed bars h¹ h¹,
which are secured to the spreading guides O, O, and operate upon the opposite
edges of the web to keep the same in proper line as they run onto the hook pins m¹ of
the chains, the fixed guide M being set in close proximity to the said hook pins. The
chains P, P, pass over the sprocket wheels Q, Q. which are held loosely upon a shaft R,
so as to slide thereon, but which are prevented from revolving upon the shaft by
means of the splines which enter corresponding grooves made in the hub of the
wheels Q, The hub e³, of the sprocket wheels, is provided with a circumferential.
groove which receives the end g of the hand levers S or S¹ the said levers being
pivoted to the cross bar T at the points h2, h3. The hand levers S, S¹, at opposite sides
of the machine, are connected by means of the rods,, with the opposite ends of
the lever, which is centrally pivoted to the ond of the bracket attached to the
bar T, so that, when one of the hand levers S, 1s moved either inward or outward
to produce a required movement of the sprocket wheel Q and spreading chain guide O,
a corresponding movement will be imparted to the opposite hand lever S₁ sprocket
wheel and chain guide O, thus enabling the operator to instantly adjust the guiding
machines A A¹ and the hook chains P, 1', according to the specific variation in the
width of the web as it is being fed into the machine, and a variation which requires
such adjustment is very liable to occur at the sewed joint between two connected
webs
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I claim is.
1 In a cloth guiding machine, the combination with the ratchet member adapted for
reverse movement, the friction slide and reciprocating means therefor, which together
constitute a power dispensing mechanical movement as set forth, of a detector which
engages frictionally with the running web, so as to move therewith when in engage-
ment, a guide roller held upon a pivoted head or frame, and the pivoted head or frame
supporting the guide roller and geared with the ratchet member, substantially as
described.
2. In a cloth guiding machine, the combination with the ratchet member adapted
to reverse movement, the friction slide and reciprocating means therefor, which together
constitute a power dispensing mechanical movement as set forth, of a detector which

page_text: engages frictionally with the running web so as to move therewith when in engage-
ment, a guide roller held upon a pivoted head or frame, the pivoted head or frame for
supporting the guide roller and geared with the ratchet member, and the guide for
holding the edge of the web back to the true line after the said edge passes the
frictionally engaged detector, substantially as described.
3. In a cloth guiding machine, the combination with the ratchet member, the
friction slide and reciprocating means therefor, which together constitute a power dis-
pensing mechanical movement as set forth, of a detector, the movement of which
serves to direct the required movement of the ratchet member, and an endwise
moving guide roller connected with the ratchet member so as to move in opposition to
the in and out varying movement of the edge of the web, substantially as described.
4. In a cioth guiding machine, the combination with the ratchet member the
friction slide and reciprocating means therefor, which together constitute a power
dispensing mechanical movement as set forth, of a detector which serves to direct
the required movement of the ratchet member, a guide roller held upon a pivoted
head or frame, the pivoted head or frame supporting the guide roller and geared with
the ratchet member, and an endwise moving guide roller connected with the ratchet
member so as to move in opposition to the in and out movement of the edge of the
web, substantially as described.
5. In a cloth guiding machine, the combination with the guide roller and its pivoted
head or frame, of the oppositely notched sliding bar, intermediate gearing between
the pivoted head or frame and the notched sliding bar, the reciprocating slide which
frictionally holds the notched sliding bar, means for reciprocating the said slide and the
overbalanced detector adapted for frictional engagement with the running edge of the
web, substantially as described.
6. In a cloth guiding machine, the combination with the ratchet member the friction
slide and reciprocating means therefor, which together constitute a power dispensing
mechanical movement, of a detector which engages frictionally with the running web,
a gude roller held in a pivoted head or frame, the pivoted head or frame supporting
the guide roller and geared with the ratchet member, the curved guide plate for guiding
the edges of the web to the detector, and the rollers at opposite sides of the curved
guide plate, substantially as described.
7 The combination with the hook chains and the adjustable chain guides, of a cloth
drying or tentering machine, of the cloth guiding machines attached to the chain
guides and serving to guide the edges of the web to the hooks of the chains, and the
lever connecting between the ends of the chain guides, substantially as and for the
purpose specified.
Dated the Twenty-th day of Anril 1889