Improvements in Guiding Devices more especially Designed for Use in connection with Cloth Tentering Machines.
Year: 1898

page_text: Date of Application, 16th Aug., 1898-Accepted, 22nd Oct.,
1898
Improvements in Guiding Devices more especially Designed for Use
in connection with Cloth Tentering Machines.
I, HENRY ANTHONY TILLINGHAST, of 33, Angell Street, in the City of Providence,
County of Providence, and State of Rhode Island, United States of America,
Manufacturer of Textile Machinery, 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:-
The present invention relates to a device for accurately guiding the edges of a
web of cloth or other material to travelling carriers such as grippers, chains or
feeding rolls, and while said device is more especially designed for use in guiding
the edges of a web of fabric to the chain hooks or grippers of a cloth tentering
machine, said device may be used wherever it is desired to guide the edges of a
web of fabric or other material.
The object of the invention is to provide a simple and efficient device for
accurately guiding a web and which may be readily applied in any of the relations
where such guides are now used or where it may be desired to use such guides,
and to that end the invention comprises a guide roll mounted to revolve upon a
movable support and an engaging surface connected to the support and arranged
adjacent the guide roll so that the web if it runs to one side will engage said
surface and thus exert a pull upon said surface and said support, and move the
guide roll into such a position that the web will be returned to its proper position.
The engaging surface may be connected to the movable support by being formed
integral therewith or rigidly secured thereto in which case there will be no relative
movement between said surface and support, but it is preferred to so connect the
surface and support that there may be a slight relative movement between said
parts as the cloth engages the surface, as with this construction the support is
moved gradually and less strain is put upon the edges of the web when the support
is moved to return the web to its proper position.
In the accompanying drawings in which is shown a guide device embodying
the present improvements in their preferred form,
Fig. 1 is a plan view.
Fig. 2 is a sectional elevation on line 2-2, Fig. 1.
Fig. 3 is a sectional detail view on line 3-3, Fig. 1.
In the drawings, 1 represents a bracket for supporting the guide device, which
may be attached in any suitable manner to the frame of the tentering machine or
other machine in connection with which the guide devices are to be used. It will
be understood that two devices will be used one upon each side of the web as is
usual with this class of devices. The bracket 1 is provided with two projecting
arms 2 between which is pivoted the movable support or frame 3. A stud 4
projects from the support 3 and a guide roll 5 is mounted to turn freely on
said stud.
An engaging surface preferably in the form of a narrow roll or disc 6 is
also mounted on the stud 4 adjacent the end of roll 5. The disc 6 may bo
connected to the support by rigidly securing it to the stud 4 if desired, but it is

page_text: preferred to mount said disc in such a manner that it may have a slight movement
relative to said support and to connect the disc to the support by means of a
shoulder carried with said surface, which shoulder engages the support. As shown
the disc is provided with a hub 7 having the shoulders 8 and 9 formed by a
recess in said hub and the stud 4 is provided with a projection or lug 11 which
projects within said recess and is in effect a part of the support 3. 'A flat spring 10
having one end secured to the lug 11 is wound around the hub 7 and has its other
end secured to the rim of disc 6. The spring thus acts to normally hold the
shoulder 8 against the lug 11, said shoulder and lug forming stops for limiting the
movement of the disc. A weight may be used for this purpose in lieu of the spring
and the stops may be dispensed with if desired, the spring in such case being so
formed that it will not be under tension when the engaging surface is in its
normal position. Instead of forming the shoulder for engaging and moving the
support 3 upon the hub of disc 6 said shoulder may be in the form of a pin or
stud projecting from said disc and arranged to engage the side of the support 3, or
other means for connecting the engaging surface to the support so that the web
will exert a pull upon the support may be used. It will also be understood that
the roll or disc 6 may be segmental instead of cylindrical or the form of the
engaging surface may be otherwise changed and the manner of mounting said
surface may also be varied as desired. The web may be held in engagement with
the guide roll 5 in any suitable manner as by passing over suitable guides in
passing to and from the guide device, but it is preferred to provide a pressure
roll 12 for pressing the web upon the guide roll and engaging surface. The
roll 12 is mounted upon a stud 13 projecting from a bracket 14 pivoted at 15 to
the support or frame 3. A leaf spring 151 secured to the bracket 14 and engaged
by a screw 16 upon the support 3 serves to hold the roll 12 against the roll 5
and the engaging surface and by adjusting the screw 16 the pressure upon the web
may be varied as desired.
and 12 and
The support 3 is maintained normally in the proper position by means of the
weight 17 which is adjustably secured to, a slotted arm 18 depending from the
support 3. By adjusting the weight 17 the angle between the rolls
the edge of the web may be adjusted so that the web will be properly guided. The
bracket 1 is provided with a depending arm 19 to which the guides 20 and 21 over
which the web passes to the guide roll 5 are adjustably secured.
The operation is as follows: One of the guiding devices is located at each side
of the web and the edges of the web pass over the guides 20 and 21 and the
'guide rolls 5, the weights 17 acting to hold the rolls at such an angle that the web
will be accurately guided. If now for any cause the web works to one side, the
edge of the web will engage the disc 6 upon that side and exert a pull upon said
'disc tending to revolve the same. This tendency will be resisted by the spring 10
and thus the pull of the web will be transmitted to the frame 3 with increasing
'force until the shoulder 9 engages the lug 11 and positively connects the disc and
support when the entire pull of the web will be exerted upon the support 3. The
pull upon the support 3 will rock the support upon its pivots and thus move
the guide roll 5 at an angle to the web and guide said web back to its proper
position and off of the disc 6. As the edge of the web passes from the surface of
disc 6 the pull upon said disc and support 3 will be removed and 'the spring 10
will return the disc to its normal position relative to the support 3 and the
weight 17 will return the support to its normal position. The rocking movement
of the support 3 is limited by the head of bolt 22 which engages the web 23 of
bracket 1. Thus if the web works to either side it is quickly returned to its proper
position and the accurate guiding of the web is ensured.
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 guiding roll mounted on a movable support and a surface arranged to be

page_text: engaged by the material when it runs out of true, and to transmit the pull of the
material directly to the movable support, substantially as described.
2-A guiding roll mounted on a movable support and a surface arranged adjacent
to the roll for engaging the support and transmitting the pull of the material
directly to the support, substantially as described.
3-A guide roll mounted on a pivoted support, a surface arranged to be engaged
by the material when it runs out of true, and a shoulder secured to said surface
and yieldingly held out of engagement with the support, substantially as described.
4-A guide roll mounted on a pivoted support and a disc at the end of said roll
connected to the support to transmit the pull of the material directly to the support,
substantially as described.
5-A pivoted support having a projecting stud, a guide roll on the stud, a disc
mounted on the stud and secured to the support, and a pressure roll mounted on
the support, substantially as described.
6-A pivoted support held in its normal position by a weight and carrying a
guide roll, a disc connected to the support, and a pressure roll bearing on the disc
and guide roll, substantially as described.
Dated this 23rd day of July 199
HENRY ANTHONY TILLINGHAST.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
HENRY ANTHONY TILLINGHAST.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.