IMPROVEMENTS IN TAPPETS EMPLOYED IN LOOMS FOR WEAVING
Year: 1884

page_text: 33
I, JAMES EDELSTON, of, Preston, Manufacturer, do hereby declare the nature of
my invention for "IMPROVEMENTS IN TAPPETS EMPLOYED IN LOOMS FOR WEAVING
to be as follows:-
2
The improvements refer to the method of constructing tappets of a sectional
character used for the purpose of actuating the healds or harness in looms for
weaving, and have for their object the more convenient mode of building up such
tappets in the various forms required for the production of different treads or
patterns to be operated in actuating the warp threads in woven fabrics, especially
where such tappets require to be firmly braced together, and to be submitted to a
strain such as occurs in the weaving of velvets, velveteens, fustians &c.
To accomplish this and to effect my improvements, I construct a boss, disc, or
pulley, capable of being keyed or otherwise attached to a spindle or short shaft,
having motion given to it by gearing or in any other convenient manner, and by
preference placed at one of the outer ends of the loom, and is caused to actuate the
healds by means of levers, rods, and attachments such as are well understood.
This boss, disc or or pulley, has recesses or a groove sunk in its periphery, either
of a V or other form, into which the lower ends of the sections forming the pattern
are placed or fitted, thus giving them á strong resistance and solid basis.
For the purpose of keeping or holding the sections securely in their place,
I employ a ring or rings of wrought iron or other metal, which ring or rings pass
round projections formed upon the sections of the tappet, or may be made to fit
into recesses formed therein. The ring or rings may either be shrunk upon the
composition tappet thus produced or held in place by means of set screws, or bolts;
or each separate section may be held in position by being bolted or screwed or
wedged directly to the boss, disc, or pulley aforesaid. Any number of these
composition tappets may be used, according to the number of shafts of healds
employed.
.
Variations in detail may be made, and any composition or arrangement of
sections may be employed without departing from the peculiar character of the
invention, which mainly consists in the building up of composition or sectional
tappets, used in looms for weaving, upon a boss, disc, or pulley, formed with
sunken recesses or a groove in its periphery, and holding the same in position by a
ring or rings, screws, bolts or wedges.

page_text: I, JAMES EDELSTON, of Preston, Manufacturer, do hereby declare the nature of
my invention for "IMPROVEMENTS, IN LOOMS FOR WEAVING" and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The Improvements refer to the method of constructing tappets of a sectional
character which are used for the purpose of actuating the healds or harness in
looms for weaving, and the improvements have for their object the inore convenient
mode of building up such tappets in the various forms required for the production
of different trends or patterns to be operated in actuating the warp threads in
woven fabrics, especially where such tappats require to be firmly braced together,
and to be submitted to a strain such as occurs in the weaving of velvets, velveteens,
fustians &c.
To accomplish this and to effect my improvements, construct a boss, disc, or
pulley, or two or more of the same, capable of being keyed or otherwise attached
to a spindle or short shaft, having motion given to it by gearing or in any other
convenient manner, and by preference, placed at one of the outer ends of the loom,
and is caused to actuate the healds by means of levers, rods, and attachments such
as are well understood. This boss, disc, or pulley (or more than one) has recesses
or a groove or grooves sunk in the periphery, either of V or other form, into
which the lower or other. ends of the sections forming the pattern are placed or
fitted, thus giving them a strong resistance and solid basis.
For the purpose of keeping or holding the sections securely in their place,
I employ a ring or rings of wrought iron or other metal, which ring or rings pass
round projections formed upon the sections of the tappet, or may be made to fit
into recesses formed therein. The ring or rings may either be shrunk upon the
composition tappet thus produced, or hold in place by means of set screws, or
bolts; or each separate section may be held in position by being bolted, or screwed,
or wedged directly to the boss or bosses, disc or discs, pulley or pulleys aforesaid.
Any number of these composition tappets may be used, according to the number
of shafts or healds employed, and any number to the round may be used as
required.
But that the improvements may be better understood I will by the aid of the
accompanying drawings proceed more fully to describe means employed by me.
DESCRIPTION OF DRAWINGS.
Fig. 1. is an end view, and Fig. 2. an elevation of one form of tappot built up of
sections according to my invention,
The same letters indicate corresponding parts wherever they occur.
a, a, are the discs, bosses, or pulleys on which the sections are built, and which
are keyed or otherwise attached to the spindle or shaft-b, b.
In the narinhory of the disc or bo are formed the V shaned
waaros

page_text: The whole of these sections are held in position by means of hoops or rings of
metal, which by preference may be shrunk on while hot or otherwise secured,
or each section may be held in position by set screws, bolts, or wedges. The shaft
carrying the built up set of sections is fitted with gearing for driving from any
convenient part of the loom, and is mounted in suitable bearings g, g, affixed to a
framework, which by preference is placed outside one end of the loom. The
tappets communicate their motion to the healds or harness by means of levers and.
connections in the ordinary way.
+
Variations may be made in the form of sections and in the detail manner of
securing the same without departing from the peculiar character of the invention.
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
.
..
The construction or building up of the sectional tappets, for actuating the healds
in looms for weaving, upon a boss, disc, or pulley, or upon bosses, discs, or pulleys
formed with recesses or a groove or grooves in either such bosses, discs, or pulleys
at the periphery, or in the sections, and holding the same in position by a ring or
rings, screws, bolts, or wedges, substantially as shewn and described.
Dated this 22nd day of June 190K
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester,
.Agent..