IM- PROVEMENTS ON JACQUARD ATTACHMENTS FOR EMBROIDERING AND WEAVING MACHINES
Year: 1879

page_text: LETTERS PATENT to Michael Umstadter, of the City and County of Norfolk,
and State of Virginia, United States of America, for the Invention of "IM-
PROVEMENTS ON JACQUARD ATTACHMENTS FOR EMBROIDERING AND WEAVING
MACHINES."
Sealed the 4th July 1879, and dated the 1st May 1879.
COMPLETE SPECIFICATION filed by the said Michael Umstadter at the
Office of the Commissioners of Patents on the 1st May 1879.
MICHAEL UMSTADTER, of the City and County of Norfolk, in the State of Vir-
ginia, United States of America. "IMPROVEMENTS IN JACQUARD ATTACHMENTS FOR
EMBROIDERING AND WEAVING MACHINES."
My Invention consists in two independent set of hooks arranged and regulated
in connection with a jacquard mechanism in such manner that each set. of hooks
will move the fabric or material operated on in a direction at right angles to the
other. It also consists in booked rods having their lower end screw-threaded, and
provided with adjusting nuts, whereby the endwise throw of the said rods may be
regulated at pleasure. It furthermore consists in certain other minor improvements,
as will be hereinafter more fully described, and shown in the accompanying
Drawings, in which :-
Below
A represents the frame of a jacquard having a vertically movable knife plate B,
and below said plate a plate C, through which pass the usual needles. Each of
these needles are looped around the hooked rods D and face the cards that are per-
forated, so as to throw which row of these rods as may be desired in or out of
connection with the knives on the plate B as it rises and falls. The rods H are of
various lengths and screw-threaded at their lower extremities. They are also
arranged in two independent sets, and each of the said rods extend through a
grating fixed to the frame which guides them in their endwise movements.
the grating E are arranged the independent plates F, F, having spaced perforations
to receive said rods, and each of said plates appertaining to one of the sets thereof.
These plates are vertically movable in the frame A, and are connected with and
properly braced to the independent metallic plates G, G₁, by suitable rods.
rods H are of various lengths and project below plates F, F; they are provided
upon their lower extremities, which are screw-threaded, with nuts a, by means of
which the endwise throw of the said rods is regulated at pleasure. The plates G, G¹,
move in unison with the perforated plates F, F; the plate G with the plate F, and
The

page_text: the plate G with the plate F¹, but the movement of said plates are independent of
each other. In practice, I shall hold the nut a to its adjustment by means of a
second nut a¹, but I do not wish to be understood as limiting myself to any precise
mode of attaching this adjustability. Upon the underside of the plates G, G¹,
respectively are secured the rigid angular hangers b, 61, the object of which will
hereinafter appear:-I-represents a rectangular metallic or wooden frame, provided
upon its upper edge with oblong staples c and arranged between the supporting
frames J, upon which are journaled the vertically vibrating levers L. The adjacent
ends of these levers are provided with the engaged segmental racks d, and their
outer hooked ends e that straddle staples c are connected to the said staples by
means of pins passing through the said ends e, under the said staples, in such
manner that the frame has free endwise movement.
This frame is balanced by the weight W applied upon the supporting arms L,
between their fulcrum and their engaged segmental geared ends, and is held against
lateral displacement by the guides or guide pins f. g, g¹, are strong metallic plates
secured to the frame I at the side thereof, and provided respectively with a hori-
zontal slot i and a vertical slot . The plate g is connected to a pitman j pivoted
to the lower end of the hanger b of plate G by means of a straight lever N, having
its fulcrum on the contiguous support J, and provided on its weighted end with a
projecting pin h engaged in slot i, and having an anti-friction roller thereon. The
plate gl is also connected with a similar pitman j¹ on the end of the hanger b¹ of
plate G by an angular lever N' that carries upon its weight end an anti-friction
roller o¹, which is engaged with slot i. By raising or lowering the plate, the
frame I is lowered or raised, and by moving plate G¹ vertically the said frame is
endwise movable, these movements being absolutely independent of each other.
The operation of the mechanism is as follows:-
The design having been made and it having been ascertained which of the inter-
secting points will form the desired pattern, the cards are punched so that the rods
that will bring the fabric on the frame I to their points will hook upon the knives
of the knife-plate as it is raised. As the knife plate rises, the perforated frames F, F,
remain stationary until the nuts upon those of the hooked rods H that are engaged
with the knife plate B strike against the plates F, F¹, when they rise, and through
the angular hangers b, b¹, connecting-rods j, j¹, straight lever Ñ, angular levor N',
and the horizontally and vertically slotted plates upon the frame carrying the fabric
impart both a vertical and horizontal movement to the said frame. The needle or
other mechanism performs its work at a point of the fabric where it was known
that the hooks caught-up would draw it, corresponding to the initial or desired
point of the design.
This being done, the knife-plate descends and another card throws two other
hooks into engagement with the knife plate, and the result above described repro-
duced upon a second point of the fabric. This movement is continued until the.
design is perfectly worked in. This may also be accomplished by a system of ropes
and pulleys.
Having now. described my Invention, I wish to have it understood that I do not
limit myself to the exact details as shown and described, as these may be varied
without however departing from the peculiar nature of my Invention, but what I
claim is,―
Firstly. The combination with a suspended balanced frame I and the frame A
having a movable knife plate B, the plates F, G, and F¹, G¹, and a lever mechanism
connecting plates G, G', with the fabric frame of the rods H arranged in two inde-
pendent sets hooked at their upper ends, and one set extending through the
plates F, G, and the other through the plates F¹, G¹, each rod being screw-threaded
at its lower end, substantially as specified.
Secondly. The combination with a jacquard having endwise movable hooks
arranged in two independent sets, and provided with adjusting nuts on their lower
ends, the connected vertically movable frames F, G, and F, G, respectively, and an
intermediate mechanism connecting each of frames GG', with a suspended fabric

page_text: frame, one mechanism moving the frame vertically and the other horizontally,
substantially as specified.
Thirdly. The combination with a suspended balanced fabric frame having
plates g, g, provided respectively with a horizontal slot i¹, of the rectilinear lever Ň
engaging slot i, and the angular lever N¹ engaging slot i, the independent
plates G, G, having respectively the hangers b, b₁, the pitmans j, j³, connecting
respectively the hanger b and lever N, the perforated plates F, F¹, respectively
above the plates G, G¹, the vertically movable knife plate B, and the rods H adapted
to he hooked over the knives of the plates, and provided with an adjusting nut at
their lower ends, substantially as described.
Fourthly. The combination with a suspended balanced fabric frame and an
independent frame guiding a movable knife plate of the vertically movable perfo-
rated plates F, F", connected by a lever mechanism to the fabric frame, rods H
arranged in independent sets hooked at their upper ends, adjustable as to length,
extending through plates F, F', and thrown by a jacquard into engagement with
the knife plate, substantially as specified.
In witness whereof, I, the said Michael Umstadter, have hereunto set my
hand and seal, this First day of May, in the year of our Lord One thousand
eight hundred and seventy nine.
MICHAEL UMSTADTER. (L.S.)