Year: 1885

page_text: WALTER BRIERLEY,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Mechanism for Operating the Healds of Looms
for Weaving.
We CHARLES HAHLO and CHARLES EDWARD LIEBREICH, both of Bradford in
the County of York Merchants and Machinists, and THEOPHILUS HANSON of
Bradford aforesaid Mechanic do hereby declare the nature of our invention for
IMPROVEMENTS IN MECHANISM FOR OPERATING LOOMS 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 further improvements in mechanism for purpose afore-
said upon the invention in the specification of Patent No 193779 granted to the
said Theophilus Hanson and is designed for purpose of simplifying the construction
and reducing the number of working parts of such mechanism.
Such being the nature and object of this our said invention the following is a
complete description of same, reference being had to the accompanying drawings
forming a part of the specification in which.
Fig. 1. is a front elevation illustrating the parts of a dobby or heald mechanism
as improved and in accordance with our said invention shewing the position of
the parts when the healds are in the raised position.
Fig. 2 is a like view wherein is illustrated the position of the parts when the
healds are lowered or down.
At 1. is the indicating or peg barrel which it will be seen is in direct communi-
cation with and acts directly upon the draw bars 2. without any intervening
fingers or tumblers as hereto. Upon the upper edge of the bar 2. is formed the
notch 3. and at 4 is a stationary cross bar fixed to the side frame of the dobbey.
6. and 7 are the hooks which by means of the ordinary draw knives 8. and 9.
operated from the tappet shaft by connecting rod and rocking lever as is common
to dobby looms, and well understood, therefore not illustrated in the annexed
drawings. 10. is a jack lever for communicating motion to the heald staves as
ordinary, and 11. and 12. are grates for the draw bar.
The action is as follows.
At each forward movement of the draw bars 8. and 9. (when as in Fig. 1. a
peg is under the bar 2.) the said bars alternately reach and move slightly the
catches 6.-7. so as to ease the notch 3. ready to drop the bar 2. should there be a
blank or no peg, whereon the parts take the position shewn by Fig. and the
healds will remain down for any number of picks until a peg again occurs, which
(referring to Fig. 2) would first lift the bar 2. and the catch 6. would engage with
the draw bar 9., meanwhile the peg having moved past or from under the point 2.
the bar 2. falls so as to pass under the fixed bar 4. as 9. draws 6. and 2. forward;
if no succeeding peg the parts return to position shewn at Fig. 2., but if a peg,
then the bar 2. would be lifted and its notch 3. would engage with the fixed bar 4.
and the jacks 10. and healds would remain up or raised until a blank again
occurred in the barrel. It will be seen that the tumbler levers" and connections

page_text: heretofore employed as intermediate agents between the peg barrel and the draw
bar 2. are dispensed with and direct action of the peg upon the draw bar is
obtained and any number of successive picks may be made without effecting
change of position of bar or lever 10.
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. The peg barrel 1. draw bar 2. holding bar 4.-catches 6. and 7. all in
combination and substantially as illustrated and herein set forth.