IMPROVEMENTS IN BREAKS OR WEIGHTING MOTIONS FOR RETARDING ROTARY MOTION, APPLICABLE TO WARP BEAMS OF LOOMS, VEHICLES, AND FOR OTHER PURPOSES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I JOSEPH PARKINSON of 14 Chester Street, Bradford, in the County of York,
Machine Maker, do hereby declare the nature of my Invention for IMPROVEMENTS
IN BREAKS OR WEIGHTING MOTIONS FOR RETARDING ROTARY MOTION, APPLICABLE
TO WARP BEAMS OF LOOMS, VEHICLES, AND FOR OTHER PURPOSES, to be as
follows:-
This invention relates to certain improvements in breaks and has for its object
the construction of break clips or clams and the arrangement of the connecting
levers and rods or chains with the clips in such a manner that the necessary
amount of friction or grip can be obtained by the application of less weight or
power upon the levers than is the case with breaks of the ordinary construction.
I accomplish my object by using what I terin break clips made in two parts with
raised portions on the interior surface that come in contact with the circular object
to which the break is applied: When used for breaking the warp beams of looms
the clips are mounted on one or both of the ordinary truly turned collars near each
end of the beam and each pair of clips are attached together on one side by means
of an adjustable yoke bolt to accomodate wear and tear, and on the other side of
each pair of clips, I form projections to one of which is jointed a lever that is also
in contact with the other portion of the break clips so that when the lever is
pressed in the proper direction the two clans or clips are caused to come together
and grip the collar or other circumference around which they may be placed.
When the clips are fitted to both ends of the warp beam they are connected
together by means of levers and rods or lovers and chains with the lovers so
arranged and clips secured that greater uniformity in the action of the bean is
obtained and any eccentric or irregular rotation of the beam, roller, axle or wheel
to which my improved break may be applied will not materially affect the
uniformity of the friction of the clips in the various applications and much less
weight or power is needed than is ordinarily required to produce the necessary
friction or grip of the clips upon the object to be retarded.
Also the grip or friction can be readily varied or entirely removed as required
and as readily reapplied.

page_text: I, JOSEPH PARKINSON of 14, Chester Street, Bradford, in the County of York,
Machine Maker, do hereby declare the nature of my invention, for IMPROVEMENTS
IN BREAKS OR WEIGHTING MOTIONS FOR RETARDING ROTARY MOTION APPLICABLE
TO THE WARP BEAMS OF LOOMS, VEHICLES AND FOR OTHER PURPOSES, 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 certain improvements in breaks, and has for its object,
the construction of break clips or clams, and the arrangement of the connecting
levers and rods or chains with the clips in such a manner, that the necessary
amount of friction or grip can be obtained by the application of less weight or
power upon the levers, than is the case with breaks of the ordinary construction.
I accomplish my object by using what I term break clips made in two parts, with
raised portions on the interior surface that come in contact with the circular object
to which the break is applied. When used for breaking the warp beams of looms,
the clips may be mounted on one or both ends of the ordinary truly turned collars
near each end of the warp beam, and each pair of clips is attached together on one
side by an adjustable yoke bolt to accommodate wear and tear; and on the other
side of each pair of clips, I form projections to one of which is jointed a lever that
is also in contact with the other portion of the clip, so that when the lever is
pressed in the proper direction, the two parts of the clip come together and grip
the collar or other circumference around which they may be placed.
Whether the apparatus is applied to one, or both ends of the beam, the levers
rods or chains are so arranged, that greater uniformity in the action of the beam
is obtained; and any eccentric or irregular rotation of the beam, roller, axle or
wheel to which the apparatus is applied, will not materially affect the uniformity
of the friction of the clips.
I will explain my invention more in detail by aid of the accompanying
drawings, in which Fig 1 represents an end elevation of such portions of a loom as
are required to explain the improved break or retarder, and Fig. 2 is a back view
of the loom.
The loom ends A are of the ordinary construction, and the warp beam B is
mounted in the loom end journals in the usual manner. Around the collars at one
or both ends of the warp beam as the case may require, I place a pair of iny
improved break clips made in two parts C and C₁; these are jointed together at
one side by an adjustable yoke bolt D, and at the opposite side I joint to one
portion of the clam or clip C, the lever E, prepared with a projection that comes
in contact with the raised portion at the end of the other portion of clam or
clip C. Connected to the end of each lever E is screwed rod F, to which is
attached chain G which passes round the grooved pullies H and H, the former
being mounted on the stud forming the fulcram of lever J, and the latter on a stud
secured to the said lever: the chains G at each end being connected together by
rod G¹.
The amount of friction it is necessary to put on the break clams C and C¹ to
suit the requirements of the fabric, is obtained by adjusting the weight W on
lever J, which moves the lever in the direction of the arrow, and through the
chain G applies weight to the end of the levers E, thereby causing the clams to
grip the collars, and thus retard the warp beain. By pressing down with the foot
the extended portion of lever J at J¹, the chains G are slackened, and thereby

page_text: release the grip on the collars to such an extent, that the beam can be easily moved
by hand.
In case the break clams or clips are applied only to one end of the warp beam,
the grooved pulley H' is dispensed with, and the chain G attached to the lever E
in the same manner as before described passes over pulley H, and finally secured
to a stud attached to lever J in about the same position as that occupied by the
grooved pulley H¹.
In order to prevent the clips turning round along with the warp beam, and to
allow the warp to leave the beam steadily, and the latter to rock or oscillate in the
journals, I joint to the tongued lever L which rests upon the projection of clip C¹, a
rod M that extends down and through the spiral spring S at the underside of
bracket ; where the said spring is compressed by nuts N, which when the warp
is drawn from the beam, yields a little, allowing the clips to go along with the
warp beam; when, the claims being unable to travel further forward, the warp is
drawn off the beam, and on the return of the reed after beating up the weft, the
spring S causes the beam to roll back to its normal position, determined by the
stop chain G2 secured to the clip or clam C and some rigid point on the loom; or
this chain may be dispensed with, and a stop obtained by encasing the rod M with
a tube cut to the length between the top side of bracket M' and the underside of
projection on C, thereby forming a pillar between the two, and preventing the
clams rolling back beyond this limit.
By releasing the pressure, and removing the connections from the lever E, and
lifting the tongued lever L out of its bearings on C', the clams are free, and the
warp beam can easily be removed without having occasion to alter the nuts N.
Fig. 3 is an enlarged detail of the clams or clips, and shows the pad of flexible
porous material R which is saturated with oil, by which the collar is thoroughly
lubricated, and any sticking between the clams and collars prevented.
Fig. 4 is an enlarged detail of the weighting levers, the lever J by this arrange-
ment is extended, terininating with hand lever Ja in one direction, and with foot
lever J in the other: mounted on the same stud is another lever H2, to which the
grooved pullies H and H¹ are mounted, the former on the centre or fulcrum stud,
and the latter to a stud on short arın of lever; to the lover arm J' is jointed link
keep T which when passed over lever arm H as shewn by drawing, applies the
weight to the lever E and clams in the manner as before described. By pressing
down the foot lever J¹ and holding the lever arm H' in the position shewn, the
keep link T can be removed, and then the weight on lever E and clams C
and C liberated.
Fig. 5 is a detail, shewing an arrangement by which the weight or friction of
the clams upon the collars can be greatly increased without adding heavier
weights W to the levers J: this is accomplished by the addition of a short lever U,
to one end of which the chain G is attached by rod G, and the connection with
lever E effected by rod G³, the recess near the end resting upon a projection formed
on one portion C¹ of the clips as fulcrum. It will be easily seen that by the
introduction of this lever, the friction of the clips on the collars is greatly
increased.
Figs 6, and 7, shew modified forms of clams which are required for some classes
of looms, and may be operated by levers similar to those illustrated by Fig. 4, or
the lever E in Fig. 7 may be arranged as shewn by dotted lines, projecting in the
opposite direction and the weight chain from end of same passed over pulley
mounted on a stud attached to one portion of the break clip; in every modified
form of break clips or clams I attach the two portions together by a yoke bolt
similar to that illustrated by Fig. 8.
In the application of my break to the axles or wheels of vehicles or other
rotating shafts, a pair of clams similar to those shewn by Fig. 6 may be applied,
the lever E being suitably extended and kept in position by a keep or catch of any
ordinary construction, and the chain or rod attached to the same secured to some

page_text: convenient fixed point of the vehicle or machine, thereby retarding the motion of
the same with a small amount of power applied to the lever.
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:
Clams or break clips jointed by an adjustable yoke bolt in the manner described
for the purpose of adjusting the same and allowing the two portions of the clams
or clips to accommodate themselves to the collars or circumferences around which
they are placed.
The combination of the clips C and C¹ with rod M, spring S and stop chain G³
for the purpose of allowing the warp beam to rock or oscillate in the journals.
The combination of the clips C and C¹ with rod M encased with a tube substan-
tially in the manner and for the purpose described.
The application to or the releasing of the pressure to or from the levers E and
clips or clams C and C' by the lever pullies and chains all arranged substantially in
the manner shewn and described.
DLL:- AL 1
1004
WAUGH & CHAPMAN,
Agents for the Applicant.