US769487A - Bearing-support for loom-lays. - Google Patents

Description

No. 769,487. PATENTED SEPT. 6, 1904. J. MOFETHRIES.

BEARING SUPPORT FOR LOOM LAYS.

APPLICATION FILED MAY 23, 1904.

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LT HHHHHHHF Irm/f I I E 1 w J m Q N PW i UNITED STATES Patented September 6, 1904.

PATENT OFFICE- BEARING-SUPPORT FOR LOOIVl-LAYS.

SPECIFICATION forming part of Letters Patent No. 769,487, dated September 6, 1904.

Apphcation filed May 28, 1904. Serial No. 209,149. (No model.)

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Be it known that I, JOHN MoFE'ruRIus, a citizen of the United States of America, and a resident of Springfield, in the county of Hampden and State of Massachusetts, have invented cer.

' tain new and useful Improvements in Bearing- Supports for Loom-Lays, of which the following is a full. clear, and exact description.

This invention relates to lay-supports for looms; and it has for its objects the improved construction of such support admitting of perfect freedom of pivotal movement without requiring lubrication, and hence beingeti'ective in saving of labor and expense to keep the device in proper working condition.

My improvement is especially adapted to looms in which the lay has a comparatively extensive movement and is supported from a point above the weft in order to reduce the angular movement of the lay-swords without reducing the movement of the reed longitudinally of the warp. It is of course evident that in such an organization the swords may be considerably longer than they could be if the lay was supported at a point beneath the weft. Whereas the overhead support possesses many other desirable featuresas, for instance, freedom of access to the weft and the other operative devices of the machine more or less trouble is necessarily met in keeping the overhead support of the lay properly oiled; and my invention has for its particular purpose the provision of a lay-support inwhich all lubrication may be entirely dispensed with and substantially in the manner illustrated in in the accompanying drawings, in which- Figure 1 is a side view of a lay mechanism embodying my invention. Fig. 2- is a front view thereof. Fig. 3 represents a section on line 3 3, Fig. 1; and Fig.3: is a perspective view of one of the lay-carrying members in detail.

In the drawings, 10 denotes the side frames of a loom.

11 is the lay, having the reed l2 and movable longitudinally of the warp-weft 13, as operated by a cam ll or otherwise from the lay-shaft 15. The lay 11 is secured at its ends to the swords 16, extending upward and united at their upper ends by a girth 1?.

Attached to the outer side of the swords, near the upper extremities thereof, are plates 20, having lateral projections 21, the lower portions of which are formed to constitute knife-edges 22, adapted to rest in either of the series of notches 23 provided therefor in the upper face of the stationary side frames 10. Means are provided to prevent the knife-edges from accidental displacement relative to the particular notches constituting the supportingfaces, these means consisting substantially of an arch 2i, secured to each side frame 10, and the inner or lower face of which is concentric with the knife-edge support, the outer and upper face 21 of which is rounded correspondingly, it being of course understood that a small clearance is left between the faces 21' and 25' to prevent rubbing contact between them.

Both lay-swords 16 are simultaneously operated through connecting-links 26, actuated by similar cams 1a, and so as to cause both lay ends to move exactly alike and to maintain the reed at a right angle relative to the weft 14:.

From the foregoingit is evident that the pivot-point 16 has a uniform swinging movement, and inasmuch as it is desirable to adjust or regulate the position to which the reed shall beat upI provide a series of supportingnotches 23 in the upper faces of the side frames, both series being alined and finished simultaneously and when the side frames are bored for the shaft 15.

It will now be seen that the lay or reed 12 must necessarily be in parallelism with the axis of the shaft 15 and, furthermore, that when the knife-edges 22 are moved into the front notches 23 the reed 12 will be moved slightly rearward 01' that when the knifeedges 22 are placed into the rear notches 23 the reed 12 will be slightly advanced without disarranging the parallelism of the reed with its original position. IV hen the knife-edges are shifted into different notches, as above described, the retaining-arches 25 must also be shifted correspondingly by withdrawing bolts and passing the same through the proper holes 31, as will be readily understood.

Having thus described my invention, What 1 claim, and desire to secure by Letters Patent, is

1. A lay-support comprising a pair of knifeedges, notched members cooperative therewith, and means independent of the swords for retaining the knife-edges in the notches.

2. The combination With a lay, apair of layswords and a pair of knife edges carried thereby, of a pair of stationary members having notches, and means independent of the swords for retaining the knife-edges in the notches.

3. The combination Witha lay, a pair of laysWords and a pair of knife edges carried thereby, of a pair of stationary members, each having a series of alined notches for varying the beating-up point of the lay, shiftable devices for retaining the knife-edges in the notches, and means for positioning said devices relatively to said notches.

4:. The combination With a lay, a pair of layswords, and a pair of knife-edges carried thereby, of a pair of side frames, a pair of stationary members carried thereby, and each having a series of alined notches for supporting said knife edges, and for varying the beating-up point of the lay, shiftable arches for retaining the knife-edges in the notches, and means for positioning said arches into concentric position relative to said notches.

Signed by me at Springfield, Massachusetts, in presence of two subscribing Witnesses.

JOHN MOFETHRIES.

Witnesses:

A. V. LEAHY, WM. 8.. BELLoWs.

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