US820018A - Shuttle-box motion for looms. - Google Patents

Description

No. 820,018. rATENTBD MAY s, 1900` RH.- RYON.

SHUTTLE BUXMOTIN FOR LOOMS APPLICATION HLED MAY s, 1905.

z SHEETS-SHEET 1.

ai" f t PATENTED MAY s, 1906.

E. H. RYON.

SHUTTLE BOX MOTION FOR LOOMS.

APPLICATION FILED MAY 8, 1905.

UETTED sTATEs PATENT oEEIcE.

EPPA H. RYON, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO OROMPTON & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

Specification of Letters Patent.

ratenteu May 8, 1906.

Application filed May 8,1905. Serial No. 259,296.

My invention relates t shuttle-box-mo` tion for looms in which two or more change or drop shuttle boxes are used on one or both ends of the loom; and my invention particularly relates to mechanism for operating the shuttle-boxes and to a give-Way mechanism connected to the vertically-moving shuttlebox rod carrying the shuttle-boxes and to a balance-spring for the shuttle-boxes.

The object of my invention is to improve upon the shuttle-box-operating mechanism as ordinarily made and the give-way mechanism connected with the shuttle-boxes, and the balance-spring mechanism.

My invention consists in certain novel features of construction of my improvements, as Will be hereinafter fully described.

I have only shown in the drawings detached parts of a shuttle-box motion at-one end of the loom embodying my im rovements, sufficient to enable those skille in the art to understand the construction and operation thereof.

Referring the drawings, Figure 1 is a rear view of a box motion at one end of a loom embodying my improvements looking in the direction of arrow a, Fig. 2. Fig. 2 is a section on line 2 2, Fig. 1', looking in the direction .of arrow b, Fig. 1. Fig. 3 is a detached view of the compound box-levers and the give-way mechanism. Fig. 4 is a rear view of the give-way mechanism and the shuttlebox rod looking in the direction of arrow a, Fig. 2. The shuttle-box rod is shown in section. Fig. 5 shows the parts of the give-way mechanism shown in Fig. 3 in their open position and the lower end of one part in section. Fig. 6 is a section on line 6 6, Fig. 3, looking in the direction of arrow c, same figure. Fig. 7 shows, on an enlarged scale, the pivot-bearing hub portion of a box-lever detached. Fig. 8 is a section on line 8 8, Fig. 7, looking in the direction of arrow d, same figure. Fig. 9 is a side view of the removl able bearing detached; and Fig. 10 is an end view of the bearing shown in Fig. 9 looking inthe direction of arrow e, same figure. Figs. 3 to 10, inclusive, are shown on an enlarged scale.

In the accompanying drawings, 1 is the loom-frame, 2 is the crank-shaft, 3 the crankconnector to the lay-sword 4, which is pivotally mounted at its lower end in the usual way. The Ray-sword 4 carries one end of the lay-beam 5 and hand-rail 6 and also carries the shuttle-box stand or frame 7 for the vertically-moving shuttle-boxes S-in this instance four in number.

To the loom-frame 1 are secured the archstands 9 for supporting the head-frame 10, carrying the well-known Knowles head motion, (shown and described in United States Reissue Letters Patent No. 7,784,) which comprises the pattern surface or chain 11, mounted on the pattern-cylinder 12, over Which extends indicator-levers 13, pivoted on the head-frame 10, and each carrying a vibrator gear or crank 14, which is moved into engagement with the lower cylindergear or the upper cylinder-gear, (not shown,) all in the usual and well-known way. To each vibrator-gear 14 is attached -a vibrator-connector in this instance two connectors 16 on one end of the loom and two connectors 16', extending across the loom to the opposite end thereof.

All of the above parts may and well-known construction.

I will now describe my improvements. Each of the two vibrator-connectors 16 is vconnected with the upper end of a lever 17, pivoted on a stud 18, securedy to the stand 9. Each lever 17 is connected at its lower end, through an adjustable link 19, with a gearsegment 20 and 20a, respectively, which are pivotally mounted on a stud 21. One gearsegment, as 20, meshes with a bevel-gear 22, fast on a shaft 23, mounted on a stand 24, secured to the loom-frame. To the shaft 23 is fast a crank-arm 25, carrying a crank-pin 25', to which is pivotally attached the upper end of a connector 26. The lower end of the connector 26 is pivotally attached to one end of the box-lever 27, which is pivotally mounted on a stud 28 on the end of a second lever 29. The opposite end of the lever 27 is pivotally be of the usual IOO connected with the lower end of the giveway mechanism 30. (See Fig. 3.) The gear-segment 20a meshes with a bevel-gear 22a, fast on a sleeve 23a, mounted on the shaft23. arm 25a, carrying the crank-pin 25a. To the crank-pin'25a is attached the upper end of a connector 26a. I The lower end of the connector 26a is pivotally connected to one end of the lever 29, centrally pivoted on a stud 29', carried on a frame or stand 29, secured to the outer side and lower part of the loom-frame 1 and carrying in this instance a rod 2 9, with guide-sheaves 29 mounted thereon.

I will now describe the give-way mechanism and the shuttle-box bal ance-spring. The giveway mechanism 30 comprises the two arms 30 and 30, which are pivotally connected at their upper ends bya pin 3 1. (See Fig. 3.) The lower end of one arm,l as 30, is pivotally connected to the front end of the lever 27, as above described, and also has two side extensions 30 thereon, between which extends a side extension 30 o n the arm 30', which side extension has a bevel-shaped forwardly-extending engagin end adapted to be engaged by the foot o the weaver. A coiled expansion-spring 32 is in this instance inclosed within a central opening 3 2 in the extension 30 (see Fig. 6) and is supported at one end in a recess at one end of saidl opening 32 (see Fig.r 5) and'bears at its other end against the part 30, which extends through said opening 32. (See Fig. 6.) The spring 32 acts to move the yengaging end of the side extension 30 on the arm 30 outwardly to hold the two arms 30 and 30 in their normal closed position, as shown in Fig. 3. The two arms 30 and 30 each have a circular recess 3O"L on their inner edge in the usual way to receive in this instance a collar or bushing 33, mounted on a stud 34, which extends out from and is secured to a collar 35, fast on the vertically-moving box-rod 36. rIhe vertically-moving box-rod 36 in this instance is made tubuilar or hollow and is secured at its upper end to the lower part 8 of the shuttle-boxes 8. Extending within the tubular rod 36is a spiral expansion-spring 3.7, the upper end of which in this instance bears against a stud 8, extending down from the boxes 8j within the tubular rod 36. The lower end of the spring 37 bears against the upper end of a vertically-'extending rod 39, which extends loosely within the lower end ofthe tubular rod 36. (See Fig 4.) The lower end of the rod 39 is fastened to the rocker-iron 39. The spring 3,7 acts to balance the weight of the shuttle-boxes 8, and being in closed within the box-rod 3 6 is concealed and out of the way, By means of the GXCGIlSOn 30 on the arm 30 of the giveway mechanism the weaver with his foot can move the part 30 to separate it from the Fast on the sleeve 23a is a crankpart 30, as shown in Fig. 5, and allow the shuttle-boxes to be raised or lowered by hand,

I will now describe the construction of the bearing for the pivot-studs of box-levers. In this instance each lever 27 and 29 has a hub portion 27*l and 29a, respectively, which is recessed to receive the detachable bearing 40 for the pivot- studs 28 and 29. An adjusting screw or bolt 41 extends through a threaded hole in the lower partof each hub and bears at its inner end against the lower surface of the bearing-piece 10. The bearing-piece 40 has projections 40 on its opposite external edges, and in case it is desired by reason of wear on the bearing to make the bearing closer or tighter on the sup orting pivot-l studs it is only necessary to Ile off slightly the upper ends of the projections 40.

It will be understood that the details of construction of my improvements may be varied, if desired, and they may be applied to any shuttle-box motion.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a shuttle-box mechanism of a loom, the combination with the cylinder-gear, the vibrator-gear, and the box-lever, of intermediate connections, comprising a vibratorconnector, a pivoted lever connected therewith, a link connected with said lever, a ivoted gear-segment connected with said link, a bevel-gear meshing with said gear-segment, a rotory shaft or sleeve carrying said bevelgear, a crank connected with said shaft or sleeve, and a connector therefrom to the boxlever.

2. In a shuttle-box mechanism of a loom, the combination with the cylinder-gear, the vibrator-gear, and the box-lever, of intermediate connections, comprising a vibrator-connector, a pivoted lever connected therewith, an adjustable link connected with said lever, a pivoted gear-segment connected with said link, a bevel-gear meshing with said gear-segment, a rotary shaft or sleeve carrying said bevel-gear, a crank connected with said shaft or sleeve, and a connector therefrom to the box-lever.

3. In a shuttle-box mechanism of a loom, a give-way mechanism for the shuttle-box rod, comprising two arms pivoted together and yieldingly held together, and one of said arms having an extension thereon adapted rto be engaged by the foot of the weaver, to

move apart the arms and release the shuttlebox rod.

4. In a shuttle-box mechanism of a loom, the combination with the shuttle-boxes, and a tubular vertically-movmg rod connected therewith, of an expansion-spring extending within said tubular' rod, and having a bearing at its upper end, and a bearing at its lower end against the upper end of a second IOC IIO

ISO

rod, and said second rod secured at its lower end, and extending loosely Within the lower end of the tubular rod.

5. In a shuttle-box mechanism of a loom, the combination with a vertically-'moving shuttle-box rod, ,of a shuttle-box lever, oonneoted with said shuttle-box rod, and having an opening therethrough for a removable bearing Jfor the pivot-support of said lever, and said bearing, and an adjusting bolt or set-soreW turning in a threaded hole in said lever, and enga ing said bearing.

6. In a shuttle-box mechanism of a loom, the combination With a vertically-moving shuttle-box rod, of a shuttle-box lever, pivotally connected With said shuttle-box rod, and having an opening therethrough for a removable bearing, and said bearing, having projections thereon which may be reduced in oase of looseness of the bearing,l and an adjusting bolt or set-screw turning in a threaded hole in said lever, and adapted to engage and adjust said bearing.

EPPA H. RYoN.

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