US1119372A - Loom. - Google Patents

Description

H. W. SMITH.

LOOM.

APPLICATION FILED AUG. 2a, 1908.

Patented Dec. 1, 1914.

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NHHHW UHllllH ll H. W. SMITH.

LOOM.

APPLICATION FILED AUG. 23, 1906.

1,119,372.. Patented Dec. 1, 1914.

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H. W. SMITH.

LOOM.

APPLICATION FILED AUG. 23,1906.

Patented Dec. 1, 1914.

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HARRY W. SMITH, OF NORTH GRAFTON, MASSACHUSETTS, ASSIGNOR T0 CROMPTON & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

LOOM.

Application filed August 23, 1906.

To all whom it may concern Be it known that I, HARRY WV. SMITH, a citizen of the United States, and a resident of North Grafton, in the county of Worcester and State of Massachusetts, have in vented an Improvement in Looms, of which the following description, in connection with the accompanying drawing, is a specification, like letters on the drawing representing like parts.

This invention in looms has for its object to improve the class of looms represented in United States Patent No. 692,934, granted to me February 11, 1902. The loom referred to in said patent has at one end of the lay a single box, and at its opposite end a drop box having two cells, the loom being of the type commonly designated as 2x1. In the loom of said patent the magazine and filling transferrer to supply the shuttle with fresh filling are located at the single box end of the lay, while the filling detecting mechanism is shown aslocated at the drop box end of the lay; one shuttle box and one of the shuttles only being provided with detecting mechanism shown as contacts that become operative to effect the change of filling in the shuttle under the condition of practical exhaustion.

The loom to be herein described has been devised for weaving, among other articles, towels and the like where the fabric is provided occasionally with cross stripes, as when weaving the borders In my novel loom the shuttle in the top cell of the drop shuttle-box carries the filling for the body of the towel, and has coacting withit detecting mechanism to indicate and efi'ect the replenishing of that shuttle prior to complete exhaustion, while the shuttle in the under cell of the drop-box contains the less used filling for weaving the cross stripes for the border, the loom being provided with means for stopping the same should either filling break or be completely exhausted. When the filling in the cross striping shuttle breaks or is exhausted the loom will be stopped automatically and the shuttle containing such filling will be re- 5 noved from the shuttle-box to be supplied with filling by hand.

Figure 1, in front elevation, broken out centrally, shows a loom embodying my present invention; Fig. 2 is a detail showing part of the upperside of the top cell of the Specification of Letters Patent.

Patented Dec. 1, 1914.

Serial No. 331,736.

drop-box and part of the shuttle and filling carried therein; Fig. 3 is a right-hand end view of the loom shown in Fig. 1; Fig. 4 is a detail of the dagger catch; Fig. 5 is a left-hand end view of the loom; Fig. 6 shows the weft-fork forming part of the filling stop motion.

Referring to the drawin the loom-frame A breast-beam A, la 1* crank-shaft C, pitman H, cam-shaft gears G, C connecting the crank and cam shafts, feeder G, the shuttle-box lever E, mounted on the bracket E, the link E connecting said lever with the rod E carrying at its upper end the shuttle-boxes E under the call of the usual pattern mechanism of the shuttle-box mechanism, are substantially as shown in my said. patent, and also in U. S. Patent No. 600,488. The filling feeder G, filling carriers 22, and transferrer 26 pivoted at 47 are also common to my said patent and also to U. S. Patent No. 529,940. The loom also has pivotally mounted on the arm 45, forming part of the transferrer 26, a dagger 44, the end of which occupies normally a position below the path of movement of a hunter 43 secured to the lay, so that when the dagger is put in position to meet the hunter 43 the transferrer 26 will be turned to remove a filling carrier from the feeder and force it into the top of the open shuttle S.

The loom-frame also has pivoted thereto at one side on a stud a a lever a having at its rear end a roller that enters a groove (1 in a cam fast on the cam shaft B, the opposite end of the lever having jointed to it, at a, an actuator a that elevates the dagger whenever a fillin is to be transferred from the filling feeder into the shuttle. The loom also has a bracket 6 sustaining an electromagnet 5 the armature of which is pivoted at 6 and carries a guide 5' through which is extended the actuator a, a spring I) actment. The electro-magnet b has connected with it electric conductors 1 and 2 jointed in usual manner to sources of electric energy, such for instance as a battery or dynamo. The conductors 1 and 2 are carried to the drop or shifting shuttle-box side of the loom where, as shown in Figs. 1 and 4,-

they are connected to the drop or shifting shuttle-box guide B The shuttle-boxguide or stand 13 has secured to it contact plates or terminals 3, 4, in electrical connection with the conductors 1 and 2, and mounted upon the upper cell of the shifting shuttle-boxes are contacts and 56 which, by means of conductors 7 and 8 are in electrical connection with contacts 9 and 10, shown in Figs. 1 and 2 as. spring fingers bent near their outer ends to be in the path of the end of the shuttle S as it comes into the top cell of the shuttle-box.

. Extending from near the end of the shuttle S for-some distance along the top of the. uppermost cell of the shuttle-box are contact strips 11 and 12, which are in electric connection with the fingers 13 and 1 4, preferably spring-pressed toward the filling carrier 15 which, as shown, is provided with a conductor 16, preferably in the form of a metal ring or band.

Under normal working conditions the filling carrier 15 in the shuttle S is provided with filling which covers the conductor or metal ring 16, and. thus prevents electric junction between the spring fingers 13 and 14, and under such conditions when said shuttle enters the uppermost cell of the drop shuttle-boX the contact strips 9 and 10 will contact with the strips 11 and 12, but by reason of the fingers 13 and 14 being separated from the conductor 16 by filling wound thereover the electric circuit will not be closed and the transferrer will remain at rest. If, however, the filling on the carrier should become exhausted suficiently to expose the conductor 16 to contact with the fingers 13 and 14, then the electric circuit through the contacts 9 and 10, 11 and 12, fingers 13 and 14, and conductor 16will be established and completed through the fingers 5 and 6 and the contact plates or terminals 3 and 4 which are in connection with the wires 1 and 2. Under these conditions the electro-magnet 72 becomes energized and nuaeva may be of the same color, and only the shuttle S in the upper cell of the drop-box is automatically supplied with fresh filling prior to complete exhaustion.

To simplify a loom for making towels and other goods where there is a stripe at intervals 1 have rovided to take out and replace, the shuttle by hand. This shuttle and it's filling need be supplied only after complete exhaustion or when the filling breaks, at which time the loom is stopped, and to enable this to be done l have provided a filling stop motion which I will now describe. ll mount on the breast-beam a casting 30, in which slides a weft-fork carrier 31, having pivoted to its front end, at 32, a weft-fork 33, the rear end of which is turned downwardly, at 34, to be engaged by a beak 35 of the weft-fork actuating lever 36, pivoted at G on a stand G, the end of said lever having a foot 37 that is acted upon by a cam 38 once during each rotation of the cam shaft, the cam shaft being rotated once toeach two beats of the lay. The carrier 31 has a slot 39 in which enters one end of a lever 40 pivoted at 41 on the breast-beam, the opposite end of said lever contacting with the shipper handle 42, shown in Fig. 6, as well as in the usual notch of the shipper handle guiding plate 43.

Whenever the filling from the shuttle S" is exhausted the weft-fork 33 will not be tipped, but will occupy the position shown in Fig. 6, and the lever 36 when thereafter moved will push the weft-fork and its slide to the right, turning the lever 40, releasing the shipper lever 42 from its usual notch, and said lever through usual devices actuated by said shipper lever will shiftthe belt from the fast to the loose pulley and efiect the stoppin of the loom, when the operator may by han remove the shuttle S to re-supplyit with filling and restore the same to the lowermost cell of the shuttle-box, it then occupying-a position at the level of the race of the lay.

In practice the feeder G will have combined with it a spring, as provided for in U. S. Patent No. 628,228, July 4, 1899, acting normally to move the feeder in one direction one step at a time, and the transferrer when the feeder is locked or held in its inoperative position will normally stand above the next filling carrier to be taken from the feeder and put into the shuttle carried in the cell of the uppermost box of the drop boxes. l have shown in the drawings one practical but well-known form of detecting mechanism, but this invention is not limited to the articular detecting mechanism shown, an instead ll may employ any other usual or suitable detecting mechanism ca able of operating with the shuttle in a cel of a series of drop boxes to detect and indicate when a filling should be changed prior to complete exhaustion. It will also be noticed that the WBft stop-motion, namely, the filling fork and its accessories, will be moved and the loom stopped in case the filling on the shuttle S in the top cell of the shuttle-box should for any reason become broken. It will also be apparent that should the electrically-controlled filling changing mechanism fail to operate, for any reason, when the filling from the shuttle S is exhausted, the loom will be stopped by the stop-motion device controlled by the weft fork. The arm 44, as provided for in my said patent, has co-acting with the same a ball 0 acted upon by a spring 0 contained in a tubular casing ('1 said ball holding the arm 44 in either of its two positions, as fully provided for in said Patent No. 692,934. In the loom of my said Patent No. 692,934, a practical difliculty exists in the use of said loom for weaving certain fabrics in which the shuttle S carries a filling which is to be but little used; as where such filling would be required for Weaving narrow red stripes in towels the body portionsof which would be mostly white; as in such a case it would be difficult to calculate the numeral proportions of the filling carriers 22 mounted in the filling feeder C and supplied with red filling; and therefore should the automatic filling changing mechanism be entirely relied upon for supplying fresh fillings to both shuttles a filling of the Wrong color might be supplied to the shuttle S. For this reason it is better in the use of this loom for certain classes of work that only one cell of the drop or shifting shuttle box IE should be connected in the electric circuit, and that the shuttle entering the other cell of said shuttle box should control a stop-motion device to stop the loom automatically when the filling carried by said last-named shuttle is exhausted. It will therefore be seen that the present invention obviates an existing difficulty, and for certain classes of work constitutes an improvement on the loom of mv said patent.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is In a loom, the combination with a drop or shifting shuttle box, having a plurality of cells, of shuttles to enter said cells, a magazine to supply only one kind or color of filling to only one of said shuttles, filling changing mechanism for transferring the filling carriers from said magazine to only one of said shuttles, and detecting mechanisni connected with only one of said shuttles and controlling said filling changing mechanism, to automatically replenish the filling of said only one shuttle before complete ex-, haustion. I

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HARRY W. SMITH. Witnesses:

EUGENE G. BoU'rELLE, M T. CRIMMINS.

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