US473886A

US473886A - Banding-machine

Info

Publication number: US473886A
Authority: US
Publication date: 1892-04-26
Anticipated expiration: 1909-04-26

Description

UNrTED TATES PATENT OFFICE.

XVILLIAM H. MCDAVITT, OF LAl/VRENCE, ASSIGNOR TO GEORGE DRAPER & SONS, OF HOPEDALE, MASSACHUSETTS.

BANDING-MACHI NE.

SPECIFICATION forming part of Letters Patent No. 473,886, dated April 26, 1892. Application filed October 5, 1891. Serial No. 407,764. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM H. MoDAvITT, of Lawrence, county of EsseX,State of Massachusetts, have invented an Improvement in Banding-Machines, of which the following de scription, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention has for its object to simplify and improve the construction of that class of machine employed in twisting bands to be employed for driving spindles andthe like.

My invention is applicable to twisting two or more strands into cords for various uses.

My invention consists, essentially, in the combination, with a traveling carriage having a hook for the reception of the central part of the strands to be twisted together in the formation of a band, of an automatically-operated latch consisting of a tilting lever placed in the path of movement of and to arrest the backward movement of the carriage and means constantly acting to place said leverin the path of the carriage, as and for the purpose set forth.

Figure 1 in side elevation representsa sufficient portion of abanding-machine to enable my invention to be understood. Fig. 2 is a top or plan view of the machine shown in Fig. 1, and Fig. 3 is an enlarged perspective detail showing a latch embodying my invention.

The bed Aof the machine, the shaft B, having the loose and fast pulleys O D, the revolving head W, containing the pinions cl cl, the twisting-hooks'G, upon which the said pinions cl are attached, the carriage J, the guiderods U, on which it slides, the cord at, attached to the said carriage, the pulley b, over which the cord is extended, and the weight Q are and may be all substantially as common and as described by like letters in Patent N 0. 391,728, granted October 23, 1888. The carriage J has extended from it, as herein shown, a hook c to receive the folded or closed end of the band, the cord or equivalent Ct being engaged with a suitable hook a, also connected to said carriage.

In accordance with my invention I desire to provide meanswhereby, when the operator releases the looped end of the band from the hook c, the carriage will not immediately run back to the end of the bed, but will remain in easy reach of the operator until after a new cord to be twisted has been applied,when the carriage will be permitted to move backward to put the proper strain upon the cord preparatory to twisting it.

In the form in which I have herein represented my invention I have erected upon the bed A a suitable stand e, and upon this stand I have mounted a latch e, it having, as represented, a beveled or inclined portion 6 the latch preferably having a weight, as a to normally keep its inner or beveled end up within range of a pin or projection 6 which I have added to the usual carriage J', the said carriage in practice having a handle 2.

In operation let it be supposed that a cord for the production of aband has been applied to the twisting-hooks and to the hook c and that the carriage before twisting the band occupies a position with the projection c more or less back of or to the right of the latch e in Fig. 1. Now as the cord is twisted in the formation of the band the carriage is drawn to the left, viewing Fig. 1, or in the direction of the arrow thereon, and the projection e of the carriage during its movement in the direction referred to will strike the inclined side of the latch and will tip or depress the same, so that the projection will pass the latch, as herein represented, and the weight a will immediately and automatically cause the latch to fly up at this time behind the projection e The carriage will continue to travel in the direction stated until the band has been sufficiently twisted, when the operator will detach the looped end 3 of the band from the hook c preparatory to detaching the opposite end of the band from the twisting-spindle.

In accordance with my invention, however, when the looped end of the band, or it may be the other end, is disconnected, as stated, from the devices holding it when being twisted the carriage, acted upon by the weight Q,will move back, or to the right in Fig. 1, only until the projection e meets the latch. Arresting the backward movement of the carriage at an intermediate point, as stated, leaves the hook c in easy reach of the operator when about to apply a new cord to the twisting-hooks and to the hook 0, so that the operator does not have to walk two or three steps to the right, as is sometimes the case, to engage the carriage and bring it forward to the left and hold it there by hand while the band is being connected with the hook c. The new cord having been applied, the operator will engage the latch, turn it, and let the weight Q move the carriage to properly stretch the cord before the commencement of the twisting operation.

Prior to this invention I am not aware that the backward movement of the carriage has been arrested temporarily, as described, to hold it in an intermediate position While the twisted band is being removed and a new cord applied to the twisting devices, so it is not intended to limit this invention to the exact construction of the parts shown; but instead I may use any equivalent-as,for instance, a springfor the weight, and the shape of the latch and its incline may be more or less varied and yet be within the scope of this invention.

For the sake of lightness I have provided the carriage J with the projection 6 This projection forms part of the carriage and may be of any suitable shape so as to present an engaging portion to act upon and be acted upon by the carriage.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

In a banding-machine, a traveling carriage having a hook for the reception of the central part of the strands to be twisted into a band, combined with an automatically-operating latch consisting of a tilting lever placed in the path of and adapted to arrest the backward movement of the carriage and means constantly acting to place said lever in the path of the carriage, as and for the purpose set forth.

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

WVILLIAM H. MODAVITT.

Witnesses:

WILLIAM GHADWIoK, WILLIAM A. BROWN.