US975051A - Loom-shuttle. - Google Patents

Description

J. LA PALME.

LOOM SHUTTLE.

APPLICATION FILED JULY 8, 1909. 975,05 1

Patented Nov. 8, 1910.

.UNITED STATES PATENT OFFICE.

'J'OHN LA IPALME, OF CENTRAL FALLS, RHODE ISLAND.

IiOM-SHUTTLE.

To all whom niay concern:

Be it known that I, JOHN LA PALMn, a citizen of the United States, residing at Gentral Falls, in ,the county of Providence and State of Rho e Island, have invented a new and useful Inpro'vement in Loom-Qhuttles,

4 of which the following is a specification.

The invention has reference to an improvement-f 1n loom shuttles and more parl0 delivery end of a 100m shuttle with the imprgv'ement attached thereto. Fi 2 is'a side ,view oft-he thread delivery en shuttle looking at'the thread delivery eye side. Fig; his a longitudinal sectional view through the delive Fig.- 4 is a seetio'na view of one of the leaf springs and its support.

In the drawings, 5 indicates the lower pin and 6 indicates the upper pin. These 1ns are supported in the side portion of the s uttle and extend across the throat portion A of the shuttle. The throat forms a passage connectin the bobbin cavity'B ofthe shuttle with t e delivery-eye C. I The. pins 5 and 6 are each formed with the central holes 7 and 8, respectively, and

areeach' s lit longitudinally as at 7" ahd 8T respective y, and each of the ins'5 and 6. have the slits'9 and'10 respectively. v

, 'The leafi springs 11 11' are each formed with the flattened frictional surface 12 and 12 respectively and with the enlargementl? 45,

which snugly fits the hole in the pin 5 or 6' respectively, the end 14 of the spring ex-' tending throughthe' side of the pm 5 or 6,

bored as indlcatedlin: Fig. 4.

.In setting'up the structure two holes are throat ofthe shuttle, the pin Sis-passed through the lower hole, the enlargement 13 Specification of Letters Patent.

Application filed July 8, 1909. Serial No. 506,570.

of .a loom end of the shuttle, and

in the side wallsof the shuttle, the .bottom leaf spring 11' is placed inthe tering the split 7 The pin is now forced across the throat of the shuttle until the open end enters the hole in the opposite sidewall of the shuttle. The same procedure is followed in securing the upper leaf spring 11 tothe in6.

'It W1 1 be readily seen that after the shut;

tle tension device is onceass'embled all the parts will be firmly .held in their relative positions. I In threading up. the shuttle the upper spring is turned up into the position- 1ndi'-- cated in broken lines in Fig. 3', when the Patented Nov.-8, 1910.

i being entered into the hole 7 and that portion of the spring next adjacent thereto'em 55,

thread passing from the bobbin can befre'ely passed under the pin 6 over the pin 5 andthence to the 'ide eye C and through the same, after w ich the pin 6 is turnedto bring the spring 11 in contact with the thread and exert a spring tension on'same, the lower spring giving way to the desired point of resistance.

- To facilitate the adjustment of the pins 5- or 6 the respective slots 9 and 10 are formed "n'the outer faces of said screw driver may be used.

Having thus described my -inyention,' I

tilaiinas new and desire to secure by atent pins sothat. a

In a sprm tension device for'loom shuttles, the-com ination of a centrally longitudinally perforated pin extending across thethroat of the shuttle and adjustably secured in recesses in the op ositewalls-thereof, said -x' pin having opposite y disposed longitudinal slots communicating with said central perforatio'n, and a bowed leaf spring having a;

straight portion at its 'forward extremity and an enlarged portion being equalin (11-. Q

ameter to that of the perforation ofqthepin and adapted to be received therein, cache the longitudinal slots being adapted. to snugly receive a projecting portion of the sprmg on the opposite sidesof the enlarged portion.

In testimony whereof I have signed nameto this specification in the presence'oftwo subscribing witnesses;

JOHN

' L'A PALME.

Witnesses:

Ana E. HAoEn'rY,

J. A. MILLER;

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