US1663070A - Shuttle threader block - Google Patents

Description

March 20, 1928.

. 1,663,070 A. DION SHUTTLE THREADER BLOCK Filed Jan. 13. 1927 2 Sheets-Sheet 1 Ill Arseize Jim? Inventor 5 E "g By March 20, 1928. 1,663,070

. A. DION SHUTTLE THREADER BLOCK Filed Jan, 15. 1927 Sheets-Sheet 3 Invehtor Jam/1e Z2011 Attorneys Patented Mar. 20, 1928.

ARSEN'E' Dion, on BERKELEY, RHOIDE 'rsLAnn.

SHUTTLE 'THREADER 'IBLOGK.

Applicationfilcd' ian-uar ia, 1927. Serial No. 160,977.

The present invention'pertains to a novelshuttle threader block designed for insertion in the front end of the shuttle block for looms. v

The principal object of the invention is the provision of a device of this character involving a novel construction designed to retain the thread in the block andto prevent it from becoming knotted in the operation 'of the shuttle. With this object in view the threader block contains a coil adapted to receive the thread, the forward end of the coil being characterized by. peculiarformations which prevent escape of the-thread except through the usual eye of the device,

The invention is fully disclosed in the following description and in the accompanying. drawings in which:

Figure equipped with the novel threaderblock; Figure 2 is a side elevation thereof; Figure 3 is a'plan view of the shuttle'with the threader block removed;

Figure 4 is a section onthe line 4-4 of,

Figure 3;

Figure 5 is a side elevation of the threader block; 7

Figure 6 is a front elevation thereof;

Figure 7 isa section von the line 77 of Figure 6;

Figure 8 is a section on the line 8 8 "of Figure 5; n 1

Figure 9 is a: developed plan View of the sheet from which the coil is made; and

Figure 10 is a detached perspective view of the coil.

Reference to these views will now be made by use of like characters which are employed to designate corresponding parts throughout.

In Figures 1, block 1 having ceiving the bobbin 3. the shuttle has a cavity 4 in advance of the chamber 2 for receiving the shuttle threader block designated in general by the numeral 5. This member has a longitudinal slot 6 communicating with a lower longitudinal recess 7. The two sides 8 and 9 of the threader block, formed by the slot 6, are provided with outwardly curved wings 10 and 11 respectively for facilitating the entrance of the thread 12 into the slot.

To the top of the wing 11 is secured one 2, 3 and 4: is shown a shuttle the usual chamber 2 for re- The forward end of edge of a sheet member 13, preferably of 1 is a plan view of a. shuttle metal, the body of which is disposed within the recess 7 andcoiled thereinas v'clearly shown in FigureS. The inner ,edgeof the sheet, lying within the coil, is slantedor curved as at 14" with reference to tl'ieaxis of the coil as may be seen by comparison of Figures 9 and 10. At the forward end of V the coil, thisedge has an inwardlyextending.

tongue lb -which formsa'notch 1 6 in conunction-with the edge 14. Directly, adja centand outwardly of the tongue15, the forward edge of t-hegcoil is formed with:

forwardly projecting tooth or. point 16' which, with the-p'tongue-15, for-ins anothernotch 17. Finally, another. notch l8 istcut in the forward 'edgej of thecoil and lies substa'ntially opposite the not-ch17 with respect to the longitudinal axis of' the coil One side of the threader block is formed t with anoutlet opening 19 connnunicating with a slot 20 through which the thread passes in order to enter the outlet; A pain of pins 21 are inserted in the block at opposite sides of the outlet in order to aidsin,

guiding the thread and toprevent undue wear of the wood. I

Directly adjacent the as clearly shown in Figures 5' and 6. The block also has a fin 23 provided at'the same side and slightly overlappingiithe .point ofthc hookas shown Figured. The thread;

outlet opening the 'threader blockis formed with a. hook 22' eriblock has an integral stem 2e1- projecting;

from its base and adapted for reception in a corresponding recess 25 cut in the base of the shuttle block. Also, the threader block formed with a transverse aperture 26 for receiving a securing pin 27 having its ends fixed in the sides: of the shuttle block.

A pin 28 is bridged across the central cavit'y'of the threader block, directly in advance of the coil and has its midpoint substantiallyin line with the longitudinal axis of the coil. Another pin 29 extends from the inner wall of the fin 23 to the opposite side of the threader block. This pin lies at a lower level than pin 28 or near the top of the hook 22 as shown in Figures 6 and 7.

After the thread 12 has been passed into the slot 6 it follows a path around the coil until passing beyond the edge 14 and into the interior. It 'is then drawn over the pins 28 and 29, through the hook 22 and out of the opening 19. /Vhen the thread is taut during travel of the shuttle, it is retained by the pin 28 substantially in the axis of the coil as shown in Figure If the thread has a tendency to work its 'way out of the coil, it first enters the notch 16 and is retained by the tongue 15. In the event that the thread does pass the tongue it will be held by the tooth 16 in the notch 17. The last notch 18 holds the thread during the first throw of the shuttle or if the thread in some way passes the obstructions 15 and 16. It will be seen in Figure 6 that the thread passes beneath the pin 29 which prevents the thread from rising out of the hook 22. The fin 23, by overlapping the point of the hook, also holds the thread against escaping from the hook.

While a specific embodiment of the invention has been illustrated and described, it is to be understood that various alterations in the details of construction ma be madewithout departing from the spirit ofthe invention as indicated by theappended claims.

Having thus fully'described the invention, what I claim as new and desire to protect by Letters Patent is: f

1. A shuttle threader block having a longitudinal slot and a longitudinal recess communicating with the slot, acoiled member disposed in the recess and having one end secured to one of the walls of said slot, said member having a notch cut in the forward end thereof, said member having its inner edge slanted with reference to the longitudh nal axis of the coil, and a tongue projecting inwardly from said edge and disposed at the forward end of the coil.

2. A shuttle threader block having a longitudinal slot and a longitudinal recess communicating with the slot, a hook formed-in advance of said slot, a fin projecting from the block and overlapping the point of said hook, a coiled member disposed in the recess and having one end secured to one of the walls of said slot, said member having a notch cut in the forward end thereof.

3. A shuttle threader block havinga longitudinal slot and a longitudinal recess communicating with the slot, a hook formed inl advance of said slot, a fin projecting from,

of the coil.

4. A shuttle threader block havinga longitudinal slot and a longitudinal recess com municating with the slot, a coiled member disposed in therecess and having one end secured to one of the walls of said slot, said member having a notch cut in the forward end thereof, and a pin bridged across said recess in advance of said coil andhaving its midpoint substantially in line with the longitudinal axis of the coil.

5. A shuttle threader block having a longitudinal slot and a longitudinal recess communicatingwith the slot, a hook formed in advance of said slot, a fin projecting from the block and overlapping the point of saidhook, a coiled member disposed in the recess and having one end secured to one of the walls of said slot, said member having a notch cut in the forward end thereof, a pin bridged across said recess in advance of said coil and having its midpoint substantially in line with the longitudinal axis of the coil, and another pin disposed at the top of said hook.

said ed 'e and dis osed at the forward end In witness whereof I have hereunto set my hand. 7 V

ARSEN E DION.

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