US1289160A - Slub-catcher for silk-winding machines. - Google Patents

Description

E. D. GUDEBROD.

SLUB CATCHER FOR SILK wmmws MACHINES.

APPLICATION FILED AUG.3I. |9l7.

1,289,160. Patented Dec. 31, 1918.

2 SHEETSSHEET I.

E. 0. GUDEBROD.

SLUB CATCHER FOR SILK WINDING MACHINES.

APPLlCATlON FILED AUG.31.1917.

1,289, 160. I Patented Dec. 31, 1918.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

, EDWARD D. GUDEBROD, OEIPOTT STOWN, PENNSYLVANIA.

snunscarcnnn FOR SILK-WINDING MACHINES.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed August 31, 1917. Serial No. 189,061.

cally stop the winding when a slub or knot engages a contact fork, and also stop the winding when the thread breaks or the end is reached. v

A further object is to provide an electrically controlled stop mechanism of the character stated which can be attached to the ordinary windingmachine iii-general use, and which is so arranged as to prevent wasting of the current when the machine is stopped.

With these and other objects in view, the

' invention consists in certain novel features of construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claim. I

In the accompanying drawings:

Figure 1 is a diagrammatic view partly in elevation illustrating my improvements,

Fig. 2 is a broken view partly in section on the line 2-2 of Fig. 1.

Fig. 3 is a view in section on the line 33 of Fig. 1.

Fig. 4 is an enlarged view in elevation partly in section showing the mounting of the contact fork.

Fig. 5 is an edge view of Fig. 4, and

Fig. 6 is a fragmentary view of the opposite side-of, the device shown in Fig.4.

My improvements are to be used in connection with an ordinary type of winding machine, and-I have illustrated only such features f the windingmachine as are necessary to illustrate my invention.

1 represents a foot lever having a crank arm 2 inovablethereby and connected by a rod 3 with a, bell-crank-lever 4. A spring 5 is located around the rod 3 between a fixed part 6 and a collar 7 on rod 3, so that the spring exerts a pressure on the bell-cranklever, holding it in normal position.

The bell-crank-lever 4 is connected to a bar 8 having slots 9 therein through which pins 10 project to limit the sliding movement of the bar. The bar 8 adjacent its provided with a hook '18 having a laterally projecting lug 19 thereon engaged by a lever 20. This lever 20 is pivotally connected at one" end t a fixed part 21, and constitutes an armature attracted by an electro-magnet 22 below the same, so that when the magnet is energized, it operates toelevate the link 13, release bar 8, and allow spring'5'to move the bar inwardly.

23 represents a'spool which is drivenfby the machine, and the mechanismabove described omitting the lever 20 and. electromagnet 22 constitutes parts of a well-known type of winding machine.

The foot lever 1 is depressed to start the machine, and the link 13 falls into the position shown in Fig. 2, causing the winding operation to continue untilithe kick-01f lever is operated to release the same. It is, of course, to be understood that this kick-ofi lever can be manually operated, and such is the common practice with machines of this type, and my invention consists solely in the automatic operation of said lever as will be explained.

24 represents a bifurcated bracket which may be secured to the machine in any approved manner, and which supports my improved electric contact fork 25. The fork 25 is pivotally supported between its ends on a screw 26, and its upper bifurcated or forked end is. adapted to receive the silk thread 27 as it passes to the spool 23.

The lower end of the fork engages a wire spring 28, exerting sufficient pressure against the lowerend of the fork to hold it in normal position du'ring the'ordinary operation, but when a knot or slub reaches the fork and cannot pass through the same, it will cause the fork to swing on its pivot, and compel the lower end of the fork to engage an electric contact 29 which is secured to a bolt 30, the latter insulated from bracket 24.

Bolt 30 extends through bracket 24, and is provided on its other end with a contact 31 which is adapted to be engaged by a wire lever 32. This lever 32 is pivotally supported between its ends as shown at 33, and at one end is provided with a hook portion 34 which is supportedon the thread 27, so that when the thread breaks, or the end of the thread is reached, the lever will pivot, and one end thereof will engage the contact 31.

A contact 35 is secured to the machine frame 36 and insulated from the latter, and this contact is in position to be engaged by bar 8 when the latter is moved outwardly to operative position.

37 represents a source of electricity, and the electric circuit is as follows :-The battery or electric source 37 is connected by a wire 38 with contact 35. The other side of the battery or source of electricity is connected by a wire 39 with one pole of magnet 22. The other pole of the magnet is connected by a wire 40 with the bolt 30 which is electrically connected with both contacts 29 and 31. The bracket 24 and other parts of the machine constitute the ground, and in ordinary operation, the contact 35 is against bar '8. The circuit is,

however, broken by the position of the fork V 25 and lever 32.

hen a slub or knot strikes the fork 25 and causes it to pivot, it will engage contact 29, and the circuit will be as follows from battery 37 through wire 38, contact 35, and bar 8 to the ground. From the other side of the battery 37, through .wire

39, electro-magnet 22, wire 10, contact 29,

fork 25 to the ground;

Electro-magnet 22 will be energized so thatit will draw down lever 20, causing the lever 14 to elevate link 13, and allow spring 5 to withdraw the bar 8, which as above explained, causes the stopping of the winding machine.

As soon as the bar 8 moves away from contact 35, the electric circuit is'broken, and there can be no waste of current. The contact is made in like manner when the thread 27 breaks, or when the end of the thread is reached, as the lever 32 will engage contact 31 so that it will be seen that my improvements operate to stop the winding to prevent the movement of a knot or slub onto the spool and also to stop the winding'when a thread breaks.

The electric current cannot be wasted bebe started until the fork 25 and lever 32 are moved away from their contacts 29 and 31.

While I have described my invention as taking a particular form, it will be understood that the various parts of my invention may be changed without departing from the spirit thereof, and hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to make such changes and alterations as fairly come within the scope of the appended claim.

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

In a winding machine, the combination of a spring pressed bar movable by said spring to stop the machine; a link normally holding the bar against action of the spring; 7

a kick-ofl leverhaving a, portion for moving the link; an armature lever for moving the kick-off lever; a lever normally resting upon the thread; 'an'electro-magnet for actuating the armature lever; a bracket having an electric contact'thereon; a threadguiding fork movably connected to the bracket and normally positioned away from the contact, said'fork being movable by a knot or slub in the thread into engagement with the contact; and a source of electricity included in circuit with said first mentioned contact, said magnet, and the fork, whereby when the fork engages said contact an electric circuit is' completed, and the spring pressed bar is released by the link and moved by said spring to stop the machine, said second lever also being operative, when the thread is broken'or discontinued thereunder, to engage said contact to complete said electric circuit to stop the machine in said latter manner, substantially as described.

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

EDWARD n. GUDEBROD.

Witnesses: BIRGER SEA UID,

F. B. BINDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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