US1110988A - Bobbin cleaner and polisher. - Google Patents

Description

L. HOLT.

BOBBIN CLEANER AND POLISHER.

- I APPLICATION FILED JUNE 3,1913. 1 1 1 0,988,, Patented Sept. 15,1914.

3 SHEETS-SHEET 1.

AUnorneys.

L. HOLT. BOBBIN CLEANER AND POLISHER. I APPLICATION FILED JUNE 3, 1913. 1,1 1 0,988. Patented Sept. E5, 1914.,

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Attorneys i m ===I== Y L. HOLT. BOBBIN CLEANER AND POLISHER.

1,1 10,988, APPLICATION FILED JUNE 3, 1913. Patented Sept.

8 SHEETS-SHEET Inventor,

m o Attorr eys.

To all whom it may concern:

- the bobbin and without cutting the thread.

LAFAYETTE HOLT, OF BURLINGTON, NORTH GABQLINA, ASSIGNOB. OF ONE-HALF TO EUGENE HOLT, OF BURLINGTON, NORTH CAROLINA.

BOBBIN CLEANER AND POLISHER.

Specification of Letters Patent.

Patented dept. 15, 19914.

Application filed June 3, 1913. Serial No- 771,513.

Be it known that I, LAFAYETTE Hour, a citizen of the United States, residing at Buri lington, in the -county of Alamance and State of North Carolina, have invented a new and i useful Bobbin Cleaner and Polisher, of i which the following is a specification. i By way of explanation it may be'stated E that a quantity of waste thread commonly i accumulates upon the tapered portion of l the bobbin or quill of a loom, and this quantity of waste thread must be removed before the bobbin is re-wound. In order to remove this waste thread, a knife hitherto has been run longitudinally of the bobbin, to sever the thread. This operation is fraught with two disadvantages. First, the thread does not come from the bobbin in a continuous length, but is severed into a plurality of small pieces having little or no utility. Secondly, the bobbin itself is scratched and slit longitudinally, to the manifest damage thereof.

One. object of the present invention is to provide a device which will remove the waste thread from the bobbin without damaging Another object of the invention is to provide a device of the type above described which will not only clean the bobbin but will polish the same.

Another object of the invention ,is to provide a device of the ty e above described which, in operation, wil conform properly to all portions of the tapered part the bobbin.

It is within the scope of the invention to improve generally an to enhance the util-- ity of, devices of that type to which the present invention appertains.

With the above and other objects in view which will appear as the description'proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed Without departing from the spirit of the invention.

In the drawings :Figure 1 shows the invention in top plan; Fig. 2 is a side elevation; Fig. 3 is a top plan on an enlarged scale, of themechanism whereby the bobbins are stripped; Fig. 4 is a side elevation of the structure shown in Fig. 3; Fig. 5 is a transverse section taken through the bobbin-rerecelving magazine; Fig. 6 is a transverse section through the arms which cotiperate to strip the bobbin Fig. 7 is a diagrammatic view illustrating the manner in which the stripping fingers travel along the bobbin; Fig. 8 is a side elevation of the head and the plunger whereby the head is carried; Fig. 9 is a fragmental transverse section showing the means whereby the stripping arms are pivotally mounted; Fig. 10 is an end elevation of the plunger-carried head. F 1g. 11 is a perspective of one of the spring sup-porting arms; Fig. 12 is a cross-sectional detail showing the cross head in elevation.

In carrying out the invention there is provided a base 1 equipped with transverse guides 2 receiving for longitudinal movement, a plunger 3. By means of bolts or lag screws at, a cross head 5 is adjustably secured to the plunger 3. Pitmen 6 at their forward ends are united by pivot elements 7 with the ends of the cross head 5. By means of pivotelements 8, the rear ends of the pitnien 6 are connected to gear wheels 9 secured to a shaft 10 journaled for rotation in a bearing 11 on the base 1 and disposed transversely of the base. The gear wheels 9 are provided with a plurality of openings 12, located at different distances from the axis of the shaft 10, to the end that the throw of the pitmen' 6 may be varied by mounting the pivot elements 8 in the various openings 12.

The gear wheels 9 mesh into pinions 14 mounted on a shaft 15 journaled for rotation in bearings 16 on the base 1. The shaft 15 may be equipped with a pulley 17, or with any other suitable means whereby rotation may be imparted'to the shaft from a prime mover. The pinions 14 mesh into gear wheels 18, corresponding to the gear wheels 9, to provide for a duplication of the structure hereinbefore and hereinafter described. Y

Fixed t0 and upstanding from the base 1 are studs 19 forming pivotal supports for arms 20, mounted for radial movement parallel to the base 1, the arms 20 being provided with bearings 20 which surround the studs 19. At their forward, free ends, the arms 90 terminate in rectangularly disposed fingers 21 provided with notches 22, of V- shape, (see Fig. 6) the walls of the notches 22 being straight. In the base 1 between the arms 20 there is an opening 23, one end of which is reduced and extended through the end of the base as shown at 23.

As disclosed most clearly in Fig. 3, wedges 24 are applied to the inner faces of the arms 20, the wedges 24 being provided with shanks 25 extending through longitudinal slots 26 in the arms, the shanks 25 carrying nuts 27 which, engaging the arms, serve to hold the wedges 24 in place, the slots 26 serving to permit an adjustment of the wedges.

The invention includes a head 28 shown in detail in Figs. 8 and 10, the head being mounted to slide upon the base 1, longitudinally of the base. The head 28 is provided with an opening 34 in which the plunger 3 is mounted to slide, the head being equipped in its sides with slots 32, receiving a pin or projections 31 on the plunger 3, to the end that the plunger 3 may operate the head 28, it being possible, nevertheless, for the head 28 to have a slight movement upon the plunger 3, longitudinally of the plunger and independently of the plunger. The head 28, as clearly shown in Fig. 3, is provided with inclined surfaces 29 adapted to coiiperate with the wedges24. A compression spring 30 surrounds the plunger 3 and abuts at one end against the head 28, the other end of the spring 30 abutting against the forward guide 2. In the top of the head 28 there is a channel 33. The head 28 at its forward end is cut away as indicated at 35, so that the'base of the forward portion of the opening 34 in which the plunger 3 slides, constitutes a bobbin-receiving shoulder 36 (see Fig. 4). The forward end of the plunger 3 is provided with a depressed, bobbinreceiving seat'37, as shown in Fig. 4.

Extended transversely of the base 1 is a.

pair of arms 38, one of which is shown in Fig. 11. The arms 38 are equipped with longitudinal slots 39, receiving securing elements 40 which enter the base 1 to hold the arms 38 upon the base. The outer ends of the arms 38 terminate in upstanding fingers 41 having openings 42 receiving slidably, the outer ends of rods 43. The inner ends of the rods 43, as shown in Fig. 3, are provided with transverseheads 44, each head being equipped with a tip 45, received in a. re-' cess formed in the outer face of the arm 20. Compression springs 46 surround the rods 43 and abut at one end against the heads 44, the other ends of the springs 46 abutting against the fingers 41.

A bobbin magazine is supported above the free ends of the arms 20, and this magazine may include a plate 47, one end of which is upheld by the studs 19, the plate 47 being held upon the studs bv nuts 48. as will be understood best from Fig. 9. The for- Ward end of the plate 47 is supported in any desired manner, as by legs 49 which bear upon and are secured to the base 1. Attached to the plate 47 is a transverse wall 50, connected with side walls 51, the plate 47 being open between the side walls. The side walls 51 and the wall 50 define a magazine for the superposed bobbins. A closure for the open forward end of the magazine is provided, the closure being denoted by the numeral 52 and being pivoted as indicated at 53 to the side walls 51 of the magazine. The closure-52'along its edges is provided with fingers 54 which overlap the walls 51 of the magazine, to prevent transverse movement of the closure. The closure is equipped with lateral extensions 55, and retractile springs 56 connect the extensions 55 with the transverse wall 50, so as to maintain the closure normally in abutment with the end of the magazine.

In Fig. 7, the bobbin is denoted generally by the numeral 57 and includes a stepped, tapered head 58 and a shank 59. A plurality of bobbins 57 are placed in superposed relation within the magazine 5150, the head 58 of the lowermost bobbin being supported by the fingers 21 of the arms 20 and the shank 59 of the lowermost bobbin resting in the recess or channel 33 of the head 28.

If the shaft 15 be rotated, movement will be imparted to the gear wheels 9 through the medium of the pinions 14. The pitmen 6 will thereupon draw the cross head 5 rearwardly, the plunger 3 moving rearwardly along with the cross head. The projections 31 which are carried by the 'plunger'3 engage the rear ends of the slots 32 in the head 28, as shown in Fig. 8, and the head 28 will therefore be drawn rearwardly. As the head 28 moves rearwardly, the inclined surfaces 29 of the head 28 engage the wedges 24 on the arms 20 and effect a separation of the lingers 21,, the arms 20 swinging radially upon their pivotal mountings 20 19. The head 58 of the bobbin 57 will therefore drop between the ends of the fingers 21 and will be centered by the slot 23 in the base. At the same time, when the head 28 is retracted, the rear end of the shank 59 of the bobbin 57 will move out of the recess or channel 33 in the head 28 and drop-upon the shoulder 36, a rearward movement of the bobbin being prevented by the magazine.

So soon as the plunger 3 forwardly, the inclined faces 29 of the head 28 will move out of engagement with the wedges 24, the springs 46 causing the notches 22 in the fingers 20 to engage with the head 58 of the bobbin, as shown in Fig. 7. At the inception of the forward movement of the plunger 3, the spring 30 is under compression, and the head 28, therefore, will for a time move forwardly along with the plunger. Ultimately, however, the compressive effort of the spring 30 ceases, and the head 28 lags starts to move behind the plunger 30 until the projections 31 on the plunger 3 have arrived at the forward ends of the slots 32 in the head 28. Recalling that the rear end of the shank 59 of the bobbin 57 is engaged in the seat 37 which is formed in the end of-the plunger 3, it is obvious that the bobbin will be advanced by the action of the plunger. When the bobbin is advanced in the manner above pointed out, the fingers 21 of the arms 20, actuated by the springs 46, serve to strip the waste off the tapered head 58 of the bobbin. This operation will be dealt with in greater detail hereinafter. The plunger 3 forces the lowermost bobbin 59 outwardly in a longitudinal direction, between thefingers v 21 and the waste, in the form of a ring, drops through the opening 23 in the base 1. When the plunger 3 is at the limit of its forward stroke, the forward-end of the plunger protrudes slightly beyond the forward end of the head 28, the ring of waste material being received upon the protruding forward end of the plunger. When the rearward movement of the plunger 3 begins, the plunger, for a time, moves independently of the head 28 until the projections 3l-have arrived at the rear ends of the slots 32 as shown in Fig. 8. The forward end of the head 28, therefore, acts as an abutment for the ring of waste material, permitting the withdrawal of the forward end of the plunger 3 from within the ring of waste material, whereupon the same'will drop through the openin 23, in the manner hereinbefore described.

eferring particularly to Fig. 7 it will be observed that the finger 21 is beveled upon its forward face as indicated at 60, and to the rear of the bevel 60, the finger 21 terminates in a surface 61 which is at right angles to the direction of extent ofthe finger 21. When, as shown at the right hand end of Fig. 7, the fingers 21 begin to strip the waste oil the head 58 of the bobbin, the fingers 21 are disposed at an acute angle to the axis of the bobbin, and therefore, the fingers will engage properly with the waste. By the time that the fingers 21 have traveled onto the shank 59 of the bobbin, as shown at the left hand end of Fig. 7, the surfaces 61' of the fingers are parallel to the axis of the shank 59 of the bobbin. There is, there fore, no scraping action of the fingers 21 upon the shank of the bobbin at the point indicated, and the bobbin will be polished as the same is thrust between the fingers.

Especial attention is directed to the fact that, as clearly shown in figure 6, the notches 22 in the fingers 21 are in V-shape and comprise straight edges. Owing to this construction, the notches will conform to the taper ofvthe head 58, throughout the entire length of the head, in a manner not possible when the notches are of curved form, it be 65 ing obvious that if the notches are curved,

'they cannot conform properly to the head 58 throughout the entire length of the head. The bobbin, owing to the construction above pointed out, not only is not slit or scratched or cut, but, upon the other hand, is as it is thrust between the fingers.

Especial attention is directed to the movable, spring actuated closure 52. If, during the operation of the machine, a bobbin should be advanced before it is in proper position, the closure will yield and open, thereby permitting a longitudinal movement of the bobbin and preventing a disorganization of the machine.

The magazine 5150 is an important feature of the invention, since, owing to the provision of the magazine, it is not necessary to feed each bobbin separately into the path of the plunger 3.

Although the fingers 21 have been shown as integral with the arms 20, it is obvious that the fingers may be in the form of removable dies. The foregoing change lying within the skill of a mechanic, merits neither illustration nor extended description.

Having thus described the invention, what is claimed is 1. In a device of the class described, a bobbin magazine; stripping mechanism op-'- erating at the discharge end of the magazine; bobbin advancing means cooperating with the stripping mechanism; and a movable closure carried by the magazine, the closure being adapted to open in the direc tion of travel of the bobbin advancing means. I

2. In a device of the class described, a base; a yieldable stripping mechanism carried by the base; and bobbin advancing means located within the contour of the stripping mechanism and operating at times in engagement with the stripping mechanism to open the same, and at times independently of the stripping mechanism.

3. In a device of the class described, a pair of stripping elements provided with straight-Walled notches each defining a plurality of bobbin engaging contact points; a bobbin engaging element; and means for producing relative movement between the stripping elements upon the one hand and the bobbin engaging element upon the other hand, to cause the contact points to trace straight paths longitudinally of the bobbin.

4. In a device of the class described, a base; a pair of stripping elements carried by the base; a bobbin engaging plunger mounted to slide with respect to the base; a head having a limited movement upon the plunger; interengaging elements upon the head and stripping elements for efiecting a separation of the stripping elements; and resilient means for moving the stripping elements toward each other.

5. In a device of the class described, strippolished 70 path of the plunger,

ping mechanism; a bobbin supporting head movable toward and away from the stripping mechanism and having a shoulder;'a plunger on which the head is mounted for limited sliding movement; means for retracting the plunger and the head to cause the bobbin to drop upon the shoulder in the and for advancing the plunger with respect to the head and toward the stripping mechanism.

6. Ina device of the class described, a pair of movable stripping members; a head movable toward and away from the stri ping members and cooperating with the stripping members in supporting a bobbin, the head having a shoulder; a plunger on which the head is mounted for limited sliding movement; and means for retracting the plunger and the head to cause the bobbin to drop upon the shoulder, in the path of the plunger and between the stripping members, and for advancing the plunger with respect to the head and with respect to the stripping members.

7. In a device of the class described; a pair of movable stripping members; a head movable toward and away from the stripping members and cooperating with the stripping members in supporting a bobbin, the head having a shoulder; a plunger on which the head is mounted for limited sliding movement; and means for retracting the plunger and the head to cause the bobbin to drop upon the shoulder, in the path of the plunger and between the stripping members, and for advancing the plunger with respect to the head and with respect to the stripping members; interengaging elements upon the head and upon the stripping members for separating the stripping members; and means for moving the stripping members toward each other.

8. In a device of the class described, a plunger structure; a bobbin engaging head having limited movement on the plunger structure; a compression spring interposed between the head and the plunger structure; yieldably actuated stripping members; and interengaging elements on the head and the stripping members for causing a separation of the stripping members.

9. In a device of the class described, a slidably mounted head; a bobbin engaging plunger movable in the head and adapted to protrude beyond the head; stripping mechanism adapted to deposit the strippe material upon the protruding end of the plunger; and means for retracting the plunger in the head to disengage the stripped material from the protruding end of the plunger.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

LAFAYETTE HOLT.

Vitnesses:

SELINA WILLSON, I. E. SIMPSON.

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