US2319689A

US2319689A - Check for picker sticks

Info

Publication number: US2319689A
Application number: US459549A
Authority: US
Inventors: John W Jones
Original assignee: HARRIETT K BELLWOOD
Current assignee: HARRIETT K BELLWOOD
Priority date: 1942-09-24
Filing date: 1942-09-24
Publication date: 1943-05-18
Anticipated expiration: 1960-05-18

Description

M y 3 J.W. JQNES 2,319 8 CHECK FOR PICKER STICKS Filed 'Sept. 24, 1942 Patented May 18, 1943 UNITED CHECK FOR PICKER STICKS John W. Jones, Greenville, S. 0., assignor to Harriett K. Bellwood, Greenville, S. 0.

Application September 24, 1942, Serial N 0. 459,549

7 Claims.

My invention relates to looms and has particular reference to checks for pickersticks.

An important object of the invention is to provide a device of the above mentioned character which is arranged adjacent to the oscillating stand, and which will check the movement of the picker stick in opposite directions.

A further object of the invention is to P vide a checking device of the above mentioned character having parts which are mounted upon the shoe and oscillating stand of the conventional loom without altering the construction of the same.

A further object of the invention is to provide a device of the above mentioned character which will dispense with the use of the ordinary spring actuated drum to return the picker stick to the outer position.

A further object of the invention is to provide a checking device for the picker. stick which is simple in construction and durable and dispenses with the use of the conventional picker stick check'strap.

A further object of the invention is to provide a device of the above mentioned character, which is adjustable to regulate the checking action upon the picker stick and the yielding action which returns the picker stick to the outer position.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of a picker stick check embodying my invention, showing the same in use, and the picker stick in the intermediate or vertical position,

Figure 2 is a similar view, parts broken away. showing the picker stick in the outer inclined position,

Figure 3 is an exploded perspective view of the unit which is mounted upon the oscillating stand,

Figure 4 is a transverse section taken on line l4 of Figure 2,

Figure 5 is a perspective view of theupper unit which is mounted upon the shoe,

Figure 6 is a side elevation of the upper unit showing the relative position between, the same and the bumpers when the picker stick is in the-outer inclined position,

- Figure 7 is a similar view showing such rela' tive position when the picker stick is in the intermediate or vertical position, and,

Figure 8 is a similar view showing the relative position when the picker stick is in the inner inclined position.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral Ill designates a loom frame, carrying the lay rock shaft ll. Rigidly mounted upon the rock shaft H is an oscillating stand l2, having a shoe l3 mounted thereon in the usual manner. The shoe l3 oscillates with the stand l2 and also rocks longitudinally of the stand as is customary. As more clearly shown in Figure 4, the stand l2 has a depending arm or bracket I4, formed integral therewith and positioned at one longitudinal edge of the stand. The shoe I3 is provided with the usual opening for receiving the lower end of a picker stick I5, secured to the shoe by a heel bolt l6, passing through a cap H and the shank l8 of-the shoe. The shank l8 also has screw-threaded engagement with an adjusting screw [9, engaging a parallel-tongue 20. The set-screw l9 has a lock-knot 2|. By manipulating the bolt l6 and setscrew [9 the picker stick l5 may be angularly adjusted with relation to the shoe I3. The picker stick I5 is thrown inwardly by suitable means shown at 22'. The construction thus shown and described is that of the conventional loom.

My improved picker stick check includes a lower unit comprising substantially horizontal preferably rigid straps 22 and 23, arranged beneath the oscillating stand l2 and extending substantially parallel therewith. These straps are preferably formed of metal and their inner ends overlap and are provided with longitudinal slots 2 At their outer ends the straps 22 and 23 carry upstanding ears or extensions 25, in turn carrying bolts 26. These bolts pass through openings formed in bumpers 21, which are preferably cylindrical. The bumpers 21 are preferably iormed of leather or other fibrous material and the bolts 26 have screw threaded ends to engage within screw threaded openings 28 formed in cars 25. By adjusting the bolts 25 the bumpers may be turned upon the bolts to compensate the wear and subsequently again clamped to the ears. The numeral 21' designates a substantially horizontal support plate arranged beneath the oscillating stand and above the straps 22 and 23. This plate is preferably formed of metal and is preferably rigid. The plate 2! has a lateral extension 28' carrying a depending arm 29, provided with an opening 30 near its lower end. The plate 21 has an opening 3|, to receive a bolt 32, passing through the slots 24, and carrying a nut 33. By adjusting the bolt 32 the straps 22 and 23 may be adjusted longitudinally of the plate 2'! and clamped thereto in the selected adjusted position. In this manner the distance between the bumpers 2'! may be varied. The plate 27 is also provided with a longitudinal slot 34.

The lower unit is rigidly attached to the oscillating stand |2, and to effect this attachment the depending arm 29 is placed upon the inner face of the depending arm M, and these parts are clamped together by a bolt 35, passing through the opening 3|! and an opening 36 in the arm M. The usual spring operated drum which returns the picker stick to the outer position is omitted with its bolt or attaching means which entered the opening 36.

The numeral 31 designates a hook, the upper end of which is screw threaded and passes through the longitudinal slot 34 and carries nuts 35, above and below the plate 21. A heel-strap 39 is secured to the lower end of the picker stick and is connected with a pull-spring 49, the opposite end of which is connected with the hook 31. The spring 4|) and heel-strap 3 9 swing the picker stick to the outer inclined position, The tension of the pull-spring 49 may be regulated by adjusting the hook 3,1 longitudinally of the plate 21.

It is thus apparent that the lower unit is mounted upon the oscillating stand without in anyway altering the construction of the stand.

The upper unit of the device comprises an in vertedV-shaped holder or head 4|, which is prefe1 'ab1y rigid and preferably formed of metal. This holder has an attaching plate 42 rigidly securedthereto at its apex, The plate 42 has uppeer and lower openings 43 and 44. The upper opening 43 receives the set-screw l9 while the lower'opening 44 receives the bolt 6. The holder 4| is providednear its lower ends with inwardly facing bolts 45, rigidly secured thereto by any suitable means. These bolts 45 pass through longitudinalslots 46 formed in preferably rigid arms 41, These arms are disposed inwardly of the holder 4 |w and diverge downwardly and their up. per ends are slightly bent laterally, as shown at 41, to permit of a proper swinging action of the arms 41 upon the bolts 45, The inner or upper ends of the arms .1 contact with a wall 48 included in the head or holder 4| to prevent displacement of the, arms 41, The inner ends of the bolts 45 are screw-threaded for receiving nuts 49, engaging springs carried by the bolts 45. It is thus apparent that the arms 47 will swing upon the bolts 45. in the plane of the holder 4|, but not at a right angle to this plane. The tension of the springs 59 may be regulated by adlusting the, nuts 49.

It is thus. apparent that the upper unit is mounted upon the shoe l3 without altering the construction of the shoe.

When the lower unit is assembled upon the os cillating stand and the upper unit mounted upon the shoe, the downwardly diverging arms 4! are arranged between and contact with the bump-. ers 27. When the picker stick is swung to the outer inclined position the arm 4'! to the right, Figures 2 and 6, compresses its engaging, spring 50, thus checking the outward movement of the picker stick. When the picker stick is in the. intermediate. or vertical position, Figures 1 and 4,

the arms 4| engage the bumpers but do not compress the springs and hence there is little, if any, stopping or checking action exerted upon the picker stick. When the picker stick is swung to the inner inclined position, the arm 41 to the left, Figure 8, compresses its engaging spring and a checking action is exerted upon the picker stick. Ordinarily the device will exert a greater checking action upon the picker stick upon the inward swinging movement of the picker stick than upon its outward swinging movement. It exerts a checking action upon the picker stick when swinging in both directions. By adjusting the nuts 48 the degree of checking action in either or both directions of the movement of the picker stick may be regulated or varied, as desired.

The bumpers 21 are adjustable to vary the distance between them and this adjustment may be employed to compensate for the wear upon the bumpers or may also be employed to regulate the extent of checking action that the arms 4.! exert upon the picker stick.

It is to be understood that the form of my invention herewith shown and described is tobe taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to, without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described my invention, what I claim is:

1. A picker stick check for a loom having a picker stick, a shoe secured to, the picker stick and an oscillating stand, said check including a lower unit mounted upon the oscillating stand and including spaced bumpers, an upper unit mounted upon the shoe and including resilient devices engaging the bumpers.

2, A picker stick check for a loom having a picker stick, a shoe secured to the picker stick and an oscillating stand, said check including a lower unit mounted upon the oscillating stand and spaced bumpers mounted upon the lower unit, an upper unit mounted upon the shoe and including a holder, arms carried by the holder and arranged to engage the bumpers, and resilient means acting upon the arms to oppose their relative movement with respect to the holder.

3. A picker stick check for a loom having a picker stick, a shoe secured to. the picker stick and an oscillating stand, said-check including a lower unit mounted upon the stand, spaced bumperscarried by the lower unit, an upper unit mounted upon the shoe, arms arranged to engagethe inner sides of the bumpers, means to connect the arms with the holderso that the arms may swing with relation to the holder, and resilient means to oppose the swinging movement of the arms.

4. A picker stick check. for a loom having a picker stick, a shoe secured to the picker stick and an oscillating stand, said check including a lower unit mounted upon the stand, spaced bumperscarried by the lower unit, an upper-unit mounted upon the shoe, arms arranged to engage the bumpers and having openings formed therein, bolts connected with the holder and passing through the openings in the arms, springs carried by thebolts and engaging thearms, and nuts carried by the. bolts. to engage the springs and re late their tension.-

5. A picker stick check for a loom having a picker stick, a shoe secured to the picker stick and an oscillating-stand, said check including a and an oscillating stand having an arm provided with an opening, a plate arranged beneath the oscillating stand and having an arm provided with an opening, an element passing through the openings in the arms to secure them together, straps longitudinally adjustably mounted upon the plate, bumpers mounted upon the straps, a holder mounted upon the shoe, and resilient devices carried by the holder and arranged to engage the bumpers.

7. A picker stick check for a loom having a picker stick, a shoe secured to the picker stick and an oscillating stand having an arm, a plate arranged beneath the oscillating stand, means to secure the plate to the arm, straps longitudinally adjustaloly mounted upon the plate, burnplers mounted upon the straps, a holder mounted upon the shoe, resilient devices carried by the holder and arranged to engage the bumpers, and elements secured to the plate, and resillient means connected with the picker stick to swing the same outwardly and connected with said element.

' JOHN W. JONES.