US3686736A

US3686736A - Tool for removing ring travellers

Info

Publication number: US3686736A
Application number: US85051A
Authority: US
Inventors: Francois Sanchez; Martial Jutras
Original assignee: Individual
Current assignee: Individual
Priority date: 1970-10-29
Filing date: 1970-10-29
Publication date: 1972-08-29
Anticipated expiration: 1989-08-29
Also published as: CA947482A

Abstract

A tool to easily replace ring travellers without damaging flange members on which the travellers are mounted. The tool has a holding action. One tool comprises a pair of shaft members. The shaft members are pivotably connected. The portions of the shaft members at one side of the pivot form a pair of operating handles, and at the other side a pair of aligned projecting elements adapted to engage a ring traveller on its inner opposed sides whereby on closure of said handles, the said projecting elements open and thereby open the said inner opposed sides. The handles are preferably bent with respect the to the projecting elements for ease of manipulation. The projecting elements are preferably provided with guard members.

Description

mite States Patent Sanchez et al.

[54] TOOL FOR REMOVING RING TRAVELLERS [72] Inventors: Francois Sanchez, 1390 Mayrand St.; Martial Jutras, 33 St. Marcel, both of Drummondville, Quebec, Canada [22] Filed: Oct. 29, 1970 [21] Appl. No.: 85,051

[56] References Cited UNITED STATES PATENTS 1,636,448 7/1927 Whipple ..29/207 1 Aug. 29, 1972 Primary Examiner-Thomas H. Eager Attorney-Thomas J. Morgan and Stephen Murphy ABSTRACT A tool to easily replace ring travellers without damaging flange members on which the travellers are mounted. The tool has a holding action.

One tool comprises a pair of shaft members. The shaft members are pivotably connected. The portions of the shaft members at one side of the pivot form a pair of operating handles, and at the other side a pair of aligned projecting elements adapted to engage a ring traveller on its inner opposed sides whereby on closure of said handles, the said projecting elements open and thereby open the said inner opposed sides. The handles are preferably bent with respect the to the projecting elements for ease of manipulation. The projecting elements are preferably provided with guard members.

9 Claims, 9 Drawing Figures PATENTED AUG 2 9 1972 INVENTORS Francois SANCHEZ Martial .BUTRAS TOOL FOR REMOVING RING TRAVELLERS This invention relates to a tool for removing or replacing ring travellers.

A ring traveller may be defined as a C-shaped element or an element fabricated from wire, substantially rectangular in shape and having the central portion of one of the long rectangle sides removed. The unbroken side of the rectangle functions as a guide wherein yarn is able to circulate. Ring travellers are mounted on flange members of highly polished ring rails. The ring rails themselves surround spinning bobbins and reciprocate along the bobbins while the ring travellers rotate around the rings at rates of many thousands revolutions per minute. These ring travellers rapidly wear out and they are regularly removed and replaced by new ones.

The instrument generally used to remove ring travellers consists of two flat elongated members spaced apart and having at each end a notch to receive a flange portion of a ring traveller. The instrument operates by pressing on a ring rail. Occasionally scratches are produced on the surface of such a rail. As a result, the function of the ring traveller is hindered and polishing of the ring rail becomes necessary. Also, the ring travellers thus disengaged are difficult to remove and, once removed, are easily lost as they tend to spring and fly away.

To overcome these difficulties, the applicant has invented a new tool for replacing ring travellers. This tool exerts no pressure on the ring rails and thereby eliminates scratches and problems related therewith. With this new tool, pressure is exerted only by the tool and solely on the ring travellers. This tool is generally easier to manipulate. The ring travellers may generally be removed more rapidly and very easily with very remote danger of flying, as is often the case with a standard tool.

Broadly stated, the tool for replacing ring travellers comprises a pair of pivotally connected shaft members, portions of said shaft members at one side of said pivot forming a pair of operating handles, and the portion of the members at the opposite side of the pivot forming a pair of aligned projecting elements adapted to hold a ring traveller on its inner opposed sides, whereby on closure of said handles, the said projecting elements open and thereby open the said inner opposed sides of the ring traveller. Preferably, near the pivot, the handles are bent with respect to said projecting elements in order that the projecting elements of the tool be easily introduced between the bobbin and the ring rail and that for better manipulation, the handles be outwardly directed and above the ring rail.

In another embodiment, an angle of about 3060, and preferably 45, exists between an imaginary plane drawn parallel to the end faces of the projecting elements and a second imaginary plane drawn across the handles so that when the projecting elements are engaged with the sides of a ring traveller, the handles are positioned so as to ease manipulation.

In another embodiment, the projecting elements are tapered for better access to said ring travellers. Still in another embodiment, the tapered projecting elements are provided with means for locking in said ring travellers; a recess for instance.

In another embodiment, the projecting elements are provided with guard members.

In another embodiment, the guard members are so shaped that they cooperate when the projecting elements are extended to hold a ring traveller in an erected position or a position perpendicular with respect to the sides of the projecting elements to be in contact with ring rails. 1

In other embodiments, the tool is provided with means to urge away the operating handles and means to control the projecting elements so that on closure, the projecting elements are able to enter near the corners defined between the long side of a ring traveller and its adjacent sides, and on opening, the projecting elements allow jest the necessary extension of the ring traveller to permit its passage onto or out of the ring rail.

In another preferred embodiment, the sides of the projecting elements, to be in contact with a ring rail, are. curved to snugly fit into the shape of the circular ring rail.

Referring now to Figures which illustrate embodiments of the invention:

FIG. 1 is a perspective view of a tool in operation to unlock a traveller guide on a ring rail, the tool being held with transparent hand.

FIG. 2 is an enlarged view of the tool of FIG. 1 showing the arrangement of the tool between the ring rail and the ring traveller.

FIG. 3 is an enlarged section view taken along long 3-3 of FIG. 2 showing the front view of the tool.

FIG. 4 is an enlarged top view taken along 4-4 of FIG. 2 of the tool with the handles partly broken away.

FIG. 5 is an enlarged view taken along 5.5 of FIG. 2.

FIG. 6 is a front view of the area surrounding projecting elements, with the projecting elements opened and in the process of unlocking a ring traveller.

FIG. 7 is a view of the partially disengaged assembly of FIG. 6.

FIG. 8 is a side view of the lower portion of the tool in open position.

FIG. 9 is a view showing the opposite face of the lower portion of the tool in open position.

Referring now to FIG. I, a tool 10 is illustrated, the tool to be inserted between ring rails 14 and bobbin 16 to remove ring traveller 18 which carried a yarn to be spun (not shown), along 14a during operation.

As shown in FIG. 2 the tool 10 comprises a pair of

shaft members

20 and 22 running alongside and being connected by pivot 24. The

shaft members

20 and 22 respectively form projections 25 and 26, (better seen in FIG. 9) but other means may be used to secure the pivot 24 to the

shaft members

20 and 22. The shaft members, however, need substantially parallel alignment when handles 28 and 30 are closed, whereby the projecting elements 32 and 34 (better shown in FIG. 3 and 8), are inversely open. The handles 28 and 30 may be curved so that they be comfortably held in the right hand of an operator between the thenar eminence and the fingers. Obviously, left-handed tools are also contemplated. A spring 36, or any other means for urging said handles, though not necessary, is preferred for maintaining the projecting

elements

32 and 34 closed. In order to have better accessibility to the ring traveller 18, the handles 28 and 30 are preferably bent away from the bobbin 16. For example, as shown in FIG. 1 and 2, the handles may be bent near the pivot region to form with the side of the projecting elements to be adjacent to the ring rail, at an angle greater than 90 (so that no interference occurs with the bobbin) and preferably 120- 1 50. 4

For greater ease of manipulation, the operating handles 28 and 30 may also be inclined so that an angle a of about 3060, and preferably 45, exists between an imaginary plane [3 formed parallel to the

front ends

40 and 42 of the

projecting elements

32 and 34, (better shown in FIG. 4 and 5), and a plane A parallel to the operating handles 28 and 30. Thus the handles form an angle with the front end of the projecting elements so that when the projecting elements are engaged with the sides of a ring traveller, the handles lean backward.

As shown in FIG. 3 and 8, the

projecting elements

32 and 34 are generally tapered in order to present the same more easily to the inner surface of the short sides of a ring traveller. In a preferred embodiment, the points of the projecting elements, in a contracted or resting position, are aligned to receive the corners of a ring traveller as seen in FIG. 8. Preferably these tapered projecting elements are provided with recesses 44 and 46 to lock in ring travellers when they are removed.

As shown in FIG. 4 and 5, the projecting elements may also be provided with

guard members

48 and 50 for easily inserting holding guide travellers and to force the perforated side of the ring traveller ahead for easy insertion thereof.

As shown in FIG. 6, the upper guard members 48 may also be so shaped as to press on the V-shaped extension 49 generally encountered on a ring traveller 18 thereby holding the traveller in a position substantially perpendicular to the

faces

32 and 34 to be in contact with the ring rail 14b and thereby enabling greater ease for the introduction or the removal of a new ring traveller into a ring rail, as shown at FIG. 7.

As shown in FIG. 8, preferably the front end of the sides of the projecting elements 320 and 34a to be in contact with a ring rail, are curved to snugly fit into the shape of the circular ring rail.

Preferably, as seen in FIG. 9, the tool may also comprise an adjustable (or if preferred, fix) guiding means 52 or the like to control the path 54 traced out by the projecting

elements

32 and 34 so that on opening, these projecting elements allow just the necessary extension of the ring traveller to permit their passage on or out of the ring rail.

Preferably, also, the tool may comprise some means such as projections 32b or 50b so that on closure, the projecting

elements

32 and 34 are able to enter just inside the comers defined between the long side of a ring traveller and its adjacent sides.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A tool for replacing ring travellers comprising:

a pair of shaft members, 4

said shaft members being pivotally connected,

the portions of said shaft members at one side of the pivot forming a pair of operating handles near the pivot, said handles being bent with respect to said projecting elements for ease of manipulation,

and the portions of the members at the opposite side lern n%2iale"3 e% nil iriie r ifii inner opposed sides whereby on closure of said handles, the said projecting elements open and thereby open the said inner opposed sides.

2. A tool for replacing ring travellers comprising:

a pair of shaft members,

said shaft members being pivotally connected,

the portions of said members at one side of the pivot being bent and forming a pair of operating handies,

and the portions of the members at the opposite side forming a pair of aligned tapered projecting elements adapted to engage a ring traveller on its inner opposed sides whereby on closure of said handles, the said projecting elements open and thereby open the said inner opposed sides.

3. The tool as defined of claim 2 wherein the projecting elements are provided with guard members.

4. The tool as defined in claim 3 wherein the upper guard member is curved to cooperate with the projecting elements and the other guard member, to press on the corner having a V-shaped extension defined between the large side of a ring traveler and one of its two adjacent small sides, so that the ring traveller can be kept erected or in a position perpendicular with respect to the sides of the projecting elements.

5. The tool as defined in claim 2 wherein the handles form an angle with the front end of the projecting elements so that when the projecting elements are onto the sides of a ring traveller, the handles lean backward.

6. The tool as defined in claim 2 wherein the tapered projecting elements are provided with means to lock in a ring traveller.

7. The tool as defined in claim 2 which comprises .means to urge away said operating handles.

8. The tool as defined in claim 2 which comprises means to control the path traced out by the projecting elements, so that on closure, the projecting elements are able to enter just inside the corners defined between the long side of a ring traveller and its adjacent sides, and on opening, the projecting elements allow just the necessary extension of the ring traveller to permit its passage on or out of the ring rail.

9. The tool as defined in claim 2 wherein the sides of the projecting elements to be in contact with a ring rail are curved to snugly fit into the shape of the circular ring rail.

Claims

1. A tool for replacing ring travellers comprising: a pair of shaft members, said shaft members being pivotally connected, the portions of said shaft members at one side of the pivot forming a pair of operating handles near the pivot, said handles being bent with respect to said projecting elements for ease of manipulation, and the portions of the members at the opposite side of the pivot forming a pair of aligned projecting elements adapted to engage a ring traveller on its inner opposed sides whereby on closure of said handles, the said projecting elements open and thereby open the said inner opposed sides.

2. A tool for replacing ring travellers comprising: a pair of shaft members, said shaft members being pivotally connected, the portions of said members at one side of the pivot being bent and forming a pair of operating handles, and the portions of the members at the opposite side forming a pair of aligned tapered projecting elements adapted to engage a ring traveller on its inner opposed sides whereby on closure of said handles, the said projecting elements open and thereby open the said inner opposed sides.

4. The tool as defined in claim 3 wherein the upper guArd member is curved to cooperate with the projecting elements and the other guard member, to press on the corner having a V-shaped extension defined between the large side of a ring traveller and one of its two adjacent small sides, so that the ring traveller can be kept erected or in a position perpendicular with respect to the sides of the projecting elements.

7. The tool as defined in claim 2 which comprises means to urge away said operating handles.