US1113574A - Method of attaching ferrules to umbrella-cases. - Google Patents

Description

W. G. OBRIEM METHOD OF ATTAGHING FERRULES T0 UMBRELLA GASES.

APPLICATION FILED NOV,..23, 1911- 1, 1 1 3,574. Patented Oct. 13, 1914.

2 SHEBTS-SHEET 1.

W. G. 0BRIEN.. METHOD OF ATTAGHING FBBRULES T0 UMBRELLA GASES. AJPPILIGATIQN FILED NOV. 23, 1911.

1, 1 1 3,574. Patented Oct. 13, 1914.

2 SHEETS-SHEET 2.

WITNESSES INVENTOR M QNM/ W651, fl w THE NORRIS PETER" IA) PHOTOLITHO.. WASHINGTDN. D. C

UNITED sTATEsrATENT OFFICE.

WILLIAM C. OBRIEN, OF BALTIMORE, MARYLAND.

METHOD OF ATTACIIING FERRULES TO UMBRELLA-CASES.

Specification of Letters Patent.

Application filed November 23, 1911.

Patented Oct. 13, 1914.

Serial N0. 662.000.

rules is simply to bind the fabric to them by means of a piece of flexible wire or thread, the operation being performed entirely by hand. This method is tedious and expensive, and is open to the further obj ection that the results are not satisfactory, since it has been found in practice that the fastening is not secure, and that the ferrules frequently become detached and lost.

The object of the present invention is,

therefore, to provide an improved method for attaching the ferrules, which method is carried out by means of a machine, whereby, much more rapid and economical operation is obtained, and a much neater and stronger fastening produced.

In order that my improved method, and machine for carrying the same into effect, may be clearly understood, reference is had to the accompanying drawings, forming part of this specification, and in which Figure 1 is a perspective view of thecomplete machine; Fig. 2 1s a fragmentary side elevation of part of the machine showing the stripping device, parts being shown in section; Fig. 3 is a side elevation of one of the ferrules, this view also illustrating, in

section, a ring which I employ as a fastening means; Fig. 4 is a view similar to Fig.

8, showing the appearance of the ferrule, and ring after having been operated upon by the machine; Figs. 5, 6, 7 and 8 are detail sectional views illustrating the successive steps employed in assembling and uniting the parts, these views also showing my improved'dies; Figs. 9 and 10 are fragmentary sectional elevations showing my improved stripping device and method of using the same.

Referring to the drawings in detail and more particularly to Fig. 3, B represents a furrule of the usual type such as is ordinarily employed to form the tip of umbrella cases. This ferrule comprises a tapering sheetmetal ring or shell, in the larger portion of which is formed an exterior annular groove or depression 6, the shoulders c and d at themargins of the groove being of slightly different diameters,the shoulder 0 being the smaller. The groove, as Well as its marginal shoulders are spaced from the ends of the ferrule, but being closer to one end than the other. i

In forming my improved fastening I make use of a ring G which, as clearly shown in Fig. 8, is capable. of passing over the shoulder 0 but cannot pass over the shoulder d. This enables thering to be slipped over the ferrule fromthe small end thereof and the shoulder cl then acts as a stop to position the ring adjacent the groove 6.

In carrying out my improved method I employ a machine embodying as its essential features a pair ofdiemembers 10 and 14, which are shown in Figs. 5 to 8, inclusive. By reference to these figures, it will be seen thatthelower member 14 is provided at its upper end with amatrix 13 the upper part of which conforms to the shape of the lower part of the ferrule B. The upper diemember 10 is in the nature of a plunger, and is provided with a nose12 of slightly smaller diameter than thematrix 13; 1 Between thenose 12 and body 10 of this die member there is provided an enlarged portion 10 having curved-or rounded sides, as clearly shown in Figs. 7 and 8, and separated from the body 10 of the die member by meansof an annular shoulder 10". The size of the enlarged portion 10 is such that it can be forced into the large end of the ferrule.

The method of attaching a ferrule to an umbrella case will now be described, the case itselfbeing of any desired construction, and being indicated in itsentirety by the reference character A.

The case having previouslybeen turned wrong side out is first slipped'over thedie member 14,, as shown in Fig. 5, anda ringC is then threaded over the end a of the case.

Aferrule B is then inserted inthe end of the case the smaller end down, as shown in Fig. 6, and the ring C adjusted untll' it occupies a position adjacent the groove in the ferrule. The parts thus assembled are then lowered until the ferrule seatssnugly in the matrix, as shown in Fig. 7. The die member or plunger 10 is then moved downof a curved arm 4 serves to return the lever automatically to,

wardly toward the matrix. It will be noted that the upper end 6 of the ferrule B engages positively against the annular shoulder lO and that, as the plunger moves downwardly, the curved portion 10 thereof is forced into the upper end of the ferrule, thus expanding the same. As the member 10 continues to move toward themember 14 the metal forming the walls of the groove 7) collapses, as shown in Fig. 8, the metal being folded sharply back upon itself, as indicated at b, and also at 0, thus forming an annular head 0 in place of the original shoulder 0. It will be noted that this bead c is of larger diameter than the original shoulder a, owing to the fact that the metal has been crowded outwardly by the die member and matrix. It will also be noted that the upper edgee of the ferrule, as shown in Fig. 8, is of greater diameter than the edge eof the original ferrule. It will therefore be observed that the ferrule has been expanded both above and below the ring 0, and this results in confining the ring between these expanded portions, and in causing the fabric to be securely gripped between the ferrule and the ring. Fig. 4, shows the ferrule as it appears after having been deformed in the manner just described, the fabric being omitted for the sake of clearness.

For carrying into effect the method above describedlI may conveniently employ the machine-illustrated in Figs. 1 and 2. Referring to these figures it will be seen that the machine comprises a base 1 carrying a standard 2, which has a curved bifurcated upper end 3, between the forks of which is pivoted an operating lever 4, by means of a pin 5. The operatingv lever has a handle 6 and is also provided with a counterweight 4 which is attached to the lever by means This counterweight the position shown in Fig. 1. In the "lower end of the lever 4 is formed a, cam slot 7, in which works a roller (not shown) mounted on apin 8, carried by the head?) of a plunger or die member 10, which is slidably mounted for reciprocatory movement in a bracket 11, carried by the standard .2. The diemember 14 having thematrix 13 at its upper end is mounted in asocket 15 carried by anarm 16 pivoted at 17 to the base 1. Thisarm 16 and die member v 14 arecapable of occupying either one of two positions. When in the position shown "in the drawing, the outer end of the arm ment of the arm. In the center of each seat 18 and 19 is preferably arranged a spring pressedpin 21 having a rounded point which projects into a depression formed on.

the lower side of thearm 16, and which serves to resiliently hold such arm in either one of its positions. Aspring 22 secured to the base as by means of ascrew 23 presses thepin 21 upwardly.

Immediately over the seat 19 is arranged asecond plunger 24 which constitutes the stripping device now to be described. Thisplunger 24 has at its lower end a reduced portion ornose 25, which is of such size as to snugly fit within the smaller end of a ferrule B. The plunger is mounted for reciprocatory movement in asleeve 26 which is secured to abracket 27 carried by the standard 2. A laterally extending rod or handle 28 is secured to the upper part of theplunger 24 and projects through a slot 29 formed in thesleeve 26. The slot 25) is provided at each side with lateral offsets ornotches 30 and 31 arranged at different heights, and into either of which therod 28 is adapted to fit. A coil spring 32 lies within thesleeve 26 and surrounds theplunger 24 below therod 28, so that it tends to force the plunger upward.

Considering Fig. 1, in connection with Figs. 5 to 8, previously described, the operation of the lever and plunger 10 in carrying out the deforming operation which results in attaching the ferrule to the umbrella. case will be readily understood.

A fter the deforming operation is complete, as shown in Fig. 8, it is then necessary to remove the umbrella case from the die and to turn it right side out. For this purpose thedie member 14 is swung on its pivot until it rests upon the seat 19. Theplunger 24 is then pressed downwardly by hand until therod 28 reaches the level of thenotch 31. Therod 28 is then swung laterally so as to engage the notch and lock the plunger in its lowermost position. This position is shown in Fig. 9, and by reference to this figure it will be seen that thereduced end 25 of the plunger extends through the ferrule while the body of the plunger engages the inner walls of the ferrule and holds it in position upon thedie member 14. The lower end of the case may then be seized and pulled upwardly over theplunger 24, thus turning the same right side out as shown in Fig. 10. Therod 28 is then swung out of thenotch 31 and released, whereupon the spring 32 forces it upward and disengages the plunger from the ferrule. The complete case, with the ferrule attached, may then be removed from the machine. Should it be desired to turn a finished case wrong side out again for any purpose, whatever, this may be done by first slipping the case over thedie member 14 with the ferend of the ferrule, and it may be locked in this position by swinging therod 28 into engagement with thenotch 30. The lower end of the case A may then be pulled upwardly around theplunger 24 thus turning the case inside out, whereupon the plunger may be released, as before, and the case re moved. It will therefore be observed that by the use of my improved stripping device the finished cases may be quickly reversed and turned either way at will. By so arranging the stripping device that the'forming die may be swung into cooperative re lation therewith, much time in the manipulation of the cases is saved and rapid operation results.

It will thus be seen that I have provided an improved method and machine by means of which tubular fabrics such as umbrella cases may be quickly and securely attached to ferrules, and it is thought that the many advantages of my invention will be readily appreciated by those skilled in the art.

What I claim is 1. The method of attaching a fabric to a ferrule having an exterior annular groove spaced from its ends and shoulders at the margins of the groove, which comprises ar ranging a closed ring around theattaching portion of the fabric, passing the ferrule into the portion of the fabric inclosed by the shoulders, aroundthe attaching portion of the fabric, passing the ferrule into the portion of the fabric inclosed by the ring until a the smaller shoulder has passed through thering and the latterlies substantially in the plane of the groove, and then expanding the smaller shoulder and collapsing the walls of the groove by axial compression of the ferrule.

In testimony whereof I affix my signature in presence of two witnesses. a

' WILLIAM G. OBRIEN.

Witnesses:

FRANK O. NELSON, HARRY O. MILLER.

the "Commissioner of Patents,

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