US1849020A - Clasp - Google Patents

Description

March 8, 1932. J QN 1,849,020 CLASP Filed Sept. 18. 1931 '2. Sheets-Sheet l I IN V EN TOR.

BY flmw WM,

ATTORNEYS.

March 8, 1932. 'J F ALLISON 7 1,849,020

. CLASP Fi led Sept. 18, 1951 2 Sheets-Sheet 2 A TTORNEYS.

Patented Mar. 8, 1932 UNITED STATES PATENT OFFICE JAMES F. ALLISON, OI PROVIDENCE, RHODE ISLAND, ASSIGNOR TO mamm- DAUG HADAY COMPANY, A. CORPORATION OF MASSACHUSETTS CLASP Application tiled September 18, 1981.. Serial No. 568,536.

This application relates to a clasp for gripping the opposite edges of a collar or for engaging a tie to hold the same in position on the shirt, or for like purposes, and

has for its object to provide a means which will vary the gripping pressure in response to movement of the material gripped by the means.

' Another'object of this invention is the pro-.

vision of a friction member which will rock to assist in initial movement of the fabric between a pair of jaws, and will move to a given position to either more tightly or more loosely grip the fabric, as desired.

A further object of this invention is the provision of jaws that may be moved to engage the fabric with ease but initially withdrawn with greater dificulty. 1

A still further object of this invention is the provision of a rockable member which will be limited in its movement to and from certain i in positions.

with t h e aid other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is a top plan view of a necktie clasp of my improved construction.

Fig. 2 is a bottom plan view thereof.

Fig. I 3 is a central section showing the friction member in .the position it assumes at the initial insertion of the fabric.

Fig. 4 is a similar view showing the position of the friction member upon completion of the insertion of the fabric.

Fig. 5 is a similar view showing the position of the friction after initial withdrawing of the fabric.

Fig. 6 ,is a similar view showing the further I withdrawal of the fabric and the position of the friction member.

Fig. 7- is a sectional view of a modified form of friction member.

Fig. 8 is a top plan'view of a collar holder- Fig. 9 is a sectional view of the construction shown in Figure 8.

Fig. 1Ov is a view similar to Figure 9 with the fabric inserted therein.

Fig. 11 is a section on line 11-11 of Figure 8. i The invention which I have herein illustrated is, in its broader sense, a clasp comprising a pair of jaws for gripping any material such as a fabric or the like inserted therebetween and may be applied equally well to either a collar or a tie clasp, and I have shown the invention as ap lied in these two forms, althou h other simi ar uses may be apparent from t e structure of the device. Y

I have found that it is desirable to provide a pair of gripping aws so arranged that the insertion of the fabric will be easier thanits withdrawal or one in which maximum gripping position may be assumed between two positlons of lesser gri ping tension, and in order to accomplish this result I have mounted a friction member which will exert a minimum pressure upon the fabricbetween the aws upon insertion, but will rock the member to cause a maximum or increased presv sure of the member on the fabric to more also permits of the member to' rock in a reverse direction upon initialinsertion of the fabric between the jaws to lessen the pressure and permit easy insertion of the collar or tie into the device; and the following is a detailed description of the present embodiment of this invention, illustrating the preferred means by which these advantageous results may'be accomplished; A

With reference to the drawings Fi res 1 to 7 inclusive disclosea tie clasp w ich is formed ofwire doubledupon itself to pro- .vide a rear jaw 10 and a front jaw 11. The rear 'aw is a frame with parallel portions 12 w ich are brought together at 13 and smooth surface 25 at one side the wires extend in'slightly tionship to form arms the loop portion 17 at The end portions 18 and 19 of the back jaw 10 turned inwardly and bent to provide an eye in which a friction member, designated enerally, 20 is pivotally mounted by means of the ends of these ortions 18 and 19 extending thereinto. A? band 21 secures the end portions 18 and 19 together and hold the cam 20 in place. The friction member 20 is provided with an eccentrically located pivot openin 22 and shaped as best shown in section in igures 3 to 5 inclusive to provide fabric engaging teeth '23 and 24, with a and a roughened surface 26 on the other side thereof.

The fabric 27 when first inserted, as illus trated in Figure 3, engages the space 28 between the teeth 23-and24 and rocks the memher about its pivot so that the roughened surface 26 will be in engagement with the fabric, thus the fabric during the latter part of its insertion will slide along the roughened surface 26. Upon initial withdrawing of the fabric from inserted position, the friction member will be rocked about its pivot-to the position illustrated in Figure 5, so that the teeth 23 and 24 will engage the fabric 27 and spring the jaw 11 the maximum distance from the aw 10 at which position the cam or gripping member will have its maximum pressure applied to the fabric. Upon further withdrawal the friction member may be rocked to the position illustratedin Figure'6 with the smooth surface 25 in engagement with the fabric to apply less pressure on the fabric and permit easy withdrawall Stops are suitably provided on the friction. member by means of abutments 29 and 30, as shown in Figure ,6, to engage the pivotal mountings 18 and 19 and limit the movement of the friction member in its rocking so as to determine the ositions it will assume with relation to the abric. Thus it will be observed that upon insertion of the fabric the member will first be rocked about its pivot through its position of maximum pressure to the position of minimum pressure illustrated in Figure 4, along which the fabric will slide upon insertion, then upon withdrawal of the fabric slightly the position of maximum pressure will be obtamed and then upon further withdrawal the friction member will be tipped to the opposite side to a osition of lesser pressure to permit the fa ric to be moved alon the smooth surface 25 in withdrawing it rom the clasp.

It is known that the width of a'fore-inhand tie is such that when its edge aligns with the edge of the shirt, the tie is to one side of the center of the shirt, and it is therethese jaws.'

fore desirable in positioning a tie clip to leave a sufficient distance between 14 of the clasp and the edge of the shirt to permitthetie to be moved into this portion to center the tie on the shirt, and by the provision'of this construction I may align the edge of the tie with the edge of the shirt and the bight or fold push the tie clasp into its extreme position then withdraw the same slightly to the position illustrated in Figure 5 in which maximum gripping occurs, and then slide the tie outwardly until itengages the bight 14. The

friction member'being in engagementwith the shirt isnot moved by slidin the tie along the shirt and front jaw and t us the tie is centered and the friction member is located in its maximurngripping position from which it may be manually released.

In some instances it is a member 30, as shown in Figure 7, with its surface notched to provide abutments 31 and 32 between which a finger 33 may be positioned to engage either of these abutments to desirable to provide limit'the movement of thecam as desired. By

suitably positioning these stops, I may cause the cam to function to apply the desired maximum andminimum pressures at the different relative positions of the clasp and the fabric as is desired. 4

In Figures 8 to 11 inclusive, I have disclosed the adoption of this member on a collar holder, which consists of a front bar 35 and a rear bar 36 which are clamped together by a band 37 to prov'gde oppositely disposed pairs of jaws 38 and 9..- In the back jaw 39, I have mounted a friction member 40 which may be folded about a cross bar 41 formed by cut-out portions 42 in the jaw 39. Upon insertion of the fabric 43 the member 40 will be rocked to the minimum gripping position as illustrated in Figure 10 and therestop by engagement ofits portion 44,'with the jaw 39 at the edge of the opening 42, and upon withdrawal-of the fabric 43 the member 40 will be rocked to cause its portion 45 to engage the opposite edge 46 of the slot 42 and limit the movement of the member so that the maximum pressure is applied to the fabric tending to resist withdrawal from between In this case, the member being positioned in side of the slot to limit its movement and thus provide the desired functioning of the device without the formation of particular stops as described in connection with Figures 1 to 7 inclusive. The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical a slot may be engaged by either Alf) changes to which the device is susceptible. thy

a pair of jaws, and means mounted in one of said jaws to engage the fabric positioned between said jaws, said means being so constructed and positioned as to be moved by the relative movement of the fabric between said jaws in one direction to exert a greater pressure on the fabric than before movement and stop means to maintainsaid greater pressure on the fabric although permittin frictional sliding of the fabric therealong uring a continued movement of the fabric in said direction. V

2. In a clasp for gripping a piece of fabric, a pair of jaws, and means mounted in one of sand jaws-to engage the fabric position between said jaws, said means being so constructedand positioned as to be moved by the withdrawing movement of the fabric to ex ert a greater pressure on the fabric than before movement, and stop means to maintain said greater fpressure on the fabric although exert a greater pressure on the fabric, and.

permitting ictionalflsliding movement of the fabric therealong during continued withdrawing movement of'the fabric.

3. In a clasp'for gripping a piece of fabric,

- a pair of jaws, and means mounted in one of said jaws to engage the fabric ositioned between said jaws, said means being so constructed and positioned as to be moved by the withdrawlng movement of the fabric to moved to exert a lesser ressure on the-fabric by an insertion of the abric into said jaws, and stop means to selectively maintain greater or lesser pressure on the fabric although permitting frictional sliding of the fabric therealong during a continued movement of the fabric in a single direction. 7 1

4 In a clasp for ipping a piece of fabric a pair of resilient gaws, and'means pivotally mounted in one o opposite jaw or. fabric positioned etween said jaws, said means being so constructed and positioned as to be moved my movement of the fabric in one direction to exert a greater pressure on the fabric, and be moved by opposite movement of the fabric to exert a lesser pressure on the fabric,-and stop means to selectively maintain greater or lesser pressure on the fabric although permitting frictional sliding of the fabric therealon dur-.

ing a continued movement of the fabr c in a single direction. I

5. In a clasp for gripping a piece of fabric,

- a pair of jaws, and a friction member pivotally mountedin one jaw with its engaging surface at different distances from its pivotal mounting, and means for limiting the movement of said member about said pivot and said member being so constructed and arranged as to provide that at one limit the point of said member furtherest from said pivot is nearest the opposite jaw.

6. In a clasp for gripping'a piece of fabric, a pair of jaws, and a friction member pivoted said jaws to en age the stop the member in a gripping position.

in one jaw eccentrically with its engaging surface at different distances from its pivot, and means for limiting the pivotal movement 'of said member in said jaw to a swing of substantially ninety degrees, said member being so constructed and arranged that it will move from one stop to the other upon insertion orremoval of a piece of fabric between said jaws.

' 7. In a clasp for grippin a piece of fabric,

a pair of jaws, and a mem er pivoted eccen trically with respect to its engaging surface in one of said jaws, and means for limiting the pivotal movement of said member in said jaw to present either a maximum or minimum 'gripplng position, said means being so con- 'ofsaidjaws, and means for limiting the pivotal movement of said member .in said jaw, said means belng so constructed and pos1- tioned as to permit movement from maximum to minimum gripping position upon insertion of the fabric between said jaws and to permit reverse movement from minimum to maximum gripping position upon initial retraction of the fabric from-between said jaws, followedby return to minimum gripping position.

9. In a clasp for gri a pair of jaws, one 0 said aws being resilient, a member pivotally mounted in one of said jaws off center with respect to its en gaging surface and in engagement with the other aw to turn .when fabricis moved between said jaws, and stop means to limit the movement of the member so arranged as to position of maximum ping a piece of fabric,

10. In a clasp for gripping a piece of fabiic,

a pair of jaws, a member pivotally mounted in one of said jaws and in engagement with the otherjaw to turn when fabric is moved be tween said jaws, said member having abutment shoulders, and means to engage said shoulders and limit the movement of said member in both directions.

11. In a clasp for gripping a piece of fabric, a pair of, jaws,'a member pivotally mounted in one of said jaws and in engagement with the other jaw to turn when fabric is moved between said jaws, a part of oneof said jaws providing apivot extending beyond the ends of said member and portions on said member to engage the pivot and limit the movement of the cam about the pivot.

12. In a clasp for grippinga piece of fabric, a pair of jaws, a cam pivotally mounted in one of said jaws and in en agement with the other jaw to turn when fa no is inserted between said jaws, said cam havin a notch to provide abutment shoulders, an a finger extending into said notch to engage said shoulders and limit the movement of said cam.

13. means pivotallymounted in one of said jaws to -resiliently engage the other jaw, said means being so constructed and positioned as to move upon initial withdrawal of the material betweensaldjaws to increase the pressure upon thematerial and means to limit the movement of said means in said direction to maintain the increased pressure applied.

14. In a collar holder oppositely disposed pairs of jaws and means pivotally mounted in one of the jaws of each pair to resiliently engage the other jaw, said means being so constructed and positioned as to move upon movement of the collar between said jaws in one direction to increase the pressure upon said collar andmeans to limit the movement of said means in said direction to maintain the increased pressure applied.

15. In a tie clasp, a pair of wire jaws, and means pivotally mounted in one of said jaws to resiliently engage the other jaw, said means being so constructed and pos1tioned as to move upon movement of the material between said jaws in one direction to increase the pressure upon the material, and means to limit the movement of said means in said direction to maintain the increased pressure applied, said first named means being moved to lessen the pressure upon said material upon opposite movement o1 the material.

In testimony whereof I aiiix my signature.

JAS 1B. ALLllSON.

In a tie clasp, a pair of wire jaws, and

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