US1025081A - Seal. - Google Patents

Description

D. D. DAVIS.

SEAL.

APPLIOATION FILED JUNE 24, 1911.

1 ,O25,081 PatentedApr. 30, 1912.

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ATTORNEYS UNITED STATES PATENT-OFFICE.

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Specification r Letters Patent.

Patented Apr. 30, 1912.

. Application tiled ju ne 24, 1911. 8erial lo. 685,097.

To cll whom it niay concern: a Be it known that I, Don. D. DAVIS, a citizen of the United States, residing at Saginaw, Saginaw county, Michigan, have 1n,

- character,

vented new and useful Improvements in dling.

the strap.

A further object is to p'rovide .a seal,- the strap of which cannot be cut and the severed and readily reinserted in the lock Still another object is to render it difii cult, if not impossible, to unfasten the seal after it has been locked, without severing A still further object is the provision of an efficient seal which is more readily applied and locked.

.' Other objects and advantages will be more fully set forth hereinafter and particu-' larly pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view, showing one embodi-' ment of the invention, the locking mechanism being disassembled. Fig. 2 is a section showing the latch, about to be tripped by the free end of the strap. Fig. 3 shows the latch tripped, the seal being locked. Fig. 4 is a sectional view taken at right angles to Fig. 3. Fig. 5 is a detail pers ective of the mount o'r carrier, with the late in readiness to operate. Fig. 6 is a detail showing one means for-holdin the mount in place in the casing. Fig. 7 is a perspective of a mount of a slightly modified form. Fig. 8 is a cross-section therethrough, and Fig. 9 is a sectional view, similar to Fig. 2 showing the strap arranged to enter the casing at the opposite end from that shown in Fig. 2.

The seal illustrated comprises a strap 1 having a locking aperture 2 at or near one end, which end is entered and locked in a housing or casing at the opposite end of the strap. Said housing, in the present instance, comprises a pair of pockets 3 and 4, ti. open ends of which are registered to form a chamber within which to conceal the locking mechanism said. mechanism being this protected against injury. Thepocket 3 may be 'formedvat one end of the strap, said pocket being laterally flanged, as at 6, 6 to form seats on which the edges 7 projecting fro]; the base 80f. pocket 4, rest. The outere ges '0f the flanges 6 'may be bent,

crimped-or folded over said edges 7 to secure the pockets together and prevent the introduction of seal-picking tools. A flange =9 closes the space between the ockets at one -end, to prevent access to the ocking chamber,- the opposite end of the chamber being left open-to admit the free end of the strap 1. Within said chamber is a mount or carrier held stationary in a seat formed between the base 8 and the flanges 6 of the respective pockets, said -mount comprising a pair of preferably, along one side as at 12, to form -a throat. The outer ends of the guides prognides 10 and 11 folded together,

ject through the, open end of the casing or a chamber to form guide lips 1 at least one of whichmay diverge from t e other, as at 14, to facilitate the insertion of the free endof the strap there between. .A. lug 15 on said. mount lies in a recess 16 formed, preferably, in one of the edges 7 of the pocket 4 to secure the mount against shifting in the casing, and prevent its withdrawal there-' from. To these ends both the lug and its recess lie transversely to' the path of travel of the free end of the strap', when the latter is inserted in the housing.

A spring latch 18 isloosely held between the walls of .a' guide slot 17 extending longitudinally of the mount. In the present instance, said latch comprises a resilient coil lying1 in .the registering whip pass across each other and project away from the coil said ends lying opposite each other and being substantially U-shaped, the concave portions of which open toward each other, and terminating in catch fingers 19 normally pressing toward each other against the outer faces of the respective guides 10 and 11. The free end of the strap, when inserted between the guides, passes between the V-shaped ends of the latch and strikes the coil to force the entire latch backwardly along the guide slot until finally th catch fingers slip off the guides into the slot, at which time the locking aplerture 2 has been brought-into registry wit and of the slots, the ends of the forward slot, whereupon the fingers snap through the aperture from opposite directions and overlap, to lock the free end of the strap against withdrawal from the housing. The latch approximates a figure 8 in shape. Attempted withdrawal will operate tobring the fingers against the end walls of the registering slots 17 in the guides to prevent the release of the strap. The latch is held in readiness to operate and prevented from lateral displacement (other than by the of an article into the housing) b longitudina y along one or both sides of the slots in the guidm, which walls restrain the latch to a path longitudinall of the slot, Said walls extend in op osite 'rect-ions into the respective pockets. y this construction, the latch, when once adjusted for operation, remains in position until dis laced by the insertion of the strap into the housing, even though the seals may be roughly handled,

and said'walls also prevent access of a pick or other tool to the latch. By mounting the cylindrical coils or body of the latch in the s ots 17 two separate points of contact are provided which tend to prevent latch displacement of the latch. To prevent the strap from being out and the severed end inserted in the casing, the free end of said strap has a lug, tooth or stop 21 thereon, which would ave to be removed. The pocket 4 maybe applied to pocketv 3 in such a manner that the, entrance to the casing is at the extreme end of the seal, or at the stra end of the housing (see Fig. 9). In t e.former case, the strap may be entered in the housing from either side (in the drawing in dotted lines in Fig. 2), nor is-it necessary to rotate or turn the seal to bring the strap and opening into line. With the opening at the strap end of the housing, the.

free end of the strap can only be inserted when bent in one direction.

In Figs. 7 and 8, a sli ht modification of the carrier or mount is 's own, the fold conmeeting the two ides 10, 11, beingat the rear or inner en instead ofalong one side, as in Fig. 4. In this form, the fastening lug 15, is at the rear end of the guide member, instead oflat the side.

What I claim as new, is

1. In a car seal, the combination wi h. a,

flexible strap having an aperture near one end, and ahousing or casin secured to the opposite end, and into whic the apertured end of the strap is inserted, of a mount stationary the casing, comprising a substantially -U-shaped or folded member formed with a longitudinally-extending confining walls 20 extending latch supported by the mount and ing, and

slot in the upper and lower leaves thereof,

a latch having catch fingers suv ported on the mount, the body-portion of e latch l at the forward end of the slot in the pa 0 the inserted end of the flexible strap to be contacted thereby, and shifted al the slot until the catch fingers pass ofi of t mount.- and snap into the locking aperture, and projecting e unt. to prevent accidental dislocation of the latch confining walls on the mount above the plane of the slot and of t by guiding the body-portion thereof preventing lateral movement.

2. In a seal, the combination with a ble strap having a locking opening near itsfree end, of a flanged housin at its opposite end provided with a sing e entrance, 1! carrier stationary within the housing and formed independently of the strap, a latch on the carrier in'position to be struck and tripped by the free end of the strap when inserted in the housing to lock the strap in the housing, and a transversely prog'ect' lug on said carrier seated in a recess onn in the housing and extending at an angle to the path of travel of the strap when inserted in the housing, to hold said carrier stationary.

3. A car seal comprising a flexible strap having a locking opening near one end and a housing at its 0 posite end, a mount within the housing, an latch comprising a substantially annular resilient coil, the ends of the coil crossing and projecting away from the coil and from each other, and finally curving toward each.

other to form opposing catch fingerswhich tend to enter' the'locking opening and overlap to hold the free end of the strap, the latch approximating a figure 8 in shape.

4. In a seal,'the combination with a strap having a-housing at one end, and a locking a latch on the mount, said opening near its opposite end, said last--,

named end adapted for insertion within the housing, of a stationary mount or carrier within the housing and having a slot, a

l m the slot in position to be tripped by 32in end of the strap to lock the strap in the ho sguides on the mount other than the edges of the slot, to hold the'latch against accidental displacement.

In testimony whereof, I have my name hereto, in the presence of witnesses.

DON D. DAVIS.

Witnesses:

FREDERICK J. KELLEY, JOSEPH TROY.

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