US766199A - Seal. - Google Patents

Description

PATENTED AUG. 2, 1904.

A.IB. SOHOFIELD.

SEAL, APPLICATION FILED MAR. 23' 1900.

N0 MODEL.

fic ineawasi NrrED STATES Patented August 2, 1904.

PATENT FFICE.

ALBERT B. SCHOFIELD, OF BROOKLYN, NElV YORK, ASSIGNOR, BY MESNE .ASSIGNB'IENTS, TO KEYSTONE SFAL AND PRESS COMPANY, A CORPO- RATION OF NElV JERSEY.

SEAL.

SPECIFICATION forming part of Letters Patent No. 766,199, dated August 2, 1904.

Application filed March 28, 1900. Serial No. 10,484. (No model.)

To all whmn it may concern:

Be it known that I, ALBERT B. Sonorrnm), a citizen of the United States, and a resident of the borough of Brooklyn, in the city and State of New York, have invented a new and useful Seal, of which the following is aspecitication.

My invention relates to seals, and more particularl y to what are known in the art as lead seals, in which a wire bail has its ends embedded in a disk of soft metal.

The object of my present invention is to provide a seal of this character in which the embedded ends of the wire of hooked form shall lie in the same plane through the middle portion of the disk, thereby preventing the crossing of the wires within the soft-metal disk and the consequent cutting of the soft metal through toward the face of the disk or the distortion of the impression on the face of the disk.

A further object is to provide a slot for the reception of the free end of the bail, which may be made as broad at its outer end as at any point throughout its length and narrower than the normal width of the hooked end of the wire, thereby doing away with the necessity of casting the disk with a slot or socket having internal shoulders.

A practical embodiment of my invention is represented in the accompanying drawings, in which Figure 1 is an enlarged view of the disk, in central section through its edges, showing the position of the parts before the free end of the bail is inserted into the slot. Fig. 2 is a similar view showing the free end of the bail inserted in the slot. Fig. 3 is a transverse section through the seal on the line 3 3 of Fig. 2, and Fig. l is a horizontal section through the seal on the line at at of Fig. 2.

The hooked ends of the bail when in position to receive the press rest in the same plane along the middle portion of the disk, as clearly shown in 3 and 4, so that when the disk is placed under the action of the press the walls of the disk on the opposite sides of the plane in which the hooked ends of the bail rest may be thinned to a much greater extent and yet leave a sutlieient covering of lead on the opposite sides of the embedded wire than where the said embedded elnds of the wire cross one another within the c isk.

The disk is denoted by A, and the slot for the reception of the free end of the bail by a. The width of the slot (1 is less throughout its entire length than the maximum width of the hooked end of the bail B, so that when the hooked end is inserted into the slot into the position shown in Fig. 2. it will compress the hook I), and it will be locked in its position by the pressure of its free end against the wall of theslot (1, which will tend to embed itself in the wall, as at (1, Fig. 2, when strain is brought to bear tending to withdraw it from the slot.

In speaking of the slot (1 as of less width than the maximum width of the hook b at all points throughout its length I refer to that part of its length along which the free end of the hook travels during the movement of the bight of the hook toward the bottom of the slot and use this term to distinguish it from a slot which is shouldered at a point inwardly from its mouth, thereby widening it out to permit the hook to spring open and catch against an internal shoulder.

I have found it unnecessary in general practice to shoulder the slot, as the tendency of the hook I) to expand is sui'licient to cause its free end to embed itself more or less in the soft-metal wall of the slot and form its own shoulder to hold it temporarily in position while the press is being applied.

The hook I) at the opposite end of the wire is cast in the metal disk, and both branches lie in the plane of the slot (1, preferably one branch upon one side of the slot and the other branch upon the opposite side of the slot and the bottom of the hook below the bottom of the slot. This arrangement brings the four parts of the two hooks I; into the same plane edgewise of the disk when the hook I) is inserted, as shown in Fig. 3, so that when the disk is pressed to permanently lock the ends of the bail therein it will press the opposite sides equally without disturbing the impression, and a sufficient thickness of wall may be left upon opposite sides of the several hooks even though a less quantity of soft metal be employed in the disk than where any two or more parts of the two hooks embedded in the disk are permitted to cross one another.

The particular structure of disk preferred is that in which the periphery is wedge-shaped,

v coming to an edge at the middle and provided Wish to limit myself strictly to the structure herein set forth; but

NVhat I claim is- A seal comprising a Wire bail and a softmetal disk, the said disk being provided with a slot havingits Walls uninterrupted by a shoulder or shoulders, and the. bail having its ends hook-shaped, one embedded permanently in the disk with the parts of the hook on opposite sides of the said slot and the other having the parts of the hook normally spread open wider than the width of the slot and adapted to be forced into the slot, the several parts of the hooked ends resting When in locked position in the same plane centrally of the disk, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two Witnesses, this 27th day of -March, 1900.

ALBERT B. SCHOFIELD.

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