US783994A - Closure-fastening device. - Google Patents

Description

PATENTED FEB. 28, 1905.

' F. GANFIELD.

CLOSURE FASTENING DEVICE.

APPLICATION FILED MAY 31, 1904.

Nah: 783,994.

Patented February 28, 190%.

PATENT are.

FRANK UANFl ELD, OF DENVER, COLORADO, ASSI GNOh, BY DIRECT AND MESNE ASSIGNMENTS, TO JOHN ALEXANDER MA(,-l)()NALl) AND l-IOWV- ARI) (I. BONSALL, OF DENVER, COLORADO.

mesons-FASTENING neuron.

SPECIFICATION forming part of Letters Patent No. 783,994, dated. February 28, 1905.

Application filed May 31.1904. Serial No. 210,593.

To It /1/0717, (it In/(L71 concern:

Be it known that I, FRANK OANFIELD, a citizen of the United States, residing in the city and county of Denver and State of Colorado,

5 have invented certain new and useful 1m provements in Olosure-Fastening Devices; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap- Io pertains to make and use the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in a I 5 fastening device for the closures of receptacles, as jars or other receptacles adapted to contain substances which it is desired to seal from contact with the atmosphere. It is also necessary that these receptacles should be both air and liquid tight.

My object is to provide a device of this class which shall be simplein construction, economical in cost, reliable, durable, and efiicient in use; and to these ends the invention consists 2 5 of the features hereinafter described and claimed, all of which will be fully understood by reference to the accompanying drawings, in which is illustrated an embodiment thereof.

In the drawings, Figure 1 is a sideelevation 3 of a jar the cap of which is held in place by my improved fastening device, the latter be ing in the locked position. Fig. .2 is a section of the jar, the cam-lever being shown in lon gitiiidinal section and in the unlocked position.

- Fig. 3 is a top or plan view of the device shown in Fig. 1 and with the parts in the same position. Fig. L is a top view of the'device, showing the cam-lever in the unlocked position. Fig. 5 is a section taken on the line 4 5 5. Fig. 1, viewed in the direction of the arrow. The same reference characters indicate the same parts in all the views.

Let A designate a jar or other suitable receptacle, to which is applied a cap A, resting on a packing-washer A. As shown in the drawings, the cap A is provided with a specially-prepared wearing-plate A the said plate being provided with a depending threaded shank A", passing through an openingin the top of the cap and protruding into the hollow 5 of the cap. This protruding extremity is threaded, and to it is applied a nut A" for holding the plate in place. Surrounding the threaded shank and engaging the inner surface of the cap is a rubber washer A", and between this rubber washer and the nut is a metal washer A.

In the opposite sides of the wall of the receptacie A are formed recesses A, into which are bent the extremities 13' of a fastcmingbail B, formed from asingle piece of wire and extending above the cap. in the center of this wire bail is formed an eye B, through which is passed a pin B, upon which a cam-lever O is fulcrumed. This lever is cut away, as 5 shown at O, to make room for the bail when the lever is thrown to the unlocked position. as shown in Fig. 2. The arm of the camlever is provided with a central slot (l Projecting from the arm on opposite sides of this 7 slot are two curved lips O". The central portions of those lips approach each other, and they bend outwardly in both directions. 'llhey are sufficiently close together that when the cam-lever is forced downwardly upon the bail the latter spreads the lips apart until the bail is passed between them, after which the lips close below the bail and lock the lever securely in place. The lips are practically rigid; but the split or slot (l of the lever al 30 lows the two parts of the lever sullicient s 'iring or yielding capacity to permit the lips to open and close in the pm'forimmce of their function. As shown in the drawings, the slot O extends from the free extremity of the le- 5 ver inwardly toward its cam estremity a suitable distance to permit the performance of the aforesaid function.

From the foregoing description the use and operation of my improved device will be read- 9 ily understood. Assuming that the parts are assembled and that the cam-lever is in the unlocked position, or that shown in Figs. 2 and l of the drawings, it is only necessary to throw the cam-lever downwardly to the posi tion shown in Figs. 1 and 3, when the cam of the lever acts on the wearing-plate to force of the slot, the said lips being adapted to the cap down tightly-forming an air-tight and water-proof joint between the cam and the body of the jar or receptacle. At the same time the lips (1 come in contact with the bail, and spread apart by virtue of the split in the arm of the lever sufliciently to permit the bail to i enter, after which the lips close beneath the bail and hold the lever in the locked position and perfectly secure against accidental displacement.

Having thus described my invention, what 1 claim is 1. In a device of the class described, the combination with a receptacle and a cap therefor, of a bail pivotally connected with the wall of the receptacle, a cam-lever fulcrumed on the bail and whose cam portion is adapted to engage the top of the cap to hold the latter securely in place when the lever is thrown to the locking position, the lever having a pair of yielding lips adapted to pass on opposite sides of the bail and lock the lever in the closed position, substantially as described.

2. The combination with a receptacle and a cap therefor, of a bail connected With the receptacle and adapted to pass upwardly over the cap, a cam-lever fulcrumed on the bail and having its-arm slotted and provided with lips projecting from the arm on opposite sides straddle the bail and lock the lever in the closed position, substantially as described.

3. The combination with a suitable jar or other receptacle, and a cap therefor, of a bail connected with the body of the receptacle and adapted to extend upwardly over the cap, a cam-lever fulcrumed on the bail, the arm of the lever being split from its free extremity inwardly a suitable distance, and curved lips projecting from the lever on opposite sides of the slot, the two lips being adapted to engage the bail and hold the lever in the locked position as set forth.

4. The combination with a receptacle, of a cap, a wearing-plate applied to the top of the cap and having a threaded shank extending therethrough and protruding from the interior thereof, fastening means applied to the shank on the inside to hold the wearing-plate in po sition, a bail extending over the top of the cap, and a cam-lever fulcrumed on the bail and adapted to engage the wearing-plate, substantially as described.

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

, FRANK GANFIELD.

Vitnesses:

DENA NELSON, A. J. OBRIEN.

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