US 20499 A
Description (OCR text may contain errors)
UNITED STATES PATENT OFFICE.
W. W. LYMAN, OF WEST MERIDEN, CONNECTICUT.
Specification of Letters Patent No. 20,499, dated June 8, 1858.
To all whom it may concern:
Be it known that I, \V. W. LYMAN, of West Meriden, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Valves by which the Nozzles of Ice or Refrigerating Pitchers are Effectually Closed; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which Figure 1, is a vertical section of a pitcher with my improvement applied to it. Fig. 2, is a detached perspective view of ditto.
Similar letters of reference indicate corresponding parts in the two figures.
This invention consists in having the valve formed with double sides, or, in other words, having it made hollow and of a thickness or width corresponding to that of the pitcher to which it is attached, said valve being fitted in the pitcher at the throat of the nozzle, and so arranged as to open and close by its own gravity as the pitcher is tilted and replaced in an upright position and form, when closed a tight joint.
To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.
A, represents a pitcher formed with double sides a, a, having a clear air space 6, between. B, is the lid of the pitcher also constructed double to form a chamber within. The lid is hinged to the pitcher as usual. C, is the handle of the pitcher and D, is the nozzle. The above parts are all of usual construction and therefore do not require a minute description.
E, is a valve which is formed of two sides 0, 0, connected by an end piece cl, which extends all around the valve and forms its edge. The valve is equal in thickness to the pitcher at the point where it is placed, and the upper end of the valve is hinged to the pitcher as shown at c. This valve is fitted in the pitcher at the throat of the nozzle D, as shown clearly in Fig. 1. The front side plate 6, of the valve projects a trifle beyond the end piece cl, so as to form a lip or shoulder f, and a lip or shoulder g, is formed on the pitcher all around the valve seat so that when the valve is closed the lip or shoulder f, laps over the edge of the orifice in which the valve is fitted, the inner side 0, of the valve when it is closed bears against the lip or shoulder g. The valve when closed therefore forms a tight or close joint, an important feature in an ice or refrigerating pitcher, for considerable external air is admitted into the pitcher through the nozzle when it is not perfectly stopped.
The pitcher A, is of conical form and consequently the valve will, when the pitcher is in an upright position remain closed by its own gravity, the valve opening by the same cause when the pitcher is tilted.
In consequence of having the valve formed with double sides it not only effectually stops the nozzle when closed and serves in common with the other double portions of the pitcher as a nonconductor, but it also possesses sufficient weight to operate quickly, no additional weight therefore is required as would be the case were a single plate or thin valve used.
Having thus described my invention, I would state that, I make no claim to a valve in the end of the nozzle, or on the lid of a pitcher, as valves have heretofore been placed therenor do I claim a single valve located anywhere but \Vhat I claim as new and desire to secure by Letters Patent, is,
In the manufacture of ice pitchers the particular location of the valve viz: in the throat of the nozzle, when said valve shuts into instead of against the opening and is constructed with double sides, or, made hollow, provided with a projecting lip or shoulder f, and having its seat provided with a lip or shoulder g, substantially asshown and described.
W. V. LYMAN.
\Vitnesses NELSON MERRIAM, HIRAM Fos'rnn.