US522137A - Cearles clement walker - Google Patents

Description

. (No Model.)

G. G. WALKER. LID FOR GAS RE'TORTS.

No. 522,137. Patented June 26, 1894.

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CHARLES CLEMENT WALKER, OF DONNINGTON, NEAR NEWPORT, ENGLAND.

LlD FOR GAS-RETORT-S.

SPECIFICATION forming part of Letters Patent No. 522,137, dated June 26, 1894.

Application filed February 20, 1894-- Serial No. 500,906- (No model.)

To aZZ whom it may concern.-

Be it known that I, CHARLES CLEMENT the Lids of Gas-Retorts or the Like, of which the following is a specification.

My invention relates to the lids of retorts to which lids a sliding movement is imparted with the object of causing the lid to rub on the rim of the mouthpiece when it is closed and opened. Means for this purpose are described in the specification of United States Letters Patent No. 331,102, dated November 24, 1885, and it is the object of my invention to provide means whereby a more efficient rubbing action of the lid upon the rim of the mouthpiece is insured. To effect this I make the eccentric boss which is upon the screw and which engages in the corresponding recess in the lid of less depth or thickness than hitherto or than the depth of the recess and I place a flexible device such as a coiled or bow spring or springs between the lid and the cross bar which device keeps the lid in contact with the rim of the mouthpiece during the final portion of the operation of the screw in closing the mouthpiece and also during the first portion of the operation of the screw in opening the mouthpiece and as during such times the eccentric boss gives an cecentric movement to the lid a very efficient rubbing of the lid on the rim of the mouthpiece is insured as the lid is by the flexible device or spring or springs caused at such portions of the operation of the screw to keep in contact with the said rim.

The accompanying drawings show means whereby my invention may be carried into eifect.

Figure 1 is a plan and Fig. 2 is a section of a retort mouthpiece and lid provided with my invention and Fig. 3 is a sectional view of part thereof drawn to a larger scale. Fig. 4 is a plan showing a diiferent kind of spring.

A is the retort mouthpiece. Y B is the lid.

0 is the cross bar and D is the screw passing through the said bar for pressing the lid onto the mouthpiece. Upon this screw is the eccentric boss 01 which engages in the recess b in the lid. The said boss dis of less thickness or depth than the depth ofthe recess b.

E is a coiled spring placed between the lid B and the cross bar (J.

F is a plate or box which takes the bearing of one end of the spring the said plate or box having an opening in it of sufficient size to allow of the working of the screw D.

In Fig. 4 I have shown a bow or fiat spring E as taking the place of the coiled spring E the other parts being like and lettered similarly to those shown in Figs. 1, 2 and 3. The spring E keeps the lid in contact with the rim of the mouthpiece during the final portion of the operation of the screw in closing the mouthpiece and also during the first portion of the operation of the screw in opening the mouthpiece so that the action of the eccentric combined with that of the spring gives a very efficient rubbing action as afore said.

I claim- The combination with the retort mouthpiece and lid and cross bar and screw of an eccentric on the screw engaging in a recess in the lid the said recess being of greater depth than the thickness of the eccentric and of a yielding device between the lid and the cross bar substantially as and for the purpose hereinbefore described and illustrated by the accompanying drawings.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES CLEMENT WALKER.

Witnesses:

WM. CHAFFER, 10 Ft'nsbury' Sqa, London, E. 0.

L. A. RUMBLE, 1 13 Beading Road, Bm'wton Hill, S. W.

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