An Improvement in Vulcanizing Apparatus.
Year: 1896

page_text: Date of Application, 22nd Sept., 1896--Accepte 1, 28th Nov., 1896
COMPLETE SPECIFICATION.
An Improvement in Vulcanizing Apparatus.
I, PHILANDER JAMES DAVIS, of the City of Rochester, County of Monroe
and State of New York, United States of America, Manufacturer, do hereby
declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
The object of my invention is to produce a vulcanizing apparatus in which the
fastening devices for the cover of the retort are easily managed, easily adjustable
to provide for compression of the packing and to take up wear, and are all fastened
together so that there are no parts to mislay or lose. I accomplish these objects by
the devices hereinafter described and claimed.
Fig. 1 is a front elevation of my device;
Fig. 2 is an end elevation seen from the left hand side of Fig. 1;
Fig. 3 is an end elevation seen from the right hand side of Fig. 1; and,
Fig. 4 is a front elevation of my device with the cover removed.
A is the retort, whose edge only is directly visible, but which is shown mainly in
dotted lines in the respective views. A' is the support for the retort and the cover
operating devices, within which is placed the source of heat for producing the
vulcanization within the retort. Upon the support A¹ rests a ring B provided on
opposite sides with the lugs B and b. To the lugs B is pivoted, at B2, the
clamping lever D. Into the lug B, is screwed or driven a pin B3 against which
the lever D rests when the cover is fully removed from the retort, as shown in
Fig. 4. The clamping lever D extends upward from the lug B', thence over
the retort A to a point over the lug b. At about the middle of the lever D
and at a point immediately over the middle of the cover E, there is a depending
lug D'. The cover E is perforated for a stem F to which is fastened a steam
gauge, a safety valve and a blow off cock f2, shown in Fig. 1, but omitted in
the other figures. From the cover also extends lugs e by which the cover is
pivoted at e to the lug D1 of the lever D. To the free end of the lever D are
pivoted, at d', a pair of links d, to the lower ends of which is pivoted a handle d2
by means of the bolt da. Between the links d is the cam or eccentric d' which
is fastened firmly on the pivot d³ which is operated by means of the handle d²,
also fastened by means of a yoke end to the pivot ds outside of the links d,
(see Fig. 3). The links are set so far apart that the lug b may pass between
them, and the cam is so adjusted on the ends of the links that when the handle is
depressed, as shown in Figs. 1 and 3, the lever d will be drawn tightly down and
the cover E will be pressed tightly upon the retort A.
Any suitable packing may be used to make the vulcanizer tight. If the packing
becomes compressed in use, or the cam becomes worn, it is necessary to provide
means for adjusting the degree to which the cover may be pulled down upon
the retort. Into the under side of the lug b, (see Fig. 4), is screwed a plug bl.
The screw passes entirely through the lug and above the upper side thereof and
is there provided with a slot for a screw driver or other means of turning it.
On turning the screw, the enlarged lower end of the plug b' may be moved
upward or downward and, as the cam , when brought into the proper position,
always presses against the lower end of the plug b, the degree of movement or
pressure of the lever D, and hence of the cover E, upon the retort A, is easily and
properly adjusted.

page_text: On the upper ends of the links d are a pair of projections d', (see Figs. 1
and 4), and in the end of the lever D are a pair of pins against which the
projections d may rest. If the parts are in position shown in Fig. 1, on raising
the handle d', the cam is turned and thereby the links d are released from the
lug b. Still lifting the handle, the links are pulled around the pivotal point d'
so that the projections strike against the pins de and, on further raising the
handle, the cover E is lifted from the retort A and the whole device may be
swung about the pivot B2 until the pin B3 checks the movement of the lever D
and all the parts may rest in the position shown in Fig. 4 with the retort wide
open.
It will be seen that one hand only is required for opening the retort, and
that there are no nuts, bolts or other parts to unfasten and lay aside, nor does
the cover require separate handling from the devices for fastening it upon the
retort.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performned, I declare that what I
claim is,
1. The combination of a retort; a frame around the same having a pair of lugs
on opposite sides thereof; a cover; a clamping lever pivoted to one of said lugs
and extending over said cover and having said cover pivoted thereto; a cam or
eccentric adapted to engage the under side of the other lug and provided with an
operating handle; and a swinging connection permanently attached to said can
and to the free end of said clamping lever, whereby the cover is locked and
unlocked and is lifted and replaced by operating the handle only.
2. In a vulcanizing apparatus, a retort A; a cover E; a support for the retort
provided with a ring B on which the retort rests having lugs as B' and b on
opposite sides thereof; a clamping lever D pivoted to the lug B and pivoted at or
near its middle to the cover E; a cam d attached by the links d to the free end of
the lever D and arranged to engage the lower side of the lug b; an adjustable
plug extending through said lug and whereon the cam d presses; and a
handle d² for operating said cam, whereby the cover is locked and unlocked and is
lifted and replaced by operating the handle only.
Dated this 22nd day of September 1896.
ALLISON BROS.,
Agents for the Applicant.