Improvements in Means for Securing Carriage and the like Lamp ] Handles.
Year: 1899

page_text: Date of Application, 6th Oct., 1899
Complete Specification Left, 6th July, 1900-Accepted, 25th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in Means for Securing Carriage and the like Lamp ]
Handles.
I, WILLIAM TUCKER WEBBER, of City Lamp Works, Bishop Street, in the City
of Birmingham, Manufacturer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in means for securing carriage or the
like lamp handles (candle tubes).
According to this my invention form upon the upper end of the handle a
collar having a square or an undercut lower edge, and a bevil shaped or ratchet
like notch cut in the periphery of such collar. The said handle is made to fit
in the socket of the lamp after the usual manner.
In the bottom of the lamp body and corresponding. with the said collar upon the
handle when the latter is pushed home, I provide the following catch mechanism,
that is to sav. I secure a pivoted lever, working horizontally, whose forward end
takes beneath the collar and prevents its withdrawal, its underside being bevilled
so that the upward passage of the collar will push it backward out of the way
until the collar has passed it. This lever is pressed forward by a spring. A
secondary lever is now pivoted to the primary lever about midway in its length,
and the nose of this secondary lever falls in the path of the ratchet like notch
of the aforesaid collar. This lever is also pressed forward by a spring.
travel of both levers is limited by suitable stops.
The
The action is as follows:-Upon the insertion of the handle the collar pushes
back both the levers until clear of the primary one, and holding backwardly the
other. The primary one then passes beneath the collar, and the handle is thus
secured. If the handle be turned around in the one direction, the nose of the
primary lever lies beneath the collar, and the point of the secondary lever rides
idly around the periphery of the collar, but when turned in the opposite direction,
the ratchet notch engages the point of the secondary lever, and thereby pushes
back the primary lever clear of the collar, and while in such position, the handle
may be withdrawn.
Dated this 5th day of October 1899.
CHARLES T. POWELL,
Applicant's Agent.
Improvements in Means for Securing Carriage and the like Lamp
Handles.
I, WILLIAM TUCKER WEBBER, of City Lamp Works, Bishop Street, in the City
of Birmingham, Manufacturer, do hereby declare the nature of this invention
Pico S71

page_text: and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:―
This 'invention relates to improvements in means for securing carriage or the
like lamp handles (candle tubes).
In order to clearly explain this my invention, I have appended an illustrative
drawing upon which are figures and numbers of reference, the same numbers
referring throughout the several views to the same thing or part.
Fig. 1, is a part view in elevation, and Fig. 2, a plan view of the lamp handle.
Fig. 3, is a plan view of the catch mechanism showing the same in its locked
position.
Fig. 4, shows the catch mechanism in its unlocked position.
Figs. 5 and 6, each show plan and edge views of the primary and secondary
levers.
8, represents the lamp handle, and 9, represents the lower part of the body of
the lamp. Portions only of these parts are shown, as their general construction
and arrangement are of ordinary character.
According to this my invention I form upon the upper end of the handle 8,
a collar 10, having a square or undercur lower edge at 11, and a bevil shaped
or ratchet like notch 12, cut in the periphery of such collar. The said handle is
made to fit in the socket of the lamp after the usual manner.
In the bottom of the lamp body and corresponding with the said collar 10,
upon the handle when the latter is pushed home, I provide the following catch
mechanism, that is to say, I secure a pivoted lever 13, working horizontally,
whose forward end 14, takes beneath the collar and prevents its withdrawal its
underside being bevilled so that the upward passage of the collar will push it
backward out of the way, until the collar has passed it; this lever is pressed for-
ward by a spring 15. A secondary lever 13ª, is now pivoted at 16, to the primary
lever about midway in its length, and the nose 17 of this secondary lever falls
in the path of the ratchet like notch of the aforesaid collar (as shown in dotted
lines in Fig. 1). This lever is also pressed forward by a spring 18. The travel
of both levers is limited by suitable stops.
The action is as follows:-Upon the insertion of the handle into the lamp, the
collar 10 pushes back both of the levers until clear of the primary one, and hold-
ing backwardly the other. The primary one then passes beneath the collar, and
the handle is thus secured, as seen in Fig. 3. If the handle be turned around
in the direction of arrow 19, the point of the secondary lever 13ª, rides idly
around the periphery of the collar, while the nose of the primary lever, lies
beneath the collar 10; but when turned in the direction of the arrow 20, the
ratchet notch engages the point of the secondary lever, and thereby pushes back
the primary lever clear of the collar 10, and while in such position, the handle
may be withdrawn, as seen in Fig. 4.
Having now particularly described and ascertained the nature of this my said
invention, and the manner in which the same is to be performed, I declare that
what I claim is:-
In carriage or the like lamps, the combination with the handle 8, having
collar 10 with undercut 11 and ratchet notch 12, of the compound lever 13, 13.
constructed and arranged substantially as set forth and shown, and for the pur-
poses specified.