Year: 1889

page_text: Date of Application (in United Kingdom), 2nd Apr., 1889
Complete Specification Left, 2nd Apr., 1889
Complete Specification Accepted, 1st June, 1889

page_text: "PP P
.
modification.
Fig. 5 is a side view of the same.
Similar letters of reference designate corresponding parts in all the Figures.
I have only illustrated such parts of the clock movement as are essential to my
improvement.
A designates the clock case, in this instance shown as cylindrical. B designates a
main spring, and B' a pinion on the main spring arbor. C designates an escapement
wheel; and D a verge co-operating with the escapement wheel.
EE designate pillars extending upwardly above the clock case A, and secured
thereto, near their lower ends, in any suitable manner, as, for instance, by screws.-
As shown, the pillars E are hollow, and at least one of them must be hollow.―
Secured to the verge D, near one of its ends, is a bent arm F.-When the verge D
is rocked by the escapement wheel, the rocking motion will be imparted to the arm F.
This motion is transmitted to a connecting rod G, which rod extends upwardly through
one of the hollow posts or pillars E, and is connected, near its lower end, to the
arm F. At its upper end, the connecting rod G is connected to an arm H, near
one end of the latter, as shown by the loose connection. The arm H extends at
approximately right angles to the connecting rod G, and through a horizontally
arranged cap or box J, secured upon the upper end of the post or pillar E; at
its other end, the arm H is rigidly secured, in the example of my improvement
shewn in Figs. 1 and 2, to a rock shaft I, journalled, near one of its ends, in
suitable bearings in the cap or box J, and near its other end, in a bearing in a cap
or box J', similar to the cap or box J, and mounted upon the upper end of the
other of the posts or pillars E.
'
Upon the rock shaft I, and about midway in its length between the caps or
boxes J J', is rigidly secured, near one of its ends, a downwardly extending arm L.
When the arm F is rocked by the verge D, motion is transmitted through the con-
necting rod G, and arm H, to the rock shaft I, whereby a swinging movement is
given to the arm L. The arms H L and the rock shaft I constitute, in effect, a bell
crank lever. Suspended from the arm L, near its lower extremity, is a pendulum P,
which may be of any suitable construction, but which I have chosen to illustrate
as consisting of a figure suspended in a frame R. The frame R is maintained upon
the arm L by means of a hook S, engaging an aperture a in the lower extremity
of the arm L. Upon the hook S is a shank b, extending, in this instance, through
cross bars c c. The cross bars c c¹ are provided, near their ends, with suitably
formed apertures, through which extend uprights d, comprised in the frame R.-
The upper of the cross bars, or c, is rigidly secured to the uprights d; the lower of
the cross bars, or c¹, is vertically moveable. The lower portion of the shank 6 is
screw-threaded, and receives a hand nut e, which hand nut is arranged below the
cross bar c-By rotating the band nut e, it, together with the cross bar c¹, may be
raised and lowered, whereby the swing of the pendulum may be regulated in order
to regulate the clock.
1
In the example of my improvement shown in Figs. 4 and 5, instead of employing
a rock shaft I, I employ a bar I, which is similar to said rock shaft, but which is
secured rigidly, near its ends, in the caps or boxes J J.-The arm H, in this
example, is unconnected with the bar I, but is extended through a suitably formed
aperture in the inner side of the cap or box J, and is then bent round in such
manner as to form a loop f about the bar I.-Below the loop f, it is extended down-
wardly for a distance, and then horizontally towards the box or cap J', and thence
upwardly, and is bent round to form a loop f¹ about the bar I, corresponding to the
loopf. When the portion of the arm which is within the cap or box J is rocked up
and down by means of the connecting rod G, it will be quite clear that the portions
of the rod H between the caps or boxes J J will be swung to and fro upon the
bar I. In this example of my improvement, the arm H, and its extensions, constitute
a bell crank lever which is fulcrumed upon the bar I.-The hook S here engages an
offset, or looped portion g on the lever.

page_text: Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what I
claim is:
--
In a clock, the combination with an escapement, an arm receiving motion from the
verge thereof, a case for the clock movement, a post or pillar extending upwardly
above the said case, a bell crank lever, a rod extending upwardly through said pillar
or post, and connected to said arm and to one of the arms of said bell-crank lever, for
transmitting motion to the latter, and a pendulum suspended from the other arm of
said bell crank lever above the clock case, substantially as specified.
Dated this zna
day ΟΙ April 1009.
NEWTON & SON,
Agents for the Applicant.
NEWTON & SON,
Agents for the Applicant.