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Патент USA US2126906

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Aug. 16, 1938.
2,126,906
H. MCCURDY '
CLOCK
Filed April 1, 1937
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ATTORNEY.
Patented Aug. 16, 1938
2,126,906
UNITED STATES PATENT OFFICE
2,126,906
CLOCK
Herschel McCurdy, Detroit, Mich.
Application April 1, 1937, Serial
134,398
2 Claims.
My invention relates to a new and useful im
provement in an insulated escapement for use
on clocks and the like.
It is an object of the present invention to
provide a clock with an escapement enclosed in
a sound-proof housing so that the ticking which
is ordinarily heard to proceed from a clock will
be silenced and a silent operation of the clock
made possible.
10
Another object of the invention is thepro
vision of a device of this class which will be
simple in structure, economical of manufacture,
durable, compact and easily and quickly in
’ stalled.
15
Other objects will appear hereinafter.
The invention consists in the combination and
arrangement of parts hereinafter described and
claimed.
The invention will be best understood by a ref
20 erence to the accompanying drawing which forms
a part of this speci?cation and in which,
Fig. 1 is a side elevational view of a clock with
a part broken away and embodying the invention
which is shown in section.
25
Fig. 2 is a sectional View taken on line 2—2
of Fig. 1.
Fig. 3 is a fragmentary sectional view taken on
line 3—-3 of Fig. 2.
Fig. 4 is a view similar to Fig. 1 showing a
30 slightly modi?ed form of the invention.
As shown in the drawing, the shaft 8 on which
the escapement wheel 9 is ?xedly mounted is
extended and the escapement wheel is enclosed
in a sound-proof housing If]. The shaft H on
35 which the detent yoke I2 is ?xedly mounted is
also enclosed in the housing Ill so that the
entire equipment is enclosed in the sound-proof
enclosure. In this way the ticking sound is en
tirely eliminated in a clock of this type. It will
4.0 be noted that the housing I0 is mounted on the
upper wall 3 of the clock works frame all of
which are enclosed in the casing Hi.
In Fig. 4 I have elevated the frame to pro
vide a yoke 15 in which the end of the shaft 8
45 is projected to form a bearing therefor. The end
of the shaft II is also extended into the elevated
portion I5 to provide a bearing, and the sound
proof housing It’ is mounted so as to embrace
the escapement movement.
In this way I have provided a clock action
50
which is of the usual spring operated type and
in which there has been a silencing of the ticking
(CI. 58-53) '
sound which usually emanates from clocks of this
type.
v
While I have illustrated and described the pre
ferred form of construction, I do not Wish to
limit myself to the precise details of structure
shown but desire to avail myself of such vari
ations and modi?cations as may come within
the scope of the appended claims.
Having thus described my invention, what I
claim as new and desire to secure by Letters Pat
10
ent is:
1. In a timepiece of the class described, a sup
porting frame embodying a. pair of oppositely
disposed plates; means for securing said plates
together in spaced relation; a clock mechanism 15
mounted on said frame between said plates; a
sound-proof housing positioned on said frame
with one of the sides of said housing engaging
the outer face of one of said plates; means for
securing said housing in ?xed relation to said 20
plates; a pair of shafts journalled in said frame
and projecting through the plate engaged by said
housing and extending into said housing; an
escapement wheel ?xedly mounted on one of said
shafts in said housing; a pinion mounted on 25
said last-named shaft between said plates and
cooperating with said clock mechanism for rotat
ing said last-named shaft; and a detent mount
ed on the other of said shafts within said hous
ing for cooperating with said escapement wheel. 30
2. In a timepiece of the class described, a sup
porting frame embodying a pair of oppositely
disposed plates; a clock mechanism mounted on
said frame between said plates; a sound-proof
housing positioned on saidv frame with one of 35
the sides of said housing engaging the outer
face of one of said plates; means projecting
through said plates and through said housing
for securing said plates together and securing
said housing thereon in fixed relation thereto; 40
a pair of shafts journalled in said frame and pro
jecting through the plate engaged by said hous
ing and extending into and terminating in said
housing; an escapement wheel ?xedly mounted
on one of said shafts in said housing; a pinion 45
mounted on said last-named shaft between said
plates and cooperating with said clock mecha
nism for rotating said last-named shaft; and a
detent mounted on the other of said shafts with
in said housing for cooperating With said escape- 50
ment wheel.
HERSCHEL MCCURDY.
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