US861727A

US861727A - Watch-movement.

Info

Publication number: US861727A
Application number: US29889006A
Authority: US
Inventors: Emile Hubscher; Alfred Maurer
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-01-31
Filing date: 1906-01-31
Publication date: 1907-07-30
Anticipated expiration: 1924-07-30

Description

No. 861,727. PATENTED JULY 30, 1907. E. HUBSCHER & A. MAURER.

WATCH MOVEMENT.

APPLICATION FILED JAN. 31, 1908. v

THE NoRRls PETERS co., wAsHmuraN, n. c.

vUNITED STATES WATCH-MOVEMENT.

Speeieation of Letters Patent.

PATENT OFFICE.

SWITZERLAND.

Patented July 30, 1907.

Application tiled January 31, 1906. Serial No. 298,890.

To all whom it may concern:

Be it known that EMILE I'IUBser-ina and ALFRED MAURER, watchmakers, citizens of the Republic of Switzerland, and residents of La ChauX-de-Fonds, Canton of Neuchatel, Switzerland, have invented a new ,Watch-Nievement, of which the following is an exact specification.

This invention relates to watch movements and has to do more particularly with the construction and operation of the spring barrel and has for one of its objects the provision of an improved spring barrel so constructed as to facilitate removal of parts thereof in cases of repair or renewal.

The inveuton will be more fully described in connection with the accompanying drawing and will be more particularly pointed out and ascertained in and by the appended claims.

In the drawing: Figure l illustrates a watch movement embodying the main features of our invention.

Fig. 2, is a sectional view on line A`B of Fig. l. Fig. 3, is a sectional view on line C-D of Fig. 1. Fig. 4 is a sectional detail.

Like characters of reference designate similar parts throughout the different figures of the drawing.

As shown in the drawing: a designates a bridge-plate or other fixed part of the movement and h designates the pillar-plate, the bridge-plate herein shown being superposed upon the pillar-plate in direct contacta of pillartherewith and secured thereto by plurality post or screws as clearly shown in Fig. l.. train comprises a stem l, provided with a stem pinion 2 meshing with and operating a barrel pinion 3.

4 designates a locking device pivotally mounted at 5 and provided with a projection 6 adapted to lock the barrel pinion 3 and prevent reverse movement thereof under the influence of the main spring. Said locking device may be held in a locking position by a spring or equivalent means not herein shown.

The time train comprises an escapement wheel 7 provided with a pinion 8 which-operates wheels 9, 10, 1l, 12, 13 and 14, the latter, like the barrel pinion 3 being driven by the spring-barrel which will now be described in detail.

According to this invention the spring-barrel is formed of two members, one of which will be termed a winding train spring container and the other of which will be termed a time spring container7 the former driving the barrel pinion 3 and the latter driving the time wheel 14. The pillar-plate L is provided with relatively deep and shallow annular recesses h and h2 respectively. The time container, which is indicated by d is seated and revolubly mounted in recess i/ and is provided with an annular vertical extension d which in turn is provided with an annular flange d2 in which is formed gear teeth d3 adapted to mesh with wheel 14 and to operate in the shallow recess h2.

The winding bridge u and pillar-plate i and is The bridge-plate n is provided with a recess n registering with the recess 71,2 and serving to inclose the teeth (Z3. Said bridge-plate n is provided with a bearing portion n2 which overhangs the gear teeth d" and engages the vertical extension d@ By means of the complemental recesses 7V, d2 and the bearing flange n2, the barrel d is effectively held in operative relation to the time wheel 14. The barrel d is provided with a hub Il" having a boss (Z5 adapted lo engage the pillar plate z and support the main body portions of the spring barrel (l out of contact with said pillar-plate. An arbor o is provided with a reduced lower end a journaled in the pillar-plate 7i and is also provided with an enlargement or hub a2 to which the container (Z is rigidly secured. The upper end of said arbor a is reduced at a io receive the winding train container c the latter being loosely mounted on said arbor. Said container c which is provided with a hub portion c/ which engages the hub portion d* and is also provided with an annular flange c2 projecting into said container d and forming therewith a chamber e for the reception of the niainspring (not shown), One end of the mainspring is adapted to be secured in any desirable manner to the llange c2 and the other end is adapted to be secured to the hub (Z by lneans of a pin d or an equivalent or similar device, said mainspring thereby serving to rotate said barrels in opposite directions. Said barrel c is provided with an annular retaining recess cii and the bridge-plate n is provided with retaining strips o seated in recesses c and n and anchored therein by screws q or other similar means. Said strips o lie flat upon the bearing flange n? and project beyond the same and into the annular recess 03. Said barrel c is provided with gear teeth c1 adapted to mesh with and drive the barrel pinion 3 and to engage and bear upon the strips o.

It will be seen from the foregoing that means are provided for effectively maintaining the peripheral or driving portion of the barrels c and d in operative relation with the barrel pinion 3 and time wheel 14.

It will also be obvious that the foregoing construction will permit of ready and convenient removal of the barrel c in case the mainspring breaks, without necessitating the removal of other parts of the watch movement.

It will also be noted that reliance is not placed wholly in the arbor a to retain the barrels in operative relation with parts driven thereby and this construction carries with it great practical advantages in that it not only sustains the strain at points where the same is imposed but it also avoids the usual complicated and bulky structure heretofore necessary to support the main arbor.

This invention further consists in an improved construction of the escapement lever designed to enable a more compact form of a watch movement. As shown the escapement lever i) is pivotally mounted at i in the provided with the usual pallets r for engagement with the escapement wheel 7 and an impulsed pin fc for engagement with the balance mechanism x. The novelty oi this feature consists in off-setting or bending the escapement lever as at s in such a manner that said escapement lever can be mounted beneath a relatively low bridge u. and extend above the escapement mechanism in a manner to permit a relatively high mounting i'or the latter.

l Claim:-

l. A watch movement comprising' pillar plate provided with relativelv deep and shallow annular recesses. a time train spring barrel adapted to seat in said deep recess and havinl gear teeth projecting into said shallow rec s a bridge-plate mounted on said pillar-plate, and havingl a coinplemental shallow recess and a bearing (lange ene-agingsaid barrel. said bridgeplate havingl oppositely disposed retaining recesses, re,Y taining strips anchored in said recesses and pr outwardly therefrom. a winding train spring barrel pro vided with an annular recess l'or receiving;l said strips and having crear teeth bearingl in said strips. said Winding and time train barrels beingl arranged in superposed relation and forming` a chamber adapted to receive a spring. 'and an arbor journaled in said pillar plate at one end and projecting through said time train bari'el and bearing at its other end in said winding train barrel.

` A watch movement comprising' in combination. a spi-inf: barrel composed of snperposed WindingA and time barrels. anarbor tor, aid barrels. and means engaging the peripheral or driving`- portions of said barrels forming` bearings l'or th(` same and serving to hold said barrels in a given drivingr relation.

il. A watch movement comprising in combination, a pillar-plate. a bridgesplate. a spring barrel composed of supcrposed Winding. and time barrels, and bearing portions in combination, a

and devices for said bridge and pillar-plates adapted to engage the peripheral portions of said barrels to hold the saine in a given driving relation.

L A watch movement comprising in combination. a pillar-plate, a bridge-plate. a spring barrel composed of superposed winding and time train barrels. an arbor tormin; a central bearing for said barrels and mounted at one end in the pillar-plate. said pillar-plate havingr bearing portions emgag'incr the .peripheral portions of said time train barrel. and bearing devices ior said bridgoplate adapted to engage the peripheral portions of said winding train barrel to hold the same in a given driving relation.

A watch movement compr ing in combination, a pillar plate provided With a relativen deep annular recess. a time train spring` barrel adapted to seat in said recess and provided with gear teeth. a bridge-plate mounted on said pillar plate and having a bearing ilange engag ing said barrel pcripherally, retaining strips anchored to said bridgeplate, a windingl train springl barrel, provided with an annular recess receiving said strips and having gear teeth. and an arbor for said time train and winfingspring' barrel.

(i, A Watch movement comprising in combination, a pillar plate. a time train spring barrel mounted thereon and having gear teeth. a bridge-plate provided with a bearingl tiang'e engaging said barrel peripherally. a winding, train barrel snperposed on said time train barrel and provided \vith a peripheral recess. and retaining members engaging said recess.

ln testimony whereof \ve atlix our signatures in presence ot' two Witnesses.

EMILE HUBSCHER. ALFRED MAURER.

Witnesses