US269428A

US269428A - Escapement mechanism for watches

Info

Publication number: US269428A
Authority: US
Priority date: 1882-04-11
Filing date: 1882-04-11
Publication date: 1882-12-19
Anticipated expiration: 1899-12-19

Description

-(ModeL) J. KNEEN, 2d., & W. M. REED.

ESOAPEMBNT MEGHANISM FOR WATCHES. No. 269,428. Patented De0.19,1882.

WITNESSES a INVENTOR y 4461mm fififif PATENT OFFICE.

.JAMES KNEEN, 2D, OF BIRMINGHAM, AND WELLINGTON M. REED, 0F

HUNTINGTON,

CONNECTICUT.

ESCAPEMENT MECHANISM FOR WATCHES.

SPECIFICATION forming part of Letters Patent No. 269,428, dated December 19,1882,

Application filed April 11, 1882. Model.)

To all whom it may concern:

Be it known that we, JAMES KNEEN, 2d, of Birmingham, in the county of New Haven and State of Connecticut, and WELLINGTON M. REED, of Huntington, in the county of Fairfield and State of Connecticut, have invented a new and useful Improvement in the Escapement Mechanism of Watches, of which the following is a full, clear, and exact description.

Our invention relates to the ruby-pin tables of watches, with the object to allow adjustment of the tables and hair-spring 'ot' the balancewheels without removal of the parts from places, as is required when the wheel and table are attached. permanently to the pivot-shaft.

'lheinvention eonsistsin attaching the parts so that they can be adjusted in relation to each other on the staff, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forminga part of this specification, in which similar-letters of reference indicate corresponding parts in both the figures.

Figure l is a plan view of a staff and rubypin table, and Fig. 2 is a sectional side view ofthesameparts with the balance-wheel added.

A is the table, or roller, as it is sometimes termed, fittedwith ruby-pin a; b, the pivot staif carryingthe table, and O is the balancewheel, also on the stafi'. The wheel 0 is made fast on the stall' in the usual manner. The table A is held loosely on the staff between a collar, d, and a toothed wheel, 0, and the table is provided with a spring pawl or pawls,f, that engage the teeth of the wheel, so that there is friction enough to hold the table and cause its movement with the staff.

It will be readily seen that this construction permits adjustment of the ruby-table on the stati', so that in case the hair-spring of the watch requires adjustment the staff need not be reinoved flOlll its hearings. All that is necessary is to loosen one end of the spring, hold the ruby-table by the escapement-lei er, and with the balance-wheel turn the stafi" one or two teeth of the wheel e,as may he required.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- In a watch-escz'ipement, the combination, with the ruby-table A. the fixed toothed wheel 0, and the pawlf, of the balance-wheel O and stafl' I), as shown and described.

JAMES KNEEN, 2D, WELLINGTON MERRILL REED. Witnesses CHAS. (J. BLAIR, N. 'l. SWIFT.