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ORIGINAL VINTAGE POST WWI WWII ILLINOIS CONVERSION POCKET WATCH ADJUSTED
|RReports are supplied at the request of the customer and it is for the customer's exclusive use. Reports express an opinion of the time of the examination of the jewelry. This report is for customers use only for the following two purposes, indicating estimated retail replacement value to obtain insurance coverage, or for the purpose of providing geological information. GoldSmith Works does not guarantee that the appraisal valuation will result in a sale at the price. Estimated retail replacement value is arrived after analyses of what the approximate high retail cash asking price is for labor, materials, and design. These prices may be substantially higher than actual transaction or warranty with regards to any item described in the report, since jewelry grading is not an exact science, this report represent the best opinion of the company. GoldSmith Works is in no case responsible for differences that occur by repeated grading by other experts in the field and/or use of other standards, norms, methods or criteria other than those used by GoldSmith Works. GoldSmith Works is expressly held harmless by customers including, but with out limitation for any claims or actions that may arise out of negligence in connection with the preparation of this laboratory report, or actions based upon the customer's use of the report. The information on the carat weight, clarity grade, color grade on the report is approximate due to the limitations in jewelry grading. The item was tested, graded, and examined under 10x magnification using the techniques and equipment available to GoldSmith Works, including fully corrected triplet loupe, binocular microscope, master color comparison guides, diamond color comparison tools, electronic carat balance, non-contact optical measuring device, and ancillary instruments necessary at the time of Examination. Examination.|
If you take a simple barrel and attach a ratcheted winding-gear to the center-arbor, then the mainspring can be wound by turning the center arbor rather than turning the barrel. The winding power is applied to the center-arbor through an arrangement of winding gears.
The Crown is attached to a Stem, when turned, the Stem turns a WINDING PINION, which then turns the bottom left CROWN WHEEL, which then turns the large top left wheel, the RATCHET WHEEL, which turns the Barrel Arbor, whichthen Winds The Main Spring,
The Main Spring unwinding powers the watch. Note the GEARED outer rim of the barrel below; this imparts the mainsprings power to the gear-train of the watch. A big advantage of this arrangement is that the barrel always maintains spring tension, even while the watch is being wound; an excellent centuries solution to the problem of maintaining-power!
Thus the name going barrel because the barrel is always going, even when the watch is being wound.
No. 7 0,179. PATENTED SEPT. 29; 1903.
F. J. REAVES. DOUBLE ROLLER FOR BALANCE ESGAPEMENTS.
APPLICATION IILBD AUG. 23, 1902.
lllllillll UNITED STATES I Patented September 29, 1903.
FRANK J. REAVES, ROCKFORD, ILLINOIS, ASSIGNOR TO THE ROCKFORD WATCH COMPANY, LIMITED, A CORPORATION OF ILLINOIS.
DOUBLE ROLLER FOR BALANCE-ESCAPEMENTS.
SPECIFICATION forming part of Letters Patent No. 740,179, dated September 29, 1903.
Application filed August 23, 1902. Serial No. 120,735. (No model.)
To aZZ whom it may concern:
Be it known that I, FRANK J. RE AVES, a citizen of the United States, residing at Rockford, in the county of Winnebago and State 5 of Illinois, have invented certain new and useful Improvements in Double Rollers for Watch-Escapements, of which the following is a specification.
This invention relates to that class of mechanisms known as the escapement of watches, and particularly to a double roller to be used in connection therewith, all of which will more fully hereinafter appear,
The principal object of this invention is to provide a simple, economical, and efficient double roller for watch-escapements, made in two parts and arranged to be detachably secured together, so that it may be separated easily and always assembled in correct relation.
Further objects of the invention will appear from an examination of the drawings and the following description and claims.
The invention consists principally in a double roller for watch-escapements, made in two parts detachably secured together, and means for assisting in the assembled relation of such parts to hold them in correct relation.
The invention consists, further and finally, in the features, combinations, and details of construction hereinafter described and claimed.
In the accompanying drawings, Figure 1 is a plan view of an escapement having a double roller constructed in accordance with these improvements; Fig. 2, a side elevation of the same; Fig. 3, an enlarged sectional elevation taken on line 3 of Fig. 1, illustrating a roller constructed in accordance with these improvements; Fig. 4, a plan view of the lower flange on the roller proper looking at it from below, and Fig. 5 a plan view of the main or lower portion of the roller looking at it from above.
In the art to which this invention relates it is well known that a double roller is very advantageous in that better adjustments of time can be made, owing to the fact that the roller-jewel can be located at the maximum distance from the axis of the balance-staff.
It therefore becomes desirable to make a doufurther or detailed description here.
ble roller which will have this advantage and the additional one of being easily separated for purposes of repair, renewal, and adjustment, all of which will be understood and appreciated by those skilled in the art.
In making a roller in accordance with these improvements I provide a main or lower portion at, having an upwardly-extending rollerjewel I) located therein at its maximum distance from the axis of the staff-opening c in such roller. This main or lower portion is also provided with a circular recess (1 in the upper face thereof, having a dowel-pin hole e extending there through. I next provide a roller portion proper,f, having a passing hollow Q therein arranged opposite the roller jewel, and an integral downwardly-extending tubular portion 71, provided with a circular flange t at the bottom thereof. This circular flanged portion is of a size to snugly fit the upper recess (1 in the lower portion of the roller and is further provided with a dowelpin 70, arranged to fit the dowel-pin hole in such recess.
In operation the roller is placed on the balance-staff t and the usual pallet Z and fork m are supplied, operating with the rest of the escapement and watch-train, all of which is old and well known in the art and needs no The fork has the slot and horn portions n at the front portion engaging with the roller-jewel and is further provided with a dart p, arranged when the parts are in the position shown in Fig. 1 to rest in the passing hollow and at other times on the periphery of the roller proper until such roller rotates backward and releases the same, all of which is well known and understood by those skilled in the art.
The roller or different parts thereof may be placed together and brought into correct relation without any fitting or may be sepa* rated for the purposes of repair, renewal, or adjustment with the assurance that they can be reassembled in the correct relation.
I claim-*- 1. In a double roller escapement for watches, a balance stafi, a double roller formed in two parts detachably secured together, and means for assisting in the assem bled relation of such parts tohold them in correct relation, substantially as described.
2. In a double roller escapement for watches, a balance staff, a double roller formed of a main portion carrying a rollerjewel, a supplementary disk portion provided with a passing hollow, a tubular portion detachably connecting both of such portions, and means for holding such portions in correct relation, substantially as described.
3. In a double roller escapement for Watches, a balance-staif, the combination of a main portion provided with a roller-jewel extending upwardly therethrough, a disk portion of smaller diameter provided with a passing hollow, an integral tubular portion extending downwardly therefrom having a flange in its lower portion, and means for holding such parts in correct relation, substantially as described.
4. In a double roller escapement for watches, a balance staif, a double roller formed of a main portion carrying an upwardly-extending roller-jewel and a circular recess in its upper portion, a disk roller of smaller diameter provided with a passing hollow and an integral tubular portion extending downwardly therefrom and having a circular flange at its lower end fitting the circular recess in the main portion, and dowelpin mechanism for holding such parts in their correct relation, substantially as described.
FRANK J. REAVES.
H. I. CROMER, A. L. SAVOIE.