US940750A - Individual hair-spring-stud index for watches and clocks. - Google Patents

Individual hair-spring-stud index for watches and clocks. Download PDF

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Publication number
US940750A
US940750A US48884309A US1909488843A US940750A US 940750 A US940750 A US 940750A US 48884309 A US48884309 A US 48884309A US 1909488843 A US1909488843 A US 1909488843A US 940750 A US940750 A US 940750A
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stud
balance
index
hairspring
cock
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US48884309A
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Charles Teske
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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00Mechanisms for stabilising frequency
    • G04B17/04Oscillators acting by spring tension
    • G04B17/06Oscillators with hairsprings, e.g. balance
    • G04B17/063Balance construction

Definitions

  • This invention relates to hairspring stud indexes for time pieces, and is-particularly adapted for providing an index for determining the proper angular position of the hairspring stud of each individual watch or clock relative to the roller jewel for the engagement of the escapment lever and by means of which index the proper relative positions of these parts may be reestablished upon replacing the hairspring with its stud and collect upon the balance staif after their removal.
  • This invention has reference to an index to be permanently applied to some part of each watch or clock movement, and by which the positions of the roller jewel and hairspring stud relative to each other and to the balance stafl may be indicated. So that in the event of its becoming necessary to remove the hairspring with its stud from the balance or to replace a broken balance stafi with a new one or if for any other cause any of the parts of the balance wheel mechanism are taken apart the position of the stud upon the hairspring may be so positioned in relation to the impulse pin, which is generally the roller ewel, that when the parts are replaced there will be no tension upon the hairspring when the impulse member is in alinement with the balance staff and the axis of the escapement lever.
  • FIG. 1 illustrates the under side face of a balance cock carrying the balance wheel and show? ing the escapement lever in dotted line position.
  • FIG. 2 is a similar view of the balance cock, the balance wheel being shown in verted and the stud removed from its bearing in the cock; this illustrates the practical application of my invention to a watch movetime pieces have left the factories.
  • the watch repairer has to deal with points of nicety in which he has to expend a considerable amount of time to replace the hairspring with its stud on the staif so that the roller jewel will correctly interline with the lever slot in order that the time piece may be in correct beat again.
  • the index will be placed 011 some member of the framing of the time piece and in watches it is most convenient to place this index on the underside face of the balance cock 7, that is the face of this cock which will engage the main plate of the watch movement.
  • This cock is shown in the present instance as provided with the usual studs 8, 8, 8 for positioning the cock upon the plate, and it is also provided with the usual screw hole 9 by which it may be secured in position.
  • the balance wheel now having reference to Figs. 1 and 2, is designated by the reference character 10, and its balance staff 11 is shown as provided with a collet 12 to which is fastened a hairspring 13.
  • the balance staff will be seated in the usual bearing 14L in the balance cock, and the hairspring stud 15 will, when the balance wheel is in proper position, be seated in a socket 16 and held in position therein by means of the set screw 17.
  • the collet and hairspring are carried upon one side of the balance wheel and a roller table 18 is carried upon the other side of the wheel.
  • the roller table carries a roller jewel 19 which engages a lever 20. When the parts are in their proper position the roller jewel 19 will be in alinement with the axis of the balance staff 11 and the axis 21 of the lever, that is when there is no tension on the main spring. This will afford proper beat for the watch.
  • the balance cock 7 is shown provided with a pair of sockets 22 and 23 for receiving the roller jewel and the balance staff respectively of the particular balance wheel of such cock.
  • the cock also carries an index in the form of a line 24: to indicate the proper position of the hairspring stud relative to the and jewel of that particular balance wheel when such staff and ewel are accurately positioned by such sockets.
  • the roller jewel sockets and the balance staff sockets are located for accurately positioning the staff and jewel each in respect of the other and this in connection with the means provided therefor will indicate the position which should be occupied by the hairspring stud of that particular time piece in respect of the staff and roller jewel thereof.
  • a form of duplex escapement balance wheel 10 is shown, which is pro vided with a hair-spring 13 having a hairspring stud 15 and an impulse pin it), which must always in each individual watch bear the same relative angular relation to each other, having the balance staff 11 for the center.
  • sockets 22 and 23 for the pin and staff respectively
  • an index line 24 for indicating the posit-ion of the stud
  • a line 26 for showing the position of the slot in the staff.
  • Time pieces provided with such indexes carry in themselves the absolutely correct means whereby the correctbeat of such time pieces can be readily reestablished if dis;- turbed for any cause.
  • a hair-spring stud index for time pieces embodying a balance cock, a socket in the balance cock for receiving and accurately positioning the particular balance staff of said cock, a socket in said cock for receiving and engaging the roller jewel of said cock, and an index on said cock for the hairspriug stud.
  • a device of the character specified embodying a balance cock, an index on the cock for the hairspring stud, and sockets in the balance cock respectively located for receiving and accurately positioning the balance staff and the roller jewel of the particular balance wheel of said cock in respect of said hairspring stud index.

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Description

c. TESKE. INDIVIDUAL HAIR SPRING STUD INDEX FOR. WATCHES AND CLOCKS.
APPLICATION FILED APILQ, 1909. v
Patented Nov. 23, 1909.
Byhzla fife/way; I
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NT OFFICE.
CHARLES TESKE, OF RAY, NORTH DAKOTA.
INDIVIDUAL HAIR-SPRING-STUD INDEX FOR WATCHES AND CLOCKS.
Specification of Letters Patent.
Patented Nov. 23, 1909.
Application filed April 9, 1909. Serial N 0. 488,843.
T 0 all whom it may concern:
Be it known that I, CHARLES TESKE, a citizen of the United States, residing in Bay, in the county of Williams and State of North Dakota, have invented certain new and useful Improvements in Individual Hair- Spring- Stud Indexes for lVatches and Clocks, of which the following is a specification.
This invention relates to hairspring stud indexes for time pieces, and is-particularly adapted for providing an index for determining the proper angular position of the hairspring stud of each individual watch or clock relative to the roller jewel for the engagement of the escapment lever and by means of which index the proper relative positions of these parts may be reestablished upon replacing the hairspring with its stud and collect upon the balance staif after their removal.
This invention has reference to an index to be permanently applied to some part of each watch or clock movement, and by which the positions of the roller jewel and hairspring stud relative to each other and to the balance stafl may be indicated. So that in the event of its becoming necessary to remove the hairspring with its stud from the balance or to replace a broken balance stafi with a new one or if for any other cause any of the parts of the balance wheel mechanism are taken apart the position of the stud upon the hairspring may be so positioned in relation to the impulse pin, which is generally the roller ewel, that when the parts are replaced there will be no tension upon the hairspring when the impulse member is in alinement with the balance staff and the axis of the escapement lever.
In the drawings accompanying and form ing a part of this specification Figure 1 illustrates the under side face of a balance cock carrying the balance wheel and show? ing the escapement lever in dotted line position. Fig. 2 is a similar view of the balance cock, the balance wheel being shown in verted and the stud removed from its bearing in the cock; this illustrates the practical application of my invention to a watch movetime pieces have left the factories. -In the event that it becomes necessary for any cause to remove the hairspring with its stud from the balance stalf, such as testing the parts of the balance for poise each time the watch is cleaned, or it becomes necessary to replace a broken balance staff by a new one, or if a new hairspring is to be put on or a new collet is to be put in place and a new roller jewel put in, or any of the other repairs to this part, the watch repairer has to deal with points of nicety in which he has to expend a considerable amount of time to replace the hairspring with its stud on the staif so that the roller jewel will correctly interline with the lever slot in order that the time piece may be in correct beat again. In most cases the watch repairer has to correct several times the hairspring with its stud on the balance staff before he finally reestablishes the exact position of the stud to make the time piece beat evenly, thus wasting considerable Valuable time, and as a matter of fact but few repairers are able to get the correct adjustment.
While a watch with a balance that is out of beat may run and take a good motion, it is the observation of experienced watch makers that an out of beat balance acts on the timing of a watch equivalent to an un poised balance, disturbing its equilibrium in certain positions and thus upsetting a very essential requirement in watches, which have taken time and care for the manufacturer to accomplish, namely the adjustment for various positions. The out of beat error is often neglected because the great importance of having a balance in perfect beat is not always realized. Besides being an impediment to the timing for various positions, the balance that is out of beat always remains at a standstill when run down, and must always be started off when rewound; whereas the balance that is in perfect beat will begin its oscillations immediately after the main spring is brought into action.
To overcome the above mentioned objections 1 have provided my improved individual hairspring stud index. Each time piece will carry in itself a hairspring stud index absolutely correct for itself and made by the manufacturer as a part of the time piece which shall remain with it.
The index will be placed 011 some member of the framing of the time piece and in watches it is most convenient to place this index on the underside face of the balance cock 7, that is the face of this cock which will engage the main plate of the watch movement. This cock is shown in the present instance as provided with the usual studs 8, 8, 8 for positioning the cock upon the plate, and it is also provided with the usual screw hole 9 by which it may be secured in position. The balance wheel, now having reference to Figs. 1 and 2, is designated by the reference character 10, and its balance staff 11 is shown as provided with a collet 12 to which is fastened a hairspring 13. The balance staff will be seated in the usual bearing 14L in the balance cock, and the hairspring stud 15 will, when the balance wheel is in proper position, be seated in a socket 16 and held in position therein by means of the set screw 17. The collet and hairspring are carried upon one side of the balance wheel and a roller table 18 is carried upon the other side of the wheel. The roller table carries a roller jewel 19 which engages a lever 20. When the parts are in their proper position the roller jewel 19 will be in alinement with the axis of the balance staff 11 and the axis 21 of the lever, that is when there is no tension on the main spring. This will afford proper beat for the watch.
In Figs. 1 and 2, the balance cock 7 is shown provided with a pair of sockets 22 and 23 for receiving the roller jewel and the balance staff respectively of the particular balance wheel of such cock. The cock also carries an index in the form of a line 24: to indicate the proper position of the hairspring stud relative to the and jewel of that particular balance wheel when such staff and ewel are accurately positioned by such sockets. The roller jewel sockets and the balance staff sockets are located for accurately positioning the staff and jewel each in respect of the other and this in connection with the means provided therefor will indicate the position which should be occupied by the hairspring stud of that particular time piece in respect of the staff and roller jewel thereof.
lVhen the parts have been placed in the sockets of the index, as indicated in Fig. 2, the collet and hail-spring are then uppermost, and if any adjustment of the collet or of the stud has to be made there will be nothing in the way of the workman to prevent his effecting the proper adjustment, that is such an adjustment as will bring the center of the hairspring stud over the index line 2%.
In Fig. 3 a form of duplex escapement balance wheel 10 is shown, which is pro vided with a hair-spring 13 having a hairspring stud 15 and an impulse pin it), which must always in each individual watch bear the same relative angular relation to each other, having the balance staff 11 for the center. In this instance there are shown sockets 22 and 23 for the pin and staff respectively, and an index line 24: for indicating the posit-ion of the stud, and a line 26 for showing the position of the slot in the staff.
It is self evident now that in case the hairspring with its stud has to be separated for any cause from the balance staff, whereby the correct beat of the balance is lost, that the same can be easily and absolutely correctly reestablished by simply placing the balance staff and roller jewel in the designed holes and taking the hair-spring wit-h its collet and stud and placing them in such a position upon the balance staff that the hairspring stud will be above the index line, and then pressing the collet down upon the balance staff. The collet until the parts are properly secured in position may be adjusted about the balance staff until the correct position of the stud relative to the index line is established.
Time pieces provided with such indexes carry in themselves the absolutely correct means whereby the correctbeat of such time pieces can be readily reestablished if dis;- turbed for any cause.
Having described my invention 1. claim:
1. A hair-spring stud index for time pieces, embodying a balance cock, a socket in the balance cock for receiving and accurately positioning the particular balance staff of said cock, a socket in said cock for receiving and engaging the roller jewel of said cock, and an index on said cock for the hairspriug stud.
2. A device of the character specified, embodying a balance cock, an index on the cock for the hairspring stud, and sockets in the balance cock respectively located for receiving and accurately positioning the balance staff and the roller jewel of the particular balance wheel of said cock in respect of said hairspring stud index.
A hairsprmg stud index for a time piece embodying a framing member of the time piece a pair of sockets in the said member stud of that time piece in respect of the staff for receiving the balance staff and the roller and roller jewel thereof.
jewel of such time piece and located for accurately positioning each in respect of the CHARLES TESKE' other, and means on the said member prop- Witnesses:
erly located in respect of said sockets for THOMAS WHITE, indicating the position of the hairspring U. C. MUNSON.
US48884309A 1909-04-09 1909-04-09 Individual hair-spring-stud index for watches and clocks. Expired - Lifetime US940750A (en)

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