US543325A - Cannon-pinion for watches - Google Patents

Cannon-pinion for watches Download PDF

Info

Publication number
US543325A
US543325A US543325DA US543325A US 543325 A US543325 A US 543325A US 543325D A US543325D A US 543325DA US 543325 A US543325 A US 543325A
Authority
US
United States
Prior art keywords
pinion
cannon
arbor
sleeve
watches
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US543325A publication Critical patent/US543325A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft

Definitions

  • Our invention relates to an improvement in to securing the cannon-pinion to the center arbor of timepieces.
  • the object of the invention is to provide for a definite degree of friction between the cannon-pinion and the center arbor, on which it is mounted, in order to prevent the hands of the timepiece from becoming loose.
  • the invention is applicable to both clocks and watches.
  • FIG. 1 is an elevation of the center arbor, wheel, and pinion, asection of the cannonpinion, and shows the friction device interposed between the center arbor and cannon- 2 5 pinion.
  • Fig. 2 shows the center arbor, wheel,
  • Fig. 3 is a side View of the cannon-pinion and the improved friction device partly inserted into the same.
  • Fig. 4 is a top View of the nut.
  • Fig. 5 is a side View of the 0 parts shown in Fig. 1.
  • Fig. 6 shows a modification in which the friction device and nut are in one integral piece.
  • the letter A designates the center arbor, b the center wheel, and c the center pinion.
  • the improved friction device consists of a partly-split sleeve f, which takes on the tapered end (1 of the center arbor and is inter- 0 posed between the bore of the cannon-pinion and said arbor.
  • the sleeve or tube f in Figs. 1 and 3 has at its top end a slight lateral or outward flange f, at its lower end a slight contraction or inward-curved flange f and a 5 longitudinal split f which splits the said lower end.
  • the partly-split sleeve may be pulled apart a little at its split end and act as a spring, so as to remain nor mally sprung open.
  • the extremity of the tapered part of the center arbor has a screwthread g, and a nut h is employed to take thereon.
  • the parts are assembled in the following manner: The split end of the sleevefis first inserted into the bore of the cannon-pinion e, 5 5 as indicated in Fig. 3. This pinion,with the friction-sleeve within it, is then placed on the tapered end cl of the center arbor, with the eifect that the lower end f of the sleeve is made to grip the arbor, and as the pinion and 6a sleeve are forced on the arbor the taper of the latter spreads or expands the sleeve and causes its exterior to fill the bore of the cannon-pinion, thus producing a degree of friction which prevents the cannon-pinion from turning freely or loosely.
  • the cannon-pinion and split sleeve are both retained on the center arbor by a suitable screw device.
  • a suitable screw device In the present instance a nut his employed to engage the threaded end of the center arbor.
  • the center arbor a sleeve 011 the arbor and split at one end; a cannon pinion around said split sleeve; and a screw device engaging the 8 extremity of the arbor to retain both the cannon pinion and sleeve.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gears, Cams (AREA)

Description

(No Model.)
J. S. 85 A. J. BAKER.
CANNON PINION FOR WATCHES.
No. 543,325. Patented July 23,1895.
g T15- 1 I} f a fi llHHlllllllm WITNEEEES 72 INVENTDRS:
Q MW- J- 6r mm 2 /3q/, a4 2 ti 7 ATTORNEY UNITED STATES PATENT Orrrcn.
JACOB S. BAKER, OF GLEN ROCK, AND ALLEN J. BAKER, OF STEIVARTSTOVVN, PENNSYLVANIA.
CANNON-PINION FOR WATCHES.
SFECIFIGATION forming part of Letters Patent No. 543,325, dated July 23, 1895. Application filed April 9, 1895. $erial No. 545,055. (No model.)
To aZZ whom it) may concern:
Be it known that we, JAooB S. BAKER, residing at Glen Rock, and ALLEN J. BAKER, residing at Stewartstown, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Cannon- Pinions for Timepieces, of which the following is a specification.
Our invention relates to an improvement in to securing the cannon-pinion to the center arbor of timepieces.
The object of the invention is to provide for a definite degree of friction between the cannon-pinion and the center arbor, on which it is mounted, in order to prevent the hands of the timepiece from becoming loose.
The invention is applicable to both clocks and watches.
The invention is illustrated in the accom- 2o panying drawings, in which- Figure 1 is an elevation of the center arbor, wheel, and pinion, asection of the cannonpinion, and shows the friction device interposed between the center arbor and cannon- 2 5 pinion. Fig. 2 shows the center arbor, wheel,
and pinion. Fig. 3 is a side View of the cannon-pinion and the improved friction device partly inserted into the same. Fig. 4 is a top View of the nut. Fig. 5 is a side View of the 0 parts shown in Fig. 1. Fig. 6 shows a modification in which the friction device and nut are in one integral piece. l
The letter A designates the center arbor, b the center wheel, and c the center pinion. The
3 5 end Cl of the center arbor whereon the cannonpinion e is placed is tapered, as shown.
The improved friction device consists of a partly-split sleeve f, which takes on the tapered end (1 of the center arbor and is inter- 0 posed between the bore of the cannon-pinion and said arbor. The sleeve or tube f in Figs. 1 and 3 has at its top end a slight lateral or outward flange f, at its lower end a slight contraction or inward-curved flange f and a 5 longitudinal split f which splits the said lower end. Thus constructed the partly-split sleeve may be pulled apart a little at its split end and act as a spring, so as to remain nor mally sprung open. The extremity of the tapered part of the center arbor has a screwthread g, and a nut h is employed to take thereon.
The parts are assembled in the following manner: The split end of the sleevefis first inserted into the bore of the cannon-pinion e, 5 5 as indicated in Fig. 3. This pinion,with the friction-sleeve within it, is then placed on the tapered end cl of the center arbor, with the eifect that the lower end f of the sleeve is made to grip the arbor, and as the pinion and 6a sleeve are forced on the arbor the taper of the latter spreads or expands the sleeve and causes its exterior to fill the bore of the cannon-pinion, thus producing a degree of friction which prevents the cannon-pinion from turning freely or loosely. As the cannon-pinion cannot with this friction device remain motionless while the movement of the timepiece is running, the hands are sure to turn. The cannon-pinion and split sleeve are both retained on the center arbor by a suitable screw device. In the present instance a nut his employed to engage the threaded end of the center arbor.
We may modify the form of our invention 7 in some of its details, as shown, for instance, in Fig. 6, where we have united the split sleeve and the nut so that the nut is integral with the upper end of said sleeve.
Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is
The center arbor; a sleeve 011 the arbor and split at one end; a cannon pinion around said split sleeve; and a screw device engaging the 8 extremity of the arbor to retain both the cannon pinion and sleeve.
In testimony whereof we affix our signatures in the presence of two witnesses.
JACOB S. BAKER. ALLEN J. BAKER.
Witnesses:
CHARLES B. MANN, J r., O. CALVERT HINns.
US543325D Cannon-pinion for watches Expired - Lifetime US543325A (en)

Publications (1)

Publication Number Publication Date
US543325A true US543325A (en) 1895-07-23

Family

ID=2612074

Family Applications (1)

Application Number Title Priority Date Filing Date
US543325D Expired - Lifetime US543325A (en) Cannon-pinion for watches

Country Status (1)

Country Link
US (1) US543325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4692957A1 (en) * 2024-08-06 2026-02-11 Blancpain SA Friction system for a clock movement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4692957A1 (en) * 2024-08-06 2026-02-11 Blancpain SA Friction system for a clock movement

Similar Documents

Publication Publication Date Title
US543325A (en) Cannon-pinion for watches
US897579A (en) Bicycle handle-bar.
US470919A (en) Sheet-metal-knob-fastening device
US961063A (en) Nut-lock.
US636330A (en) Hinge.
US1339418A (en) Tuning-peg for stringed instruments
US450529A (en) Supplemental pendulum-bob
US496162A (en) Half to the e
US1327392A (en) Combined center and cannon pinion
US2988869A (en) Self-winding watch
US2320030A (en) Diaphragm lock nut
US1118213A (en) Fastening device for hoops.
US165793A (en) Improvement in watches
US1578889A (en) Lock washer and nut
US1800011A (en) Cannon pinion
US2356766A (en) Tuning head for stringed instruments
US616311A (en) Territory
US243885A (en) wilhelm gttlzow
US340467A (en) Louis joseph yilleeot
US426422A (en) Joint foe
US335561A (en) Anchor
US704184A (en) Stirrup.
US1549060A (en) Doorknob
US478528A (en) Nathaniel a
US383834A (en) Rickason stilwell