US963817A - Dipping mechanism for electroplating apparatus. - Google Patents

Description

J. H. SHAW.

, DIPPING MEGHANISM FOR ELEGTROPLATING APPARATUS.

APPLICATION FILED MAY 3, 1909.

Patented July 12, 1910.

s SHEETS-SHEET 1.

INVENTOR. Tim M MW FVJTNESSES:

J. H. SHAW. DIPPING MECHANISM FOR ELEGTROPLATING APPARATUS.

APPLICATION I'ILED MAY 3, 1909.

963,817. Patented July 12,1910.

3 BHEB-TS-8HEET 2.

W/TNESSES: 'INVEY 0R. fl N. W? W BY W Mir m ATTORNEi S J. H. SHAW. DIPPING MECHANISM FOR ELEOTROPLATING APPARATUS.

APPLICATION FILED MAY 3, 1909.

963,81 '7, Patented July 12, 1910.

3 BHEETS-SHEET 3.

* m; 11%; W {QM/1 JOHN H. SHAWQOF NEW HAVEN, CONNECTICUT, ASSIGNOR T SABGENT & COMPANY, OF NEW HAVEN, CONNECTICUT, A. CORPORATION OF CONNECTICUT.

DIPPING MECHANISM FOR ELECTROPLATING APPARATUS.

Patented July 1L2, ieio.

To all whom it may concern:

the articles to be electro-p Be it known that I, JOHN H. SHAW, of the city and county of New Haven and State of Connecticut, have invented new and useful Improvements in Di ping Mechanism for Electroplating or Slmilar Apparatus, of which the following is a full, clear, and exact description, when taken in connection with the accompanying drawings, which form a part hereof.

This invention has for its object the production of a simple and eflicient apparatus for continuously carrying on the operation of electro-plating by providing mechanism for automatically immersing and extracting ated and transferring them from one bath to the other. This object is accomplished by means of a traveler supporting the carrier from the work holder, and novel mechanism for actuating the carrier at the proper time to raise the work holder to remove the articles from one bath and immerse or dip them again in the next succeeding bath. Hitherto the means provided for raising and lowering the work holder have failed to give the articles the full benefit of the bath, because the articles have been gradually raised from'and lowered into the bath as they have traveled from'one end of the tub to the other.

The present invention, provides a rotary member that actuates the carrier to swing the work holder in a reverse direction from the movement of the traveler as the Work holder is raised or lowered, thereby permitting the articles or work holder to travel on t1on of the apparatus, and Fig. 3, a transverse vertica section through the traveler and earl-gait, and the actuating mechanism.

In all figures, similar letters of reference represent like parts. 7 a

In the drawings, the parts deslgnated by the letters A, A represent a series of baths or tubs, and B an endless chain rotated in a horizontal plane by means of a sprocket C driven by any suitable actuating mechanism (not herein shown). Suspended from links X of the chain properly spaced are travelers D. These may be suspended (as shown more particularly in Fig. 3) by means of a supporting plate T fitting over the link X of the chain andsecured to the upper end of the traveler D by a bolt or bolts V. Each traveler D has transverse bearin s for a loosely rotating shaft or carrier l d to an 4 outer end of which is rigidly secured a supportin arm F with a holder F. On either side 0 the traveler D wheels G are loosely mounted on the carrier E. The'se wheels G are ada ted to run on the elevated track J mount below the chain B and above the tank or tanks A, A, etc. The track is herein shown consisting of two parallel rails J and J, and the wheels of the carrier are held on the rails by means of a depending studH on which is mounted a roller I of proper width to fit between the two rails of the tracks J and J and prevent lateral movement of the traveler D. There is also mounted on the carrier or shaft E one or more gears L and M which are secured to the shaft. E by keys N, or other suitable means so that they will rotate with the shaft E, although-capable of a limited longitudinal movement thereon. These gears L and M are adapted to engage ratchetsO and P, respectively, which are located in proximity to the rails J and J of the elevated track. The ratchets O and P are situated (as shown more particularly in Figs. 1 and 2) over the partitlons S, S, between the several tubs or baths A, A, etc. Work-holders R are adapted to be supported on the holder F of the arm F of the carrier in any suitable manner.

The operation of the apparatus is as fol-' lows: The articles to be lated are placed upon work holders R, and the chain B set in motion by ,means of the sprocket C.

IVhen one of the travelers D moving along the track J, J comes to a point where one of the gears L or M engages one of the ratchets O or P, the teeth of the gear will mesh with the teeth of the ratchet so that the. ear will be rotated in the direction indicate by the arrow (Fig. 2) and the carrier E to which the gear is keyed will rotate therewith swingmg the arm F around so that its end to .WhlCh the work holder is secured describes a curve substantially like that in-.

.dicated in dotted line (Fig. 2). This movenext succeeding tub 'or bath near its end partition S. The continued. movement of the chain andthe depending carrier moves" the work holder forward on the same hori zontal plane'through the bath or tub".A., u ntil one of the gears L or M engagesfthenext succeeding ratchet mounted overthe -parti-..

tion S at the other endof the bath or tub A, when the operation of raising the work" holder will'be repeatedfas above described.-

By this construction the work'holder is carried 'forward bythe endless chain until it comes to a position almost against the partition S or S When it is raised by the rotation of the axle the outer endof the arm tends to swing sli htlybackward away from the partition, an the reverse direction from that of the movement of the traveler D, as indicated by the dotted lines (Fi 2); On the other hand, when the work hol er is the next succeeding bath or tub A, so tha t the work holderpractically travels through the full-length of the tub on substantial y the same horizontal line.

As it may be desired to raise or dip certain classes of articles more rapidly than others, the two gears L and M mounted on the axle E of the carrier differ in diameter.

By this arrangement, when the gear" L is Y ing from the spirit thereof, what I c aim and desire to secure by Letters Patent, is

1. In dipping mechanism, the combination with a work holder; of a traveling rotary member adapted to raise or lower it upon the rotation of said member, substantially as described. Y

2. In dipping mechanism, the combination with a work holder; of a rotary member adapted to travel horizontally above a bath, and upon its rotation to raise or lower the work holder from or into the bath, substantially as described. v

3. In dipping mechanism, the combination with a rotary member adapted to travel above a bath and to be intermittently rotated; of a work holder raised or lowered upon the rotation of said member, substantially as described.

ain dipped in the succeeding tub the com-; l ete revolution of the axle and the armtends to move the work holder backward into; close juxtaposition with the' partition S of 4.111 dipping mechanism, the combination with awork holder; of atraveling carrier; a rotary member carried thereby, and adapted to raise or lower the work holder upon the rotation of said member, substantially as describedl 5. Indipping mechanism, the combination with a series of work*holders;'of a series of rotary members adapted to raise or --lower them upon the rotation of said mem- 'bers; and means'for propelling said members horizontally .and for. rotating each member separately, substantially as described j 6. In dippingcmechanism, the combination with a carrier; of a work holder supported thereby; and means for rotating said carrier and thereby raising or lowering saidholder, substantially as described.

7. In "dipping mechanism, the combina tion with an endless chain; of a carrier propelled thereby; a work holdersupported by :said carrier; and means for rotating said jcarrier and thereby raising or lowering said holder, substantially as described.

8. In dipping mechanism, the combination with atrack; of a carrier adapted to travel thereon; a work holder supported thereby; and means for rotating said carrier and thereby raising or lowering said holder, substantially as described. 9. I dipping mechanism, the combination with a carrier capable of rotation; a work holder s11 ported thereby; and means for rotating said carrier to'raise or lower said holder, substantially as described.

10. In dipping mechanism the combinationwith an endless chain; oi a' carrier propelled thereby and capable of rotation; a work holder supported thereby; and means for intermittently rotating said carrier, substantially as described.

11. In dipping mechanism, the combination with an endless chain; of a series of carriers propelled thereby and capable of independent rotation; work holders supported by said carriers; and means for rotating said carriers se arately to raise or lower said work hol ers, substantially as described.

12. In dipping mechanism, the combination with a rotary carrier; aj crank arm rigidly connectedtherewith for supporting the work holder; and meansfor'rotating said carrier and crank arm, substantially as described.

13. In dipping mechanism, the combination with an endlesschain; of a series of carriers propelled thereby; work holders supported by said carriers; a gear mounted on said carrier and adapted-to rotate therewith;

and an engagement adapted to rotate said gear, substantially asdescribed.

1ft. In dipping mechanism, the combination with an endless chain; of a traveler mounted thereon; a rotar shaft loosel In witness whereof I have hereunto set mounted on said traveler aving a cran my hand on the 27th day of Aprll, 1909. arm; a gear and ratchet connection with said shaft to rotate the same; and a work holder O SHAW supported by said crank arm and raised or Witnesses:

lowered u on the rotation of said shaft, MAY L; OCONNOR, substantial y as described. SAMUEL H. FISHER.

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