US660884A - Metal-depositing apparatus. - Google Patents

Description

No. 660,884. A

(No Model.)

WITNESSES:

Patented Dot. 30, I900. .H. B. BOISSIEB.

METAL DEPOSITING APPARATUS.

(Application filed 4172.4, 1900.) v

2 Shasta-Sheet I.

(Nu Model.)

H. n. IBOISSIER.

METAL DEPOSITING APPARATUS.

(Application filed Apr. 4, 1900.)

Patented Oct. 30, I900.

2 8heets-Sheat 2.

WITNESSES:

zimmmu A WORN/578' UNITED STATES PATENT. Qrricn.

HERMANN R. BOISSIER, OF NEW YORK, N. Y.

M ETAL-DEPOSITING APPARATUS.

SPECIFICATION formingpart of Letters Patent No. 660.884, dated October 30. 1900.

Application filed April t, 1900. serial No. 11,476. \No model.)

To all whom it may concern.-

Be it known that 1, HERMANN R. BOISSIER, a citizen of the United States, anda resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Metal-Depositin g Apparatus,of which the following is a full, clear, and exact description.

This invention relates to improvements in apparatus for depositing metal, particularly on wax cases, for forming electrotypes; and the objectis to provide an apparatus by means of which the plates may be much more quickly formed than is possible with the usual or 0rdinary apparatus.

I will describe a metal-depositing apparatus embodying myinvention and then point out the novel featuresin the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective View of an apparatus embodying my invention. Fig. 2 is a sectional elevation thereof, and Fig. 3 is a section on the line 3 3 of Fig. 2.

Referring to the drawings, designates a tank, preferably having a lining 11 of lead to prevent any possible leakage. Supported on the tank is [a frame consisting of metal rods 12 13, which rest upon opposite side walls of the tank and are connected'by metal rods 14 and 15. Suspended from the rods 12 and 13 are the anodes or copper plates 16 and 17, and suspended from the rods 14 and 15 are the anodes or copper plates 18 and 19. Another frame consisting of metal rods 20 and 21 andconnecting-rods 22 and 23 is also supported on the upper side of the tank and below the first-described frame, so as not to contact therewith. This last-named metal frame is designed to support plates 2 25, 26, and 27, upon which the form or case is placed, the said form or case consisting of wax, upon which a conducting material is placedsuch, for instance, as plumb-ago. The plumbago is further provided with a coating of metallic copper produced by the action of iron-filings upon sulfate-ofcopper solution.

Extended vertically at the center of the tank is a hard-metal tube 27, preferably having a sheathing or cover of lead. This tube forms a guide for a rod 28, having connection at its upper end by means of a link 29 with an eccentric orcrank 30,driven by any desired motor. Arms 31, 32, 33, and 34 extend outward from the upper end of the rod 28, and these arms carry agitating devices, (here shown as rods 35,) which extenddownward in the solution in the tank between the anodes and the cathodes or work to be operated upon. Connected to the lower end of each rod 35 is a horizontal rod or tube 36. These several rods 35 and 36 are preferably covered with a sheathing of lead.

Arranged on the outer side of the tank 10 are contact- plates 37 and 38, which are connected by a resistance-coil 39 and are also designed to be connected by a contact-plate 40, pivoted at its lower end to the contact-plate 38 and adapted to engage at its opposite end with the plate 37. A leading-in wire ll, from any suitable source of electricity, connects with the plate 38, while a wire 42 leads from the plate 37 to a connection with the frame supporting the anodes. The frame supporting the cathodes or the work to be operated upon is connected to a source of electricity by means of a wire 13.

In operation the switch or plate is to be opened, so that the current passing into the tank will be passed through the resistance 39.

This at first produces a comparatively light current through the solution, which will prevent a burning out or destruction of the connection between hook and suspended plates. After the operation shall have been gradually started the plate 40is to be moved into engagement with the plate 37, and then the current will pass through this plate 40, because it is of less resistance than the coil 39. During the action of depositing the metal the agitators will be moved up and down, which by thoroughly stirring the liquid in the tank will break up or destroy gases, such as hydrogen and oxygen, that usually form on the cathode and anode, and by thus destroying thegases the operation of depositing metal on the form is much more quickly done than in ordinary electrotyping apparatus, because a higher voltage may be employed.

Having thus described my invention, I

claim as new'and desire to secure by Letters Patent 1. In an apparatus for depositing metal, a tank for containing a solution, arms supported on said tank and having connection with an electrical supply device, the said arms being adapted to support anodes and cathodes, a tube extended upward in the tank, a rod movable in said tube, means for moving said rod upward and downward, arms extended outward from said rod, and an agitator carried by each arm, each agitator consisting of a downweirdly-extending rod and a horizontally-disposed rod at the bottom,substantia1ly as specified.

2. In an apparatus for depositing metal, a tank for containing an acid solution, rods supported on said tank and having connection with an electric supply, said rods being adapted to support anodes and cathodes, a 1eadcovered tube extended upward in the rank, a rod movable in said tube, means for moving said rod upward and downward, arms extended from said rod, and leadcovered rods carried by said arms and extended into the tank between the anodes and cathodes, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' HERMANN R. BOISSIER.

Witnesses:

JNo. M. BITTER, O. R. FERGUSON.

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