$495.0 Buy It Now or Best Offer
free,30-Day Returns
Seller Store jld-fanman
(452) 100%,
Location: Overland Park, Kansas
Ships to: US,
Item: 235780213231
All returns accepted:ReturnsNotAccepted
Time Period Manufactured:Pre-1930
Maker:Davis & KIdder
I am a longtime seller on eBay with a 100% feedback rating and am selling a wide variety of items from my father’s 45+ year collection of antiques. YOU ARE BUYING a **SHOCKING** (sorry I couldn’t help myself) antique AC «Magneto-Electric» Quack Medical Device made by Davis & Kidder for «nervous diseases» (ca. 1865). Ari Davis (ca. 1811-1855) was a skilled American craftsman who received two patents in 1854. One of these (#11,415 of August 1) described a magneto-electric machine. While this patent was still in process, Davis sold the patent rights to Walter Kidder, a physician in Lowell, Massachusetts, allegedly for $4,000. Advertisements soon followed for DAVIS & KIDDER’S PATENT MAGNETO-ELECTRIC MACHINE FOR NERVOUS DISEASES which featured testimonials from three Americans involved with science: Benjamin Silliman at Yale College, Charles G. Page in Washington, D.C., and James R. Chilton, an instrument dealer in New York City. These machines were “MANUFACTURED BY W. KIDDER, Sole Proprietor, whose signature is attached to all genuine Machines.” By 1857, the business was in the hands of William H. Burnap (b. 1825), also of Lowell. And by1865, Burnap was working in New York City and advertising as “Manufacturer of Davis & Kidder’s Electric Machines.” The label inset to the lid of this machine indicates that the item offered here was made and sold by Burnap in New York. This example is in a wood box with brass corners and a brass crank handle. The paper label inset into the lid is marked “DAVIS & KIDDER’S / PATENT MAGNETO-ELECTRIC MACHINE / FOR NERVOUS DISEASES” and “PATENTED AUG. 1, 1854” with endorsements from Silliman (at left) and Paige (at right). The text at the bottom reads “Manufactured and sold by W. H. BURNAP, Sole Proprietor, 259 West 27th St., New York, whose signature is attached to all genuine / Machines. All infringements will be prosecuted.» The fully intact label is in excellent condition and has three drawings representing different applications of the device: (1) chiropractic use on a patient’s back (left), (2) a male patient with conducting paddles, one in each hand, likely for nervous disease treatment (center), and (3) a female patient with one conducting paddle in one hand, and the other conducting panel in a tub of water with the patient’s foot inside, indicating treatment for some type of foot or leg ailment. The device is operated by cranking the brass handle on the front which through gears and two pulleys cause two cylindrical coils on the left of the machine to rotate in front of a large u-shaped permanent magnet in the back of the box. This rotation induces an AC current (Faraday’s law) in the coils and the conducting paddles if the paddles are placed at two points on a patient to complete the electrical circuit so that a low-voltage current can flow. The conducting paddles in this very early version of the device are hollow metal cylinders connected to wires that attach to connections on the wood box. These cylinders could be gripped by a patient, placed on various parts of a patient’s body (i.e. back), or placed in a tub of water where a patient’s body part was present, to deliver a mild electrical shock. Note that in this very early example the metal cylinders have the original sponges in the hollow interior which, when wet and placed inside the cylinders, increases the electrical conductivity and flow of current. The device is complete, functional, and 100% original except for a string that was used to connect two pulleys to demonstrate the device’s operation. When cranking the handle a voltmeter shows that ~ 2.2 volts AC can be generated. See video. Overall the device is in very good condition with a few nicks and scratches on the wood box. One side of the wood box has a crack and one screw from the left lid hinge is missing. See photos. This is an really nice example of an early electrical device that was well designed and very creatively marketed to the American public to take advantage of the latest scientific advances of electro-magnetic phenomena. While considered a «quack» device, electroconvulsive therapy (ECT) is a medical treatment *STILL USED TODAY* to treat patients with severe major depression or bipolar disorder that have not responded to other treatments. In addition, electrical stimulation of tight muscles can loosen muscles and relieve back pain, and my brother has benefited from such treatments provided by his chiropractor, Dr. White, and affectionately calls the device «sparky». So there are some real-world medical benefits for using electricity to treat human conditions!! Use the zoom option to examine my detailed photos and make your own determination regarding condition. If you have any specific questions about this instrument that I haven’t covered in this listing or are not clear in the photos, please feel free to ask, and I will do my best to answer them. Buyer to pay within 48 hours of the end of the auction. FREE SHIPPING TO ANYWHERE IN THE LOWER 48 U.S. STATES. If the total cost of the purchase exceeds $1,000 there will be a signature required at time of delivery as per UPS regulations. On items that sell for LESS than $1,000, it is the BUYER’S RESPONSIBILITY to notify me at the time of payment if they wish for there to be a signature required when the item is delivered. Thank You. BUYERS FROM OUTSIDE THE CONTINENTAL U.S. WILL BE RESPONSIBLE FOR 100% OF THE SHIPPING & INSURANCE CHARGES. EVERY ITEM SOLD WILL BE INSURED FOR THE FULL AMOUNT OF THE PURCHASE PRICE. SHIPMENTS FOR INTERNATIONAL BUYERS THAT ARE LESS THAN $2,500 USD WILL BE SHIPPED USING THE EBAY GLOBAL SHIPPING PROGRAM. Your eBay feedback is appreciated, and I’m always glad to reciprocate. Check out my other eBay listings of other rare antiques from my father’s 45+ year collection! THANKS FOR LOOKING!!!
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