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Publication numberUS100083 A
Publication typeGrant
Publication dateFeb 22, 1870
Publication numberUS 100083 A, US 100083A, US-A-100083, US100083 A, US100083A
InventorsMathias Stephan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improved spring-chair for children
US 100083 A
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Description  (OCR text may contain errors)


Letters Patent No. 100,083, dated February 22, 1870.


The Schedule referred to in these Letters Patent and making part of the same To all whom Iit may concern:

Be it known lthat I, MATHIAs STEPHAN, of Ganton, in the county of Stark, and State of Ohio, have invented certain' new and useful Improvements in Baby-Jumpers, or Ohildrens Spring-Chairs or Seats; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings making a part of this specication, in winch- Figure 1 represents a perspective view of the jumper' or chair complete, and v A Figure 2 represents an auxiliary or adjustable fulcra spring for regulating the elasticity of the main plate-spring to the weight it is designed to carry.

My invention consists in combining with a bent platespring, npou the free end of which a chair, seat, cradle, or other contrivance for holding a child, is placed, an adjustable fulcra-spring, for regulating the tension of the plate-spring to the weight to be carried by it.

lO enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference tothe drawings.

A i'ame or base-piece, A, is first provided, that will be firm enough toY resist the weight and strain upon it without tipping over or upset-ting.

A frame of a V-form answers a very good purpose.

Upon the head B of this frame is fastened one end, a, of a bent spring, C, which, rst curving upward and forward, is then turnedv rearward, and upon its extreme rear portion carries a chair, D; or, instead of a chair, a cradle, or any other thing onor in which a child may sit or lie.

Under the bend or curve of this plate-spring C there isarranged an auxiliary adjustable fulcra-spring, E,

which is held to the base-piece A by a clamp-screw, b, and thumb-nut c, said' screw passing through a ulated or adjusted to the weight of the child or person who for the time being uses the chair, cradle, or seat, the thumb-nut c is run np,the spring E freed, and then, by moving it forward or back, the plate-spring is made more or less elastic or flexible, theso moving of said spring changing the fulcra of the plate-spring,

but upon an elastic point-or medium, the palm of the n auxiliary spring being upon its free end, and receiving and supporting the plate-springthere.

Having thus fully described my invention,

XVhat I claim therein as new, and desire to secureby Letters Patent, is-

In combination with the plate-spring C, the auxiliary y and adjustable fnlcra-spring E, for the purpose of regnlating the tension of said plate-spring to the weight to be carried by it, substantially as described and represented.


Witnesses LEM. SLUssER, JOHN-M. MYERS.

Referenced by
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US2434783 *Jun 7, 1944Jan 20, 1948Robert T AtheyHobbyhorse
US2704112 *Jul 5, 1951Mar 15, 1955Rice Herbert CTractor seat having adjustable spring support
US5242212 *Aug 17, 1990Sep 7, 1993Polley Robert F LFor supporting an infant
US6379256Nov 2, 2000Apr 30, 2002The Little Tikes CompanyRotatable and pivotable amusement apparatus
US6533672Dec 19, 2001Mar 18, 2003The Little Tikes CompanyRotatable and pivotable amusement apparatus
US7549698 *Mar 22, 2006Jun 23, 2009Selle Royal S.P.A.Integrated human body support structure, particularly a saddle or seat for a vehicle
US7563170Mar 20, 2006Jul 21, 2009Graca Children's Products Inc.Child motion device
US7607734Nov 3, 2006Oct 27, 2009Graco Children's Products Inc.Child motion device
US7614930Nov 1, 2006Nov 10, 2009Graco Children's Products Inc.Inflatable child activity center
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US7722118Mar 1, 2007May 25, 2010Mattel, Inc.Repositionable child support device
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US7824273Nov 3, 2006Nov 2, 2010Graco Children's Products Inc.Child motion device
US7883426Mar 5, 2009Feb 8, 2011Graco Children's Products Inc.Child motion device
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US8187111Nov 11, 2009May 29, 2012Graco Children's Products Inc.Child motion device
US8657374 *Jun 17, 2009Feb 25, 2014Thomas Oliver Duncan HiggsChair
US20110089730 *Jun 17, 2009Apr 21, 2011Thomas Oliver Duncan HiggsChair
CN101299950BNov 3, 2006May 19, 2010哥瑞考儿童产品公司Child motion device
WO2007056690A2 *Nov 3, 2006May 18, 2007Graco Childrens Prod IncChild motion device