US1578817A

US1578817A - Take-up spring

Info

Publication number: US1578817A
Application number: US738321A
Authority: US
Inventors: Fischer Charles
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-09-17
Filing date: 1924-09-17
Publication date: 1926-03-30
Anticipated expiration: 1943-03-30

Description

Marh 30,1926. 1,578,817

. C. FISCHER v TAKE-UP SPRING I Filed Sept. 1924 NTOR Patented Mar. 30, 1926 "STATES P AT m1 m 4 .cHARLns FISCHER, or NEW YORK-(MY. 1

TAKE-U1? SPRING.

Application filed September-17, 1924. "Serial Iva-"738,321.

T0 aZZ whom it may concern:

Be it known that I, CHARLES FIsoHnR, a citizen of the United States,.a resident of New York'city, in the county and State of New York, have invented certain new and useful Improvements in Take-Up Springs, of whichthe following is a specification.

My invention relates. to take-up springs for electric cords used-forelectrical appliances, such as table lamps, electric irons and I the like, and more particularly to a take-up spring which can be attached to the interme. diate portionof a cord provided with con- 'nector plugs atthe ends. The invention is especially useful in connection with taking up thecord of an electric iron, thus doing away with the inconvenience and annoyance of having the cord in the way of the iron when the latter is in use and permitting use of the iron by the operator.

One of the objects of my invention. is to provide a helical take-upJspring with wire and gripping means forming part of the ends of the spring for gripping the ends to the cord.

Another object of my invention is to provide a wire helical take-up spring with its wire ends preformed into a plurality of two or more separated, gripping loops, thereby directing the gripped portion of the cord at an angle to the longitudinal, axis of the body of the spring and thus improving the gripping action. I

Another object of the invention is to pro-.

vide thegripping ends with means for attaching them to an intermediate portion of take-up spring in use with the cord attached.

to an electric iron. I

Figure 2 is a front elevation, about full size, of the form-of spring take-up shown in Figure 1. i

Figure 3 1s a top plan view looking down free atone end of the spring shownin Figure 1 and r .Figure 4:, is, a frontelevationshowing another form of takeup spring attached to a cord. q In the drawings an electric cord l-having end plugs 2 and 3 is shown attached to an electr c socket 4 at one end-and to an. electr c iron- ,5 at the other end. Thehelical colledspring 6 is formed ofsufficient' turns port the loop of the electric cord'and'to yield under the pull of use. Each endof the wire of the spring is shaped during its manufacture into a plurality of loops .which.

grip the cord. These loops ,8 and9 are two in number in the form of the invention '7 of wire to-make it strong enough to sup{ shown'in' Figuresl to 3 and may be as high as five or more in number as shown in the form illustrated m. Figure 4. A The wire tongues 10 separate the, loops in the first I form. The, wire end of the spring is thus preformed into two loops separatedby the; I

tongue and its distalend is looped at 10 around the end turn of the body portion of v the spring. The tongue projects toward the end turn of the spring leaving a space 11,

thereby enabling the cord to be inserted into the wire looped end. Means are thus provided for attachingthe ends to an intermediate'portion of the cord at anydesired place thereon. It will be observed that the v wire loops 8 and 9 in Figures 1 to 3, lie in the same plane and that the cord passes thru them cross-wise of the axis of the helical body of the spring. The cord-'isthus compelled to change its path, at each end of the spring and may make a substantially rightangled turn. The cord also passes in a bent or curved path about the tongue as shown in FigureB, the tongue because of itsspring action helping to bind the cord in the loops.

' The cord is thus frictionally and yieldingly gripped by the ends of the spring so that the amount of slack of the cord to be taken up may be readily adjusted and the spring secured to any desired part thereof. When in use with an'electric'iron as'illustrated, the user presses the spring ends overthe cord,

taking up the desired amount of slack, and

when ironing the spring will yield-as shown in Figure 1, without pulling the cord thru the gripping ends, thus allowing the iron 5 to be moved over the work on the board 12. Inthe form of the invention shown in Figure 4, the loops 13 of the spring 14 are preformed in the wire ends during the manufacture of the spring, the loops being separated from each other and extending crosswise or at an angle. to the axis of the spring 14. The separation of the loops permits the slack of the cord 15 to be inserted thru them without removing the plugs from the cord. As the cord bends the loop ends the frictional yielding grip of the ends on the cord is increased. The cords are kept at an angle crosswise of the axis of the body of the spring, which helps to increase the, grip. In both forms of-the invention, the ends and the body of the spring'consist of a single piece of Wire.

Having thus described the invention, it

y will be understood that changes maybe made in the construction for carrying the t, Without departing from the principle thereof.

What I claim is: i 1

1. An electric cord take-up consisting of a helical wire spring having wire ends, the said wire ends being shaped to provide a plurality of gripping loops for gripping the ends to the cord, which passes thru them.

2. An electric cord take-up consisting of a helical spring having a body portion and havingyielding wire and loops for gripping the ends of the cord, which passes thru them,

invention into efi'ec said end loops extending cross-wise of the axis of the body of the spring.

3. An electrical cord take-up consisting of a helical wire spring having a body portion, each wire end thereof being coiled into a plurality of preformed, separated gripping loops thru which the cord passes, said gripping loops extending crosswise of the axis of the body of the sprin 4; An electrical cord take-up consisting of a helical wire spring, each end thereof being coiled into. two preformed gripping being coiled into two preformed gripping loops, the said loops being separated by a wire tongue, the distal end of the looped ends being connected to. the end turn of the body of the spring.

7. An electrical cord take-up consisting a helical wire spring, each end thereof being coiled into two. preformed gripping loops, the said loops'being-separated by a wire tongue, the said two loops lying in'the same plane.

In testimony name to this specification.

CHARLES FISCHER.

whereof, I have signed my