US1215394A - Swing. - Google Patents

Description

A. McPH'EasoN. SWING.

Patented Feb.13,1917.

APPLICATION FILED DEC. 27, 1915.

wnsw

AMELIA MCPHERSON, OF EDMONTON, ALBERTA, CANADA, ASSIGNR OF ONE-HALF T ROBERT WILLIAM CONN, 0F EDMONTON, ALBERTA, CANADA.

SWING.

Specification of Letters Patent.

Patented Feb. 13, 1917.

Application filed December 27, 1915. Serial No. 68,875.

To all whom z' may concern:

Be it known that I, AMELIA MoPHERsoN, a subject of the King of Great Britain, and resident of Edmonton, in the Province of Alberta, Dominion of Canada, have invented certain new and useful Improvements in Swings, of which the following is the specification. Y

This invention relates to improvements in swings and the objects of the invention are to permit of the user operating the swing without other assistance, to simplify the construction and other objects which will be made clear hereafter, and it consists essentially of the improved i larly described and set forth in the following specification and accompanying drawings forming part of the same.

In the drawings, Figure 1 is a side elevation of the improved swing.

F ig. 2 is a sectional detail of the hand grip.

Fig. 3 is a plan view of the stop members.

Fig. 4 is a sectional elevation of an alternative form of hand grip.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings, A represents the improved swing comprising the seat 1 supported by the suspending ropes 2 hung from the beam 3 by eye screws 4, the said suspending ropes being provided intermedii ate of their length with adjustable stop members 57 the object of 4which will be made clear hereafter.

The beam 3 may, owing to the location of the swing, take different forms and when the swing is hung in a doorway the said beam would represent the lintel thereof while when hung in an attic or room the beam would form the roofA principal or floor loint. J Cooperating with the beam 3 are boards 6 connected therewith and forming part of the swing support and provided with brackets 7 in which the frame 8 is pivotally mounted. This frameis designed to carry a counterbalance weight 9 thereon and is provided with crank arms 10 terminating in eyelets 11 to which the upper end of the pulling ropes 12 are connected.

It is essential that the desired direction should be given to the pulling ropes 12 and to this end I mount guide members 13 swing particuthereon which are around which the lower end of the provided with rollers pulling ropes 12 take, the pullingv ropes being operatively secured to the eyelet 14 mounted on the upper end of the hand grips l5.

These hand grips are slidably mounted on the supporting ropes 2 and are designed to engage the stop members 5 which are ad- ]usted to limit the motion of the hand grips.

The formation of the stop members 5 is quite unique consisting of a ring 16 with which the set screw 17 makes threaded engagement, the inner end of the screw terminating ina clamp 18 adapted to frictionally engage the periphery of the supporting rope.

In Fig. 4 an alternative form of hand grip 19 is shown, which differs from that already described only in the fact that the member 14 has been replaced by annular grooves 20 adjacent to the ends of the said hand grip in which grooves the lower ends of the pulling ropes 12 are secured.

The assembly of the swing will be readily understood'from the foregoing description.

W'hen the swing is in operation it is only necessary to loosen the set screw 17 and adkjust the stops 5 to the desired position 15 continue the operation without other aid.

It will be understood that since upper and lower stop members 5 are used the height to which the swing may be oscillated is completely under control. It has also been found advisable to keep the pulling ropes 12 at all times in a state of tension and the function of the balance weight 9 is to bring about this desired result scthat the operator does not expend any more energy than is absolutely necessary to obtain the desired motion.

From this description it will be seen that I have invented a swing such as will permit the operator using the same without other aid.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention, within the scope of the claim, constructed Without departing from the 'spirit or scope thereof, it is intended that all'matter containedin the accompanying,` specification and drawings shall beinterpreted as illustrative and not in a limiting sense.

What I claim as my invention is: ncombination in a swing, a supporting e1ement,a secondary support extending'laterally therefrom, seat carrying ropes suspending from said element, hand grips slidably'mounted on said ropes, brackets onl said secondary support, a'frame pivotallymount- Gopies of'ths patent maybe obtained for ed therein7 a counterbalance Weight on said "frame, crank arms 0n said frame ropes conropes carried by said suspending ropes.

n Witness whereof I have hereunto set `my hand in the presence of two Witnesses.

AMELlA MOPHERSON.

Witnesses RUTH ERLAM, T. G. MGPHERSON.

ve Icents each, by addressing the Commissioner of Batents, Washington, D. C.

Images