US2550530A

US2550530A - Swing

Info

Publication number: US2550530A
Application number: US781633A
Authority: US
Inventors: Cartwright Frank
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-09-11
Filing date: 1947-10-23
Publication date: 1951-04-24
Anticipated expiration: 1968-04-24

Description

April 24, 1951 F. CARTWRIGHT swmc;

Filed Oct. 25, 194'!- Patented Apr. 24, 1951 UNITED' STATES PATENT OFFICE SWING Frank Cartwright, Old Hill, England Application October 23, 1947, Serial No. 781,633 In Great Britain September 11, 1946 The invention relates more especially to swings for use by children, but may be applied to swings for use by adults.

A swing according to the invention comprises a single rod or tube pivotally connected at its upper end to an overhead bracket adapted to be secured to some overhead members in such manner that it can swing with its axis remaining in one vertical plane, means being provided to prevent it swinging in any other vertical plane. The lower end of the rod or tube is rigidly secured to a seat preferably formed as a horizontal plate of wood, metal or other material.

The seat, if of metal, may be covered or fitted, on its upper surface with wood or upholstery or both. If the'seat is of wood or like material "it may also be covered with upholstery.

. tion.

Figure 2 is a view lookingv in the direction of the arrow of Figure 1 but showing a part of the seat broken away.

Figure 3 is a plan view of the swing.

Figure 4 is a fragmentary view in vertical section taken on the

line

4, 4, of Figure 2.

In these drawings, A indicates a metal tube secured at its foot to a seat B by means of a pin C which is passed through opposite holes in the tube near its lower end. The pin C is caused to lie closely under the seat B and it has its forward end bent back to form a hook c which is entered into'a hole formed in the front edge of the seat. The rearward end of the pin C is split to form bifurcations which, when the rod C is in position, are splayed out to keep the pin from disengagement.

A pin D is passed through opposite holes formed in the tube near its upper end and, it passes also through opposite holes formed in two cheeks e, e, integral with a sheet metal bracket E which comprises also a base plate F and four lugs f. In these latter are formed holes j through which may be passed screws or bolts for securing the bracket under the lintel of a door or window or under a floor or ceiling joist above. A central hole F is formed in the base plate F for a like purpose.

The pin D has a downwardly bent arm d adapted to enter a slanted slot 9 formed in from one side edge of a lateral extension of the cheek e. A coil spring H surrounds the pin D and presses the arm d to the inner end of the slot, thus preventing the rod D from unintentional disengagement.

The upper end of the tube A is arranged to be a close fit between the cheeks e, e, so as to constrain the tube axis from leaving a constant vertical plane.

3 Claims. (Cl. 155--58) The occupant sits preferably with his or her legs passing at either side of the tube A; and he or she may steady himself or herself by holding the tube.

In the example illustrated the seat is formed of multi-plywood. Upholstery, indicated at J by a chain line in Figure 1, may be added if desired.

Having fully described my invention, what I claim and desire to secure by Letters Patent is:

1. A swing comprising a rigid tension member, a seat rigidly connected to the lower end of said member, an overhead bracket, cheeks of said bracket disposed at either side of said tension member, a pin passing through said cheeks and said tension member, a lateral extension of one of said cheeks, a slanted slot in said extension, a downwardly bent arm of said pin adapted to be entered into said slot, and spring means adapted to retain said arm against the inner end of said slot.

2. A swing comprising a rigid tension member, a seat constituted as a plate rigidly connected to the lower end of said member, an overhead bracket to which the upper end of said tension member is pivotally attached in such manner that it can swing in one vertical plane, means which prevent said tension member swinging in any other plane, a transverse pin passing through said tension member near its lower end and lying under said seat, and a hook formed on one end of said pin and entered into a hole formed in an edge of said seat.

3. A swing comprising a rigid tension member, an overhead bracket, cheeks of said bracket disposed at either side of said tension member, a transversely disposed pin passing through said cheeks and tension member, a lateral extension on one of said cheeks provided with an angularly disposed slot, a downwardly bent arm on said pin, adapted to engage within said slot, spring means adapted to retain said arm against the inner end of said slot, a seat rigidly secured to the said tension member adjacent to the lower extremity thereof, a second transverse pin passing through said tension member and underlying said seat, and an inturned extremity on said second transverse pin entered into a hole provided in the edge of said seat.

FRANK CARTWRIGHT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 710,013 Kerr Jan. 2'7, 1903 783,921 Abell Feb. 28, 1905 1,953,774 Rice a Apr. 3, 1934