US709528A

US709528A - Mosquito canopy.

Info

Publication number: US709528A
Application number: US8658601A
Authority: US
Inventors: Mary Elizabeth Webber
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-12-19
Filing date: 1901-12-19
Publication date: 1902-09-23
Anticipated expiration: 1919-09-23

Description

Patented Sept. 23, 1902.

m, E. WEBBER. MUSOUITU CANOPY.

(Application filed Dec. 19, 1901.)

(No Model.)

UNITE STATES MOSQUITO=CANOPY.

$3?ECIFIGATION forming part of Letters Patent No. 709,528, dated September 23, 1902.

Application filed December 19,1901- Serial No. 86,586. (No model.)

To (ZZZ whom it may concern:

Be it known that I, MARY ELIZABETH WEB- BER, a citizen of the United States, residing at Collier-ville, in the county of Shelby and State of Tennessee, have invented a new and useful Mosquito-Canopy, of which the following is a specification.

This invention relates to improvements in portable screens or canopies.

The object of the invention is to provide a simple and effective device for opening and closing the canopy and for supporting it in open position.

Figure 1 of the accompanying drawings represents a perspective view of a canopy having this improved device applied thereto. Fig. 2 represents a perspective view of the canopy-supporting device detached from the canopy and showing the ribs broken off. Fig. 3 represents a bottom plan view of said device. Fig. 4 represents a transverse vertical section of the device, taken when in closed position. Fig. 5 represents an enlarged detail showing the folding joint in one of the ribs.

The same reference characters indicate corresponding parts in all the figures.

The drawings show a supporting device for a canopy, which may be used in connection with a fly-screen, a mosquito-bar, which may be either suspended ordropped down over the article to be protected, or it may be applied to a canopy or shade for a baby-carriage. clamping hub member preferably composed of a bottom plate and a top plate 15. The bottom plate 10 has an upwardly-extending integral stud 11 and a groove 12 on the inner face thereof near its outer edge. This plate 10 is also provided with a plurality of peripheral notches for receiving the parts here inafter to be described. The top clampingplate 15 is made of a shape to correspond with the bottom plate 10 and has a central aperture 16 therein, which is adapted to fit down over the stud 11, and the two plates are clamped together by flattening the outer projecting end of the stud 11. This plate 15 is provided on its inner face near the outer edge thereof with a groove 17 and with a plurality of peripheral notches. When the two plates 10 and 15 are disposed in clamping This supporting device comprises a.

position one over the other, the grooves and notches therein register and form bearings for the parts hereinafter described. The clamp member is provided at diametrically opposite points with peripheral sockets 13 and 19 on one side and 20 and 21 on the other side, which are adapted to receive the angular terminals of the stirrup-levers, hereinafter described. The plate 10 is provided with outwardly-extending lugs 22 and 23, which project between the

sockets

18 and 19 and 20 and 21, respectively, and form bearing edges for the stirrup-levers. Four notches, as 22", are disposed at the four corners of the clamp, and in each notch, clamped between the plates 10 and 15, are transverse rods, as 23, preferably made of heavy wire for receiving the eyes of the ribs which hold the canopy in ex tended position and which will be described. This clamp is also provided at diametrically opposite points between the notches, as 22*, with notches 24 and 25 for receiving the L- shaped levers, hereinafter described. Two stirrup-levers and are lnovably attached to the clamp by inserting their

angular terminals

31 and 32 and 41 and 42 in the sockets l8 and 19 and 20 and 21, respectively. The

levers

30 and 40 are of the same construction, so one only will be described in detail. The lever 30 has the opposite sides thereof connected by a transverse rod 33, which is bent downwardly at its opposite ends and upwardly at its center, forming rests 34. and 35 for the supporting-ribs. The rod 33 is connected at its upwardly-curved center to the end of the lever 30 by a concavo-convex plate 36, which forms a bearing-surface for the short end of the L-shaped lever. The lever 10 is provided with corresponding parts and has a similar bearing-surface formed for the short end of the other L-shaped lever.

Two operating and lockin g L-shaped levers and are pivotally attached to the clamp, as will be presently described. These

levers

50 and 60 are provided at their upper outer ends with eyes 51 and 61, and the lever 50 has a book 52 extending transversely therefrom and adapted to engage the eye 61 of the lever 60 to hold the supporting device in open position. These L-shaped lovers are provided at their lower ends with downwardly-project ing lugs or

heels

53 and 63, having angular studs, as 54 and 64:, projecting from the opposite sides thereof. 'These oppositely-disposed studs are adapted to fit in the grooves in the clamp and form pivots on which the L- shaped levers swing. The short arms and of these levers are adapted to engage the curved faces or sockets of the conoavo-

convex plates

36 and 46 of the

stirruplevers

30 and 40, and by drawing the outer end of the L-shaped levers upward the stirrup-levers are forced open into approximately horizontal position.

The pivotal axes of the L-shaped operatinglevers are farther from the center of the hub member than are the pivotal axes of the stirrup-levers, as will be observed by reference to Fig. 3 of the drawings. I-Ience as the stirrup-levers are turned upwardly and outwardy by the operating-levers the arms of the latter act as cams and are slid outwardly un der the stirrup-levers,therebyincreasingtheir leverage on the ribs as the latter are raised. Said operating-levers are further provided with stop-shoulders X near their pivots, as shown in Fig. 4, which stop-shoulders engage the hub member when the operating-levers are turned upwardly and locked together, thereby effecting rigid connections between the operating-levers and the hub member to prevent the canopy from wabbling or sagging to one side.

Theframe is preferably composed of four

jointed ribs

70, 80, 90, and 100, provided at their inner ends with eyes 71, 81, 91, and 101, respectively. .These eyes are disposed in the notches, as 22", and engage the transverse rods, as'23 therein. These ribs radiate from the clamp and rest on and are supported by the down-bent ends of the rods 33 and 43 and by the corners of the stirrup-levers. These ribs are preferably formed about midway their length with a hinge-joint, as 72, and the lower member is provided with an eye, as

73, for receiving a suitable cord or wire for holding the fabric in extended position.

I claim as my invention 1. In combination with a hub member, radial ribs having their inner ends pivotally connected thereto, stirrup-levers pivotally connected to said hub member and adapted to swing outwardly and upwardly under the ribs, to extend the ribs radially and support them, and operating-levers pivotally connected to the hub member, having arms projecting outwardly therefrom to engage the under sides of said stirrup-levers, extend the same radially and support the same in said position, and having stop-shoulders to bear on the hub member, substantially as described.

2. In combination with a hub member, radial ribs having their inner ends pivotally connected thereto, stirruplevers pivotally connected to said hub member and adapted to swing outward and upwardly under the ribs, to extend the ribs radially and support them, operating-levers pivotally connected to the hub member, having arms projecting outwardly therefrom to engage the under sides of said stirrup-levers, extend the same radially and support the same in said position, having eyes at theirouter ends to overlap each other and one having a hook to engage the eye of the other and lock said levers with the stirrup-levers and ribs in extended position, and being further provided with stopshoulders, to bear on the hub member, for the purpose set forth, substantially as described.

In testimonythat I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

, MARY ELIZABETH WVEBBER.

Witnesses:

J. A. BECK, W. L. HALL.