US445366A

US445366A - Shutter-fastener

Info

Publication number: US445366A
Authority: US
Publication date: 1891-01-27
Anticipated expiration: 1908-01-27

Description

(No Model.)' Q I G. H. BURROWS. SHUTTER FASTENER PatentedJan. 27, 1891.

I Vllllllllllllllll INVSNTSS na/m WITNESSES mg/ UNITED STATES PATENT OFFICE.

GEORGE H. BURROWQ'OF SOMERVILLE, ASSIGNOR TO UBERT K. PETTINGILL, OF BOSTON, MASSACHUSETTS.

SHUTTER-FASTENER.

SPECIFICATION forming part of Letters Patent No. 445,366, dated January 27, 1891.

Application filed May 19, 1890. Serial Iiio. 352,313. (No model.)

To all "whom, it may concern.-

Be it known that I, GEORGE H. BURROWS, of Somerville, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Blind or Shutter Fasteners, of which the following is a specification.

This invention has for its object to provide a simple and effective blind or shutter fast- I ener which shall engage the staples or fixed projections on the window-sill and on the side of the building by gravitation, and thus insure the latching of the blind in either its closed or open position without the use of springs.

To this end the invention consists in the improved fastening device which I will now proceed to describe.

In the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of the lower portion of a blind having my improved fastening device, the blind being shown in its closed position and engaged with the staple 01' fixture on the win- (low-sill. Fig. 2 represents a bottom view of the portion of the blind shown in Fig. 1. Fig. 3 represents a section on line 3 3 of Fig. 1, looking toward the right. Fig. it represents a perspective View of the movable partof the fastener; and Fig. 5, a perspective view of the part that is affixed to the blind, said parts being shown as detached from the blind and from each other.

The same letters of reference indicate the same parts in all of the figures.

In the drawings, (t represents a blind or shutter of the usual construction, the same being mounted to swing on vertical hinges, which are not shown. To the lower edge of the blind I attach by screws 6 e a plate 0', on

which is formed a socket c.

f represents a rod or spindle, which is inserted in the socket c, and is adapted to turn or rotate therein to a limited extent, said 5 spindle projecting at its ends outside of the socket, as shown in Figs. 2 and 3.

g 9 represent arms formed on the ends of the spindlefand projecting therefrom in a substantially horizontal direction. On the under sides of said arms are formed downwardly-projecting lugs h h, the lower edges of which are inclined or beveled, as shown in Figs. 3 and t. Both of the arms g project in one direction from the spindle f, so that their weight, together with the weight of the lugs h it, causes them to swing downwardly to position to engage a staple s on the window-sill b or a corresponding staple or fixture on the outer side of the building. I

d d represent downwardly-projcot-ing ears or stops formed on the plate 0' and arrangedv opposite the inner ends of the lugs h It, said stops being separated from the lugs by spaces 25 If of sufficient width to receive the staples or fixtures on the window-sill and side of the building.

W'hen the' blind is being swung from its open to its closed position, the lug h, which is at the inner side of the blind when the latter is closed, strikes the staple s on the window-sill when the blind is nearly closed and rides over the top of said staple, the said lug and the arm g, which supports it, being caused to rise while the lug is riding over the staple, as shown in dotted lines in Fig. 1. As soon as the lug has passed over the staple it drops by its own weight and that of the arm 9 to the position shown in full lines in Figs. 1 and 3, the inner stop (1 at the same time coming in contact with the outer side of the staples, as shown in Fig. 3, and thus arresting the closing movement of the blind. The blind is now held in its closed position by the bearing of the lug 7L on one side and the stop d on the other side of the staples. When the blind is being moved from its closed to its open position, the other lug 72. and stop (Z cooperate with the staple or fixture on the outer side of the building in the same manner that the inner lug h and stop (6 co-operate with the staple .9, each lug engaging the corresponding staple by gravitation.

To limit the swinging movements of the arms g and their lugs h, I provide the socket c with a slot t and the spindlef with a pro jection j, located within said slot. The slot is wider than the projection, as shown in Fig. 2, and its sides are arranged so that one side will arrest said projection and support the arms 9 g and lugs h h in the position shown in full lines in Fig. 1 and in Fig. 3, while the other side of said slot will arrest the projec tionj after the arms g have swung upwardly far enough to permit the lugs h to pass over the staples or fixtures with which they engage.

It will be seen that the described fastener is extremely simple in construction,comprising but two pieces, and that no springs are required to cause the engagement of the movable parts of the fastener with the staples or fixtures on the building.

Although I have shown the stops d d as formed on the plate 0', that has the socket c, I do not limit myself to this particular construction, but may form the stops (Z (Z on a separate piece which is attached independently to the blind.

I claim 1. The improved blind-fastener consisting of a flat socketed plate formed to bear on the lower edge of the blind and provided at one end with downwardlyprojecting vertical stops, arranged to strike the staples or fixtures 011 the window-sill and on the side of the building, anda rod or spindle fitted to rodownwardly-projecting beveled lugs, the inner ends of which are outside the stops on the socketed plate and are separated from said stops by spaces t 25, adapted to receive the said staples or fixtures, as set forth.

2. The combination of a fiat socket formed to bear on the lower end of a blind, a rod or spindle f, fitted to turn in said socket and provided at its ends with substantially horizontal arms 9 and beveled lugs h, said arms and lugs being adapted to rise and fall by the turning of the spindle in the socket, and the stops at d, aifixed to and projecting downwardly from the lower edge of the blind and arranged opposite the inner ends of the lugs h and separated therefrom by spaces of sufficient width to receive the staples or fixtures on the building, as set forth.

In testimony whereof I have signed my name to this specificatiomin the presence of two subscribing witnesses, this 16th day of May, A. I). 1890.

GEO. l-I. BURROWS.

\Vitnesses:

H; W. BLANCHARD, Gno. M. MCCOY.