US108639A - Improvement in awnings - Google Patents

Description

@tutti tatrt @sind `^dtjljiita LOUIS G. SERT AND CHRISTIAN L. SGHURB, OF BALTIMORE, MARYLAND. Y

Letters Patent No. 108,639, dated October 25, 1870.

IMPRovEM'EN-r in4 AwNlNes.

. To all whom it may concern..-

Be it known that we, Lows G. Seur and Gurus- 'rmN L. SCHURR, of Baltimore, in the county of Baltimore and State of Maryland, have invented a. new and improved Awning; and we do hereby declare thc following to be afull, clear, and exact description of the same, reference being had to the accompanying drawing making a part of this specitication, in which- Figure 1 is aside elevation,

Figure 2 a front elevation, and

Figure 3 a lateral vertical section of the ratchet, pawl, arm, cord, and spring, by the conjoint operation ot' which the awning is raised.

'This invention relates to that vclass of devices in which lazy-tongs are employed to raiseand lower an awning; and

'It consists-` First, in lazy-tongs placed at au inclination, inorder that, after having been drawn together, they may, when released from restraint, extend themselves by their own gravity, andthus lower the awning.

Second, in an' arrangement of devices whereby the awning, after having been lowered, may b e raised by winding a stud with a key, and, after having been raised, may be lowered by releasing a pawl from a ratchet.

Referring tothe drawing- A is the end, and B the side of a house.

a aare metal bars tixed vertically to the side of the house, at a distance apart a trifle greater than the length of the awning, and in such positions as to include between them the space to beprotectcd by the awning.

b are the levers of two separate systems of lazytongs, which systems are jointed at one end to the bars 'a.- The maunervof such joiuting is this: the lower extremity of one of the two. end levers bof the system is pivoted in a slot -in -the bara, while the`upper extremity ot' the other end level' b of the system is pivoted to the outer part ot' a link, c, the inne'r part of which enters a. slot in the bar b, above the other slot above mentioned, and is jointed to the bar in said slot. The result of this method of connection between the lzy-tongs and the levels b is that the former hang at au inclination sufficient to cause them to extend themselves by their own gravity when the power that holdsthcm drawn together is removed.

In the upper extremities of the two levels, b, at the outer ends of the two systems ot' lazy-tongs, a horizout-al rod, d, is secured, to which rod the awning e` is made fast, and from which the'tlap f of the awning depends. y

In lugs 7e, projecting horizontally from the side of the house, immediately above the bars a, a shaft, z',

I sition to the rst one,

vis loosely mounted, parallel with the rodd.- Around this shaft the awning is wound. v

A sheave, '11, is fixed on the shaft i, near one end of the same, around which sheave a cord, l, is wound. l

From thesheave'the cord l passes under a horizontal pulley, m, placed parallel with the side of the house, in a bracket that extends from the same, immediately beneath the sheave lr.

A second pulley, n., similar in construction and pois secured to the side of the house, at about the same height as the pulley m, and at an interval therefrom.

Over the pulley 'n the cord l is led, and thence ,vertically downward to the drum e, on the. horizontal shaft p, that projects outward from a-bracket secured to the side ot' the house, and is inclosed in a tubular case, 'r, in the rim of which is au orifice through which the cord l passes. On the shaft p is a ratchet, s, within the -case 1',

and to the side of the latter is pivoted a pawl, t, that is kept in connection with the ratchet s bythe spring u. An arm, w, projects from the rear end of the pawl t out through a's'econd orifice in the case o'.

The awning, after having been let down, may be raised by applying a key to the four-sided end of the shaft 1, that projects from the front ofthe caser,

and rotating said shaft iu the right direction for winding the cord upon the drum o. This causes the shaft t to turn backward and t-ake up thel awning, retracting thc lazy-'tongs at .the same time. The paw-1 t holds the awning at any desired height. On depressing the arm 'w the pawl -is released from the ratchet, and this takes all restraint off from the lazy-tongs, and allows them to extend and lower the awning.

The above-described device for lowering and raising the awning may be placed and worked inside the house as well as outside.

Having thus described ourinveution, What we claim as new, and desire to secure by Letters Patent, is-

, 1. The combination ot' the lazy-tongs b, links e, and metalA bars a, constructed and operatingas and for the purpose specified. l 2. The arrangement of the shaft i, sheave k,cord vI, pulleys m n, drum o, shait p, ratchet s, pawlt, arm

lw, and case r, in the mannerand -for the purpose y specified.

Tile above specitication of our invention signed by us this 29th day of September', A. D. 1870. LOUIS G. SERT.

HHRISTIAN L. soHURin. Y

Witnesses:

SoLoN C. KEMON, Trios. D. D. DURAND.

Images