US1442956A

US1442956A - Drop awning

Info

Publication number: US1442956A
Application number: US543920A
Authority: US
Inventors: John H Lockhart
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-03-15
Filing date: 1922-03-15
Publication date: 1923-01-23
Anticipated expiration: 1940-01-23

Description

Jan.. *23, 1923.

DROP AWNING.

FILED MAR. 15. 1922.

WITNESS www?? 1,442,956. J. H. LOCKHART.

JOHN H. JLUCKHART, ROSS TUWNSJEP, PENNSYLVANJIA.

DROP AWNING.

llippl-ication tiled March l5, 1922. Serial llo. 543,920).

f( 1o a-ZZ 'whom u may concern Be it known that ll, donn l-l.. Loonnaufr, `a citizen of the United States, and residing in the township of liess, in the county of Allegheny and State of Pennsylvania, have invented. or discovered the new, useful, and improved Drop Awnings, of which the following is a specication.

lll/ly invention consists in certain new and useful improvements in drop awnings, and

it more especially relates to the manner of rigging. the same. render the awning easier to raise, to prevent l cutting and tearing of the cloth by its contact with pulleys or grommets, and to prevent the ropeswearing the cloth and causing it to split along the lines of wear.

The usual method of rigging awnings is to attach ropes to the front-,rodand lead the j same up through pulleys o-r grommets located under the head of the awning. rl`he awning is raised by pulling the ropes through the pulleys or grommets, and the cloth tends to bunch near the head and very frequently gets caught `in the pulleys or grommets and cuts and tears. rlFhis is especially true when the awning is wet. The friction of the rope against the cloth wears the same, and in time the cloth splits along the lines of wear. Sometimes the cloth is reinforced by sewing strips along the line of wear, but this adds to the cost and also to the weight of the awning. lt also complicates laundrying the awnings; and when the awnings become faded and itbe desired to turn the awning wrong side out, the rein forcing strips must be ripped off and sewed on the other side. In the case of relatively large awings, it requires considerable power to raise the same, especially when wet, and

as the result the awnings are permitted to remain lowered when it would be more comfortable and pleasant to have them raised. As domestic awnings are frequently manipul lated by women and children, the amountof strength required to raise the awnings is an im ortant consideration.

n the case of business and hotel awnings, where the original cost is not such a consideration, the awning is sometimes provided with rows of rings or pulleys through which the lifting ropes are run, or the cloth is provided with rows of apertures reinforced with metal through which the ropes are threaded. These expediente somewhat facilitate the he purpose which li have in view is to.

raising of the awnings, but add so greatly to their cost as to be practically prohibitive for domestic use. rthey also interfere seriously with the laundrying and turning of the awnl ings, and therefore shorten their usefulness.

in my improved awning lf'have adopted a novel method of rigging which adds butvery slightly to the cost, but reduces the amount of power required to raise the awning by almost one half. lt also prevents the lifting ropes wearing the cloth, and renders impossible the bunching and catching and tearing of the cloth in pulleys.

In the practice of my invention, the head of the awning is secured to the building in the usual manner, and the bottom is provided with the usual bottom rod contained in a hem, and held extended by the side rods whose inner ends are pivotally attached to the building. The ends of the lifting ropes are attached to the building under the head of the awning and led down under the cloth to the bottom rod where said ropes are led down through pulleys attached to the bottom rods. rlhese pulleys. are preferably `unswivelled to maintain their position with their aires horizontal to prevent the ropes twisting. The ropes are then led back up under the cloth but spaced below the same to swivel pulleys attached to the building, and all of the raising ropes except that atone side are brought over to said side and then down `over a multiple, swivel pulley, together with the said side rope into convenient reach of the operator.

ln the accompanying drawings, Fig. l is a frontelevation of my improved awning shown dropped, and the cloth partially cut away at one side to showthe rigging; Fig. 2 is a bottom or inverted plan view of the same, the bottom pulleys being turned 'somewhat out of their real position to more clearly show the ropes passing overql the same, and Fig. 3 is a side view with the end piece of the awning omitted to show the rigging.

The following is a detailed description of the drawings.

A represents the front boxing or beam of a porch roof and B the two posts or columns. Cie the awning proper, usually of canvas cloth. The triangular end pieces with which the awning is usually provided are omitted for the sake of clearness. The cloth C is attached to the porch` at the top in any convenient manner. Thus l show eyes l of the awning engaging hooks 2 on the porch.

llO

The bottom of the awning is provided with the usual hem 3 through which is inserted the bottom rod D, usually a small iron pipe and to whose ends are rigidly attached the side rods l@ pivotally connected to the posts B. This is the usual manner of mounting a drop awning.

The method of rigging the awning is as follows: x

'F represents a plurality of screw eyes firmly fixed to the building under the head of the awning, and in number equal to the number of lifting ropes to be provided. Thus I have shown three, the usual number of said ropes, G, G and G2, one at each yside and one in the center of the awning. The end of each rope is secured to its proper screw eye F, and the ropes are led down under'v the awning and down through the pulleys H, H and H2, respectively, which are secured to the bottom rod I). These Vpulleys are preferably of the rigid or nonswivel type, and are preferably secured to the bottom rod by wire wrapped in such a manner that the pulleys are held in position with their axes horizontal. In Fig. 2, as already stated, these bottom pulleys are Aturned part way around from their real positions to show the upper and lower flights of the ropes. The ropes G, G and G2 are then led back -up under the awning, but with their second flights spaced below their first or upper flights, to the swive-lled pulleys I, IHand I2, respectively which are attached to the buildinof somewhat below the eyes F.

The ropes and G are then led horizontally overy to and through a double, s'wivelled pulley J attached to the building along side of the pulley I2, and the ends of the three ropes are then led down and se` cured in any convenient ina-nner within reach of the operator. v

l/Vhen it is desired to raise the awnings, a pull is 'exerted on the last mentioned ends of the ropes, causing the lower flights of the ropes to travel from the bottom pulleys H,

kH and H2 to the top pulleys I, I and I2.

thus shortening the upper flights of the ropes immediately beneath the cloth, and thereby elevating the bottom rod and raising` the awning.

It will be observed that the cloth is thus folded up along the upper flights of the ropes but there is no travel or movement of f said upper flights, as is the case in an awn ing rigged in the usual manner. The result is that there is no appreciable friction or wear on the cloth which folds up easily. Also there are no pulleys or grommets the head of the awning into which the cloth is drawn by traveling ropes as in the case of an awning rigged in the usual manner.

Experience and careful tests with my improved awning` has shown a reduction of almost lifty percent in the power required to raise the awning, and that even an awning saturated with rain may be raised with ease. The spacing apart of the upper and lower flights of the pull ropes prevents the two flights becoming tangled or twisted lo gether.

The life of the awning is thus greatly prolonged, as awnings usually become useless by splitting along the lines of the riggingr ropes.

l/Vhat I desire to claim is:-

l. In combination with a drop awning secured at its head to a. support and provided with a bottom rod, a plurality ol' pulleys secured to said bottom rod, in spaced relation to each other an equal number of pulleys attached to said support under the head of said awning, and each substantially alined with one of said first named pulleys and an equal number of lifting ropes having their ends attached to said support under the head of the awning, one of said ropes being adjacent to each of said second named pulleys, and led down under the awning over said lirst named pulleys and thence up under said awning and over said second. named pulleys.

2. In combination with a drop awning secured at its head to a support and previded with a bottom rod` a luralit i of nonswivel pulleys attached to said bottom rod with their axes horizontally disposed and said pulleys being in spaced relation to each other, an equal number of swivel pulleys attached to said support under the head of said awning, one of said swivel pulleys bcing substantially alined with one of said non-swivel pulleys, and an equal number of lifting ropes having their ends atached to said support under the head of the awning and led down under the awning and down through said first named pulleys and thence up under said awning and through said swivel pulleys.

3. In combination with a drop awningr secured at its head to a support and provided with a bottom rod, a plurality of nonswivel pulleys attached to said bottom rod with their axes horizontally disposed, and said pulleys beingin spaced relation to each other an equal number of swivel pulleys attached to said support under the head of said awning, one of said swivel pulleys being substantially alined with each of said non-swivel pulleys, and an equal ,number of lifting ropes having their ends attached to said support under the head of the awning but above said swivel pulleys, said ropes being led down under said awning and down through said lirst named pulleys and then up under said awning and through said swivel pulleys.

4. In combination with a drop awning` secured at its top to a support and provided with a botom rod and two side rods attached lOO at their front ends to the ends ot said bottom rod and having their rear ends pivotally attached to said support, a plurality of lifting ropes having their ends attached to the support under the head of the avvning, an equal number of pulleys attached to said bottom rod, and an equal number of pulleys attached to the support under the head of the awning, said ropes being led down under the awning and over said irst named pulleys and thence up under the awning over said second named pulleys5 substantially as described.

5. ln combination with a drop awning' secured at its top to a support and provided with a botoin rod and tWo side rods attached at their front ends to the ends et said botom rod and having their rear ends pivotally attached to said support, a plurality or" lifting rope-s having their ends attached to the support under the head ot' the awning, an equal number of non-swivel pulleys attached to said bottom rod, and an equal number of swivel pulleys attached to the support under the head oit the awning, said ropes being` led down under thle awning and over the non-swivel pulleys and thence up under the awning over the swivel pulleys, substantially `as described.

Signed at lljittsburgh7 Pa., this 11th day of March, 1922.

JOHN H. LOCKHART.