US554980A

US554980A - Weather-strip

Info

Publication number: US554980A
Authority: US
Publication date: 1896-02-18
Anticipated expiration: 1913-02-18

Description

(No Model.)

E. T. BROWN. WEATHER STRIP.

8 Patented Feb. 18,1896.

JMA

UNiTnD STATES PATENT @Erica EFFINGI-IAM BROVN, OF GROTON, NEWT YORK.

WEATHER-STRIP.v

SPECIFICATION forming part of Letters Patent No. 554,980, dated February 18, 1896.

Application tiled JanuarylS, 1895. Serial No. 535,383. (No model.)

To a/ZZ whom t may con/cern:

Be it known that I, EFFINGHAM T. BROWN, a citizen of the United States, residing at Groton, in the county of Tompkins and State of New York, have invented certain new and useful Improvements in Teather-Strips; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to improve and to simplify the construction of weatherstrips which are adapted to be applied to the edges of doors, and which are constructed so that they will move upward away from the floor when the door is opened and downward into engagement with the floor or door-sill when the door is closed.

The invention consists of the means which will be hereinafter described, combined with the strip for effecting these movements.

In order that my invention may be understood, I have illustrated one form thereof in the accompanying drawings; but I do not wish to be understood as thereby limiting my invention to the speciiic embodiment thereof which I have chosen to illustrate it.

In the said drawings, Figurel is a perspective view of the lower portion of a door having my invention applied thereto. Fig. 2 is an elevation, on a larger scale than Fig. l, partly in section, of a weather-strip having my invention applied thereto. Fig. 3 is an end View of the strip as applied to a door. Fig. 4 is a perspective view of certain of the parts of the invention detached.

In the said drawings, A represents the door, B the casing in which it is hung, and C the floor or door-sill. y

D indicates in a general way the weatherstrip, which is shown as applied to the door near its lower edge. The strip may be of different forms, as my invention is adapted to be applied to or used in vcombination with weather-strips of different kinds. I prefer, however, that it should be of the general character shownthat is to say, consisting of a strip of material 2, substantially triangular in cross-section, which is hinged to the door near its upper larger end, while its apex or narrower end or edge is provided with a strip of felt or rubber 3. The strip is pref erably provided along its rear side with another piece of felt or rubber 14, which, when the strip is turned down, bears against the face of the door and prevents any upward passage of air back of the strip and between it and the door.

The weather-strip at best is unsightly, and I have sought to make my invention as inconspicuous as possible, and to that end I arrange and mount the principal parts which serve to move the strip within the body of the strip itself. To that end I form a chamber 5 in the strip at one end, and in this chamber or recess I mount a spring 4 and a plate or nut 6, the former bearing against the inner end of the chamber and the latter being securely held against movement by suitable means. This plate or nut has an aperture 12 through it, 'of suitable shape to fit the twisted portion or screw-cam part 7 of a sliding bar or bit, which bar is inserted into the chamber or hole 5 in the strip, its inner end being supported in the plate 6 and its outer end in a bracket 10, secured to the door at the end of the strip. The bar is free to slide in the bracket 10, but is prevented from rotatin g therein, for that purpose being squared, as at 9, throughout the portion which passes through the bracket, the latter being provided with a correspondingly-shaped aperture ll.

The end of the sliding bar bears against the spring 4, putting the latter under tension, and in order that the amount of longitudinal movement which this sliding bar may have imparted to it may be partly limited I enlarge a portion, as at 8, which enlarged portion coming into engagement with the bracket 10 serves as a stop to prevent the spring from forcing the bar too far outward.

13 is a contact-plate, preferably of metal, set into the casing B in position to be struck by the projecting end 9 of the sliding rod whenever the door is closed.

It will be understood that there can be no longitudinal movement of the plate 6 and bar 7 relative to each other without one or the other of these parts turning, by reason of the spiral twist given to the bar, and since the bar is prevented from turning the nut or plate 6 must turn, and as the strip is securely attached thereto the strip must turn with the plate, and this is what occurs. Vhen- ICO ever the door is opened the spring forces the sliding bar outward, and the twisted part 7 of the sliding bar is so formed as to cause the weather-strip to be turned up against the face of the door, as shown in Fig. l. Whenever the door is closed, the projecting end of the bar comes into engagement with the plate 13 and forces the bar into the chamber or hole in the strip, compressing the spring, and turning the plate and the weather-strip down into engagement with the iioor or sill.

The form of my invention will have to be modiiied somewhat from that shown to iit it to weather-strips of different kinds; but I do not deem it necessary to describe all of the modifications of the principle of my invention which may in practice be required.

It will be understood that the direction of the twist of the sliding bar will have to be changed should the door be hinged at the edge opposite to that shown in the drawings.

Another modification of my invention which I may describe consists in inverting the position of the sliding rod and of the positions of the plate (5 and bracket 10, the former being secured to the door and the latter to the strip. In this instance it will be the sliding bar which turns,while the nut or plate through which it passes is held stationary. I do not like this arrangement so well as that shown, as it is not so neat and the sliding bar has a twisting or turning motion upon the contactplate 13 while in engagement the iewitl1,wliich is not desirable.

My invention, as will be seen, necessitates the use of but few and simple parts, and these may be concealed almost entirely from view.

The invention may be easily and quickly applied at but small cost, and can be attached to weatherstrips already in use.

lVhile I prefer to arrange the parts which more the strip up and down within the body of the strip itself, they may be secured tothe face of the strip-as, for instance, the back side thereof-without departing from my invention.

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

l. In combination with a weatl1erst1ip, a sliding bar having a twisted portion and an angular portion, a plate or nut in which the twisted portion of the bar is mounted and may slide, and a bracket or bearing in which the angular portion of the bar may slide, these two bearings or supports being secured one to the strip and the other to the object to which the strip is applied, and a spring which tends to move the sliding bar in the direction of its length, substantially as set forth.

2. In combination with a door and aweatherstrip hinged thereto, a sliding bar provided with a twisted portion or screw-cam, a plate carried by the weather-strip in which the said part of the sliding bar is mounted, abracket secured to the door in which the bar is mount ed so as to be free to slide but not to turn, a spring which forces the sliding bar outward, and a contact-plate with which the end of the bar engages when the door is closed', substantially as set forth.

3. A weather-strip having a chamber in one end, a spring mounted in the said chamber, a sliding bar having a twisted or screw-cam portion, and an angular portion adapted to be inserted into the said chamber, and two bearings in which the said bar is mounted and is free to slide, one having an aperture fitting the screw/cam portion of the bar and the other the angular part thereof, and one being mounted in the said chamber and the other secured to the object to which the weather-strip is applied near the end of the strip, substantially as set forth.

4. The eombinationwith a deer,of aweatherstrip hinged thereto and provided near one end with a chamber 4, a spring arranged at the inner portion of said chamber, a plate G, mounted in the said chamber, a sliding bar adapted to be inserted into the said chamber and having a twisted portion, 7, which tits an aperture in the plate, (j, an angular portion, 9, which is adapted to project beyond the end of the weather-strip, and a stop portion between the parts 7 and 9, and a bracket, l0, secured to the door near the end of the weather-strip and having an aperture through which the angular portion of the sliding bar extends, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

EFFINGIIAM T. ROWN.

Witnesses:

B. R. WILLIAMS, B. D. NoBLns.

IOO