US464030A

US464030A - Map-case

Info

Publication number: US464030A
Authority: US
Publication date: 1891-12-01
Anticipated expiration: 1908-12-01

Description

(No Model.)`

L. LUDGIN.

MAP CASE.

No. 464,030. Patented Deo. 1, 1891 illlllllllllll|llllIIIIIIIHIIIIIIIIIIIIIII II lllllllll'lllillllllllll UNITED STATES @PATENT @rricng LOUIs LUDGIN, or OIIIOAGO, ILLINOIs.

MAP-CASE.

SPECIFICATION forming pere ef Lettere Patent Ne. 464,030, dated December 1', 11391.Y

Application filed December 29, 1890.l Serial No. 376,116. (No model.)

To all whom t may concern:

Be it known. that I, LOUIS LUDGIN, a subject of the Russian Emperor, residing at C-hicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Map-Cases, of which the following is a specification.

My invention relates to mapcases, or cases for charts, maps, scrolls, and the like, designed to be secured to the wall ot' a room tojprotect the map or chart fromdust and exposure, and is especially adapted to that class of map-cases which are intended to receive but one map, which is hung within the caso on an autolnatic spring-roller; and it consists in certain peculiarities of construction and novel arrangement of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed. j

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe it, referring to the accompanying drawings, in which- Figure l is a perspective View of my case as it appears when ready to be secured to the Wall, with the map in place and partially withdrawn. Fig. 2 is an interior view of one of the end pieces, showing the lid open and in dotted lines. Figs. 3 and 4 are front views of a portion of each end of the case. Figs. 5 and 6 are end views of one of the pieces. Figs. 7, 8, and 9 are detailviews of securing devices.

Similar letters refer to like parts throughout the dilferent views of the drawings.

A represents the base or main piece of the casing, to which is secured the end pieces B and C. Near each end of the piece A and at the rear thereof is formed a vertical groove a, over which grooves projects the upper end of plate b, having an eye b and openings b2, through which are passed screws or similar means for securing the plates to the rear of the base A, the eye b being adapted to iit over a nail in the wall when it is desired to hang Y the case. Instead of using this plate, I may sometimes secure the case to the wall by means of screws through the piece A, as shown in Fig. 3.

The end pieces B and C are made, as shown, with their front inside portions c circular, so that the .lid or cover D, which is made in the form of a half-tube with each end closed,will fit snugly over the circular portion c of the end pieces B C and rest on the straight portion c or step thereof, thus making a close joint and avoiding the admission of dust. As seen in Figs. l and 6, the cover D is preferably hinged at the top to a portion of the casing, which is secured at each end to the end pieces B and C.

The inner surface of the circular portion c of the end piece B is formed or provided with a groove E, which may be of any suitable width and depth, but extending from the outer edge of the piece B to near its center. This groove or depression may also be either straight or curved, as shown, and I may or may not use an adjusting or securing plate CZ cl3 d4 of vthe requisite form to -fit either a curved or straight groove or depression.

lVhen it is desired to use either of the plates CZ cl3 d4, the two first of which are formed near their inner ends with a hole d for the reception and retention of the projection on the end of the map-roller and near the other end with an Opening d2,into which the nail of the thumb may be inserted when it is desired to withdraw the plate, the groove F. or depression is formed somewhat wider and preferably with beveled edges, as shown at f in Fig. 4 in order that the plate may be slid in the groove and there retained by reason of the dovetail joint.

In order to provide a more secure bearing for the end of the map-roller on the plate d4, I sometimes provide the hole d with hollow projection g, as shown in Fig. 10,into which the projection on the roller tits.

In Fig. 2 I have shown the opposite end piece C, which is similar in shape and size to piece B, but has secured toits inner surface a disk or metal plate h, provided with aquadrilateral hole h at its center for the reception of a similarly-shaped projection on the end of the map-holder.

Fig. 6 illustrates a modification of the case, which in this instance is of irregular shape and has its lid or cover hinged near the center of the case, but extending only a part of the way down on the end pieces, yet securely closing the case. From the above description it will be readily understood that by using my case I am enabled to easily insert or re- IOO move the map therefrom Without taking the case from the Wall. To insert the map, (which is mounted on the ordinary spring-roller for windoW-shades,) the projection having the square form is inserted into the opening 7L in the plate h, secured to the piece C, and the projection on the other end of the roller is placed in the hole cl or hollow projection g of the plate d4, when it is slid into the groove, when the map is ready for use and may be exhibited by drawing` it out of the case.

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

forth.

LOUIS LUDGIN. [n s] Witnesses:

C. C. TILLMAN, 1%.,SILER.