Bookcase.

Application filed December 20, 1904. Serial No. 237,603.

To all whom, it may concern:

Be it known that I, Henry E. Hubbell, a citizen of the United States, residing at Johnson, in the county of Lamoille and State of 5 Vermont, have made certain new and useful Improvements in Bookcases, of which the following is a specification.

My invention is an improvement in cases adapted for holding books or merchandise or io the like; and the invention consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a sectional elevation of a case embodying my invention. 15 Fig. 2 is a cross-section on about line 2 2 of Fig. 1, and Fig. 3 is a detail perspective view showing a portion of the upright and one of the bearings thereon for the shelves.

In carrying out my invention I provide a 2o base A, on which is mounted the uprighfor standard B, made of suitable length to extend through the main frame of the case and to support the same at its upper end. The main frame of the case comprises, as shown, a bot²5 tom plate C, a top plate D, and connections E between said plates C and I). These connections may preferably be in the form of rods, as shown. The upper plate D is provided at its center with a bearing I)', resting 3° on the upper end of the upright B, and the bottom plate C is supported on ball-bearings C' from the base A, so the main frame can be readily revolved when desired. Shelves F are supported on the shaft B and are pref35 erably arranged for adjustment up and down, so they may be set to different positions relatively. I prefer to adjust the shelves independently and to secure this adjustment by the means shown, which .includes supports 4° G, encircling and movable longitudinally along the upright B and having means for securing them in suitable adjustment. This is shown as comprising ratchet-teeth B' in the upright B and pawls G', carried by the shelf45 supports G and engaging with the ratchets B' to hold the shelves in different adjustments. By this means the shelves may be adjusted up and down independently and may be supported in any desired position. In their up5° per ends the supports G are provided with races for balls y, so the shelves are supported by ball-bearings to facilitate their ready turning in the use of the invention. It will thus be noticed I provide a main frame which 55 can be revolved about the central upright and also shelves which can be revolved independently of each other and of the main frame upon the central upright and can be adjusted up and down along the upright and held in any suitable position. —

In connection with the shelves and the main frame I provide a door, which preferably consists of two semicylindrical sections H and I, the latter being slightly smaller than the former and arranged to turn therein when de- 65 sired. These doors revolve within circular flanges D⁸ and C⁸, projecting, respectively, from the under and upper sides of the plates D and C and excluding from view and protecting the opposite ends of the door-sections. 7° The door-sections, which may be provided with curved plates of glass to expose the contents of the case or may be constructed of other suitable material, as desired, are supported by arms H' and Γ, connected at their 75 outer ends with their respective door-sections and having at their inner ends bearing portions mounted on ball-bearings. As shown, balls J are arranged in a suitable race J' below the bearing I⁸ at the inner end of the 8° arm I', and the upper side of said bearing T is provided with a ball-race receiving balls, upon which rests the bearing H⁸ at the inner end of the arm H'. This describes the construction for supporting the inner ends of the 85 upper arms IT and IF. The inner ends of the lower arms supporting the door-section are similarly constructed, it being understood that the door-supporting arms are provided at their inner ends with bearing-rings fitting 9° around the upright B, one above the other, balls being interposed between the said bearings and below the lower one of the said bearings in both the upper and lower construction for supporting the door-sections. 95