US 821704 A
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Description (OCR text may contain errors)
PATENTED MAY 29, 1906.
P. M. CONWAY.
APPLIGATION FILED Nov. 4, 1905.
l I a Attorneys.
` tonville, in the county of i --UITED STATES PATENT oEErcE. p
Speccation of Letters Patent.
`ratented. May 29, 1906.
Applicationiled November 4, 1905. Serial No. 285,910.
To @ZZ 'whom it may concern:
Beit known that I, FRANKIE M. CONWAY, a citizen of the United States, residing at Orof Minnesota,.have invente a new and useful Stool, of which the following is a specification.
This invention relates generally to stools, andmore particularly to `ene adapted for use by bookkeepers.
The object of theinvention is'in a novel and practical manner to obviate the necessity of a bookkeeper dismounting from his stool or seat in order to examine a book located at some distance from'the point at which he is working, whereby the fatigue attending such procedure is obviated and loss of time consequent thereto is prevented.
With the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a bookkeepers stool, as will behereinafter fully described and claimed.
In the accompanying drawings, forming a part of this specification, andin which like characters of reference indicate corresponding parts, Figure 1 is a view in perspective of a stool constructed in accordance with the present invention. Fig. 2 is a view in transverse section.
Referring to the drawings, 1 designates a platform which is supported by four le s 2, that are connected and rendered rigid by rungs or bars S-in this instance four in number-two being disposed transversely of the platform and two longitudinally thereof. In addition to strengthening the legs these rungs, more particularly the longitudinal ones, will serve as a foot-rest and will also enable the occupant of the chair or seat to lmove the same along the length of the platform,
thus to bring hlm' opposite a desired book.-
The essential features of the present invention reside in a novel form of ball-bearing track and anovel form of seat-support to engage the track.
The track 4 is constructed of any suitable metal and is approximately rectangular in lelevation, with rounded terminals. As shown in Fig. 1, the track is a continuous split tube,
the upper member of the track having the walls of its split spaced apart a sufficient distance to permit the balls 5 to be freely ex- Bi stone and State the support will be positively held posed to view, but to .be held against accidental removal from the track; As 'shown in Fig. 1, the walls of the split at each end of the track approach each other, for a purpose that will presently appear.-
As shown in Fig. 1, the platform is c onstructed in two sections which are held assembled by bolts or tie-,rods 6, this arrangement being necessary in order to permit the track to be assembled with the platform. This is secured by providing the terminals of thev platform with oriiices 7 and 8, through which the track projects, and when the two sections of the platform are assembled thetrack will positively be held against movement or accidental separation from the plat. l
form. The opposed faces of the platformsectionsare cut away to form a channel'9`,
the functionof which will presently appear; j
'75" beenmade,comprisesaplate 10,havin alontrack and thereby serve to prevent the support from having any horizontal or twisting motion relatively thereto. TheA support intermediate of its ends is provided with two downward-extending arms 13, which extend around the up er track member and are secured interme( iate of their ends by a rivet-or bolt 14, and thence extend downward and.
are fiared outward, as at 15, to embrace the lower member of the track, the clamlping members thus provided serving positive y to prevent any rocking movement of the supi port upon tle-e upper track member. The arms 13 and also the ears 12 may be integral with the seat-support, as shown, or be made as separate elements and secured thereto.
Projecting upward from the intermediate portion of the seat-support is a hollow stud or boss 16, which is ada ted to receive an ordinary pivot-pin carried) by a seat 17, which may be of the usual construction-abat is t0 say, an ordinary stool-top or it may be provided with a back, as shown. In the use of the seat it will only be necessary for the operator to push on one of the rungs 3 to effect shifting of the seat-support alon the un .er track member andne g .LP 7 y the support reaches the constricted portion of the split at each end of the said tra'ck member against any further lateral movement, so that any danger of tilting vof the seat will be positively prevented.
Having thus described the invention, what is claime is- 1. A seat comprisin a platform, a ballbearing track supporte thereby and having one member disposed above and the other below the platform, and a seat-support having a portion to engage with the balls of the upper member, and with guides to engage the lower member.
2. A seat comprising a platform, a ballbearing track supported thereby and having one of its members disposed above and the other below the platform, the balls in the upper member being exposed to view, and a seat-support having a portion' to engage the balls in the last-named member and provided with means to hold it against twisting movement relatively thereto.
3. A vseat comprising a platform, a ballbearing track supported thereby, one member of which is disposed above and the other below the platform, the balls of the upper track member beinfy exposed to view, a seatsupport having a ownward-extending portion to engage the balls of the upper member and ears to hold the support against twisting movement relatively-to the track, and arms carried by the support and having members to engage the lower track member.
4. A seat comprising a platform, an approximately elliptical ball-bearing track supported thereby, the balls of the upper 'member being exposed to view, and a seat-support having portions to engage respectively with the balls of the upper member and with the lower member.
FRANKIE M. CONWAY.
R. W. GREEN, H. D. KENYON.