US 1243750 A
Description (OCR text may contain errors)
DANIEL amines, or meantime,"wesr'viseraiaf ADJUsTABLE TABLE.
Appl'icatioii fild March 17, 1916. Sean m. 84525] To aZZ whom it may concern." 7
Be it known that 1, Damien B. MILLER, a
citizen of the UnitedStates of America,"and
residentfof Wheeling, county of Ohio, and
State of est Virginia, have invented cer tain new anduseful Improvements inIAdjustable'Tables,of which the following is a specification. I
This invention relates broadly to tables, and it has for its object to providea table having means whereby its top be readily adjusted to any desired elevationf A further object is to provide conveniently operated means adapted'for.embodi ment in tables, work-benches, and the like,
whereby the top, or working surface, thereof may be raised or lowered to any desired extent within appropriate limits to accommodate the convenience of the user.
lVith these and other objects in view, the invention resides in the features of construction, arrangement of parts and combinations of elements which will hereinafter be.
exemplified, reference being had to the accoinpanylng drawlngs, in which Figure 1 1s a horizontal sectlon of a table embodyingmy invention, said section being taken at a point a short distance below the table top;
Fig. 2 is a vertical section taken on line 22, Fig. 1; and
Fig. 3 is an end elevation.
Referring to said drawings, in which like designating characters distinguish like parts throughout the several views A and B indicate generally the upper and lower sections, respectively, of a two-section table constructed in accordance with my in vent-ion. The lower section is of rectangular form and comprises a plurality of upright legs 1 joined in any suitable manner, as by the plate-like connecting panels 2. Each of said legs is provided with a vertical guide groove 8, the legs at opposite sides of said section B having said grooves formed in their opposing faces.
The upper table section A comprises a table top 4 mounted upon the upper ends of vertical rack-bars 5 which are slidably received within said guide grooves 3.
Interposed between the legs 1 at each of the opposite ends of the table-section Bis a suitable transverse support or casting 6 havinga pair of bearings 7, and journaled in said hearings at opposite ends of said see not Mem henzisian parallel, longitudi nally disposed shaftsS and 9. Fixed on each ofthe opposite ends of the shafts so as to mesh with the teeth of the ad acent raclp; bar. 155,21 gear. wheel 10, and mounted .on each of the opposite ends of the shaft 9st; as to Specificationof Leaner-(item. P tented 015131231, 19117."
mesh with the teeth ofthe adjacent rack barfand alsoniesh withthe adjacent gearflQ isa earwheel 11. One of said shafts, as
the shaft 9, has one end projected outward through the adjacent panel 2 and has a handecrank 12 lined thereon whereby said] shaftm'a y berotat ed for effecting adjustment of the elevation,ofthetable S8Ct1011.A.-.
As is apparent, rotation of said shaft 9 acts throu h the ear wheels 11 to move the ad- 1 g c jacent rack bars in their respective guide grooves 8, and also through gear wheels 10 to correspondingly move the oppositely dis posed rack-bars in their grooves, effecting the lowering or raising of said table section A, according to the direction of rotation of said shaft 9.
A pin or stud 13 is vertically adjustable in a suitable slot 14 provided in one of the end panels 2 at a point closely adjacent to one of the rack-bars, said pin being designed to be lowered to a point where it is received between the teeth of said rack-bar and the coacting gear, as shown in Fig. 2, for locking the latter against rearward rotation. As is obvious, the locking pin is adjusted to locking position when the table-section A has been elevated to a desired point, thus preventing the lowering movement which would otherwise result due to theweight of said section being sustained by the gear wheels.
For concealing the various parts of the adjusting mechanism from view, a depend ing apron or shield consisting of vertically disposed side and end plates 15 is provided, each of said plates being carried by the table top 4 in a position wherein its inner face is substantially coincident with the outer faces of the adjacent panel 2 of table-section B. Further, each plate 15 is of such vertical width that its lower edge will slightly overlap the adjacent panel 2 when the section A has been raised to the limit of-its elevating movement.
Vertical slots 16 and 17 are provided in one end-plate 15 in which the shaft 9 and outwardly projecting knob or handle-portion 18 of pin 13 are respectively received,
such slots permitting adjustment of the table without interference.
What is claimed is 1. In a table, a lower section having pairs of legs grooved on their confronting sides with the grooves extending through said sides, panels connecting the tops of the legs, one of the panels having a vertical slot, an upper section having pairs of racks depending therefrom and sliding in said respective grooves, a pair of transverse supports connected at their ends to the respective pairs of legs at one side of the grooves of said legs, a pair of shafts journaled in said supports and having intermeshing gears which latter also mesh with the respective racks, means to rotate one of the shafts, an end apron secured to the upper section and having vertical slots one of which latter receives the end of the shaft having said rotating means, the other slot being in register with the panel slot, and means operating in the other slot and in the slot of the panel to look the gear on the adjacent end of the other shaft.
2.111 a table, a lower section having pairs of legs formed with U-shaped grooves on their inner sides, an upper section havmg rack bars of rectangular cross-section secured thereto and sliding in said grooves, a
In testimony whereof, I afliX my signature in presence of two subscribing witnesses.
DANIEL B. MILLER.
H. E. DUNLAP, W. F. KEEFER.
Genies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C.