US215731A - Improvement in easels - Google Patents
Improvement in easels Download PDFInfo
- Publication number
- US215731A US215731A US215731DA US215731A US 215731 A US215731 A US 215731A US 215731D A US215731D A US 215731DA US 215731 A US215731 A US 215731A
- Authority
- US
- United States
- Prior art keywords
- improvement
- easels
- shelf
- frost
- clasp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 2
- 230000004301 light adaptation Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/04—Easels or stands for blackboards or the like
- A47B97/08—Easels or stands for blackboards or the like foldable
Definitions
- FIG. 1 is a view of an easel with my iinprovement.
- Fig. 2 is a front View
- Fig. 3 a side View
- Fig et a rear view
- Fig. 5 is a section of the frame above the upper bar.
- My invention is an improvement upon that patented to me June 5, 187 7 No. 191,579 5 and consists in a different adaptation, construction, and application of that invention, so as to make it with fewer parts and at much less cost. It is to be applied to the central post of an easel, the front frame of which is constructed with three upright pieces and two cross-bars.
- A is the central upright post, to which my contrivance is applied, (the uprights B B and cross-bars C and D forming the remainder of the frame,) and it has grooves a on each side,
- E is a clasp, trmly secured to the shelf ⁇ G, having lugs e e at its upper and lower ends, which tit into and slide in the grooves a.
- H is a pawl, having a weighted handle, and it is journaled to the clasp E beneath the shelf.
- the weight of the handle causes the pawl to engage with the notches and hold it in position; and to lower the shelf the pawl is disengaged by raising the handle; and in whatever position the shelf may be set the clasp E prevents it from Wabbling.
Description
F. S. FROST.
Easel. i No. 215,731. Patented May 27, 18T-9.y
g @l n M Q N UNITED STATES PATENT C )FFICE FRANCIS S. FROST, OF ARLINGTON, MASSACHUSETTS.
IMPROVEMENT |N EASELS,V
Specification forming part of Letters Patent No. 215,731, dated May 27, 1879; application led January 18, 1879.
I To all whom it may concern:
Be it known that I, FRANCIS S. FROST, of Arlington, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Easels, which improvement is fully setA forth in the following specification and accompanying drawings, in which- Figure l is a view of an easel with my iinprovement. Fig. 2 is a front View, Fig. 3 a side View, and Fig et a rear view, of my improvement. Fig. 5 is a section of the frame above the upper bar.
My invention is an improvement upon that patented to me June 5, 187 7 No. 191,579 5 and consists in a different adaptation, construction, and application of that invention, so as to make it with fewer parts and at much less cost. It is to be applied to the central post of an easel, the front frame of which is constructed with three upright pieces and two cross-bars.
A is the central upright post, to which my contrivance is applied, (the uprights B B and cross-bars C and D forming the remainder of the frame,) and it has grooves a on each side,
as shown in Fig. 5, and notches b down the center of its front at intervals, to form a ratchet. I'prefer to make the ratchet in this watT for cheapness.
E is a clasp, trmly secured to the shelf` G, having lugs e e at its upper and lower ends, which tit into and slide in the grooves a. H is a pawl, having a weighted handle, and it is journaled to the clasp E beneath the shelf.
On raising the shelf, the weight of the handle causes the pawl to engage with the notches and hold it in position; and to lower the shelf the pawl is disengaged by raising the handle; and in whatever position the shelf may be set the clasp E prevents it from Wabbling.
What I claim as my invention is- The shelf-supporting clasp E, provided at its top and bottom with the side lugs e e, in combination with the center post A, having the grooves a a and the ratchet b therein, all constructed and adapted to operate substantially as described.
FRANCIS S. FROST.
Witnesses:
OHAs. F. SLEEPER, ELLA A. LAWRENCE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US215731A true US215731A (en) | 1879-05-27 |
Family
ID=2285134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US215731D Expired - Lifetime US215731A (en) | Improvement in easels |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US215731A (en) |
-
0
- US US215731D patent/US215731A/en not_active Expired - Lifetime
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