US133550A - Improvement in adjustable chairs - Google Patents
Improvement in adjustable chairs Download PDFInfo
- Publication number
- US133550A US133550A US133550DA US133550A US 133550 A US133550 A US 133550A US 133550D A US133550D A US 133550DA US 133550 A US133550 A US 133550A
- Authority
- US
- United States
- Prior art keywords
- chairs
- pillar
- improvement
- adjustable
- legs
- 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
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/34—Chairs or stools with vertically-adjustable seats with pins coacting with holes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/28—Chairs or stools with vertically-adjustable seats with clamps acting on vertical rods
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
- A47D1/002—Children's chairs adjustable
- A47D1/004—Children's chairs adjustable in height
Definitions
- ROBERT THOMPSON 0F BEAVER FALLS, PENNSYLVANIA.
- My invention relates to improvements in the construction of chairs or seats; and consists in so constructing the legs or supports of the seat as that the latter may be adjusted to any required height from the floor and thereby be made to conform to the various statures of children and others using the seats or chairs.
- Figure 1 is a side elevation of my improved chair; and Fig. 2 is a cross-section of the chair-standard, showing mechanism for adjustment.
- A represents the chair or seat, provided with a back, a, of the usual or, it may be, of any convenient form desired.
- the chair is supported by the adjustable legs (J and a hollow cylindrical Or flat-sided pillar, B, which is provided with a flat bearing-flange, b, to which the seatbottom is secured. It is also formed with vertical slots b extending from the bottom to near the top of the pillar.
- the adjustable legs 0 are provided with flat plates 0 having projecting tongues c, which are inserted into the slots 1) of the pillar, so that the legs can slide up and down on the pillar to adjust the height of the seat.
- D is an annular stay-plate placed inside of the pillar B, to which the legs are secured by bolts d which pass through the legplates 0 and slots 1) of the pillar. By loosening these boltsd the legs can be adjusted up or down, and by again tightening up, the seatis secured in the desired position.
- E is a brace extending from the pillar B to the back of the seatfor the purpose of strengthening the chair.
- This device can be applied with beneficial results to a variety of chairs and seats, but is intended more particularly for use in schools, where a uniform height of seats is unsuited to .varying heights of the children.
- What I claim as my invention is The seat or chair A, in combination with a slotted pillar, B, and adjustable legs 0, plate D, and bolts d, constructed and operated in the manner and for the purpose substantially as set forth.
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- Pyridine Compounds (AREA)
Description
R.A.TH0MPs0N.
Adjustable Chairs.
iNo.133,550. PmemedDem3,w?2
Wil-Ibe 5 s 5.
UNITED STATES PATENT OFFIOE.
ROBERT THOMPSON, 0F BEAVER FALLS, PENNSYLVANIA.
IMPROVEMENT IN ADJUSTABLE CHAIRS.
Specification forming part of Letters Patent No. 133,550, dated December 3, 1872.
To all whom it may concern:
Be it known that I, ROBERT A. THOMPSON, of Beaver Falls, in the county of Beaver and State of Pennsylvania, have invented certain Improvements in Chairs, of which the following is a specification: A I
My invention relates to improvements in the construction of chairs or seats; and consists in so constructing the legs or supports of the seat as that the latter may be adjusted to any required height from the floor and thereby be made to conform to the various statures of children and others using the seats or chairs.
In the accompanying drawing, Figure 1 is a side elevation of my improved chair; and Fig. 2 is a cross-section of the chair-standard, showing mechanism for adjustment.
A represents the chair or seat, provided with a back, a, of the usual or, it may be, of any convenient form desired. The chair is supported by the adjustable legs (J and a hollow cylindrical Or flat-sided pillar, B, which is provided with a flat bearing-flange, b, to which the seatbottom is secured. It is also formed with vertical slots b extending from the bottom to near the top of the pillar. The adjustable legs 0 are provided with flat plates 0 having projecting tongues c, which are inserted into the slots 1) of the pillar, so that the legs can slide up and down on the pillar to adjust the height of the seat. D is an annular stay-plate placed inside of the pillar B, to which the legs are secured by bolts d which pass through the legplates 0 and slots 1) of the pillar. By loosening these boltsd the legs can be adjusted up or down, and by again tightening up, the seatis secured in the desired position. E is a brace extending from the pillar B to the back of the seatfor the purpose of strengthening the chair.
This device can be applied with beneficial results to a variety of chairs and seats, but is intended more particularly for use in schools, where a uniform height of seats is unsuited to .varying heights of the children.
What I claim as my invention is The seat or chair A, in combination with a slotted pillar, B, and adjustable legs 0, plate D, and bolts d, constructed and operated in the manner and for the purpose substantially as set forth.
R. A. THOMPSON. Witnesses:
J. W. FORBES, M. H. SHANNON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US133550A true US133550A (en) | 1872-12-03 |
Family
ID=2202966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US133550D Expired - Lifetime US133550A (en) | Improvement in adjustable chairs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US133550A (en) |
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0
- US US133550D patent/US133550A/en not_active Expired - Lifetime
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