US236616A - Adjustable scaffold-clamp - Google Patents
Adjustable scaffold-clamp Download PDFInfo
- Publication number
- US236616A US236616A US236616DA US236616A US 236616 A US236616 A US 236616A US 236616D A US236616D A US 236616DA US 236616 A US236616 A US 236616A
- Authority
- US
- United States
- Prior art keywords
- clamp
- adjustable scaffold
- scaffold
- adjustable
- palmer
- 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
- 210000000078 claw Anatomy 0.000 description 4
- 241000929631 Stenoterommata palmar Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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
- A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
- A47B57/30—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports
- A47B57/54—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of clamping means, e.g. with sliding bolts or sliding wedges
- A47B57/56—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of clamping means, e.g. with sliding bolts or sliding wedges the shelf supports being cantilever brackets
Definitions
- This invention has relation to adjustable scaffold-clamps; and it consists in the improved features of construction and combination hereinafterfully described, and particularly pointed out in the claim.
- A designates a section of one of the uprights of a scaffold.
- D designates a claw having dog I), guard o, and straps or arms a a, formed in one piece with the claw, and perforated at a a for the reception of a through-bolt, e, by which the clamp is adjustably secured to the upright A.
Landscapes
- Ladders (AREA)
Description
(No Model.)
- B. s. PALMER.
Adjustable Scaffold Clamp. N0- 16- Patented Jan. I1, 1881.
WITNES SES \NVENTOF %O&M 4 W 77WM ATTORNEY'.
N.PErERs. PKOTO-LITMOGRAFNER, WASHIRBTPN, D C.
UNITED STATES PATENT Fries,
ERASTUS S. PALMER, OF FARIBAULT, MINNESOTA.
ADJUSTABLE SCAFFOLD-CLAM P.
SPECIFICATION formingpart of Letters Patent No. 236,616, dated January 11, 1881.
Application filed June 12, 1880.
To all whom it may concern:
Be it known that I, ERASIUS S. PALMER, of Faribault, in the county of Rice and State of Minnesota, have invented certain new and useful Improvements in Adjustable Scaffold- Glamps; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, in which the figure is a perspective view of an adjustable scaffoldclamp embodying my improvements.
This invention has relation to adjustable scaffold-clamps; and it consists in the improved features of construction and combination hereinafterfully described, and particularly pointed out in the claim.
Referring by letter to the accompanying drawing, A designates a section of one of the uprights of a scaffold.
D designates a claw having dog I), guard o, and straps or arms a a, formed in one piece with the claw, and perforated at a a for the reception of a through-bolt, e, by which the clamp is adjustably secured to the upright A.
D designates a joist, one end of which rests upon the clamp 0, between the guard c and the upright A. W'eight upon joist D causes the clamp to vibrate on the bolt 0 as a pivotal point and the (log I) to bite the upright A, and
(No model.)
this construction there can be no tendency of the supporting bracket or claw to swing laterally. Absolute security is thus afforded in this class of clamps.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is
In an adjustable scaffold-clamp, the claw D,
having dog I), guard c, and prolonged arms a a, perforated at a a, made in one piece, in combination with the removable bolt 0, substantially as and for the purposes set forth.
In testimony that I claim the above 1 have hereunto subscribed my namein the presence of two witnesses.
ERASTUS S. PALMER. Witnesses:
JOHN M. HUNTER, JOSEPH 0. Mom).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US236616A true US236616A (en) | 1881-01-11 |
Family
ID=2305976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US236616D Expired - Lifetime US236616A (en) | Adjustable scaffold-clamp |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US236616A (en) |
-
0
- US US236616D patent/US236616A/en not_active Expired - Lifetime
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