US637437A - Safety-tread. - Google Patents

Safety-tread. Download PDF

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Publication number
US637437A
US637437A US71163499A US1899711634A US637437A US 637437 A US637437 A US 637437A US 71163499 A US71163499 A US 71163499A US 1899711634 A US1899711634 A US 1899711634A US 637437 A US637437 A US 637437A
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United States
Prior art keywords
tread
plate
safety
lead
edges
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Expired - Lifetime
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US71163499A
Inventor
Frank Wear
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Priority to US71163499A priority Critical patent/US637437A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/16—Surfaces thereof; Protecting means for edges or corners thereof

Definitions

  • the tread-plate thus obtained,havin g disks of lead elevated above the body of the plate and held firmly in position by the steel rim formed by the turned-up edges of the plate, acts as a safeguard against slipping and may be fastened to the surface of stair treads, platforms, sidewalks, carriage steps, or other places Where a firm footing is desired.
  • Figure l is a plan View of a portion of a tread-plate.
  • Fig. 2 is a sectional view taken at line A Bof Fig. 1 and shows the form into which the edges of the plate are pressed up, as shown at O, and the lead filling at D.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)

Description

No. 637,437. Patented Nov. 2|, I899.
r. WEAR.
SAFETY TBEAD.
(Application filed Apr. 8, 1899.)
(No- Model.) v
UNITED STATES PATENT QFFICEQ FRANK WVEAR, OF MEDFORD, MASSACHUSETTS.
SAFETY-TREAD.
SPECIFICATION forming part of Letters Patent N 0. 637,437, dated November 21, 1899,
Application filed April 3 1899. Serial No. 711 ,634. (No model.)
the edges of the plate around the holes up-' ward and outward,and then by filling the holes with lead flush with the bottom of the plate and level with topof turned-up edges. The tread-plate thus obtained,havin g disks of lead elevated above the body of the plate and held firmly in position by the steel rim formed by the turned-up edges of the plate, acts as a safeguard against slipping and may be fastened to the surface of stair treads, platforms, sidewalks, carriage steps, or other places Where a firm footing is desired.
Figure l is a plan View of a portion of a tread-plate. Fig. 2 is a sectional view taken at line A Bof Fig. 1 and shows the form into which the edges of the plate are pressed up, as shown at O, and the lead filling at D.
I am aware that the combination of lead and iron or steel has been used for this purpose, and I therefore do not claim such a combination, broadly.
' What I do claim, and desire to secure by Letters Patent of the United States, is
The combination of a plate of iron or steel perforated and pressed into shape and filled with lead, as herein described and for the purposes specified.
In testimony whereof I have affixed my signature in presence of two witnesses.
FRANK WEAR.
Witnesses:
ADOLPH F. CUERIER, JAMES L. MAOLARY.
US71163499A 1899-04-03 1899-04-03 Safety-tread. Expired - Lifetime US637437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US71163499A US637437A (en) 1899-04-03 1899-04-03 Safety-tread.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71163499A US637437A (en) 1899-04-03 1899-04-03 Safety-tread.

Publications (1)

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US637437A true US637437A (en) 1899-11-21

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US71163499A Expired - Lifetime US637437A (en) 1899-04-03 1899-04-03 Safety-tread.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120000151A1 (en) * 2010-06-30 2012-01-05 Steven Cromb Non-skid strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120000151A1 (en) * 2010-06-30 2012-01-05 Steven Cromb Non-skid strip

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