US668530A - Fireproof arch. - Google Patents

Fireproof arch. Download PDF

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Publication number
US668530A
US668530A US73551499A US1899735514A US668530A US 668530 A US668530 A US 668530A US 73551499 A US73551499 A US 73551499A US 1899735514 A US1899735514 A US 1899735514A US 668530 A US668530 A US 668530A
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Prior art keywords
arch
blocks
block
fireproof
lugs
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US73551499A
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Samuel Lord
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal

Definitions

  • Myinvention relates to improvements in terra-cotta arch-blocks used in constructing the iioors, roofs, &c., of fireproof buildings, and has for its chief objects- First.
  • Figure l represents a side view of a course of arch-blocks in position between the beams.
  • Fig. 2 represents a section of the small-size blocks.
  • Fig. 3 represents the key-block.
  • the iron or steel beams A are set in the walls in the usual manner, after which two lengths of angle-iron B S are cut the same length as span of beams. These bars of angle- .of block X.
  • the entire arch is laid in like manner, and upon completionthe lugs P on the first course and E of the last course of blocks are cutoff and the angle-irons removed,
  • the blocks are so constructed that they may be cut to tit any required space with small loss of material, as the internal members or lugs O in broken blocks take the place of the external lugs E P in whole blocks. This is best illustrated by the blocks R W, which show the same cut on opposite ends to it a certain space.
  • the blocks may be cut through the centers with like results.
  • An arch-block made of burnt clay or other material, whose upper and lower surfaces, together with the inclined sides and IOO blocks adapted to form a section or course, said blocks formed with supporting-lugs, of temporary angle-iron supports resting upon the flanges of the girders, and adapted to be I5 removed upon the completion of the section or course, substantially as described.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Description

Patented Feb. I9, I90I.
S. LORD. FIREPBUDF ARCH.
(Application led Nov. 1, 1899.)
(No Model.)
milnesses. fifa/.ffm
UNITED STATES ATENT Fries..
FIREPROOF ARCH.
SPECIFICATION forming part of Letters Patent No. 668,530, dated February 19, 1901.
Application filed November 1l 1899. serial No. 735,514. (No model.)
To all whom it may concern:
Be it known that I, SAMUEL LORD, a citizen of the United States, residing at No. 447 St. Anns avenue, in the city, county, and State of New York, have invented a new and useful Improvement in Fireproof Arches, of which the following is a specification.
Myinvention relates to improvements in terra-cotta arch-blocks used in constructing the iioors, roofs, &c., of fireproof buildings, and has for its chief objects- First. A new system of placing arch-blocks in position without the use of hangers and plank-centers.
Second. Means to prevent the large percentage in broken blocks caused by cutting around the tie-rods and hangers in the present systems. My invention effectually prevents this heavy loss by doing away with the aforesaid cutting entirely.
Third. To make a truss-form block, thereby distributing the strain more evenly, and also to prevent the blocks from warping or twisting out of shape While being burned in the kiln.
Fourth. To make .an arch-block which will give a more level and even ceiling-surface than any block in use at the present time.
Fifth. To make a key-block which will take up the difference in size in hard and soft burned blocks and tighten itself without the use of cement, slate, or other material.
Sixth. To make an arch-block which may be set with more rapidity than the systems in use at present. y
Seventh. A stronger arch with equal weight of material or a lighter arch with the same strength as those in use at present.
I attain these objects by means of an arch block illustrated in the accompanying draw-- ings and by the use of temporary angle-iron centers.
Figure l represents a side view of a course of arch-blocks in position between the beams. Fig. 2 represents a section of the small-size blocks. Fig. 3 represents the key-block.
Similar letters referto similar parts throughout the several views.
The iron or steel beams A are set in the walls in the usual manner, after which two lengths of angle-iron B S are cut the same length as span of beams. These bars of angle- .of block X. The entire arch is laid in like manner, and upon completionthe lugs P on the first course and E of the last course of blocks are cutoff and the angle-irons removed,
. to be used again in arches of equal span. It
will therefore be noted that the arch is now entirely self-supporting.
The blocks are so constructed that they may be cut to tit any required space with small loss of material, as the internal members or lugs O in broken blocks take the place of the external lugs E P in whole blocks. This is best illustrated by the blocks R W, which show the same cut on opposite ends to it a certain space. The blocks may be cut through the centers with like results.
The peculiar form of the key-block is a noteworthy feature of this invention. As is well known, terra-cotta blocks vary in size considerably, which makes a standard-size key next to useless in keying up an arch laid Without cement. This key having a plurality of false bottoms will effectually take up this difference and the arch must of necessity remain absolutely tight. After the arch is in place the keys projecting below the ceiling-line may be removed with a blow of the hammer.
I believe there are several forms of terracotta arch-blocks already patented; but I am not aware that such a one as herein described and illustrated has been patented in this or any other country.
Therefore I desire to secure Letters Patent on my invention and advance the following claims in support of my cause:
l. An arch-block made of burnt clay or other material, with internal and external members or lugs, substantially as shown by E P O in the drawings.
2. An arch-block made of burnt clay or other material, whose upper and lower surfaces, together with the inclined sides and IOO blocks adapted to form a section or course, said blocks formed with supporting-lugs, of temporary angle-iron supports resting upon the flanges of the girders, and adapted to be I5 removed upon the completion of the section or course, substantially as described.
SAMUEL LORD.
Witnesses:
MARGARET L. LORD, D. MCMILLAN.
US73551499A 1899-11-01 1899-11-01 Fireproof arch. Expired - Lifetime US668530A (en)

Priority Applications (1)

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