US1202473A - Means for securing heat insulation in position. - Google Patents

Description

M. BiRTW!STLE & E. JONES.

MEANS OF SECURING HEAT INSULATION IN POSITION.

APPLICATION FILED MAY 1. 1916.

l ,QUQA FS Pa tenred Oct. 24, 1916.

JA/vENToRs;

JWMSW A T0R Y.

MARK IBIRTWISTLE AND EDGAR JONES, 0F PETONE, WELLINGTON, NEW ZEALAND.

MEANS OF SECURING HEAT INSULATION IN POSITION.

Application filed May 1, 1916.

To all whom it may concern:

Be it known that we, MARK BIRTWISTLE and EDGAR Jonas, subjects of the King of Great Britain and Ireland, residing at Ietone, in the city of Wellington, in the Dominion of New Zealand, have invented a new and useful Improvement in Means of Securing Heat Insulation in Position; and we do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to that class of in sulation for employment upon surfaces for the purpose of preventing a reduction or in crease of temperature of such surface from external influences.

The object of the present invention is to provide an improved method and means of securing such insulation in position and is especially useful on steam pipes, steam valve fittings, ammonia pipes and such other articles requiring heat insulation.

According to this invention the insulating material is provided with suitable clips attached to the outside surface of the insulating material preferably near the edges thereof and these edges or the adjacent edges of an adjacent mattress are brought together and secured in position by lacing adapted to be passed around the clips.

The insulating material is usually in the form of mattresses or pads of the required area to cover the surface or to surround the article to be insulated and the clips are attached by riveting or otherwise to the outside surface thereof preferably along the edges of the mattresses or pads. When a mattress or pad is folded around a cylindrical surface and its two edges brought together they are fastened by means of asbestos twine laces or fine wire interlaced into such clips and serve to draw the edges together and retain them into close engagement. When the mattresses or pads are spread over fiat oval or large cylindrical surfaces the edges thereof may be fastened to the corresponding adjacent edges of the other mattress or mattresses by lacing in the manner above described.

The invention will now be described with the aid of the accompanying drawings and the novel features thereof pointed out in the claims.

On the drawings, Figure 1 is a perspective view of a pipe encircled by an insulation pad secured in position according to our invention. Fig. 2 is an elevation of a flat or Specification of Letters Patent.

Patented @ct. 2 1, 1916:.

Serial No. 94,817.

large cylindrical surface having a plurality of mattresses secured together in accordance with our invention. Fig. 3 is a plan show ing in detail the lacing. Fig. 4 is a cross section through a portion of the mattress showing a clip in position. Fig. 5 is a view showing another form of clip.

Referring to the drawings but more particularly to Figs. 1 and 3, pads or inattresses 1 of the usual asbestos cloth filled with a lagging preparation of asbestos fiber or magnesia, are placed around a pipe 2, a row of lacing clips 3 being provided upon the exterior edges 5 and 6 of the pad as shown. A lacing 7 of asbestos twine or fine wire is interlaced along the clips in the manner shown thus serving to draw the edges 5 and 6 into close engagement and retain them in that position. There a joint occurs between two mattresses extending end to end as in Fig. 1, the lacing may be continuous along the joint.

The preferred form of clips are those shown in Figs. 4: and 5. In Fig. 4: the clip 3 has a shoulder 8 resting upon the exterior wall 9 of the mattress while a washer 10 of asbestos cloth is located between the wall 9 and a metal washer 11 over which the stem of the clip is riveted. In Fig. 5 a cloth washer is not employed the metal washer 11 being simply introduced between the wall 9 and the riveted end of the stem.

In Fig. 2 are illustrated mattresses of the insulating material employed upon a flat or large cylindrical or other surface. In this case the mattresses have rows of lacing clips 3 extending along the edges that will be adjacent to the edges of one or more mattresses. In this case the lacing 7 fastens the adjacent edges of the mattress one to the other as is clearly shown in the figure.

When employed upon a pipe the joint between the two mattresses extending end to end may be covered by a metal strap clamp 12 as in Fig. 1. This clamp may also serve to retain the mattress in position upon the pipe during the process of lacing. Or in place of the clamp the ends may be laced together in the same manner as the longitudinal joints.

What we claim is 1. In combination, a plurality of pairs of heat insulating mattresses, the adjacent edges of one pair being in alinement with the adjacent edges of the next pair; each of said pairs of mattresses meeting the adjacent pair and forming alined contacting edges intersecting said alined adjacent edges at substantially right angles; clips secured to said adjacent edges; laces engaging in said clips the laces being continuous from one pair of adjacent edges and crossing the line formed by said alined contacting edges; and a holding means extending continuously along the line formed by said alined c011- tacting edges and crossing said laces, and crossing at right angles the line formed by said alined adjacent edges.

2. In combination, a plurality of pairs of heat insulating mattresses, the adjacent edges of one pair being in alinement With the adjacent edges of the next pair; each of said pairs of mattresses meeting the adjacent pair and forming alined contacting edges intersecting said alined adjacent edges at substantially right angles; clips secured to said adjacent edges; laces engaging in said clips, the laces being continuous from one pair of adjacent edges and crossing the line formed by said alined contacting edges; and a strip of metal forming a metal clamp extending continuously along the line formed by said alined contacting edges and crossing said laces and crossing at right angles the line formed by said adjacent edges.

In testimony whereof, We have signed our names to this specification in the presence of two subscribing Witnesses.

MAR- K BIRTXVISTLE. EDGAR JONES.

lVitnesses SYDNEY H. Hices, E. P. ODONNELL.

Copies of this patent may be obtained for five cents eaekaby addressing the Commissioner of latents,

' Washington, D. C.

Images