US59839A - Island - Google Patents

Description

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IMPROVEMENT IN LAMP WIGK.

SPECIFICATION. TO ALL WHOM IT MAY CONCERN:

Be it known that I, Isaac L. Hoar), of Bristol, in the county of Bristol, and State of Rhode Island, have invented a new and useful Improvement in Lamp Wicks, and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings forming part of this specification, in which Figure 1 is a side view of a sample of my improved lamp wick.

Figure 2 is a side view of a sample of a smaller-sized wick.

Figure 3 is a cross-section of the same, taken through the line w z, fig. 1.

Similar letters of reference indicate like parts. 7

My invention consists in making lamp wicks out of any kind of paper pulp from which paper can he made by leaving out of the pulp the ingredients commonly put in to strengthen the paper, and by diminishing the amount of pressure applied. h p

To enable paper to be usedi for the purpose sof a lamp wick it is necessary that it should he so prepared that when completed it may have a spongy con'tcxture and a high capillary power. The pulp for these wicks, A, is manufactured in the ordinary manner, except that all the ingredients are left out of the pulp which are commonly put in to give strength and consistency to the paper, such as alum,'paste, glue, gum. soap, rosin, &c.,

- which substances would impair the capillary power of thepaper by closing up the pores and causing the particles of the pulp to adhere closely to each other. This construction leaves. the poresopen; but to ensure its having the proper contexture a much less amount of pressure must be applied to reduce the pulp to the proper form than isnsually applied in manufacturing paper for other purposes, since'too great a pressure would close the pores or capillary passages by pressing the particles of pulp too closely together. In all other respects the process for the manufacture of'the lamp wicks, A, is the same as that by )Yhich ordinary paper pulp is prepared and ordinary paper manufactured. The paper wicks A maybe made of any desired length, breadth, and thickness, according to the requirements of the various lamps in which they are designed to be used.

By the use of this improvement the consumption of the kerosene will be very much diminished, the light produced will be equally as good, and the wick will cost much less than the ordinary wicks.

What I claim as new, and desire to secure by Letters Patent, is

1. Paper lamp wicks made of paper pulp, substantially in the manner herein described and for the purpose set forth.

2. The use of paper pnlpfor the manufacture of lamp wicks, substantially as described and for the purpose set forth.

ISAAC L. HOARD.

Witnesses:

CHAS. H. SPOONER, J. N. Bunosss.

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