US1259502A

US1259502A - Composition plug.

Info

Publication number: US1259502A
Application number: US15428917A
Authority: US
Inventors: Ira E Farr
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-03-12
Filing date: 1917-03-12
Publication date: 1918-03-19
Anticipated expiration: 1935-03-19

Description

106. COMPOSITIONS,

COATING R PLASTIC.

1 l fiaper an 0c a quantity of cement to harden the 'whlch is added and intermixed a binding IRA E. FARR, 0]? WATERTOWN, NEW YORK.

COMPOSITION PLUG.

1 259,5()2 Specification of Letters Patent.

No Drawing.

Patented Mar. 19, 1918. Application filed larch 12, 1917. Serial No. 154,289.

To all whom it mayponcern:

Be it known that I, IRA E. FARR, a citizen of the United States, residing at Watertown, in the county of Jefi'erson and State prising the composition, are not liable to of New York, have invented certain new and shrink or get out of shape no matter how useful Improvements in Composition Plugs, long they are used. My process or method of which the following'is a specification. Will now be described.

The invention relates to an improved plug Inikeprocess of preparing the composior bushing capable of a wide field of use, tion, news'p'fi''fs or other suitable waste paalthough specifically adapted for supporting per are first beaten by the well-known pulp rolls of wrapping and other paper, and to beaters until finely broken up. Thigpnlp the composition of which said plug is comn ins a liber l M f wat r I er posed. e eating. be next step The composition of materials out of which onsis s 0 a 1n e pulp approximately the plug is composed preferably consists of 110% in weight of a suitable cementitious a pulpy substance" incorporated and than substance, such as Portland cement or analooughly mixed with a hardening material, to gous substance, w 10 1s en m1xe with the pulp by any suitable agitating means. The third step consists of adding approximately then pressed in any preferred manner in 10% in weight of finely powdered slaked bushings of the desired shape. ime and again agitating all of saidlngredi- The material or ingredients comprising enis until they are thoroughly incorporated the composition of which my improved and the whole becomes a relatively thick plugs are made, consists of a pulp, preferpaste. The paper stock is in such proporbl der' -0 u vwaste tion (about 60 as to render the plugs e 1 e, common y paper fibrous and 1g t, while the cement and lime act as binders, and at the same time tend to solidify the pulpy mass, and when the composition is suita y compressed, and allowed in common use, without increasing the cost of the plugs and at the same time my plugs,

cause of the nature of the ingredients comingredient, all being thoroughly mixed and mass to a certain extent, a quantity'of lime to co-act with the cement as a binder, and

water in suflicient quantity to render the to dry and harden, the pl gs wil Stand c nsiderable crushing strain and rough handling without gettin out of shape. By the use of the cement an lime the bodies of the plugs are more solid and are less liable to shrink or warp or otherwise get out of shape. After the composition is prepared as described, it is delivered to a machine (which is not illustrated as it forms no part of the .present invention, it being understood that any of the conventional machinesmay be employed for this purpose), which is ar- 'ranged to force and compress measured quantities of the composition into a mold, become rie out, and many of the wooden and during the molding operation pract 1- plugs when thoroughly dried, crack or split, cally all of the surplus water contained m and are therefore unfit for use. Furtherthe composition is squeezed out, so that when more, a large proportion of the wooden the plugs are e ected from the mold they plugs warp or otherwise get out of shape so are of predetermined uniform size and shape that they do not properly fit the openings and they are also relpjgel hard and in the ends of the rolls, and the rolls are therefore liable to get out of shape or collapse, which interferes with the ready unwinding of the paper when wanted for wrappin purposes. My composition plugs composition pasty to a degree .suitable for properly molding and compressing into a compact and smooth body.

Heretofore, plugs for paper rolls have usually been turned up out of wood, and bored out to receive shafts or rods upon which the rolls are mounted and rotatable as the paper is used. These wooden plugs are turned up in several standard sizes intended to snugly fit in the ends of the different size rolls of paper. As a rule, the wood from which the plugs are made is green or wet and the In invariably shrink when they and light. Following the molding of the plugs, the latter are artificially dried for an hour or two, and then they are ready for shipment and 'use.

are ed to replace the old wooden plugs Y The material of which the plugs are made 119 smooth, as well as comparatively tenacious is composed of wood pulp, preferably oldpaper stock, lime, cement, and water, as described, which is suitably mixed and worked until it becomes a relatively thick paste. The relativel thick paste, composed of the ingredients a ove referred to, or their equivalents which will form a bushing of this general character are delivered to any of the well known types of forming machines, which will automatically turn out the bushings in rapid order by pressing and forming the pasty substance into the desired formations.

Having thus described the invention, what I claim is:

1. The herein described plastic composition for molding plugs for paper rolls, consisting of a fluid wood pulp, powdered slaked lime, and cement, substantially as'described.

2. The herein described lastic composition for making plugs, consisting of old paper stock, slaked lime, cement, and water, substantially as described.

3. The herein described plastic composition, consisting of old paper stock, sixty parts, finely powdered slaked lime, ten parts, and cement, thirty parts, and water substantially as described.

4. A bushing of the character described composed of a plastic composition consisting of paper stock, slaked lime and cement, and a fluid, substantially as described.

In testimony whereof I afiix my signature.

IRA E. FARR.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents. Washington, D. 0.