US1032955A - Puncture-proof inner casing for pneumatic tires. - Google Patents

Description

T. F. SHIELS & W. R. BOLTER.

PUNGTURE PROOF INNER CASING FOR PNEUMATIC TIRES.

APPLICATION FILED NOV. 9, 1911.

1,032,955. Patented July 16, 1912.

. TEL 5 Q wvm vko'w (3 2572/4? azu- J5. .Ea/Zer To all uflwm it rnay concem: Be-it knownthat we,

UNITED srA'rEs PTENT' OFFICE;

rrtomas F. SHIELS AND WILLIS R-AY- BOLTER, or LowELL, MICHIGAN.

rmvorunurnoor INNER CASIKQFOB PNEUMATIC Tr ms.

andlVIL LIs RAY BOLTER, citizens of the United States, residing at Lowell, 1n the county-of "Kentand State of Michigan, have invented certain new and useful Improvef-of the tire and to being brolren away ment'sin Puncture-Proof Inner Casings for Pneumatic Tires; and we do declare the following to be a full, clear, and exact description of tl'ie invention, such as will enable others skilled in the art-to which it apper" rains to make and use the same.

This invention relates to improvements in inner casings for pneumatic tires.

One objectof a casing oft-his character adapted to be placed betw eenthe outer and inner tubes be securely held in positionto reduce the strain or pressure of the inner tube against the outer tube and to effectually protect the inner tube .from

puncture. With this and other objects 1n view the invent-ion consists of certain novel-features of construction, and the combination and-arrangement of parts as will be more fully described and claimed. r

In the accompanying drawings; Figurel is a side view of a portion of a tire having ournnproved casing applied thereto,- parts tomore clearly illustrate the casing. F ig. 2 1s a.

the arrangement of cross sectional view through the tire and easing; Fig. 3 is a sectional perspective view of the improved casing-,1, removed from the tire; Fig. e is an enlarged plan view of a portion of the casing, parts of the same being broken away and in section to illustrate the construction of the fabric forming the casing; Figrf) is an enlarged sectional view of the fabric as shownin Fig. 4.

Referring more particularly to the drawing, 1 denotes the outer tube ofthe tire and 2 denotes the inner tube. Theltubes 1 and 2 may be of the usual or ofany desired construction and between the, same is arranged our improved shoe or casing 3 formed of a;

flexible fabric practically puncture proof strip, the edges; 01" which are secured to me;

talhcrings 4 of substantially triangular form 111 cross =seet1on as shown and prothe rings are arranged in position for bolding the casing. Tlie inucr surface of the rings has a slight transverse curvature and Specification brretters Intent.- Application filed November $1911 Serial No. csass'a' THOMAS -F. SHIELS he invention is to provide.

Patented Ju1y16, 1 912} when "said rings are brought together these inner sides form-a smooth-bearing surface for the'adjacent sideof. the inner tube of the tire.

In the outer sides of rh'nng's ,are forrned right. angular longitudinal recesses 6 within which are seatedr-theedges 'of the casing,

said edgesbeing firmly, secured inthe re--.

cesses 6 shown.

of the rings ,by-s'crew'sf or' rivets -7 as The depth of the 'recessesfi ,"corre sponds tothe thickness of ithe edges of the 2' casing 3- seated thereon so that when-said edges .are secured to th e =.ring's the' outer surfaces thereof will be fi u sl1 ,;-t h1 1s permit-.1. ting the outer side of the rings and the adjace'nt outer surface of the casing toi'closely tire as clearly shown in Fig.2 of the drawing. When the r ngs andf'cas'ln are thus applied to' the tires, .thecasing W1 1 form an e cient practicalpunctureproof ,coverlng for the inner tube of the ,ftire' and will alsoby the inner tube when inflated.

relieve the outer tube from strain or pressure outer layers 8 of canvas and an inner'oanvas layer 9. Between the layers of canvas 8 and the layers of canvas and cane. The layers of I rubber, however, may be dispensed with if desired and the-layers of canvas stitched or otherwise firmly secured to the layers of cane or ratan. The casing when formed of fabric constructed as "herein shown and described willbe stron durable and p'mctically puncture proo in construction and will be sufiiciently flexible or liable to freely yield with the movement 0 the tires. The casing has 'also been found to-be frictio-nles'srand non-heating."- s

The fabric while herein shown and described a's being arranged to form a casing it is obviousthatt-helfabric may also be embodied in or employed for relining old tires or for formin blow out patches."

-. From the oregoing description taken in ponnectron with the-accompanying. drawlogs, the construction and operation of the- "fit the inner surface-oftheouter-tubebf the i The fabri forming the casing 2 oernpriss 4 principle or sacrificing any of the advanof an outer layer of canvas, layers of woven 20 tagcs of the invention as claimed. i, cane, an inner layer of canvas and layer f Having thus described our invention,, rubber arranged between said layers of canwhat we claim is; vas and mine, said layers being vulcanized 5 1. An inner casing for pneumatic tires together to form the fabric, and rings havcomprising a pair of rings hiiving upper ing outer an ular recesses receiving the 25 (lg es curved toconform to the inner tube edges of the fa ric flush with their outer sir when inflated?- and flat -closely fitting verti- Su fa h W p d P d cal engaging surfaces, and having in their within the O r e n t0 l an s p- 10'0uter side surfaces right angular notches port the inner tube to form the complete or recesses, and a strip of flexible puncture tire. 30'

proof fabric having its edges secured in In testimony whereof we have hereunto the notches of said rings whereby the fabric set-tour hands in presence of two subscribis flush with said outer side surfaces and is iug Witnesses.

15 held in position between the inner and outer THOMAS F. SHIELS.

tubes of the tire, supporting the inflated YVILLIS RAY BOLTER. inner tube. A Witnesses:

2. An inner casing for pneumatic tires .R. E. SPRINGETT, comprising a puncture proof fabric formed ALMA FLQGAUS.

. v Copies of this patent may be obtained or five cents each, by addressing the Commissioner or ratents.

Washington, D. 03"

Images