USRE17792E

USRE17792E - Expansion joint

Info

Publication number: USRE17792E
Authority: US
Publication date: 1930-09-02

Description

sept. 2, v193- C; PTEEQ Re. 17,792

EXFNS TON JOINT Original Filed June lLL, 1920 @im E TO'R .a/ZZU BY f "Reiu'uediseigz, V193e UNITED' "STATES PATENT oFFIci: o.

lCARI J'. PATEB-OF WYOMING, OHIO, ASSIG-NOR TO THE PHILIP CAREY MANUFACTUR- ING COMPANY, A. CORPORATION F OHIO EXPANSION JOINT Drig'inal No. 1,665,718, dated A-pril 10, 1928, Serial No. 388,987-,i1ed June 14, 192.6. Application for reissue vas ' med Aprn 10, 1930,

My invention relates to anexpansion joint formed in the factory and shipped'to the lace of application. It is yar'ticularly adr'essed to expansion l joints or use in street paving, such as concrete, brick, Wood block and similar streets or highways or other places where it isdesirable to place at intervalsan expansion joint to compensate for the contraction and expansion of the paving, due to variations in temperature. It'i's desirable that the material of which 'expansion joints of this character are made should be of such` a nature that While possessing the req`uisite characteristics to serve as an expansion joint, it is capable of being moulded or otherwise formed to the desired shape in the factory. These expansion joints must, when finished, be adapted to be readily handled andpacked without adherence' toeach other,

while at vthe same time being sufliciently board-like to permit of their being installed in place or used as a portion or side of-the mould when a concrete pavement is being laid. In this Way my expansion joints obviate the necessity of first placing the form or vmould in position and then after the concrete is set,'r emoving the mould and placing the joint in the space from which the mould was removed. They also obviate the pouring of joints o n the job. Referring to t-he drawings annexed hereto and forming a part of this specification,

i Fig. 1 is 'a cross section of of my invention, and

` Figs. 2, 3 and 4 are1 respectively similarv vievs of three modifications.

' In all forms of my invention shown, B -is themain body of the joint and A is the reinforcement or non-adhering surface. In carrying out my invention I prefer to use a material plastic in its nature and possessed of the necessary Waterproofing and non-dete riorating characteristics such as asphalt, coal tar, candle tar, pine tar, or any other bituminous or suitable hydrocarbon material. This bituminous material may be either a pure asphalt or a composition of' asphalts -or other bituminous materials or a combination of bituminous and other materials, In the preferred form of my invention I take a one embodiment Serial No. 443,101.

quantity of the bituminous material, preferably in excess of lifty per centby Weight,

and combine with it a filler of suitable material, such as asbestos fibre, iiax, pulverized coke,I lampfbl'ack, pulverized charcoal, clay, M y

sand, Waste tan bark, grasses, cork, flax or other suitable material. In making the mixture .I heat Vthe bituminous material until it is sufficiently fluid .to permit of the ready mixing of vthe filler with it.4 .Then the mixture terial into which it is mixed so as to make it Waterproof and preserve it.. Somel materials could be used which are not capable of being saturated but which have other qualities, such aselasticity and iexibility, as in the instance of cork mentioned, and these materials when coated With the bituminous material Will be protected and will notdeteriorate or be af fected by the climatic or other conditionsI arising from the useo'f the joint. The joint made of this bituminous material containing the filler must be plastic but in order to permit of its ready handling for shipping purposes and for application and use on the job,

"it is desirable that this plastic mass be provided With some reinforcement for the purpose of strengthening it. This reinforcement may be a bituminous reinforcement made by using 'a bituminous material which is of a harder consis'tencyor of less plasticity than the plastic mass' which it is to reinforce'. Such a reinforcementmay be obtained by using an asphalt Which is harder than the mass to be reinforced or combining an asphalt with some iller which will tend to make it harder and then applying this hard asphalt mixture to the surface o'f the plastic mass to the desired thickness, thereby giving body and strength to the joint so that it will forma slab or board-like structure capable of being easily handled. A bituminous material could be utilized for this purpose having a much higher melting point than the plastic mass first referred to or one having a much lower y penetration than the plastic mass which it Vis to reinforce. This reinforcing material is applied preferably on the exterior of the plastic mass, although if [desired it could'be made the core and the plastic mass applied to eachA side of it. Thethickness of ,this reinforcing material-depends upon the` thickness zio of the joint and the thickness of the plastic mass but it must be of sufficient thickness so as to aHord the board-like or slab-like. characteristics to thefmal complete expansion joint.- I sometimes use in lace of the bituminous reinforcement a rein 'orcement of paper .or sometimes combine the paper rein*V forcement with the bituminous reinforcenient by placingthe paper on the exterior or between the original plastic mass and the bituminous reinforcement, as shown in Figs. l3. and 1 Where C is the paper`reinforcement. .If desired any material could be usedin this was desirable to give greater adhesion between the joint and adjacent structure, than would be afforded by the natural characteristics of the joint itself. The surface of the joint could, to further prevent adhesion of adjacent joints especially in extremely hot weather, have a layer or exterior coat or vdusting of talc, soapstone, mica or any similar suitable minute particles adapted to prevent the adhesion `of adjacent joints when packed,

etc. ...j-'What I claim:

vl.` An expansion joint formed of a body of bituminous material and a body of harder bituminous material than said rst mentioned body, forming a surface for said joint.

2. An expansion joint composed of a body' of bituminous materialand an exposed surface thereof formed of a body of bituizninous material reinforcing said first mentioned body, said reinforcing body having a pene,- tration less than the penetration ofsaid first mentioned body.

3.' An expansion joint formed of a plastic mass composed of a bituminous material containing a filler and a layer of. bituminous material reinforcing said plastic mass and forming a surface for said joint.

4. .A preformed expansion joint formed of a plastic mass composed of bituminous material containing a fibrous filler and a layer of bituminous material reinforcing said plasticl mass and forming a surface for said joint.

lied at the factoryV or on the job. The "adhesive lcoat would only be used where it 5. A preformed board-like expansion joint formed of a plastic mass composed of bituminous material containing a filler of vegetable Y fiber. and a layer of bituminous material harder than said plastic mass reinforcing said mass and forming a surface for said joint.

6. A preformed expansion joint a plastic mass composed of a bituminous Vmaterial containing a filler of grassdike ber and a layer of bituminous'material reinforcing said plasticmass and forming a surface for said joint. f s

7. A preformed'boardlike expansion joint formed of .a body of bituminous material .and a body of harder lbituminous -materiai Vthansaid first-named body forminglasurface for said joint andin contact with said firstnamed body. Y y

8.A An expansion joint formed of a bb'dy of bituminous .material and a body of harder bituminous material than said first mentioned body forming-'a surface for said joint and a reinforcement said joint. j

j 9. An expansion joint formed of a body of bituminous material and a body of harder bituminous material than, said first mentioned body and arranged intermediate the'surfaces4 of said expansion joint.

10. An expansion joint formed of a body containing bituminous material arranged in layers, one of said layers being of a harder bituminous material than the adjacent layer and a reinforcement of sheet material embedded in said body. i

ll. An expansion joint formed of abody containing bituminous` material arranged in layers, one of said layers being of a harder bituminous material than the adjacent layer anda reinforcement of fabric material 4embedded in said body. l

l2. An expansion joint having abody con# tain-ing bituminous and fibrous material, a portion of said body beingl composed of a bituminous material harder than the bituminous material in the adjacent reinforcement embedded in said body.

in testimony whereof, I have signed my name to this specification.

- CARL J. PATEB of sheet material embedded in,

a reinforcement of sheet material j formed of portions and a