US1625545A - Shim - Google Patents

Description

April 19,1927. KARMAZIN- 1,625,545

Asnm

Filed March 20. 1925 l t. I r- Patented 'Alpi'. C19, 1927.

' UNiTED. 'srariazs PATENT OFFICE.

JoHN xAnMAzIm or EAST AMHERST, NEW YORK, AssrGNon yro LAMINATED anni:`

COMPANY, INc., or LONG IsLAND CITY, NEW Yonx, A conPoRATIoN or: NEW

snm.

Application led March 20, 1923. Serial No. 626,288.

This invention relates to an improved method of making shims of the type which are used to separate the parts of a bearing and which, due to wear of'the shaft in athev bearing or journal, have to be more or less adaptable to reduction in size.

In some t es of shims it is difficult to reduce the t iekness of the shim uniformly,` and it is one of the objects of my in- 1o `vention to provide a shim, the thickness of which can be instantly reduced without filing or machining thus making it possible for the motorist whois desirous of taking u a bearingto eliminate noise or rattle oi) such bearing, etc., when .the parts become worn (and who may not have the necessary equipment at hand to machine or file down a shim), to quickly accomplish this work.

A further object of my invention is to provide a shim in which the laminee arc cut so that they will when assembled in the form of a shi-m hold themselves together without the aid of any binder or the like.

Referring tothe drawings, wherein one embodimentv of my invention is illustrated:

Figure l is a top plan view of the press bed, the pressure member -being shown in outline, and the shim shown in place upon the bed of lthe press;

Fig. 2 is affront elevation ofthe press showing the laminas that make up the completed shim in assembled position and ready to be acted upon by the pressure member;

Fig. 3 is a front elevation of the press i showing'the pressure member at the limit of its descending movement, the pressure member, bed and shim being shown in partial section;

Fig. 4 is a section taken on line 4-4 of Fig. 3' l Figa is 'a top plan view of the completed shim constructed by my improved method; and,

Fig. 6 is a section taken on the line 6--6 of Fig. 5.

Referring to the drawings in detail, 5 indicates a power pressof the usual t pe which comprises apressure head 6 and ed 47, the latter losing provided at its rear top portion with an arcuatelv cut raised part 8,against-the forward edge of winch vmay lbe readily assembled in proper relation the laminaat) which go to make up the comf pleted shim 10. Thislraised portion 8 is 55 less than the shim thickness, 1n heifrht so that the head 6 in descending will ie allowed to compress the shim laminas without interference.

In order that the laminas 9 shall be held. together securely I have provided tongueshaped projections 1], on the under surface of thil pressure head located so that they will engage the shim in v.its extended portions 12. lhese projections 1l are cut arcualely outward so that a point is produced on their ends.` ln i'act the projections serve as punching dies and may be cupped to produce a tongue-shaped cutting edge.

The laminas are provided with a holel through which the retainin bolt of a bear# ing is adapted to pass, an are shaped to match'the particular part of the bearing in which they are placed.

The laminee 9 are assembled according tn the number desired for any particular thickness of shim, on the bed of'the'prcss, and when the pressure member descends, the die projections ll force the laminas in thc shape of tongues 14 in the projected portions thereof downwardly so that each lamination has cut thereoutof oppositely disposed tongues which project into the next lower lamination in the space left by the downwardly bent tongues of said lower lamination.

The ei'cct of this punching then, is to produce within the shim portions of each lamination which are crowded longitudinally and which, while extending into any other lamination will prevent any relative movement thereof. In. other words, the tongues 14 in the top lamination 9 (see Figure 6) will extend into the openings left by the tongues in the next lower lami: 95 nation and there will be no movement of `these two laminas relatively to each other.

Also, the laminae which are more or less malleable, when subjected to pressure at a point will adhere so closely as to be dificult to separate` unintentionally. i This is the ycase of the lowermost laminas, as the lshim, beingon the smooth top of the press bed will not yield wherethe die projection engages it, but the laminas will be greatly compressed, and will expand to fill theA punched out portion and grip the side walls l thereof formed bythe laminas.

i ture, a shim consisting of a When the bearing is to be taken up, the shim may be removed and one lamination or more may be removed by the insertlon of a en-kmfe thereunder Without disturbin t e other lamin.

ligt is to be understood that I am not limited to the shape of the cut out portion in the lamin, nor am I limited to kind of material or thickness of lamin in making my improved shim.

What I claim is:

1. As an improved article of manufac- Cplurality of superposed sheets, each of sai sheets except the bot-tom sheet being so punched as to rovide a tongue which will extend into t e next adjacent sheet, said bottom sheet presenting a smoothiat surface parallel to the upper surface of said shim.

2. As an improved article of manufacture, a shim comprising a series of laminae 1n superposed relation, and tongues punched simu taneousl out of all'of the laminar, except said ottom laminae, said tongues extending downwardly into the space left by the tongue which was punched out of the next lower lamination, said ,bottom lamina presenting a smooth surface parallel with the upper surface of said shim.

JOHN KARMAZIN.

Images