US1649951A - Adjustable connection - Google Patents

Description

Nov. 22, 1927.

'r. A. ENGLISH ADJUSTABLE CONNECTION Filed March 15, 1923 Patented Nov. 22, 192.7.

'r-HoMAssAl. ENGLISH; or nnNssnLAnRgNnw' Yoan.,

anansTABpE coNIjcgrIoN.

Appnation fiiednarcn 15,1923. serial No', 625,330.

invention relatesg to connections and rt ularly` to hinged' connections, :applieto` VariousartiCleS, which permit the s" connected thereby tol be easily Aadjus yd ,in various,angularrelations to each otherand' which \"'ill"'1etai1rthe adjusted relation under the stresses arising in the .ordinary usesffork'w-hich the article is intended.:

. My invention is'an imjprovementon the generali type of connection disclosed" in"V Letters PatentNo', 1,416,526 issued to me onk May 16, 19227 and: is' `A particularly adapted toA the usestherein illustrated.

The objectsv Otniy'inventiOn are'to provide ay deviceg` of thisgeneral character in whichfthe surfaces, ,which move in contact withfeach otherjunder considerable pressure, 'are perfectly smooth andof large eX- tent, thus minimizing. wear, and in' which these; surfaces are, maintained in movable contact by a permanentlyadjusted resilient means adapted to take up frictional wear@ These and other objects and advantages will appear more fully as the description is read in connection with the Aaccompanying drawings in which- Fig. 1 is a perspective view of the device embodying my improvement.

Fig. 2 is a cross sectional view.

Fig. 3 is a perspective view of my as applied to a cleaning implement.

Fig. d is a perspective view illustrating how one part of my device may be constructed to engage a handle or other round member` to be connected.

Fig. 5 is a perspective view illustrating how one part of my device may be constructed to apply to a flat surface.

Fig. 6 is a perspective view illustrating the application of my device to a windshield.

Fig. 7 is an enlarged, fragmentary, section showing the coaction of the rivet and the resilient means to prevent'relative movement. v

Similar numerals refer to similar parts.

My device comprises two metallic members,.1 and 2, preferably in the form of circular disks and of substantially the same size, which are secured together by a rivet or other suitable means, 3, passing axially through the disks. Concentrically disposed in relation to the rivet, 3, is a seriesof equally spaced projections, 4, in the member, 2, which are adapted to interit with a simdevice vthe, member, v1.

ilarlydisposed series ofdepressions, 5, in

These projections and depressionsy may, of course,- be formed5 infdifferent waysf depending tol some eXtentLupo'n the material 'ofJ which?? the members, 1' and 2,-. members be'r cast, the projections 1 and de'- pressions may be readilycast therein I tind'i-however, that a Vvery satisfactoryconnection formally-uses may 'be'v cheaply vv'made arrelcomposed. `For eXa1nple,-fif these by stainpingf the membersfl andv 2,2'jfrom'f- 'sire .Vnfietal andat the same time, embossing theV projections'A and depressionsfthereinl Ratei-rinato Fig. 2 1t willfbel'notedlthat 'l'helieads"oi the rivet do not 'contact-i with the members, 1 and 2, but-are i spaced 'fthere- ,from by4 the" resilient* washers, f6. ',The washers, 6, are of metalpossessing-suitable resilientcharacteristics, and areformed with an Y outer annular portion, 7 adapted ito rest `fiatY against the members', 1 and 2, a'ndan' embossed center portion, 81, whichlengag'es,

at its center, the head of the rivet, 3, passing therethrough. In order that the washers, 6, may be rendered resilient, they are slotted along two `diameters at right angles to each other, as yshown at 9, so as to separate the embossed central portion into n four equal quadrantal portions. By using washers ofthis type, it will be evident that by setting up the rivet'heads so as to produce some initial pressure upon the flexible quadrantal portions, the members, 1- and 2, will be held firmly together in any adjusted relationand yet the washers will be suficiently resilient topermit the slight sepa-y ration of the members necessary to effect a change in adjustment. l

In eiiecting an adjustment there will be no movement of the rivet heads upon the Washers because, in the process of riveting, portions, 13, from the heads will be forced into the slots, 9, as shown in Fig. 7, which will make this relation fixed. It will therefore be obvious that the flat, annular portions of the washers will move upon the outsides of the members, 1 and 2, and, as the surfaces in moving contact are vof substantial area, the wear will be minimized.

The members, 1' and 2, have ta-ngs or shanks, and 11, respectively, which may be of any form for attaching my connection to various objects, and to illustrate this, I have shown in Fig. 4`how a tang may be constructed to engage a round member such as a stati or handle, and in Fig. 5, how it soy may be constructed to attach to a flat surface at right angles to the plane of the connection.

In use, for example, as applied -to the brush or mop shown in Fig. 3, the staff or handle, l2, may be set at any angle desired in relation to the surface over which the implement is lo be used. The initial compression of the washers will be suflicient to hold the projections, 4, in engagement with the depressions, 5, thus lining' the angular relation of the staff and brush, and, whenever it is desired to change this angle, it may be easily' done by holding, the brush firmly against the floor andsimultaneously.exerting a little additional strength on the stali' so that the members, l4 and 2, will move relative to each other until the desired angle is found. AIn effecting this adjustment the projections, 4, will rise out of the depressions,

'j 5, with which they have been immediately engaged, and the spring washers will be compressed and Yforce the projections into consecutive engagement with the depressions as they are reached in turning the members,

1 and l2, in relation to each other. f

What I claim is:

l. An adjustable connection comprising two disks in intimate contact mounted upon a common axial shaft, a series of projections on one disk concentric with said shaft and adapted to interiit with a like series of de pressions on the other disk, and separate resilient means at each end of said shaft havtional contact, the combination with a pivot pin connecting said disks, of vtwo resilient washerseach having` a n-on-resilient porti. of substantial area in moving Contact wit a disk, Vand a resilient portion in fixed relation to and compressed against an upset end of the pivot pin. Y i

3. An adjustable connectioncomprising substantially coextensive disks, a common axial shaft therefonand a resilient means at each end of said shaft for holding saiddisks in intimate contact; said means being` provided with an annular, non-resilient portion of substantial area in- Contact with a disk and a resilient center portion, integral therewith, comprising a plurality of spaced,

convex sectors adapted to receive portions of the shaft therebetween to prev-ent relative movement of said shaft and saidv means, whereby wear is prevented.

THOMAS A. E Neiisii.y

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