US1425703A - Repair king post for bolsters - Google Patents

Description

R. O. SHAW. REPAIR KING) POST FOR BOLYSTERS. APPLICATION FILED NOV- 23, 1920.

Patented Aug. 15, 1922.

Ross SHAW, or ivionrnnanoo'nnno, CANADmAS SIGNOR T0 cnnnninn can "a Y FOUNDRY COMPANY, LIMITED, or MONTREAL, cannon.

REPAIR KING rosin ron memes;

naasnos.

Application filed Noveinber Serial n5; 426,0SQQ i l 0 (ZZZ whom it may concern:

sov

Be it known that i, n SS 0. SHAW, a an;

'zen o f the United States and resident of; the

city of Montreal, inthe Province of vQuebec and Dominion of Canada, have invented certain new and useful Improvements in Repair King Posts for- Bolsters, of which the followingis a-full, clear, and exact description.

This invention relates to improvements in truck bolster construction and particularly to improvements in constructionof king posts for use in the manufacture or repair of truck bolsters. The primary object oftheinvention is to provide ajking'po'st adapted for insertion in a bolster withoutthe'necessity of taking apart thecomp'ressio'n. and tension members. a At the present-time. bolsters arerendered breaking or. by reasonofthe members of the bolster'stretching or buckling, with the result that the bolster becomes loose and rattly. and constitutes a yielding structure" in place of the desired rigid structure. The bolsters usually comprise a channel compression member and a tension member in the form of a flat plate, although many bolsters are found with tension members of circular,

channel or other cross sections. In order to replace'a broken king, post, it isnecessary to take the .bolster apart, and, in'the [case of a bolster having afiat plate tension member, f

this involves the cutting out of rivets and the unloending of thetension member to disengage same from the compression member.

The same applies to bolsters having certain other types of tension members butdoes not as a rule apply to 'bolsters'having tension ,members of circular cross section, as such tension members areusuallyheld by nuts. The operations of cutting out the rivets and taking'apart the bolster do not improve the strength of the members and require'such anexpenditu re of time and labor that very little is saved over the cost of a new bolster.

, When a bolster becomes loose from change. in

the length of its members, it can be'tightenedup'only by inserting a longer king post. Y

The driving of shims between the king post and one of the members is not to be. tolerated and, as a'new king post can be inserted only by taking the bolster apart, the same'expense is incurred as if the king post was broken.

This condition does not obtain with bolsters in which the tension members are securedby I T The presentf'nvention resides in post. which, is 'constru'eted' in la plurality of parts,twoj.at least of which meet in a*-plane out'of normal tojthejaXiso-f the post, so that properjrelative'movement of the parts exerts a wedging action for "the purpose o[elon'-.

. tension? members; useless either by reason of'th e king post i 1 Fig. 1 is "a king postco'nstruction'. 1'. p a r. Referring more partlcula'rlyrto thefidrawings, 11 designates the compression member off a bolster, which isjshown "asof channel sue; smear au terity heighten di);

as, es ee. he Pre ent n nti m prov de a king post which "may be inserted r in abolster eithertoreplace a broken-king post or to tighten p '-.th e l bo'lster without so tak ngffapart the compression"? and tension f members thereof. l lThe, invention therefore applies. particularly {bolsters oftypes wherein. the compressionand tension memhere are not adjustablyconnected. w theking mgating the postbetween the compressionand vention 1 of the form to which s applicablej" formed accordingtothis'invention.

Fig. Sis a section thereof o jtne1ine-"3 3 Fig. 4 1s a diagram 'illustrating"-a king post designed tor anotherjtype-k of bolster. i

1 Fig-:5, illustrates a slight m'odification'of cross .secti'on,-and 12 the tension. member of the bolstergi-whichis sh'own'in Figure's 1to 3 a v inclusive,as formedfof a" I'la.'t',,-plate -bendjati its endsbver thefendsf'ofthe compression member and secured'by any suitable number of rivets-l3j The'king postydesignated as a who l'e bythe numeral'll,isinserted'between the 'co,inpression and' tension members midwayfbetween theen'ds thereof and forms a truss ofthe' whole (structure? The king post is held against movement longitudinally of the bol's'ter'by'riv'ets lo-which connect" it to thecOmpreSsiOn'member and is held 'jagainst movem'ent transversely of iithe bolster" by 1 reason of its engagement between the flan es "of the channelled 'comp'ression memberg 4; n

the simple form illustratedin Figures 11- to;

f rivets or flanges on either *mei'nbenengaging the other." 'In Figi1re' 4,there is illustrated i the drawin which llustr te-tire mf ajnngqpbst 8,1tl1ere is no connectionbetween the king partial planvi'ew ofa bolsterf thepresent invent'ion postand tension membereitherby way; of I i I rivets 15.

a king. post embraced between flanges of a channel-shaped tension member 12 and, in Figure 5, there is illustrated a king post having thereon flanges to embrace a tension member of any suitable section.

In all the forms illustrated, the king post comprises a plurality of members of which one member, designated 16, replaces the upper end of the ordinary king post and is mustered tothe compression member by the I I The, remalnder of the king post isformed of .one .orxm'pre members according to the type of post or the type of bolster.

Inthe simple formof' bolster the remainder of the post is a single member 17, adapted for engagement with the tension, member and with the member 16. The meeting faces 18 of these members are inclined out of nor mal to the axis of the kingpost, as clearly shownin .FigureQ, the inclination being in the transverse direction of the bolster. These meeting. faces are, preferably formed Q11 plates 19 which extend Without a break through the full cross. section of the king post at the planeof meeting. These plates are supported not only by the peripheral frame 20 of the post parts but also by suitably disposed webs 21. In order to avoid 4 Da ny slippage of the parts 16 and 17 in the longitudinal direction of the bolster, one of the plates 19 is grooved asat 22' andthe other plate is provided with a rib 28 adapted for engagement in the groove. Tt'is immaterial upon which of the members the operate to tighten the bolster The two -,introduced between the'member 16 and the tension member12, the inclined faces 18 v of thetwomembers 16, 17 being in engagement. The member 17 is now pressed into place and being slightly wedge-shaped, as will be readily seen from the drawings, will parts 16 and 17 are then connected together,

to lprev'ent'jthe part 17 backing out, by any suitable number ofrbolts-or' rivets 24 connecting the plates 19. l

' The operation of inserting a king post as described in the preceding paragraph is pos- ,sible' only where the tension member of the bolster is a fiat plate or where the specifications of vthe king post do not require it to embrace the tension member. In such cases, the king post is constructed preferablyv in three parts, as indicated in Figures 4; and 5,

the additional or intermediate part being designated 25 and the foot members 17f and 17 In assembling a king post of this construction, the head and foot members are placed in engagement with the compression and tension members respectively and the intermediate member 25 thendriven wedge- W186 between them and secured to both, The

meeting faces of the wedge and one of the other members will of necessity be inclined or out of normal to the post axis, as de scribed in connec'tionwith Figures 1 to 3, in order to obtain the desired wedging 'action. It will be understood, however, that in the three-piece king post all the meeting faces may be inclined, as is indicated in Figure 1, or that the meeting faces of only two of "the parts maybe inclined as'indicated in Figure 5. The detail structure of the mem"-' bers of the three-piece king post will be substantially the same as the detailed structure of the'two-piece post, that is to say, all the parts will preferably have tongue and groove connection In a three-part king post, it will be possible to drive the intermediate or wedge member in the longitudinal direction of the bolster and it'will be understood that, although thls method 1s not as desirable as driving in'the transverse directlon, it

is nevertheless contemplated and included in v the following claims. I a While the invention may be said to be designed primarily to provide for the repair of damaged bolsters, it will be understood that it maybe employed to facilitate the construction of new bolsters, as it willobviate the present necessity of connecting the tension member under necessarily great tension as the members may be connected together first and the king post inserted after wards. The plate 19 of the upper member 16 ofthe king post provides a shelf to sup port the king pin so that a headless pin maybe used without any danger of the same falling out or without the necessity of i any other means being used to hold the pin inplace.

Having thus described myinventiomwhat I claim is p 1. A king post comprising a body divided transversely into a pair of superimposed parts meeting along a line inclined withirespect to the axis of the post and extending entirely across the post.

2. A king post comprising a body divided into a pair of parts, one of which is insertable to extend entirely across the end of the other part to exert a'wedging action'therebetween and one of the members of the bolster.

3. A king post according to claim 1, in-

eluding means connecting the parts together to prevent relative movementthereofl I 4:. A bolster comprising compression and tension members connected attheir ends, and a sectional king post inserted between said members, one of the sections of the post being designed for insertion last to exert a wedge action to tighten the bolster, the engaging surfaces oi said sections being disposed symmetrically about the axis of the post.

5. In combination with a device according to claim A, means for holding the king post parts against slipping relatively to one another in a direction other than the inserting direction.

6. In combination with a device "according to claim 4, meansfor holding the king post parts against relative movement after insertion.

7. In combination with a device according to claim 4:, means for holding the king post parts against imdesirable relative movement during insertion, and means for holding the parts against any relative movement after insertion.

8. A device according to claim 4, in which the parts have tongue and groove connection. 3

9. A king post comprising an outer peripheral frame formed in a plurality of sec-, tions, plates connected between the parts of the frame in each of the several sections, the plates of each part being adapted for engagement with the plates of the adjacent parts, and Webs supporting the peripheral frame and said plates.

10. i A device according to claim 9 in which the parts of the post'separate in planes extending transversely of the post axis.

11. A device according 'to claim 9, in which the parts separate in planes extendingtransversely of the post axis, the plane of I separation between twoof the parts being out of normal to the axis.

12. A device according to claim 9, in

which the plates are formedto provide V tongue and groove connection'between the parts. I I

13. A king post comprising a pair of members abutting in a plane extending transversely of the post axis, each of said parts including plate upon which the abutting surfaces" are formed, saidgplate in oneof said parts serving asa king pin support, 50

and fastening members connecting said plates." g Y i g 14 A king postcomprising a pairof engaging parts, one being adapted to. extend entirely acrossthe inner transverse surface? of the compression member, and the other 'v to extend entirely across the inner transverse surface of the tension'member, the engaging surfaces of said parts being out of normal to the axis of the post.

15. A sectional king post comprising sections having 1ncl1ned engaging surfaces and J fastening members connecting said sections together and intersecting said engaging su r faces.

16. A king post comprising separate coma pression and tension member engaging'sections, and removablemeans'engaging-both of said sections serving to hold .saidsections' engaged with said members.

17. A king post. comprising engaging parts having inclined engaging surfaces, a tongue and grooveconnection between the engaging surfaces preventing lateral shifting thereof, and fastening members inter secting said engaging surfaces and preventing longitudinal shifting thereof.

In witness whereof, my hand.

ROSS o. S A

I have hereunto set

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