US1324820A - hilpert - Google Patents

Description

lVl. G. HILPERT.

SINGLE TURN TABLE CONSTRUCTION.

APPLICATION FILED APR. 29. 191e.

Patented Dec. 16,1919.

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M. G. HILPERT.

SINGLE TURN TABLE CONSTRUCTION.

APPLICATlON FILED APR. 29. |918.

Patented Deo. 16, 1919.

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M. G. HILPERT.

SINGLE TURN TABLE CONSTRUCTION.

APPLICATION FILED APR. 29, 1918.

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APPLICATION FILED APR'. 29, 1918- Patented Dec. 16, 1919.

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MEIER G-EO. HILPERT, 0F HARRISBURQPENNSYLVANIA, ASSIGNOR T0 IBETHLEHEM STEEL BRIDGE CORPORATION, OF vBETH or DELAWARE. I

LEI-IEM, PENNSYLVANIA, A, CORPORATION SINGLE VTURN-'.IABL'E coNsTRUc'rIoN.

Be it known that I, MEIER GEO. Hmmm a citizen of the United States, residing at Harrisburg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Single Turn-Table Construction, of which the following is a specification.

This invention relates to turntables which are particularly adapted and designed 'to reverse 'locomotives or other rolling stock or placerthe same on another track alinement, and has particular reference to a turntable construction of the multiple span type. v

'I o this endthe invention contemplates a turntable of the two-span tandem type which involves a simple and practical construction `having a minimum number lof partswhich not only renders the entire-structure more economical to build, but at the same time permits of u tilizing structural members posed to utilize a single central cross girder construction which may be supported on a sultable center or pivot to concentrate all of the variable loads and shocks from either or both spans on the center.

A further object of the invention is to provide a single central cross girder Which not only has the advantage of being lighter than the usual two cross girders, but which permits of greater security in attaching'the I adjacent ends of the spans, which' is an eslatter at or` pecially desirable feature because preserving continuity of track under the constant shocks of running heavy locomotives and rolling stockon and ofi" of the turntables. That 1s to say, a single cross girder of the type proposed stability for both spans, although permitting of a slight flexing of the near the center to better take care'of the varying loads as will hereinafter more fully appear.

A further object of the invention is to providev a single cross girder construction which permits of the sllght flexing of the lspans abovereferred to in a thorough and'` practical manner. and under all conditions of use such as the variability of tracks on opposite sides of the pit, settlement of give a maximum strength whereby .by the present invention- Specication of Letters Patent.v Patented Dec.v 16, 1919. Applicatin filed April 29, 1918; Serial N0.` 231,4 43.

tracks. and any slight unevenness of cenmiddledepth of the span girders'so as to reduce the movement of either top or bottom edges. to thus preserve the continuity and surface of the turntable track.

A still further object of the invention is to provide a novel lateral system which is particularly adapted to the tandem type of turntable span construction involving a single cross girder` as previously set forth, whereby the thrusts and stresses placed upon the table may be readily taken care of.

'l That is, theinvention also proposes to provide in combination with the single cross girder and flexing connection, a lateral system which while allowing the transverse flexing of the cross girder. on the center bearing to evenly distribute the turntable loads on said center, and while also allowing the ends to adjust themselves to the several supporting trucks, is also nevertheless rigidv and stron against' all other forces and meets all of t e'requirements due to heavier rolling stock and greater power which is utilized to turn the table more rapidly than has heretofore been the case.

Furthermore, to render 'the lateral system more eifective, in combination withthe single cross girder construction, lit is pra'-V posed to arrange the same throu h the turntable in such amanner that 1t w1ll pass through the center of lexure, that is,

through the point of no fleXure. Thus, since the lateral system is intended to take care of the power and braking thrusts laterally i in the direction throughout the length thereof, it should be as direct as possible,A

and hence. extends preferablyfrom `point 'of power application to and through the point of `no flexure. This. is' thoroughly sprovided for 'bythe novel arrangement referred to.'

VViththe abovev and other objects in view which Will more readily. appear as the description of the vinvention progresses, the latter consists in the novel combination, vand arrangement ofv parts hereinafter set forth and claimed,

' ing the' cross Preferred and practical embodiments ofl the present invention are illustrated in the accompanying drawings, in which:-

Figure l is a vertical sectional view of a turntable of the tandem span type including a single cross girder constructed in accordance with the present invention, and also showing the lateral system extending from the point of power application to and through the point of no fleXure.

Fig. 2 is an enlarged top plan view of the construction shown in Fig. 1 illustrating in slightly larger form the construction of one span and the cross girder, and also the lateral system.

Fig. 3 is a vertical cross sectional view taken at the center of the turntable and showing the turntable center and single cross girder in elevation.

Fig. 4 is a vertical sectional view taken at the intermediate portion of one of the spans showing how the intermediate vertical cross bracing means only extends part of the depth of the girders comprising the span, z'. e. from the top of the girders down to the plane of the lateral system.

Fig. 5 is a vertical cross section taken at the truck end of the span.

Fig..6 is an enlargeddetail horizontal section showing one form of cross girder construction and a portion of the lateral system.

Fig. 7 is a vertical sectional view showgirder construction of Fig. 6 in elevation.

Fig. 8 is a horizontal sectional viewT showing a further modified form of cross girder.

Fig. 9 is a view similar to Fig. 8 showing a still further modified type of Ycross girder and a special bolt device for carrying the lateral system past the cross girder on the outside of the girders of the adjoining spans.

Fig. 10 is a vertical sectional view taken longitudinally of the turntable showing how the lateral system may be placed along the plane of the top flanges of the girders of each span, and may be thence drawn down at the ends to the point of noilexure.

Fig. ll is a detail elevation of a cast cross girder.

Fig. 12 is a detail top plan view of a cross girder involving a special form of flexing pivot.` A

Fig. 13 is a detail side elevation of the construction shown in Fig. 12.

Similar reference characters designate corresponding parts throughout the several figures of the drawings'.

ln carrying the present invention into effect, it will be observed from Fig. l of the drawings that it is proposed to provideia divided or tandem span turntable which essentially consists of the separate span sections A-A each of which consist of the vertical Lsaaeao B-B is provided with a lateral bracing system designated generally as E which gives ther girder suflicient strength transversely to take the transverse and longitudinal thrusts of the span loads and carry the same to the point of no lexure which is the pivoting plane.

Referring now more particularly to the divided span construction it may be 'noted that the girders B--B of each span are pref erably of the I-beam type and may be built up structurally by web plates and angle ironsto produce the usual web for the beam and the top and bottom flanges thereof. rlhat is to say, each of the girders B may consistI of the central vertical web plate l having secured thereto the top angle irons 2 and bottom'angle irons 3 as clearly shown in Figs. 3 to 5 inclusive of thedrawings while the intermediate portions of the upper and lower surfaces ofthe top and bottom ianges thus formed may be provided with suitable reinforcing plates 4. The said ver-4 tical webs 1 of the girders also preferably have on their inner and outer faces at suitable spaced intervals'a plurality of vertical stifening bars 5, While the truck end of each girder .is made of considera-ble less depth than the body thereof and is provided with suitable transverse bracing webs 6 as clearly sho-wn in Fig. 5 of the drawings. This construction of the girders B provides a relatively deep girder section from its inner end to a point adjacent its truck end, at which point the said girders are made shallower, or in other words are under cut to .provide clearance for the b ed of the track T on which the wheels W of the turntable trucks travel. rl`hus, where the v greater strength is required the girder of each span is of greater depth and is therefore better capable of withstanding?) the stress of the load imposed thereon, which as yis well known, is of 'varying magnitude and rela-` tively great moment.

The inner sides of the girders B are connected by the transverse brace elements 7 arranged at suitable intervals and each preferably consists, as shown, of the top and bottom angle members 8 and 9 whose vertical lianges have securely fastened thereto the end tie plates 10-10, ll-ll andthe bracing system E, and

intermediate plates 12-12, which plates are Y connected by the crossed angle braces 13- 13, 111-14. This arrangement provides a strong and rigid union for the vwebs of the` opposite girders B-'-B, andas shown the same extends from the top ofthe girder down to the horizontal plane of the lateral system.

The foregoing structural details of the girder construction of the separate' spans may be varied according to requirements without in any way departing from or affectin ,the salient features of the inven-- tion. ne of these salient features is, as heretofore indicated, that of providing a two-span, turntable with a'exing joint or hinge possessing the capacity of permitting a slight vertical flexing of the inner ends of the separate span sections, while at the saine time being sufliciently strong and rigid to resist and sustain loading thrusts in all other directions. Various forms ofO construction may be employed to provide a flex- .ends referred to.

In the lform of construction illustrated i-n Figs. 6 and 7 of the drawings Ithe flexing joint or hinge is consolidatedwith elementsof. both the span andsingle Across girder, and with particular reference to this consolidated structure, it will be first observed' that opposite faces of each of the girders B have secured thereto the vertically disposed sets of angle irons 15-15 and 16-16, which angle irons are intendedtoconnect the spans with the central cross girder C in s uch a manner that each span'will be rigidly and securely connected longltud-inally and laterally, but lat the same timepadapted to vflex vertically under the varying -condition of load to properly and evenly ydistribute and concentrate the 'entire load fof the connected spans onto the turntable center kD which is located below the plane of the lowe r most anges of the girder and also the bottom of the-'cross girder as clearly' shown in' Figs.

- 1 and' 3 of the drawings.l -The single cross girder unit, shown in these-figures of the drawings, consists of a pair of .duplicate cast frames designated generally aSlF which may beso arranged as to provide a clearance j forms apart of thisfy all all 17 at'. their inner ends to accommodate an electrlc conduit or cable post 18. These cast frames F, are as shown in dotted-lines lin Fig. 7, of rectangular form and include the upper and lower horizontal attaching bars 19 and 20 and theintermediate bolting web 21, while the innermember 22 lthereof constitutes a verticalbolting part and the outer member 23 thereof is of relatively greater width and of special construction forming a coupling and hinging web for the opposite alined girders of the separate turntable spans. That is to say, the outer member 23 of the cast frame FN is adapted to have secured-thereto by a plurality of bolts, rivets or equivalent fastenings 24 the vertical terminal angle members 15-15 or 16-16,

as the case may be, of the adjoining girders frame 23 between the vertical bolting areas 1s cutaway or recessed on both sides as indicated at 25 in Fig. 6 of the drawings, except for a point somewhat below the middlel lthereof'as at 26 which latter remains in the n plane of thebolting surfaces of the opposite faces of the frame, to thereby providevin the turntable, while the portion of the effect a rigid pintle element about whichxv the relative flex-ing movement of the vertical Y webs 1 ofthe, girders may take place. The location of this horizontal pintle oint 26 i is at the point lof no flexure, or t e ypoint where the effect of the superposed load exerts no strain Vor stress in either one directionor the other from a perpendicular plane. The flanges of the angle member 15-15 or 16-16 are of course secured to -the fulcrum'or pintle member 26 by meansv of -theg extra fastening elements 27, thusicc rigidly anchoring the 'beams or girders at. ,i

their'points of no flexure to the cross girder.

' It will of course be understood that each girder Bof the span is similarly attachedto one cf the cast frames F, and in order to provide in effect a solid singe cross girder, the said frames havel riveted or otherwise secured lto the opposite faces to rigidly unite and connect the said frames thereoffby means-of the fastenings 28, the I cross girder web plates 29 and 30. These plates have securedto ,their outer faces the upper and lower horizontally disposed stiffening angles 31 and 32 and the intermediate v i' reversely disposed stift'ening .angles 33-34 whosehorizontal anges are spaced. apart as at 35 to accommodate the obliquely disposed able angle members 39 on the'span girders system E.

members 33 and 34, as at `35, also rovides for the accommodationof 'a'central ie-plate v 'inside tie elements 36 of the lateral system Y `whose opposite ends' are respectively conv I 'nected rigidlysby the fastenings 37 to theangleme1nbers 33 and 34, and at 38 to\suit and located in the same plane'as the lateral The lspacing of the-horizontal,- ,flanges of the intermediate transverse'angle 40 which may be rigidly secured to the said angles 33 and 34 by means of the fastenngs 41, and projects beyond the edges of the horizontal members of said angle elements 33 and 34 whereby the brace elements of the lateral system E may be rigidly secured thereto by the fastenings 42 or their equivalent.' All of these points of attachment are located within the horizontal plane'termed herein thep plane or point of no fleXure which includes the pintle points 26.

To further assist in bracing and stabilizing the central cross girder, the intermediate portion thereof may be provided on opposite sides thereof as shown in Figs. 6 and 7 with thel reversely disposed and vertically arranged angle members 43 which are in two sections, respectively arranged above and below the reinforcing elements 33 Vand 34. Thus, it will be apparent that a strong and rigid single cross girder is provided by the form of construction shown in Figs. 6 and 7 I of the drawings which not only provides a flexing point for the opposite girders of each span, but also provides a central cable post clearance for accommodatingthexconduit or cable post that supplies electrical energy to the power units which drive the turntable.

In the 'structure described it will be apparent that a rigid union horizontally is eected between the adjoining girders of the separate span sections, at the pintle point 26. Hence above and below these pintle points the unattached portions of the terminal girder angles 15 and 16 will necessarily yield or flex sufficiently to allow for the slight flexing or hinge-like action between the connnected ends of the span girders when the load is imposed thereon., thus perj mitting the proper and equal distribution of f fieXure.

tinuity of the lateral system and maintain A the load onto the pivotin center through the cross girder. 1t will gbe also observed that the lateral system primarily consisting of the diagonal bracing Ybetween the span girders has a direct and rigid connection with cross girder within the plane of no And, in order to preserve the conits bracing effect longitudinally throughout the entire turntable,Y the brace elements 36 are utilized as the inside tie members v between the two spans for the lateral system, and separate outside tie members 44 are provided. These' outside tie members 44 con- 'sist of one or more horizontal web plates arranged longitudinally of the structure,

their ends these outside tie members 44 are suitably fastened as at 44a to -;he span'.

girders, and at an intermediate point, as at 44b are wedged between the stationary lugsy 44c projecting outwardly from the edges of the frame 23.

and 7.

Beyond the connection of the lateral system with the cross girder, the said system may extend in the samev horizontaly plane throughout the span sections as shown in Fig. 1, or as suggested in Fig. 10 may be deflected so as to liesubstantially in the plane of the top or compression chords of the girders, or if desired or required may be dropped to lie substantially in the plane of the bottom or tension chords of the girder, or both. In all cases however, the lateral system connects with the central cross girder in the plane of no fleXure, and will effectively act as a stay for the center of the cross girder opposite the line of no fleXure, thus giving the' cross girder ample capacity for taking and resisting the longitudinal thrusts of the span loads.

Such modified structures as shown in Fig. 8 of the drawings would obviously carry out all of the features and functions of the in-l vention, and as will be observed from said figure a modified form of cross girder is shown, the same consisting of a pair of web plates 45 which are drawn flatly together at both ends while their intermediate portions are bowed and held apart by a plurality of filler elements 46 to provide a clearance for the cable post 47, while auxiliary fillers or spacingv elements 48 may alsol be' utilized. The opposite end portions of the webs 45 which are drawn together areadapted to have the ends of the girders B secured thereto with angles 15 and 16 in substantially the same manner as in the preceding described form of cross girder, and in order to providekthe necessary clearancefor ac commodating the flexing of the opposite girders, the opposite sides of the webs 45 are rovided with the spaced vertical filler members 49 while at the point of no fleXure there is provided a transverse pintle element 50 shownin elevation in Fig. 8. The angle members 15--15 and 16-16 are connected to the filler members 49 and 50 which together are substantially H-shaped to provide 'a rigid connection between the spansland the cross girder. lIn this type of girder it is also prov posed to'utilize suitable horizontal stifening angles 51 vwhich coperate with the oblique bracing plates 52 to constitute the inside ties of the lateral system and brace the webs 1 of the girders against oblique strains, while at the same time vertical stiffening angles 53 may be utilized to perform the ladditional strengthening function for the central portion of the web plates 45. The lateral system E may also be secured by fastenings 54 to vthe anchor plates 55 ar\ ranged on opposite sides of the cross girder and located in the plane of no flexurethereof, and the outside ties 44X forb'ridging the joint may be the same as those shown in Figs. 6

A Sau further modiedform of built up A y1324.820 i -15 and 16-.16 of the girder elements as 'isprovided in the other forms of the invention. The mourned form of crossgirder shown in- Fig. 9 illustrates another way of continuing the lateral system through the point of no fleXure on the outside of the girders B by means of the bolts 61 having the usual heads 62 and the usual nuts 64,

and which pass through the angle members 15-15 and 16-16 rigidly carried by the opposite girder elements B-B. Obviously,

. when the nut 64`is tightened up on the bolt i 61 the opposite span girders will be'rigidly connected at the point of no iexure inthe same manner as the built up outside tie mem-v ber 44 connects the opposite span girders in the other forms of the invention. To assist the outside tie bolt 61 of the lateral system in maintaining the desired rigidity at the v.point of no flexure, it is proposed to also employ the obliouely disposed inside tie members 65 which connect with the transverse angle plates 66 bolted to opposite faces of the separate webs 66*66. In this form of the invention it will also be observed that in order to produce the desired vertical stiffness and necessary reinforcement of the cross girder vertical angles 67 are also employed, as are likewise the anchor plates 68 located in the plane of no flexure of the cross girder and adapted to have secured thereto by fastenings 69 or other equivalent the obliquely disposed brace elements of the lateral system E.

A still further modified form of cross girder is suggested in Fig. 11 of the drawings. This cross girder is made of a single casting, whereby absolute solidity and rigidity thereof is insured, and as will be observed from the drawings all of the important features and characteristics of the cross girders heretofore T-hat is to say, this cast type of cross girder includes the opposite coupling end portions 7 Q which are provided with the vertical bolting faces 71 and horizontal pintle elements 72 are the spaced lugs while projecting from their outer edges 73 which provide the for the outside members of the lateral system. The web portion 74 of the cross girder is provided with'a horizontally extending anchor portion 75 1ocated' within the plane of` no exure for the purpose of receiving the ends of the lateral necessary 'clearance pair of relatively .heavy The said spaced ends described are preserved.

1s provided with a saddle base 76 for the up er shoe of theload distributing unit.

sfurther illustrating the range of modifications comprised within the scope of the presentinvention, reference may be made to Figs. 12 and 13 of the drawings which show a special typeof hinge located adjacent to the cross girder and adapted to-'permit of a relatively greater degree of flexing between the span sections. As will be observed from these iigures the vertical web la of one of the span girders is carried beyond the plane system, and the extremelower edge thereof of theweb of the cross girder C and has f fitted to opposite sides thereof the hinge plates 77 whose spaced outer ends 78 provide ample clearance for the tenon end 79 of'the vertical web 1b of the opposite cross girder. 78 of the hinge plates 77 and the tenon end 79 areprovided vwith suitable registering openings 80 in the plane of the point of no flexure for receiving a relatively stout pivot-pin 81 which may be l held against axial disnlacement by means of a key 82 or its equivalent. It' will lof course be understood that the lateral system E is also employed in connectionwith this type of hinged joint, the iimer'end of the same connecting as at E with the anchor plate E2 located in the plane of no-iiexure on the cross girder. A

From thefforegoing it will be apparent that according to the invention the idea of a turntable including opposite span sections flexibly' connected, in combination with a lateral system having a rigid connection with the cross girder at a point; in the plane of the point of no iexure is preserved .in all forms of theinvention, andit will'of course be understood that various changes in the' form, proportion-and minor details of oon- .struction in the turntable proper may be" resorted to and still come within the scope of the foregoing cardinal features of the invention.

I claim' 1. A turntable construction including` opposite span sections exibly connected, and a lateral system having a rigid connec- Ition through the line of no tlexure. 2. A turntable construction including -separate span sections, a central cross girder, and arlateral system having a rigid connection with the cross girdervthrough the line of noflexure. ,Y

3, A turntable construction yincluding separatespan sections flexibly connected, a

single cross girdercentrally located, and-1a v lateral 'system having a rigid connection.

with the cross girder through the-liiie` no flexure.

4. A turntable -cnstructi01`. i

separate spanV sactions', and each having a pair of lspgm-.ed g1rders a`s1 11`1`gle cross glrder connectingthel opposite' sp'aii" girders `adjacent the flexing point, and a lateral system having a rigid connection with the cross girder through the line of no lleXure.

5. A turntable construction including separate span sections, a single cross girder connecting opposite span girders adjacent the flexing point and provided with intermediate anchoring plates, and a lateral system rigidly connecting with said plates.

6. A turntable construction including separate span sections, a single cross girder connecting opposite spanv girders adjacent the flexing point and provided with intermediate projecting anchoring plates lying within the plane of no iieXure, and a lateral system rigidly connected with saidplates.

7. A turntable construction including opposite span sections, and a cross girder having connections with the adjoining span sec# tions forming flexing joints therefor.

8. A turntable construction including opposite span sections, and a single 'cross girder having connections with the adjoining span sections forming liexin'g joints therefor.

9. A turntable construction including op-y posite span sections, and a cross girder having` connections with the adacent span sections forming flexing joints therefor, and a lateral system connecting with the cross girder through the plane of no llexure.

10. A turntable construction including separate span sections, a cross girder having a jointed connection with the end of the span sections formingflexing points therefor, and a lateral system connecting with the cross girder through the plane of no iexure and including horizontal rigid tie members rigidly connecting with both span sections and bridging the joints.

1l. A turntable construction includng separate span sections, a cross girder having a jointed connection with the ends of the span sections forming flexing points therefor, and a lateral system connecting with the cross girder through the point of no flexure, and including horizontal outside rigid tie members rigidly connecting with both span sections and bridging the points.

12. A turntable construction including separate span sections, a cross girder having a jointed connection with the ends of the span sections forming flexing points thereof, and a lateral system connecting with the cross girder through the point of no lexuie, and including horizontal outside and inside 'rigid tie members rigidly connecting with both span sections and bridging 'the points.

13. A turntable construction including separate span sections having girders and a flexing joint comprising opposite and iexin flanges on adjoining girders, and a rigi coupling member clamped between said opposite flanges and having a rigid pintle element., v

14. A turntable construction including opnaaaea l posite span sections consisting of relatively deep girder elements, a single cross girder connecting the inner end of said span sections, and a center bearing for rotatably supporting Vthe entire turntable, said center bearing being disposed entirely between the plane of the girders of the span sections and connected to the cross girder.

l)15. A turntable construction including opposite span sections consisting of relativelyv deep parallel girder elements, a lateral system connecting the same, a single cross girder having its opposite side portions -fornied to provide a flexing clearance, and

jointed span sections, a center and a single cross girder arranged over the center and connected with the separate span sections.-

19. A turntable construction including two span sections iexibly connected, theY center, and a single cross girder arranged over the center and connected to both span sections at their joints.

20. In a multiple span turntable, a cen,- trally located cross` girder `-construction, within which is located a plane of no leXure, two similar span sections connectedto the cross girder construction for vertical Hex-v mg, and a rigid lateral system continuing through the span sections and cross girder construction in the plane of no fiexure.

21. VA multiple span turntable including a centrallylocated cross girder construction and two similar span sections having a connection with said crossgirder construction to admit of verticalexing.

22. Ina multiple span turntable, the c0m bination of two span sections placed in tandem, a cross girder placed between and ieXibly connecting the adjacent ends of said span sections, and means for maintaining a plane of no llexure.

23. A multiple span turntable including separate span sections, and a centrally located cross girder having a divided web for clearing a central stationary power st.

24. A multiple span turntable incluoing separate span sections, and acentrally located cross girder having a cut and spliced web for clearing. a central stationary power post.

25. A turntable construction including opiis posite span sections flexibly connected with the line of no flexure located between the span Hanges, and a lateral system having a rigid connection with the cross girder through said line of no iexure.

26. A turntable construction including opposite flexibly connected span sections, and a cross girder located in the plane of no ilexure between said span sections.

27. A turntable construction including opposite span sections, and a single cross glrder flexibly connecting the inner ends of said span sections and including hinging means for said sections disposed in a transverse line lying within the vertical plane of the '15 cross girder.

In testimony whereof I hereunto affix my signature in the presence of a- Witness.

`Witness EMoRY L. Gnorr.

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