US1692657A - Car construction - Google Patents

Description

Nov. 20, 1928.

S. B. HASELTINEI CAR CONSTRUCTION Filed Sept. 26, 1925 2 Sheets-Sheet 1 Patented Nov. 20, 1928.

UNITE STATES 1,692,657 PATENT OFFICE.

STACYJB. HASEL'ZLIN'1 .1, or CHICAGO, rumors, assrexon, BY mnsnfi-assremms, r0

w. n. mmna -mc a conromrrou or DELAWARE.

' CAR CONSTRUCTION.

Applicatlonfilcd September 26, 1923. Serial No. 664,869.

This invention relates to improvements in' car construction.

A The object of the invention is to provide a simple, efficient and" inexpensive -means, especially adapted for mine cars, for effectively cushioning shocks under buff and draft, and wherein provision is made for coupling the cars in the usual simple manner.

In the drawingsforming apartof this specification, Figure 1 is a vertical, longitudinal, sectional view taken through the end portions of two adjacent mine cars, showing myimprovements in connection therewith. Figure" 2 is a partial, horizontal, sectional -view andpartial top plan view of the construction shown in Figural. Figure 3 is a transverse, vertical, sectional view corresponding substantially to the line 3-'-3 of Figure-2. Figure 4 is a vertical, longitudinal, sectional'view taken through one end of a mine car, illustrating a different embodiment of the invention. And Figure 5 is aview=similar to Figure 2' further illustrating the embodiment of the invention shown in Figure 4.

In said drawings, referring first to the embodiment of the invention illustrated in Figures 1 to 3 inclusive, eachmine car is shown as provided with a suitable heavy fiooring -l0, a vertical end wall '11 at one end, and a horizontally pivoted gate 111 at the. other end, the gate end of one car being disposed adjacent the closed end of the next car as shown in the drawings In carrying out m invention, I employ 'adraw bar 12 exten ing full lengthof the car and an auxiliary draw bar 13 at one end of each car, the draw bar 12 being 'in the form of a horizontally disposed plate secured to the upper surface of'the flooring 10 and the auxiliary bar 13 being in the form of a horizontally disposed plate se-- cured to the under surface of the flooring- 10. At the closed end' of the car, the bars 12 and 13 are secured in fixed position, preferably by bolts 14 and 15 passing through the respective bars and flooring,

a plurality of bolts similar to the, bolts 14 being provided at spaced intervals through. the length of the drawbar. The flooring 10, at the closed end of each car, is cutaway as indicated at16 to provide a recess adapted to accommodate the shock absorbing mechanism hereinafter described, and the corresponding end of the drawbar '12 and the auxiliary drawbar 13 extend outwardly beyond the end of the cut away portion of the flooring as clearly shown in Figures 1 and 2, the drawbar 12 passing through the end wall 11.- The outer end portion of the auxiliary drawbar 13 is oflset downwardl as indicated at 17 to accommodate a rein orcmg bar 18 extending transversely of the car and abutting the under surface of the flooring. At their outer ends, at the closed end of the car, the bars 12 and 13 are provided withfalined, longitudinally extending slots 1919, adapted to receive a vertically dis- 4 posed bolt 20 for sliding movement in a direction longitudinally of the car. The bolt 20 serves as a means for connectingthe shock absorbing mechanism, hereinafter described, to the car.

-The shock absorbing mechanism proper, located at the closed end of the car, as shown, preferably comprises two members A and B and two pairs of springs 0-0 interposed therebetween. The member A is in the form of a vertically disposed, transversely extending, relatively heavy late having a central extension 21 at the ront end thereof, upper and lower flanges 22 and 23 merging with the upper and lower faces of the extension 21, and side webs 24 connecting the flanges. A pair of pockets 25 are thus provided adapted to receive the of a hollow casting having spaced topand bottom walls 30 and--31 and a-front wall 32. The front wall 32 and the bottom wall are cut away as indicated at 33 to accommodate the shackle 28 for swinging movement,

and the front and bottom walls are reinforced adjacent the cut away portion by vertical 'webs 34.- The top and bottom walls which it is retained in position, a cotter pin being preferably provided to prevent accidental removal of the nut. Y

Additional means-is preferably provided to properly guide the sliding movement of the member B and prevent damaging and,-

distortion of the springs (}.C when the member B is'struclr from one'side, asv for instance, when the cars are on a curved track. This meanscomprises a pair of bolts 36 fixed to the member A at opposite sides thereof and each working in a pair of alined slots 37 formed in the upper and lower'walls of the member B, the upper and lower flan es 22 and 23 of the member A being per orated to accommodate the bolts 36'. The bolts 36 are retained in position by nuts at the lower ends thereof, the nuts being so adjusted. as to permit free relative sliding movement of the members A and B. Washers are preferably interposed between the upper and lower faces of the member B and the head and nut of each bolt, respectively. The bolts 36 may also be provided with cotter pins to prevent accidental re moval of the nuts.

The pair of springs OC is interposed between the members A and B and the same are located at opposite sides of the extension 21. Each spring C comprises an outer relatively heavy coil'and an inner-relatively lighter coil, and the same are held in properly centered position by lugs 137 on the plate A and the front wall 32 of the member B, respectively, said lugs extending into the inner coil of each pair. When mechanism is in normal assembled position, as in' Fig. 2, springs C-G are preferably held under a certain amount of initial compression by means'of the bolts 26 and 36, which serve to limit the relative separation of the members A and B.

The member B functions as a front follower and bufling plate, and the outer face of the front wall 32 thereof is rounded off at its opposite ends fora purpose hereinafter described.

At the gate end of each car the draw-bar 12 extends through the end gate. 111 and is secured to the flooring 10 by a bolt 39 extending through the flooring 10, auxiliary butting block 40 and a transversely extending car-body reinforcing bar 41. The flooring 10 at the gate end of the car is cut away as indicated at 42 to provide a recess to accommodate the coupling chain 27. The drawbar 12 at the gate end of the car, is provided with a downwardly cxtending flange 38 adapted to abut the inner Wall of the recess and serving to relieve the bolts 14 from some of the pulling-stresses. The

draw-bar 12 is also provided-with the usual I perforation as indicated at 43 adapted to receive the hook 44 at the adjacent end of v the coupling chain 27 The gate end of each car ISfilSO provided with a pair of butting plates 45, located on opposite sides of the center line ofthe carand adapted to co-operate with the member B at the oppositeend of the adjacent car. Eacli' of the buflin'g plates 45 is in the form of a hollow casting. orpressed plate telescoped over the projecting .end portion of the flooring 10- and reinforcing member 40, at one side of the recess 42. The. outer face of each bufiing plate is slightly rounded as indicated at 46 so as to properly'co act with the corresponding rounded portion of the end wall 32 of the member B, as the cars pass over a curved track.

In draft action, it .is evident that the member A will bepulled outwardly-from the chain 27. the outer e'ndsof the car end b springs being held by the. member" B, which in turn' i s held by the bolts 20 and 36, thus compressing the sprin s C. T The limit of outward movement of t e member -A is reached whenthe front ends of the'webs 24 engage the inner. side of the wall 32 of-the member B, the clearance between the webs 24 .and the wall 32 being sufficient to allow the springs to come into proper play. Thus the web's 24 act as a limiting stop serving to" avoid injury .tothe springs by preventing them from being driven solid under an unusually heavy shock, whether under pulling strains or in bufi'. 1

In a bulfing action, the member B is forced inwardly by contact with the bufiing plates 45 of the adjacent car, the inner .ends of the springs C, in this instance, being held by the member A which is in "abutmentwith the end sill or end portions of the flooring 10...

Referring next to the embodiment of the invention illustrated in Figures 4 and 5,

110 designates the flooring of each mine car and 111 the end wall. Each car is provided with a draw-bar 112, extending full length of the car, and identical in. all respects with that shown in Figures 1 to 3 except at the closed end, and the gate and .of the car is,

provided with a pair of buffing plates 14!) in all respects similar to the corresponding parts illustrated in Figures 1 to 3, inclusive.

The closed'end of each car is provided with an auxiliary draw-bar 113 substantially similar to the bar 13 previously described, the only difierence between the bars 112 and 113 and the bars 12 and 13-being that the former are perforated to accom modate the bolt 120 so that the bolt is positivelv held against movement relative thereto.

.The shock absorbing chanismproper, as shown in Figures 4 an 5, com rises a housing A; a follower B; a pair 0 spring caps C; a pair pair-ofsprings E;

of .spring followers D; a.

and av bearing plate F.

The housing A is in the formof a casting having spaced top and bottom walls 150' an The member 13 is in the form of a bar extending horizontally and provided at each end with a reoess155 adapted to pivotally accommodate a boss 156 on the corresponding spring follower D, the spring followers D bein thus mounted for pivotal movement. 'entrally, the member B is formed with an extension 157 provided with. a vertically disposed slot 158 adapted to slidingly receive the bolt 120, thereby permitting limited movement of the member B relatively to the housing A and outwardly from the car. The member B is connected to the chain 127 by means of a shackle 128 pivotally secured to the extension 157 by means of a vertically arranged pin 160. The rear face of the member B is rounded to a large radius as indicated at 161 so that the same may have rocking movement on the flat bearing plate F interposed between the same and the end of the flooring 110.

, mal position as shown,

The spring caps C are of like construction, each bemgin the form of a hollow casting provided with a laterally projecting peripheral flange 162 at the rear end thereof adapted to engage with a shoulder 163 at the inner end of the corresponding boss 154, thereby limiting the outward movement of the s rin cap. The springs E are interpose under initial compression when in norbetween the spring 1 followers Dand the caps C, suflicient clearance bein left between the spring followers D and t e flanged inner ends of the caps to permit the springs to come into play.

Outward movement of the member B is limited by engagement of the spring followers D with the inner ends of the spring caps C, these parts acting as a limiting stop serving to prevent damage to the springs through being driven solid. r

In draft action, the operation of the device just described is substantially the same as the operation of the device. described in connection with Figures 1, 2 and 3, the member B bein pulled outwardly from the end ofthe car y the chain 127, the outer ends of the springs E being held by the caps C,

engage the flanges 162 The top and bottom walls straddle resisted by the spring necting said bufiing-mem which in turn are held lby-thelianges thereof engaging the shoulders at the inner ends of the bosses 154; The limit of outward movement of the member B is reached when the outer faces of the. spring of the caps C,

In a buffing action, the caps C are forced inwardly by contact with the plates 145 of the adjacent car,

movement .of the inner ends of the spring C-C ment of which in turn is opposed by the member B abutting th'e'we'ar plate F. p

In the form of the device shown in Figures 4 and 5, it will be noted that I obtain a balanced resistance in both buff and draft regardless of the forces being applied lel to or at an angle to the center line of followers 1) in this instance, being f followers D, moveparal-- the car, due to the rocking draft member and the spring caps D which are rock:

ably mounted thereon. Furthermore, even though a. buffing, force is applied initially solely to one of the spring 'cap's'C, nevertheless, I will obtain approximately the resistance of both springs, due to the bar B rocking so as to shift the fulcruming point,

decreasing the lever arm on that side to which the pressure 18 applied and increasing the lever arm between the fulcruming point I and the other spring.

I have herein shown and described what I now consider the preferred-manner of carrying out the invention,'but the same is merely illustrative,

and I contemplate all changes and modifications which come within the scope of the claims appended hereto.

I claim:

1. In a car, the combination with .a'drawbar fixed to one end of the car and projecting outwardly therefrom, said drawbar being slotted; of a bufling member; a pin fixed to said buffing member and working in the slot ofsaid drawbar; a I draft member adapted to abut the end of the car, said bufling and draft members being movable relatively toward and from each other cushioning means inter osed between said bull'- ing and draft mem ers; and means for detachably connecting the draft member toan' ad'acent car.

amine car the combination with a' main draw-bar; of an-auxiliary drawbar; said main and auxiliary drawbars being fixed to the car' andpro1ecting beyond the end of the same; a draft member working between said main and auxiliary drawbars;

a bufling member straddling said main and auxiliary drawbars;

her for relative movement to each otherand relative to the main and a uide pin for con-- er and draft mem auxiliary drawbars;

and a-spring resistance interposed between said 'bufiing' and draft members.

.3. In aca'r, the

structure ofsaid car having a floor provided combination with the end inoperative" position to i be disposed withindraft members';

the"6utermost limits of said bufiing and the latter fwheninoperative' position; and cushioning means interposed 1 between said members. 4. In'-acar, the combination with a draft member mounted at one end'of the car and held againstmot'ementinwardly otthe car, saiddraft membe'r extending to both sides of the center line of thec'ar and having a a centralpi votal slotted connection with a vertically extending pin carried by said car, to permit mOYBinent of said draft member in a substantially horizontal plane; of a buffing' member adapted to be actuated by di-' rect contact with'an adjacent car, said memberbeing connected &at its opposite ends to sa'id'car to holdsaid'bufiing member against outward movement i and 1 permit limited inward movement thereof and cushioning means inter osed between said draft and buifing 'mem ers at opposite sides of said pivotal connection, "said draft member be ing provided with a central coupling ele 'r p- I i a and 'exten'ding outwardlynof V ment adapted to z detachably connect said draft" member to fan adjacent car. ff fl -i, "5i In a car,- thc-combination with a draft member; of Pa buffing meansjadapted {(0 be actuated by Contact cushioning means interposed between said draft memberand said buffingmerhberiflnd means for equalizing resistance on saidcush-y ioning meanswith respect 'to said bufiing and draft members draft when the actuating force is' applied theretoat an angle to the normalmovement of the draft and butfing members. Y 6," In a can'the" combination'with having an engaging portion adapted'toabut said car to limit inward moi'emcnt thereof, said draft member being pivotally" connected to said car to'permit limited outwardmove with "an adj acent' car; 1

during both buff and .member mounted-at one endof the/car and ment thereof, said-engaging portionbeing curved buifin'g means extending "to F both sides of the center line of thecar,*-=and including spaced caps movable inwardly-with respect to said buffing means" "and-"limited against outward movement; followersrock ably carried by. the opposite ends of {said draft member; and cushioning means interfposed between saidcaps and said iollowe'r'ss In witness that' I claim-theforegoing l have hereuntosubsoribed my name thisfilslt day of September, 1923.?

Images