US1001283A

US1001283A - Folding car-step.

Info

Publication number: US1001283A
Application number: US59128810A
Authority: US
Inventors: John Kinzman
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-11-08
Filing date: 1910-11-08
Publication date: 1911-08-22
Anticipated expiration: 1928-08-22

Description

J. KINZMAN.

FOLDING CAR STEP.

APPLICATION FILED Nov.a,191o.

J. KINZMAN.

FOLDING GAR STEP.

APPLICATION FILED Nov. s. 1010.

Patented Aug. 22, 1911.

2 BEBETB-SEEET 2.

S14/vanto@ JOHN KINZIVIAN, OF LAPORTE, "INDIANA,

FOLDING CAR-STEP.

Leonesa.

Specification of`LettersCPatent.

`ltatrnated Ang. 22, 191th Application filed November 8, 1910. Serial No. 591,288.

To alt whom it may concern:

Be it known that I, JonN KINznaN, a citizen of the UnitedStates, residing at Laporte, in the county of Laporte and State of Indiana, have invented certain new and useful improvements ,in Folding laiSteps, of which the following is a spccitication.

rlhis invention relates to folding car steps, and more particularly to those which may be conveniently operated by an authorized attendant from the platform of the car.

The object of the invention is to provide a durable, practicable and etlieicnt device of this character which .may be readily attached to the step of th-e car, whereby an additional step is provided for the convenience of passengers on entering or leaving the car, said step being so attached to `the ear as to be readily moved out of its operative position when not `in use.

Another object of the invention is to provide means for ollierating the movable step by suitable pinions, and being further pro vided with a suitable locking device for holding the step in a fixed position when in use.

A further object o'f the invention to so construct a device of this character, whereby` a minimum amount of power may be exerted by the operator, and the folding step placed in close proximity to the platform of a station or depot.

@ther objects and advantages will `be ap parent from the following description and it `will be understood ythat changes 1n theg specific structure shown and described may be made within the scope of the claims with- I out departing from the spirit of the lnven` tion.

`In the drawings, Figure l is a side elevation of the invention showing the folding step in an open o1' operative position. l? 2 is a similar `view of the opposite side of the same showing the step in a folded `position under the usual steps, preferably, of `a vestibule or Pullman car. Fig. 3 is a front elevation of the device with the step in a lowered or unfolded position, and showing a portion of the platform in a raised position. Fig. 4L is a bottom plan `View of the device, showing the step in its folded or inoperative position.

Referring to the drawings, l designates the usual sides of the car step having secured thereto the usual steps 3. Boltcd or otherwise suitably secured to the outer sides of the steps l are plates 41;. A. transverse of the car step and `has its opposite ands passed through `the sides 'l of the step-and plates 4T. ltigidly secured to the shaft 5 are collars (3 and T being provided with extcn sions 8 and Si) to which are suitably secured the sides 'l0 and l1 of the folding orauxiliary step 12. iiurroululing the rotatable transverse shaft 5 are coil springs 153-13, having one of their terminals secured to the shaft 5 and the other to the underside of the lower step 3.

To one of the ends of the transverse shaft 5, and adapted to rest against the outer face of one ofthe plates lt is a pinion 1l, said pinion being rigidly secured upon the end of the shaft by suitable means. Meshing with the pinion Alfl is a larger pinion l5, the saine being secured to the plate f t upon a stub shaft lo. lhe other end of the shaft 5 l,a1-ries a collar 17 to prevent any undue lateral movement of the shaft 5.

fICccentrically arra'nged'upon the pinion 15 an outwardly projecting stud 21,8 having pivotally secured thereto a connecting `rod 1S) having one of its ends pivotally secured to a bell crank lever 20. (The bell crank lever Q0 may be conveniently pivoted to a portion of the platform in 'any suitable manner, which will `permit the handle 2l of the hell crank lever `to project above the platform so `that the same can be readily grasped by an authorized attendant.

Upon the under fare of the, extreme lower steps 5i is a metallic strip having formed in its center an outstanding stud '253. Upon each end of the strip Q2 are provided `U-sliapedbolt, carrying members Q11-, said ll-shaped bolt carrying members being secured to the strip 29. by strap irons Q5. livotally mounted upon the stud is a lever 26. lt will he noted that this lever Qt is 'formed or twisted in such a `manner that vertical portions 27 and "2S are vformed in said lever, and having one of its ends I'urovided with a horizontal face 2t). 'lhe vertical portions 27 and 52S are provided with openings tl() and 3l, the opening 3l being internudia'te, the pivotal point ot' the lever Qt'i andthe horizontal face 29. The horizontal portion of the lever 2G is 'provided with an opening 32 adapted to receive a bolt 33 `to pivotally connect a clip 34 thereto. Adapted to pass through the openings 3() and 31 are links and 36, each of which is screw threaded for a certain distance of its length to receive lock nuts 37 and 38, the other end of the links being pivoted to the inner ends, as at 39 of the drawings, of sliding bolt latches 40 and 41. These bolts are adapted to be mounted in suitable registering openings provided in the U-shaped bolt carrying members 24 and are adapted to freely slide therein when the lever 26 is shifted. Surrounding the bolts 40 and 41 are coil springs 42 and 43, said springs having their terminals resting against the inner walls ofthe U-shaped members 24 and their outer terminals resting against the inner portions of the en larged heads of the bolts 44 and 45 of the latch bolts 40 and 41. Collars 46 and 47 are carried by the sliding bolt latches, said col lars being adjustably mounted upon the bolt to limit the movement of the latch bolts. These bolts are adjusted in such a manner as to allow the heads of the same to project sufficiently beyond the outer walls 48 and 49 of the U-shaped members 24 to engage openings 50 and 51 formed in the sides 10 and 11 of the .folding or auxiliary step 12, to securely lock said step in its unfolded or operative position.

Suitably attached to the clip 34 is a cord or wire 52, said cord or wire passing through an opening 53 formed near the bottom edge of one of the sides 3 of the car step and adapted to pass over a pulley 54, said pulley being suitably mounted upon the outer side of the car step, land continuing upwardly to pass over a pulley 55 and to be suitably connected to a fastening device 56, said fastening device being secured adjacent the hinged end of a portion of the platform 57. I1he platform 57 is of the usual form used in connection with vestibuled or Pullman cars. From this construction it will be noted that the cord or wire 52 is of sufiicient length to allow the latch bolts to engage the openings 50 and 51 in the sides 10 and 11 of the folding step only when the hingedportion of the platform is in a raised or open position, and when the hinged platform is lowered or closed the cord or wire will pull the lever 26 in the direction of the arrow, thereby withdrawing the bolts from the openings 50 and 51 and allowing the auxiliary step 12 to automatically return to its folded or inoperative position.

Secured upon the front edge of one of the steps 3 are buffers 58 so arranged that the sides 10 and 11 of the auxiliary step will contact with the same when said step is automatically released, and folded in its inoperative position.

The latch bolts 40 and 41 have their heads 44 and 45 beveled as designated by the numeral 59, so that the same will readily snap into the openings 50 and 51.

To operate the device, it is only necessary that the attendant raise the hinged portion of the platform, and grasps the handle of the bell crank lever, pulling the same in the direction of the arrow, thus pulling upon the connecting rod and rotating the pinions 15 and 14 in the direction as shown by arrows, thereby rotating the transverse shaft 5 against the tension of the springs 13-#13 until the auxiliary step is swung into its operative position, and the latch bolts engage the openings 50 and 51 in the sides 10 and 11 of the steps. Now when it is desired to fold the step in its inoperative position the hinged portion of the platform is dropped, thereby pulling upon the cord or wire 52 which swings the lever 26 which in turn withdraws the latch bolts from engagement with the openings in the sides of the auxiliary step allowing said step to return to its folded or inoperative position.

What is claimed is:

1. r1`he combination with the steps of a railway coach, of a transverse shaft mounted in the lower portion thereof, an auxiliary step fixed to and supported by said shaft, a pinion rigidly secured to one end of said shaft, a plate secured to one side of the usual step, a stud shaft carried thereby and having a pinion mounted thereon and meshing with the iirst mentioned pinion, a bell crank lever pivoted to a portion of the platform, a connecting rod pivotally connected to one arm of the bell crank lever, and eccentrically pivoted to one of the pinions, coil springs surrounding the transverseshaft, and having one of their terminals secured to the shaft and their opposite terminals secured to the usual lower step of a coach, a metallic strip secured to said lower step, a stud carried thereby, a lever pivotally mounted on said stud, U-shaped bolt carrying members arranged at both ends of said strip, spring pressed latch bolts carried by said U-shaped members and having links pivoted to their inner ends, said links also being suitably secured to said lever at points opposite its pivotal connection, and a draw string suitably secured to one end of the lever.

2. rllhe combination with the steps of a railway coach, of a transverse shaft having coil springs surrounding the same, said shaft being journaled near the bottom of the usual coach steps, an auxiliary step fixed to said shaft, a pinion rigidly connected to one end of the shaft, a second pinion carried by one side of the said bottom step, and meshing with the first mentioned pinion, a platform having a movable portion, a bell crank lever including a. handle pivotally secured to the platform, a rod having one end connected to t-he bell crank lever, and its other end connected to an eccentrically arranged stud carried by one of the pinions, connections between the movable portion of the platform and said auxiliary step, whereby upon lowering said platform portion, the step will automatically told.

3. The combination with the steps ot a railway coach, of an auxiliary step pivotally connected thereto, said auxiliary step having bolt receiving openings 't'tn'med in its sides, a metallic strip having an outwardly extending lug formed at its center, said strip being suitably secured to the lower step of the coach, U-shaped bolt carrying members mounted upon each end o said strip, sliding spring pressed bolts carried by said U- shaped members, a lever pivotally connected to said lug, links pivotally connected to the inner ends of said bolts and to the lever, a draw cord or wire provided with a suitable clip, said clip being pivotally connected to one end ol the lever, the draw cord or wire passing through an opening :formed in the side of the usual steps and connected to the inner edge ot a hinged portion ot the platform.

4:. The conibination with the steps of a railway coach, o't a transverse shaft having coil springs surrounding the same, an auxiliary step lixed thereto, a .metallic strip carrying an outstanding lug secured to the under side of a usual coach step, a lever pivotally connected to said lug, sliding bolts arranged at each end of said strip, links connecting the inner ends ot the bolts to said lever, a draw cord connected to one end of said lever and being connected to a certain portion ot' the usual hinged plattorm oit a coach, said draw cord adapted to shiitit the leve' and move the bolts toward `ach other. The combination with the steps ol a railway coach, ot a transverse shaft having fixed thereto an auxiliary step, a bolt actuatingl mechanism carried by the usual lower step ot the coach, a hinged plattform, a cord connected to said bolt operating mechanism and to the hinged platform to operate said bolt mechanism when the hinged platform is opened or closed.

rI he combination with the steps ot a railway coach, ot an auxiliary step, locking means ttor holding said auxiliary step in its operative position, a hinged plat'torm, and.`

means connected therewith to operate the locking means for automatically releasing the step, said step being adapted to return to its inoperative position.

In testimony whereof l allix my signature, in the presence olf two witnesses.

JOHN K1N ZMAN.

lVi tnesses Guas. ll. lVoLFu, Omviin l). M. Soulmcs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.