US1819309A - Ball supporting and lifting arrangement - Google Patents

Description

Aug. 18, 1931. A. wAsBERG E1' AL 1,819,309

v BALL SUPPORTING AND LIFTING ARRANGEMENT Filed sept. 24. 192e 2 sheets-sheet 1 Aug. 18, 1931.

A. wAsBERG ETAL BALL SUPPORTINGAND LIFTING ARRANGEMENT Filed Sept. 24, 1928 2 Sheets-Sheet 2 rlliill lill :Illa lili. ,IIIIIIIIIO llllltlll llllill! THJ 705m/ Patented Aug. 18, 1931 UNITED Y STATES PATENT OFFICE AXEL WASBERG AND KENNETH J. TOBIN, F CHICAGO, ILLINOIS, ASSIGNORS T0 CAMEL COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION 0F ILLINOIS BALL SUPPORTING AND LIFTING ARRANGEMENT Application led September 24, 1928. Serial No. 308,119.

This invention relates to lifting means for a ball supported door, and concerns itself, primarily with a structure in which a ball retainer is eccentrically pivoted to the door for oscillating movements in combination with means for causing relative movement of the door and retainer for elevating and lowering the door.

The invention comprises a novel structure and combination of partshereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings which il lustrate a preferred embodiment of thls 1nvention, and in which similar reference numerals refer to similar features in thed1fferent views:

On the drawings:

Figure 1 is a fragmentary side elevational view of a house car having a d oor that is supported and controlled accordmg to t h1s invent-ionand showing the door as restmg upon its track against sliding movement.

Figure 2 is a view similar to F1gure 1,

illustrating the door resting upon 1ts rollers for sliding movement.

Figure 3 is an enlarged det-ail sectional View taken upon the line III-III of Flgure 1, with parts omitted. t

Figure 4 is an enlarged deta1l sectional view taken upon the line IV-IV of Figure 1. Figure 5 is an enlarged detail sectional view taken upon the line V-V of F1gure 2. Figure 6 is an enlarged detail sectional 85 view taken upon the line VIL-VI of Figure 1.

Figure 7 is an enlarged fragmentary sectional view taken upon the line VII--VII of Figure 1.--

As shown on the drawings:

o Referring to the drawings, there is shown a portion of the side of a house car which is closed by a-sliding door 1 adjacent the lower end of which there is secured an angle bar 2, which normally rests upon -a track 3 secured to the lower parts of the car. A ball retainer 4 provided with eccentrically positioned bearing lugs 5 journalled in suitable bearings 6 secured to the ends of the door,

constitutes one of the elements for elevating the door to bring the angle bar above the track as shown in Figure 5.

The ball retainer consists of a single elongated member constructed from an angle bar 7 and a deformed metal member 8. This deformed metal member 8 has a flange 8a that is attached to a flange on the angle member-7. The flange 8a merges into a sharp bend 8b and this sharp bend 8b merges into a flange 8c substantially at right angles to the bend. It will be noted that the depending flange of the angle bar 7 and the flange 80 form a diverging race-way for receiving the bearing balls 9. This diverging raceway is preferably braced by a spacing member 7 a. In the present instance, the retainer is shown as carrying two pairs of bearing balls 9 which are suitably spaced to balance the door. Each pair of bearing balls 9 is confined in an auxiliary retainer 10. With reference to Figures l, 4 and 5, it will be noted that each auxiliary retainer has lower claw-like members for retaining the individual balls, and each auxiliary retainer is also provided with a neck that extends through the restricted throat of the main retainer 8, and this neck terminates in a. laterally extending lug 11 for retaining the auxiliary retainers in the main retamer, how-` I ever, with freedom for limited movement.

Upon the side of the door, there is pivoted an operating lever 12. The lower end of" this lever is provided with lateral lobes 13,1

and the pivot 14 of the lever is located centrally between the lobes. These lobes 13 act as cams in conjunction with the main re,- v

tainer forelevating the door, as will presently be pointed out. The lever 12 is preferably confined beneath a .keeper l15 secured to the door.

In Figure 1 the door is shown with its angle bar 2 resting upon the track 3. Inthis posiof the. main retainer R and cause the door to be elevated as .shown in Figure 5, so that it will be supported upon its rollers. It will be noted that the pressure exerted by the lever l2 upon the retainer 8, is eccentric with respect to the journals 5 of the retainer with the result that there will be relative swinging movements between the door and the main retainer 8. As soon as the door has been elevated upon its rollers, the pull upon the handle l2 will, of course. slide the door upon its rollers to the desired position. As soon as the handle is released the door will Nautomatically drop by gravity until the angle bar 2 engages the track 3.

It is characteristic of this invention that very little effort is required to elevate the door for rolling movements. Furthermore, this operation can be very quickly performed. It will further be appreciated that the heretofore described structure is self-contained and exceedingly simple to manufacture and install. y

lVe are aware that many changes may be made and numerous details of construction may be varied through a wide range without departing fromv the principles of this invention, and we, therefore, do not purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

7e claim as our invention:

l. The combination with a track, of a door having frictional supporting means normally engaging said track, end castings upon said door, a longitudinally extending ball retainer eccentrically pivoted at its opposite ends to said castings, and a lever for rocking said retainer in a transverse direction.

Q. The combination with a track, of a door having means for frictionally engaging said track, said door having end bearings, a roller retainer extending between said castings and eccentrically pivoted thereto, rollers, carried by said retainer, and means for tilting said retainer for elevating the door.

3. A car door having end bearings, a ball retainer having end portions eccentrically pivoted to said bearings, balls carried by said retainer and a cam lever pivoted to said door and eccentrically engaging said retainer for rotating said retainer relative to said door.

4. A car door having bearings, a longitudinally extending roller retainer extending between said bearings and pivoted thereto for oscillating movements in a plane transverse to said door and a lever for engaging said retainer and rocking the same on its end pivots.

5. A car door having end bearings, a roller retainer having eccentric pivotal rotation at its ends with said end bearings, rollers mounted in said retainer and a lever pivoted to said door and swingable in a longitudinal direction for rocking said retainer transversely with respect to the door.

C. The combination with a track, of a door having means for frictional engagement with said track, roller` means for supporting the door upon said track when it is. desired to slide the same, a longitudinally extending member pivoted to said door for supporting said roller-means, and a lever pivoted to said door and swingable in a plane parallel to the door for tilting said member and elevating the door, for supporting the same upon said roller means.

T. In a house car having a door opening and a track adjacent one margin of said opening. means for frictionally supporting said door upon said track against sliding movement. a ball retainer having end journals pivoted in said door, balls carried by said retainer and means for causing relative movement of said dooi` and retainer for elevating said door and supporting the same upon said balls.

8. In a house car having a doorwayand a track adjacent one margin of said doorway, a sliding door closing said doorway, means for trictionally:supporting said door upon said track. a longitudinal member having end journals pivoted to said door, rolling means` carried by said member, and means for exerting pressure between said door and member and causing relative movement thereof for elevating the door for supporting engagement upon said rolling means. 9. The combination with a track, of a door having frictional supporting means normally engageable with said track, a member having bearing journals pivoted to the door in a plane parallel to the door and rotatable in a plane trans-verse to the door, and means exerting pressure between said door and member' in a. plane eccentric to the 105 pivots of said member for elevating said door for the purpose set forth.

l0. The combination with a track, of a door having supporting means in frictional engagement with said track, said door having end castings, a member having end journals pivoted in said castings,` rolling means carried by said member, and a cam lever pivoted to said door for engaging said member in a plane eccentric to said journals for elevating said door for supporting the same upon said rollers.

11. The combination with a track, of a Q- door, a member for said door, means connecting said member to said door for relative movement therebetween, said member being provided with -a raceway, rolling means for said door positioned between and contacting with said track and raceway, and an operating device engaging said member and operable to elevate said door.

12. The combination with" a track, of a door, a member for said door, means connecting said member to said door for rela tive movement therebetween, said member being provided with a raceway, rolling means for said door positioned between and contacting with said track and raceway, and an operating device engaging said member and operable to elevate said door, said means connecting said member eccentrically to said door.

13. The combination with -a track, of a door. a member for said door. means connecting said member to said door forrelative movement therebetween, said member being provided with a raceway. rolling means for said door positioned between and contacting with said track and raceway, a-n Operating device engaging said member and operable to elevate said door, and means pivotally connecting said member to said door whereby when said door is elevated by said operating device tilting of the door is obviated.

14. ln combination. a door, a ball retainer, means pivotally connecting said retainer eccentrically to said door, and means for elevating said door relative to said retainer. 15.111 combination. a door, a ball retainer, means pivotally connectingr said retainer eccentrieally to said door, and means for elevating said door relative to said retainev'. said last mentioned means being swingable in a longitudinal direction whereby engagement between the retainer and means is effected for elevating the door.

In testimony whereof, We have hereunto subscribed our names at Chicago, Cook County. Illinois.

AXEL VASBERG. KENNETH J. TOBIN.

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