USRE11982E - Caster - Google Patents

Description

, the said perferatons.

UNITED STATESPATENT OFFICE.

ALBERT B. DISS, OYF BROOKLYN, NEW YORK;

'CASU-2R.

SPECIICATION forming part of Reissued Letters Patent No. 11,982, dated May 6, 1902. Original No. 654,956, dated July 31,1900. Application for reissue filed Deceniher 13, 1901. Serial No, 85,842.

To all whom it. may concern:

Be it known that I, ALBERT 13. DISS, a cit-izen of the United States, .residing at New York, in the borougn of Brooklyn, in the county of Kings land State of New York, have invented an Improvementin Casters, of which the following is a speeieation.

The object of my present invcntionfis not only to insure the central position of tlie pintle, but to limit the movement that can be given tothe spring-f rame hereto lore ein ployed 4and which spans the pintle` within the tubular leg and to spring-frame l In carrying out my invention I cniploya guide-plate surrounding the pintle and above the disk upon which the tubular'legrests. The tubular leg of the bedstead or other article of furniture surrounds and passes over this guide-plate, andthe same rests upon the aforesaid disk, and beiner rigid it maintains the said pintle in a central position to the tubular leg.' ifhis guide-plate is perforated at opposilersides of the pintle, and the free ends of the spanning spring-frame are provided with small central tangs passing into When the easter is Connected with the tubular leg, the parts of the spring-frame are pressed slightly toward each other and are under tension while in contact with the inner surface of the tubular leg to hold the easter-` frietion'ally in place. in this position the aforesaid tangs are free in the openings of the guide-plate; but when the caster is'removed from the tubular leg the frame spreads and the tangscome in contact prevent undue strain upon said V -with the guide-plate, and it' the parts of the spring-frame are forced toward each other by` a strong hand-pressure the holes in the guideplate act as stops for the tangs to limit `this movement and prevent the frame from being so far bent as to injure its spring qualities.

In theilrawings, Figure 1 is a vertical seetion illustrating luy-invention. Fig. 2 is a similar view showing the easter connected to the tubular leg. Fig. 3 is a cross-section at :u a: of Fig. 2, and Fig. l is a plan view of the spring-frame lai-d out flat.

The caster-wheel rz., the jaws b therefor, and the pintle c, as well` as the disk d, surroundir.r the pintle 'and upon which the tubular leg g rests, are all of usual or woll-known eonstruction and do not require further description. v i

`The spring-frame e c, spanning the pintle.

within the tubular leg and acting' outwardlyagainst the inner surface of the tubular leg to maint-ain the easter frictionally in place, is provided with a narrow central bridge portion c, having an opening to receive the pintlc, andthe vertical edges of said spring-frame are outturned, as wings 2, that are radial to rlimit-ing the movement which can be given to the parts ot' the spring-frame. This guideplate fagrees in diameter with the inner diameter ofthe tubular leg y, so that the said tubular leg passes over the said guide-plate when in place and rests at its lower edge upon the surface of the disk (I,

\Vl1en the caster is not in position in the `tubular leg, the parts c e of the spring-frame are spread at their lower ends by the spring action, so thatthe tangs come against the guide-plate j', which guide-plate limits the outward movement of the parts of the springframe, and when the easter is in position in the tubnlainleg, as shown in Fig. 2, the parts of the spring-frame are'pressed slightly-toward each other under tension to hold the caster frictionally in place in the tubularleg, and in this position the tangs are iree in the 'openings in the guide-plate.

Nhen the caster is not in position in the tubular leg, the guide-platej', with its openings, not only prevents the parts of the springframe spreading too far,r but also limits the l movement of the parts of the spring-frame under pressure toward one another, so as to prevent too great a movement, which would be likely to injure the spring qualities ol.' the frames at the bent union between the parts c and the central part c', so that careless handling and testing of: the springtraine by hand cannot injure or change theposition ot' IOO I jaws and pintle, of adisk surrounding the pin'- jaws and pintle,-of a. disk surrounding the Ileg to hold the caster in place and prevent the for limiting the compressive movementof the the parts of the spring-frame, the tan'gs ing of sufficient strength as cut from the parts of the spring-frame to withstand any ordinary hand-pressure tending to bring theparts of the frame close together.

I find that it is quite necessary'l to prevent the parts of the spring-frame being forced'toward one another, vas in handling samples' of casters carelessly one is liable to test `the spring-frame by hand-pressure to too great an extent, and soinjure the caster.

While the guide-plate f, Fig.V 3, is shown square in outline, with/four points of contact between the same and the inner surface of the tubular leg, the said plate is made of this form for economy of material and convenience rather than circular, which would be more diilicultto pass within the tubnlarleg; but I donot limit myself'in any way to the form of this plate.

I claim as my invention--` 1. The lcombination with the caster-wheel,`

tle'and upon which the tubular leg rests, a

spring-frame spanning the pintle, fitting within the tubular leg and acting frictionally against the inner/surface of the tubular same accidentally dropping out, and means free portion of said frame, substantially as set forth.

2. The combination with the caster-Wheel, jaws and pintle, of a disksu'rrounding the pintle and upon which the-tubular leg rests, a spring-frame spanning the pintle and having a hole atits folded portionto receive the pintle near its free end, said frame fitting within the tubular leg and acting frictionally against the inner surface thereof ,to hold the caster vin placeand prevent the same accidentally dropping out, and means for limiting the compressive movement of the free portion of said frame, substantially as set forth.

`3.. The combination with the"` caster-wheel, jaws and pintle, of a disk surrounding the pintle and upon which the tubular leg'rests, a spring-frame spanning the pintle fitting within the tubularY leg and acting frictionally against the inner surface of the tubular leg to hold the' caster in place 'and prevent the same accidentally dropping out, means for limiting the lcompressive movement of the free portion of said frame, and means for insuring the central position of the pintle,

substantially as set forth. f

4. The combination with thecaster-wheel,

-pintleand upon which the tubular leg rests, a'spring-frame spanning 'the pintle and having a'hole'atits folded portion to receive the pintleilear its free end, said frame fitting with-inthe tubular leg and acting frictionally against the inner surface thereof tohold the caster'in place and prevent the same acciden-tallydropping ont, means ,for insuring the central position of 'the pintle and means for limiting the compressive movement of -the free portion of said frame, substantially as set forth. f

A5. The combination with the caster-wheel, jaws and pintle, adsk surrounding the pintle and upon which the' tubular-leg rests, and a spring-framel spanning .tl/1e.. pintle within the tubular leg and acting outwardly against the inner surface of the tubularleg to 'main-A tain the caster frictionally in position', ofp: means for insuring'the central position of the ,i

pintle and means acting in connection therewith and with the spring-frame for limitingV the movement of the spring-frame, substantially as set forth. p

(i. The combination 'with'the caster-wheel,

jaws and pintle, a disk surrounding the pintle and 'upon which the tubnlarleg'xiests, and

a spring-frame spanning the pintle within the tubular leg and acting outwardlyag'ainst l the inner surface of the tubular leg to 1*.'i'iainij-z. f

tain the caster friction'ally in positiom'o'f a' guide-plate surrounding the pintle aboveQthe said disk and adapted to pass linto thelower end of the tubular leg, said plate having perfortions at opposite Isides of the'pintle and tangsupon the free ends of the spring-'frame passingv into the perforations ,ofl the siiid plate, substantially as set forth.

7." ,The combination with the caster-wheel,

jaws and pintle and a disk surrounding the l pintle and upon which the tubular leg rests, of an inverted-U-shaped spring-frame spanning the pintle within the tnbularleg and having a central portion through whichf'the pintle passes and the vertical edges-of the frame bent outward as wings and I hich frame acts outwardly against the inner surface of the tubular leg to maintain the caster frictionally in position, means for insuring the central position of the pintle .and means acting in connection therewith and with the spring-frame for limiting the movement of the spring-frame, substantially as set forth.` Signed by me this 5th day of December,v

l ALBERT B. D ISS. Witnesses GEO; T. PINCKNEY, S. T.`I'IAVILAND.

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