US930402A - Caster. - Google Patents

Caster. Download PDF

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Publication number
US930402A
US930402A US21532704A US1904215327A US930402A US 930402 A US930402 A US 930402A US 21532704 A US21532704 A US 21532704A US 1904215327 A US1904215327 A US 1904215327A US 930402 A US930402 A US 930402A
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US
United States
Prior art keywords
caster
spindle
bearing
block
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US21532704A
Inventor
James Montgomery
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Individual
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Individual
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Priority to US21532704A priority Critical patent/US930402A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture

Definitions

  • 5 designates the caster-wheel and 6 the usual supporting yoke or carriage in which the wheel 1s mounted,
  • this yoke having an upright cylindrical spindle 7 preferably integral therewith.
  • 8 designates a hollow cylindrical bearingblock in which the spindle 7 is journaled, said bearing-block having an upper trans verse partition 9 and a substantially flat base partition 10, both of which parts are centrally apertured to form bearings for the spindle 7 at or near its upper and lower ends, respectively.
  • the cylindrical bearing lock extends below the base partition 10 in the form of an annular depending flange 11 fitting over the sides of a cup 12 mounted on the frame 6 and surrounding the lower end of the spindle 7. Between the upper concave surface of the cup 12 and the lower flat surface of the base 10 are disposed a series of anti-friction balls 13 around the stem 7.
  • the upper end of said bearing-block is internally threaded, as shown, to engage the threaded lower end of a vertical member 14, such as the leg of a table or chair.
  • the spin- ;dle 7 has two separate and distinct bearings which are located at or closely adjacent to its opposite ends, being thus enabled to most effectively withstand lateral strain and maintain the spindle in a true upright position.
  • the depending flange 11 together with the I base 10 forms in effect an overhanging cup for the ball-bearing protecting the latter to a large extent from the introduction of dust and grit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Description

J. MONTGOMERY.
' GASTER.
APPLICATION FILED JULY 5.1904.
Patented Aug. 10, 1909.
ANUREW. B. muum (20., Pvloiolumomuvnzns. wAsMmomN. \7- 6- UNITED STATES PATENT onnion.
JAMES MONTGOMERY, OF CHICAGO, ILLINOIS.
GASTER.
Specification of Letters Patent.
Patented Aug. 10, 1909.
Application filed July 5, 1904. Serial No. 215,327.
construction substantially as hereinafter de-! scribed and pointed out in the claim.
My invention is illustrated in the accompanying drawing, which shows improved caster in side elevation, with its bearingblock or mounting in central vertical section.
Referring to the drawing, 5 designates the caster-wheel and 6 the usual supporting yoke or carriage in which the wheel 1s mounted,
this yoke having an upright cylindrical spindle 7 preferably integral therewith. 8 designates a hollow cylindrical bearingblock in which the spindle 7 is journaled, said bearing-block having an upper trans verse partition 9 and a substantially flat base partition 10, both of which parts are centrally apertured to form bearings for the spindle 7 at or near its upper and lower ends, respectively. The cylindrical bearing lock extends below the base partition 10 in the form of an annular depending flange 11 fitting over the sides of a cup 12 mounted on the frame 6 and surrounding the lower end of the spindle 7. Between the upper concave surface of the cup 12 and the lower flat surface of the base 10 are disposed a series of anti-friction balls 13 around the stem 7. The upper end of the spindle 7, after having been passed through its bearing in the partition 9, is flattened down to form a head 7 which looks the spindle and caster-wheel in the bearing-block. The upper end of said bearing-block is internally threaded, as shown, to engage the threaded lower end of a vertical member 14, such as the leg of a table or chair.
15 designates a laterally-projecting lug cast integral with the depending annular flange 11 of the bearing-block. The purpose of this lug is to form a catch or hold for the nose of a spanner-wrench.
It will be noticed that the hollow bearing- -block 8 isswelled it its intermediate porition 8 to a considerably increased diameter,
this portion affording a convenient and strong hand-grip in screwing the caster onto and off the article to which it is attached, the spanner-wrench being used in association with the lug 15 in the final turn or turns Ywhen applying the device or in the initial turn or turns when unscrewing it. The spin- ;dle 7 has two separate and distinct bearings which are located at or closely adjacent to its opposite ends, being thus enabled to most effectively withstand lateral strain and maintain the spindle in a true upright position. The depending flange 11 together with the I base 10 forms in effect an overhanging cup for the ball-bearing protecting the latter to a large extent from the introduction of dust and grit.
I claim:
The combination with the caster-wheel and the yoke in which the same is mounted, of a vertical cylindrical spindle rising from the described.
JAMES MONTGOMERY. Witnesses:
SAMUEL N. POND, L. F. MOCREA.
US21532704A 1904-07-05 1904-07-05 Caster. Expired - Lifetime US930402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US21532704A US930402A (en) 1904-07-05 1904-07-05 Caster.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21532704A US930402A (en) 1904-07-05 1904-07-05 Caster.

Publications (1)

Publication Number Publication Date
US930402A true US930402A (en) 1909-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US21532704A Expired - Lifetime US930402A (en) 1904-07-05 1904-07-05 Caster.

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