US818442A - Caster. - Google Patents

Caster. Download PDF

Info

Publication number
US818442A
US818442A US29128705A US1905291287A US818442A US 818442 A US818442 A US 818442A US 29128705 A US29128705 A US 29128705A US 1905291287 A US1905291287 A US 1905291287A US 818442 A US818442 A US 818442A
Authority
US
United States
Prior art keywords
caster
block
barrel
bearing
plate
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
Application number
US29128705A
Inventor
Otto Hoffmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US29128705A priority Critical patent/US818442A/en
Application granted granted Critical
Publication of US818442A publication Critical patent/US818442A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • This invention relates to casters, and comprises particularly a roller-bearing caster having a rotary block in which the casterwheel is journaled, the block being mounted within a barrel depending from a base-plate and having antifriction-rollers between the block and the plate.
  • the caster will, on account of its strength, be found useful for pianos and heavy furniture.
  • Fig. 2 is a central vertical section.
  • Fig. 3 is a horizontal section on the line 3 3, Fig. 2.
  • a base-plate having a depending barrel 7 formed integral therewith.
  • the edges of the base-plate extend beyond the barrel and are provided with holes for screws by which the caster is held in place.
  • a circular bearing-block 8 fits in the barrel and has at the top a spindle 9, which extends through a bearing-hole at the center of the plate.
  • a cotter-pin 10 holds the parts to.- gether.
  • the top of the block has seats 11 for bearing-rollers 12, which lie in said seats and bear against the base -plate 6. There are preferably three of these rollers, although more may be used.
  • the lower end of the block is forked to receive the caster-Wheel 13, which turns on a pin 14, extending across between the forks.
  • Figure 1 is Patented April 24, 1906.
  • the wide fit or bearing of the bearing-block against the sides of the barrel makes the caster of great strength, particularly as the barrel extends below the axis of the wheel, and thus supports any undue strain.
  • the rollers permit the block to swivel freely.
  • the caster-wheel is not offset from the spindle, but is located at the axis thereof. Offset caster-wheels are necessarily weak and liable to break at their pivot-pins because the strain is not direct. In the construction shown the strain or Weight is in a direct line, and the weakness incident to an offset-wheel is avoided.
  • the caster has the advantage of few parts, all of which are relatively stout and easy of manufacture.
  • the parts may be easily and cheaply assembled, and it is impossible for the bearing-rollers to come out or be accidentally lost in transportation or use.
  • a caster comprising a base-plate having a depending barrel and a bearing-hole at the center thereof, a block fitting in the barrel andhaving a spindle on top extending through the hole, rollers between the base-plate and the top of the block, and a caster-Wheel mounted in the bottom of the block in line with the axis of the spindle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Description

No. 818,442. PATENTED APR. 24, 1906 O. HOFFMANN.
CASTBR.
APPLICATION FILED DEC. 11, 1905.
29i mus (3Z2;
r orrioni.
OTTO HOFFMANN, OF CHICAGO, ILLINOIS.
' CASTIER.
Application filed December 1 Tocdl whom it may concern:
Be it known that I, Orro HOFFMANN, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Casters, of which the following is a specification.
This invention relates to casters, and comprises particularly a roller-bearing caster having a rotary block in which the casterwheel is journaled, the block being mounted within a barrel depending from a base-plate and having antifriction-rollers between the block and the plate.
The caster will, on account of its strength, be found useful for pianos and heavy furniture.
In the accompanying a side elevation of the caster. Fig. 2 is a central vertical section. Fig. 3 is a horizontal section on the line 3 3, Fig. 2.
At 6 is indicated a base-plate having a depending barrel 7 formed integral therewith. The edges of the base-plate extend beyond the barrel and are provided with holes for screws by which the caster is held in place. A circular bearing-block 8 fits in the barrel and has at the top a spindle 9, which extends through a bearing-hole at the center of the plate. A cotter-pin 10 holds the parts to.- gether. The top of the block has seats 11 for bearing-rollers 12, which lie in said seats and bear against the base -plate 6. There are preferably three of these rollers, although more may be used. The lower end of the block is forked to receive the caster-Wheel 13, which turns on a pin 14, extending across between the forks.
Specification of Letters Patent.
1,1905- Serial No. 291,287.
drawings, Figure 1 is Patented April 24, 1906.
The wide fit or bearing of the bearing-block against the sides of the barrel makes the caster of great strength, particularly as the barrel extends below the axis of the wheel, and thus supports any undue strain. The rollers permit the block to swivel freely. The caster-wheel is not offset from the spindle, but is located at the axis thereof. Offset caster-wheels are necessarily weak and liable to break at their pivot-pins because the strain is not direct. In the construction shown the strain or Weight is in a direct line, and the weakness incident to an offset-wheel is avoided.
The caster has the advantage of few parts, all of which are relatively stout and easy of manufacture. The parts may be easily and cheaply assembled, and it is impossible for the bearing-rollers to come out or be accidentally lost in transportation or use.
I claim- A caster comprising a base-plate having a depending barrel and a bearing-hole at the center thereof, a block fitting in the barrel andhaving a spindle on top extending through the hole, rollers between the base-plate and the top of the block, and a caster-Wheel mounted in the bottom of the block in line with the axis of the spindle.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
OTTO I-IOFFMANN.
Witnesses:
NELLIE FELTsKoe, II. G. BATOHELOR.
US29128705A 1905-12-11 1905-12-11 Caster. Expired - Lifetime US818442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29128705A US818442A (en) 1905-12-11 1905-12-11 Caster.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29128705A US818442A (en) 1905-12-11 1905-12-11 Caster.

Publications (1)

Publication Number Publication Date
US818442A true US818442A (en) 1906-04-24

Family

ID=2886924

Family Applications (1)

Application Number Title Priority Date Filing Date
US29128705A Expired - Lifetime US818442A (en) 1905-12-11 1905-12-11 Caster.

Country Status (1)

Country Link
US (1) US818442A (en)

Similar Documents

Publication Publication Date Title
US970386A (en) Caster.
US835492A (en) Caster.
US818442A (en) Caster.
US664798A (en) Stove-leg.
US804809A (en) Furniture-caster.
US980817A (en) Caster-wheel for harvesting-machines.
US556978A (en) Caster
US1094782A (en) Ball-caster.
US314958A (en) Caster
US640499A (en) Caster.
US314964A (en) Caster
US440875A (en) Caster
US150132A (en) Improvement in casters
US690153A (en) Furniture-caster.
US1296764A (en) Swivel-caster.
US555175A (en) Ball-caster
US697735A (en) Caster.
US1428899A (en) Caster
USRE20884E (en) Compensating wheeled structure
US265642A (en) Caster
US246520A (en) Caster
US698224A (en) Caster.
US498297A (en) Furniture-caster
US726587A (en) Trolley-wheel.
US196017A (en) Improvement in casters for furniture