US167875A - Improvement in slate-polishers - Google Patents

Improvement in slate-polishers Download PDF

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US167875A
US167875A US167875DA US167875A US 167875 A US167875 A US 167875A US 167875D A US167875D A US 167875DA US 167875 A US167875 A US 167875A
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Prior art keywords
slate
rollers
polishers
improvement
polishing
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10Single-purpose machines or devices
    • B24B7/12Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work

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  • Our invention relates to machines for polishing slate; and it consists in the construction and combination of parts, as will be hereinafter more fully set forth.
  • Figure l is a plan view of a-slate-polishing machine embodying our invention.
  • Fig. 2 is a longitudinalvvertical section of the same through the line 00 m, Fig. 1. j
  • A represents the frame-work of our machine, provided on the top with a hinged frame, A, the said frame being provided with feedrollers C, said feed-rollers having adjustable bearings a, so that the said rollers can be adjusted as desired.
  • B represents two rollers provided with a felted or elastic covering, a, coated with flint, emery, or other suitable grinding substance. These rollers are placed in a frame, B, having adjustable bearings b,
  • the said rollers B can be adjusted as desired, regulating the distance between them according to the thickness of the slate to be polished.
  • Beneath the polishing-rollers B are placed receiving-rollers C.
  • the slate, being passed between the feeding-rollers O, is fed to the polishing-rollers B, and after being polished is received by the rollers O.
  • the slate, being passed between the grinding or polishing rollers B B, is ground or polished on both sides at one time, and, said rollers being elastic, any unevenness in the surfaces of the slate will be compensated for, so as to grind or polish the same perfectly smooth and level.
  • This invention may be applied to grinding other material as well as slate.
  • the elastic adjustable polishing-rollers B are The elastic adjustable polishing-rollers B,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Description

1. H. corrm &-P. s. KLOTZ.
Slate-Polisher.
No.167,875, \Patented Sgpt.21-,I875.
nan/[5s m warn/ a "PETERS. PHOTOLLITHOGRAPHER. WASHINGTON D G UNITED STATES PATENT OEEIoE.
JAMEs 11. COFFIN AND rHAons. KLOTZ, O sLATINGTON, AssreNoRs OF ONE-THIRD THEIR RIGHT TO GEORGE s. oorrnv, OF DANIELSVILLE, PA.
IMPROVEMENT IN SLATE-POLISHERS.
Specification forming part of Letters Patent No. "$7,875, dated September 21, 1875 application filed August 9, 1875.
To all whom it may concern:
Be it known that we, JAs. H. GOFFIN and PHAON S. KLOTZ, of Slatington, in the county of Lehigh and State of Pennsylvania, have invented certain new and useful Improvements in Slate-Polishing Machines; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings,'and to the letters of reference marked thereon, which form a part of this specification.
Our invention relates to machines for polishing slate; and it consists in the construction and combination of parts, as will be hereinafter more fully set forth.
In the annexed drawing, Figure l is a plan view of a-slate-polishing machine embodying our invention. Fig. 2 is a longitudinalvvertical section of the same through the line 00 m, Fig. 1. j
A represents the frame-work of our machine, provided on the top with a hinged frame, A, the said frame being provided with feedrollers C, said feed-rollers having adjustable bearings a, so that the said rollers can be adjusted as desired. B represents two rollers provided with a felted or elastic covering, a, coated with flint, emery, or other suitable grinding substance. These rollers are placed in a frame, B, having adjustable bearings b,
so that the said rollers B can be adjusted as desired, regulating the distance between them according to the thickness of the slate to be polished. Beneath the polishing-rollers B are placed receiving-rollers C. The slate, being passed between the feeding-rollers O, is fed to the polishing-rollers B, and after being polished is received by the rollers O. The slate, being passed between the grinding or polishing rollers B B, is ground or polished on both sides at one time, and, said rollers being elastic, any unevenness in the surfaces of the slate will be compensated for, so as to grind or polish the same perfectly smooth and level.
This invention may be applied to grinding other material as well as slate.
Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-
The elastic adjustable polishing-rollers B,
feeding-rollers 0, having adjustable bearingsa, and receiving-rollers G, in combination with the frame B, main frame A, and hinged frame A, all constructed and arranged as and for the purpose specified.
In testimony that we claim the foregoing as our own we affix our signatures in presence of two witnesses.
JAMES H. GOFFIN. PHAON S. KLOTZ. Witnesses:
JAMES SEIBERT, EDw. GoLDING.
US167875D Improvement in slate-polishers Expired - Lifetime US167875A (en)

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