US187870A - Improvement in methods of operating saw-mill carriages - Google Patents

Improvement in methods of operating saw-mill carriages Download PDF

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US187870A
US187870A US187870DA US187870A US 187870 A US187870 A US 187870A US 187870D A US187870D A US 187870DA US 187870 A US187870 A US 187870A
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improvement
methods
mill
saw
chain
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B29/00—Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages
    • B27B29/08—Trunk or log carriages with gripping means designed to pass the saw blade(s), especially for band saws; Arrangement of gripping accessories thereon; Turning devices thereon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0889—Path of movement of the finally actuated member
    • F16H2007/0893—Circular path
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6492—Plural passes of diminishing work piece through tool station
    • Y10T83/6499—Work rectilinearly reciprocated through tool station
    • Y10T83/6537—By cable or belt drive

Definitions

  • NHEIERS FHOTO-LITIIUGRAPHER. WASHINGTON. D C- UNITE STATES PATENT OFFICE,
  • Figure 1 is a central longitudinal section.
  • Fig. 2 is a bottom view.
  • My invention consistsin the arrangement of a chain and chain-wheels, and weighted tightening-pulleys, for moving the log-carriage of a saw-mill.
  • the object of my invention is to provide a practical and inexpensive device for moving the log-carriage of a saw-mill, and to obviate the objectionable features of racks and pinions or wire ropes.
  • A is the ordinary log-carriage, running on the track B.
  • O is a shaft, driven by the power that runs the mill, and supporting the toothed chain-wheela.
  • a square linked chain, D is attached to each end of the log-carriage, running over wheels I) and under' the Wheel at, whose teeth mesh into the links of the chain.
  • E E are tightening-pulleys, journaled in the and provided with weights d.
  • the operation is obvious.
  • the wheel a being rotated, causes the chain D to draw the carriage A in one direction or the other with a positive motion.
  • the tightening-pulleys E take up the slack in the chain, so that the carriage answers to every motion of the drivingwheel.
  • This invention has an advantage over racks and pinions, as it cannot become clogged with sawdust or chips. It also has an advantage over wire ropes and drums, as it cannot slip, and may be readily repaired, if broken, by replacing the broken link.

Description

M. LALLY. METHOD OF OPERATING SAW-MILL CARRIAGES. .No.187,870.
Patented Feb. 27, 1877.
. ATTORNEYS.
NHEIERS. FHOTO-LITIIUGRAPHER. WASHINGTON. D C- UNITE STATES PATENT OFFICE,
MARTIN LALLY, OF EAU CLAIRE, WISCONSIN.
IMPROVEMENT IN METHODS OF OPERATING SAW-MILL CARRIAGES.
Specification forming part of Letters Patent No. 187,870, dated February 27, 1877; application filed September 9, 1876.
To all whom at may concern:
Be it known that I, MARTIN LALLY, of
the city and county of Eau Claire, and State of Wisconsin, have invented an Improvement in the Method of Operating Saw-Mill Garriages, of which the following is a specification:
Figure 1 is a central longitudinal section. Fig. 2 is a bottom view.
Similar letters of reference indicate corresponding parts.
My invention consistsin the arrangement of a chain and chain-wheels, and weighted tightening-pulleys, for moving the log-carriage of a saw-mill.
The object of my invention is to provide a practical and inexpensive device for moving the log-carriage of a saw-mill, and to obviate the objectionable features of racks and pinions or wire ropes.
A is the ordinary log-carriage, running on the track B. O is a shaft, driven by the power that runs the mill, and supporting the toothed chain-wheela. A square linked chain, D, is attached to each end of the log-carriage, running over wheels I) and under' the Wheel at, whose teeth mesh into the links of the chain. E E are tightening-pulleys, journaled in the and provided with weights d.
The operation is obvious. The wheel a, being rotated, causes the chain D to draw the carriage A in one direction or the other with a positive motion. The tightening-pulleys E take up the slack in the chain, so that the carriage answers to every motion of the drivingwheel.
This invention has an advantage over racks and pinions, as it cannot become clogged with sawdust or chips. It also has an advantage over wire ropes and drums, as it cannot slip, and may be readily repaired, if broken, by replacing the broken link.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, with sprocket-wheel a and link-chain D, the latter extended over stationary pulleys to the ends of carriage, of a guide-pulley, E, on each side of but above the sprocket-wheel, said guide-pulley being journaled at one end of levers whose other end is weighted, as set forth.
Witnesses: MARTIN LALLY.
DANIEL BUCHANAN, HENRY H. HAYDEN.
ends of the levers F, which are pivoted at c,
US187870D Improvement in methods of operating saw-mill carriages Expired - Lifetime US187870A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045338A (en) * 1960-08-15 1962-07-24 G C Price Co Apparatus for advancing internal lineup clamps through end-to-end pipe sections

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045338A (en) * 1960-08-15 1962-07-24 G C Price Co Apparatus for advancing internal lineup clamps through end-to-end pipe sections

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