US336631A - Nose-guard for saw-mill head-blocks - Google Patents

Nose-guard for saw-mill head-blocks Download PDF

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US336631A
US336631A US336631DA US336631A US 336631 A US336631 A US 336631A US 336631D A US336631D A US 336631DA US 336631 A US336631 A US 336631A
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nose
saw
guard
blocks
head
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • 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
    • Y10T83/6508—With means to cause movement of work transversely toward plane of cut
    • Y10T83/6515—By means to define increment of movement toward plane of cut
    • Y10T83/6518—By pusher mechanism

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Golf Clubs (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Percussive Tools And Related Accessories (AREA)

Description

(No Model.)
0. ESPLIN.
NOSE GUARD FOR SAW MILL HEAD BLOGKS.
No. 336,631. Patented Feb. 23, 1886.
UNITED STATES PATENT OFFICE.
CHARLES ESPLIN, OF MINNEAPOLIS, MINNESOTA.
NOSE-GUARD FOR SAW-MILL HEAD-BLOCKS.
SPECIFICATION forming part of Letters Patent No, 336,631, dated February 23, 1886.
Application filed April 13, 1885. Serial No. 162,058. (No model.)
To aZZ whom it may concern.-
Be it known that I, CHARLES ESPLIN, a subject of the Queen of Great Britain and Ireland, (who have declared my intention of becoming a citizen of the United States,) residing at Mi n neapolis, in the county of Hennepin, in the State of Minnesota, have invented certain new and useful Improvements in Nose-Guards for Saw-Mill Head-Blocks, of which the following specification is a full, clear, and exact description, reference being also had to the accompanying drawings.
In the drawings, Figure l is a side view, Fig. 2 is a plan view, and Fig. 3 is a front view, of a head-block base and headblock and a portion of the carriage, showing my improved guards arranged thereon. Fig. 4 isa cross-section of one of the guards on the line :0 :c of Fig. 3.
A A. represent sections of the two main side timbers of the carriage, and B one of the head-block bases secured across them, as shown.
B is the adjustable headblock, which is mounted upon and adapted to slide along the base B.
The head-block and its base, as shown in the drawings, represent one of the many forms in which they are made; but as my invention is applicable to any form of headblock I merely use the form shown toillustrate the invention, and do not wish to be confined to any particular form. In the form shown thefnose or end a of the base B toward the saw projects over the side ti mber, a, while in other forms the nose may projectto a greater or less distance than is here shown. The carriage, in running back and forth in feeding and receding, travels parallel with the log-platform of the mill, and in rolling the logs upon the carriage or in moving them upon the platform one end of a log is sometimes allowed to project over the carriage so that the noses of the head-blocks strike them with great vio' lence, which frequently breaks them or tears them loose from the carriages; and to render such collisions harmless is the object of my invention, which consists in inclined metal guards or shields O G, secured to the carriage on each side of the nose a of the base B, which receive the blow from the log when the latter is in motion, or strike the log when the carriage is in motion, and cause the log to run up their inclined sides and passharmless- 1y over the top of the head-block base B. It will be observed that the guards C do not touch the base B, but narrow intervals are left between them, as shown at d in Figs. 2 and 3, so that the concussion of the log upon the guards is not imparted to the headblock base; hence no damage can possibly occur thereto so long as the guards are intact.
The guards being formed separately from the head-block bases, if one of them becomes broken, it can be replaced at asmall expense, and will not necessitate the replacement of the whole head-block base, as it would if the guards and base were in one piece. By forming the outer sides, 6, of the guards inclined the logs will run up over them and the head-block bases without affecting the guards or headblock bases, or straining the bolts which hold them to the carriages. The face of each guard 0 next to the saw will conform to the general shape of the nose, so as to fully protect it; but at the same time it must not project far enough beyond the nose to interfere with the saw or other parts.
When used in connection with head-blocks in which the noses project to a greater or less distance than shown, the projecting part of the nose guard will be made to conform to such projection.
The noseguards may be formed as a permanent part of the carriage; but I prefer them in the general form shown, as being the most convenient to attach to the carriage, either when first built or as an attachment to cari riages already in use.
Having described my invention and set forth its merits, what I claim is- The guards C O, secured to a sawmill carriage, and located at the sides of the nose of the head-block, substantially as and for the purpose herein specified.
In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.
CHARLES ESPLII Vitnessesi LOUIS FEEsER, Jr., M. ROBERTSON.
US336631D Nose-guard for saw-mill head-blocks Expired - Lifetime US336631A (en)

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