US125750A - Improvement in head-blocks for saw-mills - Google Patents

Improvement in head-blocks for saw-mills Download PDF

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Publication number
US125750A
US125750A US125750DA US125750A US 125750 A US125750 A US 125750A US 125750D A US125750D A US 125750DA US 125750 A US125750 A US 125750A
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United States
Prior art keywords
head
saw
mills
blocks
improvement
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Expired - Lifetime
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Classifications

    • 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
    • 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
    • Y10T83/6523—Including plural, simultaneously acting pusher elements
    • Y10T83/6531—Movement by screw means

Definitions

  • the object of this inventionV is to facilitate the operation of setting logs to the saw in the process of sawing lumber, so that the thickness of the lumber sawed' may be determined With greater accuracy than it is by the usual method. 4
  • the invention consists in a new mode of arranging the parts which operate vthe knee' on a head-block, whereby the sawyer can reach the setting apparatus from the side of the log.
  • Figure l is a side elevation, partly in section, as through the line w w of Fig. 2.
  • Fig. 2 isan end elevation, partly in section, as 0n the line y y of Fig. l. e
  • A represents one of the head-blocks of the carriage upon which the log rests in being sawed.
  • B is the knee, against which the log rests, and by ineans of which the log is moved up to the saw for each piece of lumber sawed.
  • C is a horizontal screw, confined in the headblock as seen at D, so that it is allowed to revolve, but to have no longitudinal motion. It is connected with the knee by the stirrup E in a groove of the sleeve-nut F, as seen in the drawing.
  • G is a bevel or ruiter wheel on the end of the sleeve-nut F.
  • H is a bevel or miter wheel, which engages with G on the lower end of the vertical rod I. This rod passes through the horizontal portion of the knee, by which its lower end is supported.
  • the sawyer can set the log with the greatest precision while standing erect.
  • This invention is more especially designed for the circular-saw mill, but may be applied to other kinds of saw-mills.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Description

IEIENRY C. MC-EWEN, OF OAKDALE STATION, PENNSYLVANIA.
IMPROVEMENT IN HEAD-BLOCKS FOR SAW-MILLS.
Specification forming part of Letters Patent No. 125,750, datedApril 16, 1872.
Specification describing a new and useful Improvement in Log-Setting Apparatus, invented by HENRY (l. McEwEN, of Oakdale Station, in the county of Allegheny and State of Pennsylvania.
The object of this inventionV is to facilitate the operation of setting logs to the saw in the process of sawing lumber, so that the thickness of the lumber sawed' may be determined With greater accuracy than it is by the usual method. 4
The invention consists in a new mode of arranging the parts which operate vthe knee' on a head-block, whereby the sawyer can reach the setting apparatus from the side of the log.
In the accompanying drawing, Figure lis a side elevation, partly in section, as through the line w w of Fig. 2. Fig. 2 isan end elevation, partly in section, as 0n the line y y of Fig. l. e
Similar letters of reference indicate corresponding parts.
A represents one of the head-blocks of the carriage upon which the log rests in being sawed. B is the knee, against which the log rests, and by ineans of which the log is moved up to the saw for each piece of lumber sawed. C is a horizontal screw, confined in the headblock as seen at D, so that it is allowed to revolve, but to have no longitudinal motion. It is connected with the knee by the stirrup E in a groove of the sleeve-nut F, as seen in the drawing. G is a bevel or ruiter wheel on the end of the sleeve-nut F. H is a bevel or miter wheel, which engages with G on the lower end of the vertical rod I. This rod passes through the horizontal portion of the knee, by which its lower end is supported. Its
upper end is supported by a back projection at the top of the knee, where it is held in proper position, as to height, by the collar J. FK is hand-wheel on the top of the rod I.
It will be seen that by turning this rod I the nut F will be revolved, and the knee will be moved on the head-block in either direction, according as the rod is turned. The connection of the knee with the head-block is seen in the crosssection, Fig. 2. The head-block is slotted, and the edges of the horizontal portion of the knee are grooved to it the top of the head-block and to slide thereon, as represented in that figure.
I do not limit or coniine myself to the precise form or arrangement of any of the parts described, as variations may be made without departing from my invention.
By this invention the sawyer can set the log with the greatest precision while standing erect.
This invention is more especially designed for the circular-saw mill, but may be applied to other kinds of saw-mills.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The arrangement of knee B, provided with Witnesses:
GEO. DIcKsoN, JOHN TURNER.
ATENT GFFICE
US125750D Improvement in head-blocks for saw-mills Expired - Lifetime US125750A (en)

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US125750A true US125750A (en) 1872-04-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719552A (en) * 1954-04-14 1955-10-04 Adelard J Parent Sawmill dogs operated by a track above the log carriage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2719552A (en) * 1954-04-14 1955-10-04 Adelard J Parent Sawmill dogs operated by a track above the log carriage

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