US107966A - Improvement in head-blocks for saw-mills - Google Patents

Improvement in head-blocks for saw-mills Download PDF

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Publication number
US107966A
US107966A US107966DA US107966A US 107966 A US107966 A US 107966A US 107966D A US107966D A US 107966DA US 107966 A US107966 A US 107966A
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Prior art keywords
head
mills
saw
block
blocks
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting 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
    • B26D1/01Cutting 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
    • B26D1/12Cutting 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
    • B26D1/14Cutting 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
    • B26D1/143Cutting 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6492Plural passes of diminishing work piece through tool station
    • Y10T83/6499Work rectilinearly reciprocated through tool station
    • Y10T83/6508With means to cause movement of work transversely toward plane of cut
    • Y10T83/6515By means to define increment of movement toward plane of cut
    • Y10T83/6518By pusher mechanism

Definitions

  • a in the drawings represents ⁇ theheadblock.
  • B is the frame on which the same-- slides.
  • ⁇ G C are twoparallel horizontal bars, pivoted at ⁇ their rear ends to bellcranks a a., which are connectedwith each other and with a lever, D,'by means of a jointed rod, b.
  • the bars() C will be moved longitudinally backward and forward in opposite directions.
  • the bars C C rest in the front and back ends of the frame B, and are in the same always guided parallel.
  • lever F is a sliding wedge suspended from a lever, G, which is pivoted to the head-block.
  • the lever G When the lever G is swung down, the wedge will force the outer members of the levers E back, to cause them to release the bars C.
  • the head-block can then be moved backward.
  • the joint in each lever E allows the same to adjust themselves to inequalities of the bars C.

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

Description

. .UNITED STATES PATENT OFFICE.
VFRANKLIN vSHEL'LEY, OF MUNCIE, INDIANA.
IMPRovEM ENT `IN HEAD- BLOCKS Fo'R SAW-MILLS.
Specificationforming part of Letters Patent No. 107,966, dated October 4, 1870.
To all whom t may concern.- i
y `Be it known that l, FRANKLIN W. SHELLEY,
of Muncie, in the county of Delaware and State of Indiana, have invented a new and Improved Head-Block for Saw-Mills; and Ido hereby i declare that thefollowing is a full, clear, and
are operated by a pair of sliding bars, so as to. impart the necessary intermittent forwardmotion to the block. ,1
A in the drawings represents `theheadblock. B is the frame on which the same-- slides. i y
` G C are twoparallel horizontal bars, pivoted at` their rear ends to bellcranks a a., which are connectedwith each other and with a lever, D,'by means of a jointed rod, b. By oscillating the lever `D the bars() C will be moved longitudinally backward and forward in opposite directions. The bars C C rest in the front and back ends of the frame B, and are in the same always guided parallel. y
To an ear, d, which projects from the under side of the head-block,iare`pivoted two jointed levers, E E,y whose lower members are perforated to embrace the bars G C, respectively.
Some springs, e, Iwhich proj ectdownward from [the head-block, hold the lower membersof the levers E forward in an, inclined position,
so that the upper back edges of their aper/ tures bite against the rods C. Whenever a rod, G', is moved forward it will be locked, together'withts levers E, to carry the headblock forward with it, while during the backward motion of each'bar C the same slides loose through the apertures of E without afi fecting the position of the head-block. Thus,
during every motion of the lever D the forward-moving bar C will feed the head-block forward.`
F is a sliding wedge suspended from a lever, G, which is pivoted to the head-block. When the lever G is swung down, the wedge will force the outer members of the levers E back, to cause them to release the bars C. The head-block can then be moved backward. The joint in each lever E allows the same to adjust themselves to inequalities of the bars C.
Having thus described my invention, I claim as new and desire to secure by Letters Patenty v 1. The reciprocating bars C C, operated by I the lever D, and combined with the perforated levers E E and head-block A, for feeding the latter, as set forth.
2. The levers E, combined with the springs e, and jointed, as described, for the purpose of communicating forward motion to the headblock from the reciprocating bars C, as set forth. i
3. The wedge .F and lever G, arranged on the head-block for the purpose of throwing the levers Eout of gear, as set forth.
FRANKLIN w. sHELLEY.
Witnesses:
H. O. DoEsEY,
SAM W. HABLAN.
US107966D Improvement in head-blocks for saw-mills Expired - Lifetime US107966A (en)

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US107966A true US107966A (en) 1870-10-04

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