US382555A - Saw-mill dog - Google Patents

Saw-mill dog Download PDF

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Publication number
US382555A
US382555A US382555DA US382555A US 382555 A US382555 A US 382555A US 382555D A US382555D A US 382555DA US 382555 A US382555 A US 382555A
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Prior art keywords
saw
lever
dog
slide
bar
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Expired - Lifetime
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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
    • 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
    • Y10T83/652—With additional work holding or positioning means
    • Y10T83/6521—Work holding means includes actuator

Definitions

  • Figure l is a perspective view of 'a saw-mill dog embodying our improvements.
  • Fig. 2 is a vertical sectional1 view of the same.
  • Fig. 3 is a horizontal sectional view taken on the line w :v of Fig. 2.
  • Fig. 4 represents a vertical section of a part of the machine showing the relation of the pivotal points of the lever and rod and the stop-bracket to which the lever is pivoted.
  • A represents a vertical standard, to-,the upper and-lower ends ot' which are bolted horizontal brackets or guides B, which project In the outer ends of the said brackets are vertical aligned openings O.
  • I) represents a vertically-movable slide-bar, which is somewhat longer than the standard, and is similar thereto in size and shape.
  • the said slidebar is guided in the openings C.
  • E represents a lever, which has its inner vend pivoted between the arms of the bifurcated bracket E', secured to the side of the standards, as shown in Fig. 2, and F represents a spring-keeper,which projects beyond the front edge of the standard near the upper end thereof,
  • G represents a connecting-rod, which has its upper endr pivoted to the lug of the lever E, as shown in Fig. 1, the lug resting between the ears e, and its lower end pivoted to the slide-bar D.
  • I represents a vertically movable block, which is arranged on the slide-bar and is adapted to workindependently thereon, the said block being provided with avertical central opening, through which the slide-bar extends.
  • This block is provided with alongitudi- ⁇ nal opening, K, which is 'arranged atright anver' were lifted.
  • N represents a dog, which has the depending wedge-shapedpoint O and the horizontal arm P, which extends through the opening K and bears against the outer side of the slidebar.
  • the opening'K is somewhat larger than the arm P, so that the latter is free to turn laterally a slight distance in the said opening.
  • R represents ⁇ a lever, which is pivoted between the ears L,.and has an eccentric cam, S, formed at its inner end,which cam extendsl through' the opening M.
  • S eccentric cam
  • the outer end of both the levers R4 and E are weighted, as shown.
  • the operation of our invention is as follows:
  • the leverR has its outer end normally lowered, so asto cause the cam at its 'inner end to bear against the 'outer side of the dog-arml P and force the latter so firmly against the opposing side of the slide-bar as to clamp the said dog and the block I rigidly thereto, and thus secure thedog at any desired vertical adjustmenton the slide-bar and at any desired longitudinal adjustment with relation Yto the block I.
  • the slide-,bar may be raised or lowered to cause the dog to either engage or disengage the saw-log, as will be readily understood.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

UNlrF-D STATES PATENT ogs-ICE.,
REUBIN FpREDICKV AND JOSEPH H. REDICK, OF SPENCERVILLE, OHIO.
SAW-MILL DOG.
SPECIFICATION forming pari: of Lettrsfatent No. 382,555, dated May 8, 188`8. Application tiled June 10, 1887. Serial No. 240,921. (No modelj I To -@ZZ whom it may concern):
Be it known thatA we, REUBIN F. REDICK and JosErHH, Rumori, citizens ofthe United States, residing at Spencerville, in the county of Allen andState of Ohio, have invented a new and useful `Improvement in Saw-Mill Dogs, of which thefollowing is a specification. Our invention relates to an improvement in saw-mill dogs; and it consists in the peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointedout in the claim.
In the drawings, Figure l is a perspective view of 'a saw-mill dog embodying our improvements. Fig. 2 is a vertical sectional1 view of the same. Fig. 3 is a horizontal sectional view taken on the line w :v of Fig. 2.
u from one side thereof.
Fig. 4 represents a vertical section of a part of the machine showing the relation of the pivotal points of the lever and rod and the stop-bracket to which the lever is pivoted.
A represents a vertical standard, to-,the upper and-lower ends ot' which are bolted horizontal brackets or guides B, which project In the outer ends of the said brackets are vertical aligned openings O.
I) represents a vertically-movable slide-bar, which is somewhat longer than the standard, and is similar thereto in size and shape. The said slidebar is guided in the openings C.
E represents a lever, which has its inner vend pivoted between the arms of the bifurcated bracket E', secured to the side of the standards, as shown in Fig. 2, and F represents a spring-keeper,which projects beyond the front edge of the standard near the upper end thereof,
' and is adapted to engage the lever and retain the same when raised nearly to a vertical position. l f
G represents a connecting-rod, which has its upper endr pivoted to the lug of the lever E, as shown in Fig. 1, the lug resting between the ears e, and its lower end pivoted to the slide-bar D. t
I represents a vertically movable block, which is arranged on the slide-bar and is adapted to workindependently thereon, the said block being provided with avertical central opening, through which the slide-bar extends. This block is provided with alongitudi-` nal opening, K, which is 'arranged atright anver' were lifted.
gles to the slide-bar. kOn theouterside of the, block are projecting ears L, and between the said ears is an opening, M, which communicates with the opening K.
N represents a dog, which has the depending wedge-shapedpoint O and the horizontal arm P, which extends through the opening K and bears against the outer side of the slidebar. The opening'K is somewhat larger than the arm P, so that the latter is free to turn laterally a slight distance in the said opening.
R represents `a lever, which is pivoted between the ears L,.and has an eccentric cam, S, formed at its inner end,which cam extendsl through' the opening M. The outer end of both the levers R4 and E are weighted, as shown.
The relation'between the pivotal point of the lever E to the bracket E and the pivotal point ofthe ears c ofthe rod G is such that when the lever falls the latter pivotal point is brought just slightly to thel opposite or inner side of the former point; or, in other words, the pivotal point of the rod just slightly passes its dead-point. The rod then brings up against the edge of the bracket E', so that the lever can fall no farther, the bracket serving thus as a stop. Itis evident from this that no upwardpressure can lift the lever, but will hold 8o it down tighter. ,This action insures that the planks will be cut of equal thickness from end to end, as would not be the case if the le- The operation of our invention is as follows: The leverRhas its outer end normally lowered, so asto cause the cam at its 'inner end to bear against the 'outer side of the dog-arml P and force the latter so firmly against the opposing side of the slide-bar as to clamp the said dog and the block I rigidly thereto, and thus secure thedog at any desired vertical adjustmenton the slide-bar and at any desired longitudinal adjustment with relation Yto the block I. By means of the lever E the slide-,bar may be raised or lowered to cause the dog to either engage or disengage the saw-log, as will be readily understood. ,y f v Having thus described our invention, wev claiml' roo The combination, with the standard, the brackets secured to the upper and lower ends thereof, and the slide passing througgghk openings in said brackets, of thebifurcatedbracket our own we have hereto affixed our signatures in presence of two witnesses.
REUBIN F. REDICK. JOSEPH H. REDICK.
Witnesses:
T. J. REMINGTON, A. D. MILLER.
In testimony that we claim the foregoing as
US382555D Saw-mill dog Expired - Lifetime US382555A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592205A (en) * 1949-02-07 1952-04-08 Dorothy Mae South Lever and toggle actuated log gripping device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592205A (en) * 1949-02-07 1952-04-08 Dorothy Mae South Lever and toggle actuated log gripping device

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