US2228485A - Machine for reciprocating a tool - Google Patents

Machine for reciprocating a tool Download PDF

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Publication number
US2228485A
US2228485A US33188240A US2228485A US 2228485 A US2228485 A US 2228485A US 33188240 A US33188240 A US 33188240A US 2228485 A US2228485 A US 2228485A
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United States
Prior art keywords
tool
tool carrier
guide
machine
carrier
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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John W Reed
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Individual
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Individual
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Priority to US33188240 priority Critical patent/US2228485A/en
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Publication of US2228485A publication Critical patent/US2228485A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18152—Belt or chain carried member
    • 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
    • Y10T83/687—By tool reciprocable along elongated edge
    • Y10T83/705—With means to support tool at opposite ends

Definitions

  • This invention aims to provide a simple but effective power-driven means for imparting reciprocation to a hack saw, file, sand block, or the like.
  • Fig. 1 shows, in side elevation, a device constructed in accordance with the invention
  • Fig. 2 is a horizontal section taken approximately on the line 2-2 of Fig. 1;
  • Fig. 3 is a section on the line 3-3 of Fig. 2;
  • Figs. 4, 5 and 6 are sections taken, respectively, on the lines 4-4, 5-5 and 66 of Fig. 3;
  • Figs. 7 and 8 are diagrams illustrating the operation of the tool carrier.
  • an elongated box-like casing C including a body I having a longitudinal midrib 2, extended inwardly from one side of the body.
  • the opposite side of the body I is closed by a cover 3, attached by securing elements 4 to the midrib 2, and by securing elements 5 to the body I.
  • Vertical holders 6 are located near the ends of the casing C and have vertically elongated recesses I that face the cover 3, the holders being held in place by certain of the securing elements 5.
  • a loop-shaped guide slot 8 is formed in the cover 3, and extends lengthwise of the casing C.
  • a power-driven shaft 9 is disposed longitudinally of the casing C and is journaled for rotation in the body I, at one side thereof.
  • the shaft 9 carries a worm l0, meshing with a worm wheel ll, mounted to turn on a stub shaft l2 carried by the side portion of the body I.
  • a driving sprocket wheel I4 is journaled on the stub shaft [2 and is connected with the worm wheel II, to turn therewith.
  • An idle sprocket wheel I5 is located at the end of the body I which is remote from the driving sprocket wheel M, the sprocket wheel l5 being journaled on a stub shaft [6, mounted in the side of the body I.
  • the sprocket wheels l4 and I5 are operatively connected by a sprocket chain l1. 1
  • the tool carrier l3 has two movements. One of these movements is a longitudinal movement, and the other is a transverse movement parallel to the driving sprocket wheel M, an observation which will be understood readily when Fig. 4 is noted.
  • the tool carrier I8 is shown as provided with rectangularly disposed arms I9, carrying a hack saw 20, but the tool to be reciprocatedis a matter of choice. The machine will operate a sand block (not shown), a file (not shown), or any analogous tool.
  • is secured to the sprocket chain IT and has a lateral foot 22, receiving a ball 23 on the inner end of a securing element 24, mounted in the tool carrier E8.
  • the securing element 24 is adapted to move in the loopshaped slot 8 of the cover 3.
  • the tool carrier I8 On itsinner side, the tool carrier I8 is. provided with a loop-shaped groove or guide 25.
  • the cover 3 carries an outwardly extended projection 26, received in the loop-shaped groove 25 of the tool carrier IS.
  • the projection 26 is coaxial with respect to the stub shaft l2 of Fig. 3, and is indicated in that figure by a dotted line.
  • the driving train for the tool carrier I8 includes the power shaft 9, the worm III, the worm wheel H, the driving sprocket l4, and the chain ll.
  • the bracket 2i on the sprocket chain, the foot 22 and the ball 23 cause the securing element 24 to move in an orbit, that orbit being determined, since the securing element 24 traverses the loop-shaped slot 8 of the part 3 of the casing C. Since the securing element 24 is mounted in the tool carrier l8, the tool carrier advances with the hack saw in contact with the work, the tool carrier being elevated at the forward end of the working stroke, and being carried backwardly, since the securing element 24 moves in the loop-shaped slot 8 of the casing part 3.
  • the fixed projection 26 cooperates with the loop-shaped groove of the tool carrier [8, to maintain the tool carrier in proper working position, an observation which will be understood clearly when Figs. 7 and 8 of the drawings are noted.
  • the device is of simple construction but will be found thoroughly effective to consummate the object set forth in the opening portion of this specification.
  • a machine for reciprocating a tool illustratively represented by a hack saw, comprising a support having an elongated loop-shaped guide, a tool carrier having an elongated loopshaped guide, a projection on the carrier and received in the guide of the support, a fixed projection on the casing and received in the guide of the tool carrier, and. means on the support for moving the projection of the carrier in an orbit determined by the guide of the support.
  • a machine for reciprocating a tool comprising a support having an elongated loop-shaped guide, a tool carrier having an elongated loopshaped guide, a projection on the carrier and received in the guide of the support, a. fixed projection on the casing and received in the guide of the tool carrier, a sprocket chain mounted to move on the support, and a connection between the sprocket chain and the projection of the carrier, the sprocket chain and the connection constituting means for moving the projection of the carrier in an orbit determined by the guide of the support.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Description

Jan. 14, 1941. J. w. REED MACHINE FOR RECIPROCATING A TOOL Filed April' 26, 1940 3 Sheets-Sheet l J k Wit 980d IN VEN TOR.
ATTORNEYS.
Jan. 14, 1941. w REED 2,228,485
' MACHINE FOR RECIPROCATINGA TOOL Filed April 26/1940 3Sheets-Sheet 2 4'4TT0RNEYS.
Patented Jan. 14, 1941 UNITED STATES PATENT OFFICE 2 Claims.
This invention aims to provide a simple but effective power-driven means for imparting reciprocation to a hack saw, file, sand block, or the like.
It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.
With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.
In the accompanying drawings:
Fig. 1 shows, in side elevation, a device constructed in accordance with the invention;
Fig. 2 is a horizontal section taken approximately on the line 2-2 of Fig. 1;
Fig. 3 is a section on the line 3-3 of Fig. 2;
Figs. 4, 5 and 6 are sections taken, respectively, on the lines 4-4, 5-5 and 66 of Fig. 3;
Figs. 7 and 8 are diagrams illustrating the operation of the tool carrier.
In carrying out the invention, there is provided an elongated box-like casing C, including a body I having a longitudinal midrib 2, extended inwardly from one side of the body. The opposite side of the body I is closed by a cover 3, attached by securing elements 4 to the midrib 2, and by securing elements 5 to the body I.
Vertical holders 6 are located near the ends of the casing C and have vertically elongated recesses I that face the cover 3, the holders being held in place by certain of the securing elements 5. A loop-shaped guide slot 8 is formed in the cover 3, and extends lengthwise of the casing C.
A power-driven shaft 9 is disposed longitudinally of the casing C and is journaled for rotation in the body I, at one side thereof. The shaft 9 carries a worm l0, meshing with a worm wheel ll, mounted to turn on a stub shaft l2 carried by the side portion of the body I. A driving sprocket wheel I4 is journaled on the stub shaft [2 and is connected with the worm wheel II, to turn therewith.
An idle sprocket wheel I5 is located at the end of the body I which is remote from the driving sprocket wheel M, the sprocket wheel l5 being journaled on a stub shaft [6, mounted in the side of the body I. The sprocket wheels l4 and I5 are operatively connected by a sprocket chain l1. 1
A tool carrier I8, in the form of a bar, extends lengthwise of the casing C and is received in the recesses I of the holders 6. The tool carrier l3 has two movements. One of these movements is a longitudinal movement, and the other is a transverse movement parallel to the driving sprocket wheel M, an observation which will be understood readily when Fig. 4 is noted. The tool carrier I8 is shown as provided with rectangularly disposed arms I9, carrying a hack saw 20, but the tool to be reciprocatedis a matter of choice. The machine will operate a sand block (not shown), a file (not shown), or any analogous tool.
A bracket 2| is secured to the sprocket chain IT and has a lateral foot 22, receiving a ball 23 on the inner end of a securing element 24, mounted in the tool carrier E8. The securing element 24 is adapted to move in the loopshaped slot 8 of the cover 3.
On itsinner side, the tool carrier I8 is. provided with a loop-shaped groove or guide 25. The cover 3 carries an outwardly extended projection 26, received in the loop-shaped groove 25 of the tool carrier IS. The projection 26 is coaxial with respect to the stub shaft l2 of Fig. 3, and is indicated in that figure by a dotted line.
The driving train for the tool carrier I8 includes the power shaft 9, the worm III, the worm wheel H, the driving sprocket l4, and the chain ll. The bracket 2i on the sprocket chain, the foot 22 and the ball 23 cause the securing element 24 to move in an orbit, that orbit being determined, since the securing element 24 traverses the loop-shaped slot 8 of the part 3 of the casing C. Since the securing element 24 is mounted in the tool carrier l8, the tool carrier advances with the hack saw in contact with the work, the tool carrier being elevated at the forward end of the working stroke, and being carried backwardly, since the securing element 24 moves in the loop-shaped slot 8 of the casing part 3.
The fixed projection 26 cooperates with the loop-shaped groove of the tool carrier [8, to maintain the tool carrier in proper working position, an observation which will be understood clearly when Figs. 7 and 8 of the drawings are noted.
The device is of simple construction but will be found thoroughly effective to consummate the object set forth in the opening portion of this specification.
Having thus described the invention, what is claimed is:
1. A machine for reciprocating a tool, illustratively represented by a hack saw, comprising a support having an elongated loop-shaped guide, a tool carrier having an elongated loopshaped guide, a projection on the carrier and received in the guide of the support, a fixed projection on the casing and received in the guide of the tool carrier, and. means on the support for moving the projection of the carrier in an orbit determined by the guide of the support.
2. A machine for reciprocating a tool, illustratively represented by a hack saw, comprising a support having an elongated loop-shaped guide, a tool carrier having an elongated loopshaped guide, a projection on the carrier and received in the guide of the support, a. fixed projection on the casing and received in the guide of the tool carrier, a sprocket chain mounted to move on the support, and a connection between the sprocket chain and the projection of the carrier, the sprocket chain and the connection constituting means for moving the projection of the carrier in an orbit determined by the guide of the support.
JOHN W. REED.
US33188240 1940-04-26 1940-04-26 Machine for reciprocating a tool Expired - Lifetime US2228485A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549934A (en) * 1946-11-16 1951-04-24 Saucke Herman Drill and saw machine
US2568791A (en) * 1946-06-10 1951-09-25 Cooper Corbet Portable power-driven hack saw
US2607107A (en) * 1946-11-16 1952-08-19 Saucke Herman Attachment for converting drill presses for sawing operations

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568791A (en) * 1946-06-10 1951-09-25 Cooper Corbet Portable power-driven hack saw
US2549934A (en) * 1946-11-16 1951-04-24 Saucke Herman Drill and saw machine
US2607107A (en) * 1946-11-16 1952-08-19 Saucke Herman Attachment for converting drill presses for sawing operations

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