US707357A - Power-shaft coupling. - Google Patents

Power-shaft coupling. Download PDF

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US707357A
US707357A US9861302A US1902098613A US707357A US 707357 A US707357 A US 707357A US 9861302 A US9861302 A US 9861302A US 1902098613 A US1902098613 A US 1902098613A US 707357 A US707357 A US 707357A
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tenons
collar
shaft
collars
opposite
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US9861302A
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Ole Rudd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16GBELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/10Quick-acting fastenings; Clamps holding in one direction only
    • 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
    • Y10T403/00Joints and connections
    • Y10T403/36Three or more serial joints, at least one diverse
    • Y10T403/364Separable intermediate joint

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  • Myinvention relates to couplings for powershafts, and has for its object the provision of a coupling with which two sections of a shaft may be readily and quickly coupled without projecting bolt heads or nuts.
  • Figure 1 is an end elevation of one section of theshaft, showing one of the coupling-collars applied thereto.
  • Fig. 2 is a similar view of the end of the opposing shaft-section with its coupling-collar in position.
  • Fig. 3 is a side ele vation of a portion of the sections of the shaft with their coupling-collars in position and separate.
  • Fig. 4 is a similar view, but showing the couplingcollars applied together.
  • Fig. 5 is a sectional view through the coupling-collars applied together, the shaft-sections being shown in elevation; and
  • Fig. 6 is an enlarged perspective view of one of the key-wedges employed in looking the couplingcollars together.
  • A adapted to receive the end of a section E of a power-shaft, which collar is enlarged at the forward end and provided with two or more longitudinally projecting radially disposed tenons 0t and preferably with a keyway a adapted to receive a shaft-engaging key 0, which is also engaged by a keyway '6, formed in said section-E, and which is preferably open at the end.
  • I further construct a cooperating collar B, adapted to receive the end of a section 6 of a power-shaft, which collar B is provided with two or more longitudinally-projecting radially-disposed dovetail tenons 17', adapted to project into recesses a formed by and between the tenons a,.the arc of each of tenons I) being shorter than the space a into which it projects, whereby it does not fill the same.
  • the tenons of opposite collars which preferably have their edges beveled to form dovetailed joints, may therefore be readily introduced into the recesses between the tenons of the respectively opposite collars, and a slight partial rotation in opposite directions of the respective sections of the shaft will cause the opposite tenons to interlock upon one of their respective edges, leaving a space between their other adjoining edges.
  • These spaces are filled and the opposing tenons further secured in interlocked position by the insertion of radially-disposed key-wedges d, operating as separated transverse extensions of the adjoining tenons, each of which wedges is preferably provided at its outer end with a lip,
  • the tenons b are also preferably transversely beveled at one of their upper corners, as at b to admit within the periphery of said collar the heads of said wedges d, the lips d whereof resting upon saidbeveled corner.
  • the incline formed by said beveled corner 12 is adapted also to permit the introduction of a foreign disengaging wedge or cutting-chisel under said lip 01, whereby said wedge may, if desired, be pried out or the head thereof cut 0E and thebody otherwise by any suitable means or method removed.
  • Said collar B is also preferably provided with a keyway (2 adapted to receive a shaft-engaging key 0, which is also engaged by a keyway 6 formed in said section a and preferably open at the end; but said collars may be secured to the respective sections of shaft by any suitable means or method within the scope of my said invention.
  • the respective shafts are then given a partial rotation in respectively opposite directions to effect the interlocking of the tenons of one collar with the tenons of the opposite collar, which are then further locked in position by driving the key-wedges d from the periphery into the recesses resulting from the disparity between the width of said tenons and of said recesses, such key-wedges crowding the opposing tenons into further engagement and themselves operating as lateral extensions of said tenons to fill said recesses.
  • Said wedges are designed to be retained by friction or compression.
  • a foreign disengaging wedge may be inserted under said lip d to pry said wedge out, or the head of said wedge may be cut off and the remainder bored out or driven into the shaft-keyway and pushed out or removed by any other suitable means or method.
  • each key-wedge d is correspondingly beveled, so as to fit perfectly between the edged faces of said tenons.
  • the key-wedges thus assist in completing the dovetailed connection between the collars and the coupling and make it impossible to pull the collars apart when the key-wedges are in place.
  • tenons of one collar being adapted to project into recessed spaces formed by and between the tenons of. the opposite collar and to engage the tenons thereof in interlocked posi tion, means being interposed between .one set of contiguous edges of said tenons for securing the same together, substantially as described.
  • Ashaft-coupling comprising cooperating collars adapted to receive a shaft, each collar being provided with longitudinally-projecting radially-disposed dovetailed tenons of a less width than the spaces between the said tenons on each collar, the tenons of one 001- lar being adapted to project into the recessed spaces formed between the tenons of the opposite collar,but not entirely filling the same, and means for filling the remainder of said spaces not occupied by said tenons for securing the said tenons of the opposing collars in interlocked position, substantially as described.
  • Ashaft-coupling comprisingcooperating collars adapted to receive a shaft, each collar being provided with longitudinally-project ing radially-disposed dovetail tenons having arcs of less length than the spaces intervening between the respective tenons of the opposite collar, the tenons of one collar being adapted to projectinto recessed spaces formed between the tenons of the opposite collar and to engage said tenons of said opposite collar in interlocked position; wedges between the edges of said tenons for securing the tenons of said opposite collars in interlocked .position, substantially as described.
  • Ashaft-coupling comprising cooperating collars adapted to receive a shaft, each collar being provided with longitudinally-projecting radially-disposed dovetail tenons having arcs of less length than the spaces intervening between the respective tenons of the opposite collar, the tenons of one collar being adapted to project into recessed spaces formed between the tenons of the opposite collar and to engage said tenons of said opposite collar in interlocked position; radially disposed wedges adapted to fill the remaining space between adjoining interlocked tenons and to secure the same in interlocked position, substantially as described.
  • Ashaft-coupling comprisingcooperating collars adapted to receive a shaft, each collar being provided with longitudinally-projecting radially-disposed dovetail tenons of less width, respectively than the spaces intervening between the respective tenons of the opposite collar, the tenons of one collar being beveled laterally at one upper corner, the tenons of one collar being adapted to engage and interlock with the tenons of the opposite collar; and key-Wedges for securing said tenons in interlocked position each formed with a disengaging lip at its upper end, substantially as described.
  • a shaft-coupling comprising cooperating collars secured to the ends of the shaft-sections which are to be coupled, the said collars between said collars, substantially as dehaving upon their meeting faces tenons scribed. 7 10 formed with dovetailed edged faces, key- In testimony whereof I hereunto affix my wedges having shanks formed with beveled signature in presence of two witnesses.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Description

No. 707,357. Patented Au l9, I902.
. 4 0. nunu.
POWE R SHAFT COUPLING.
(Application filed Mar. 17, 1902.)
(N0 Model.)
NITED STATES PATENT OFFICE.
OLE RUDD, OF WEST DULUTH, MINNESOTA.
POWER-SHAFT COUPLING.
SPECIFICATION forming part of Letters Patent NO. 707,357, dated August 19, 1902.
Application filed March 17, 1902.
To aZZ whom, it may concern.-
Be it known that I, OLE RUDD, a citizen of the United States, residing at West Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Power-Shaft Couplings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
Myinvention relates to couplings for powershafts, and has for its object the provision of a coupling with which two sections of a shaft may be readily and quickly coupled without projecting bolt heads or nuts.
It consists of cooperating collars secured, respectively, upon the opposing ends of adjoining sections of the shaft and formed with engaging faces by which one collar is adapted to mesh with the opposite collar and of keywedges or locking-pins to lock said collars in engagement.
It also consists of certain other constructions, combinations, and arrangements of parts, as will be hereinafter more particularly set forth and claimed.
In the accompanying drawings, Figure 1 is an end elevation of one section of theshaft, showing one of the coupling-collars applied thereto. Fig. 2 is a similar view of the end of the opposing shaft-section with its coupling-collar in position. Fig. 3 is a side ele vation of a portion of the sections of the shaft with their coupling-collars in position and separate. Fig. 4 is a similar view, but showing the couplingcollars applied together. Fig. 5 is a sectional view through the coupling-collars applied together, the shaft-sections being shown in elevation; and Fig. 6 is an enlarged perspective view of one of the key-wedges employed in looking the couplingcollars together.
It has been found desirable in the construction of power-shaft couplings to. obviate the use of all fastening means-which project from the coupling and which are liable to engage the clothing of attendants and also to minimize the number of parts involved without impairing the strength of the construction. To effect this purpose, I construct the collar Serial No. 98,613. (No model.)
A, adapted to receive the end of a section E of a power-shaft, which collar is enlarged at the forward end and provided with two or more longitudinally projecting radially disposed tenons 0t and preferably with a keyway a adapted to receive a shaft-engaging key 0, which is also engaged by a keyway '6, formed in said section-E, and which is preferably open at the end. I further construct a cooperating collar B, adapted to receive the end of a section 6 of a power-shaft, which collar B is provided with two or more longitudinally-projecting radially-disposed dovetail tenons 17', adapted to project into recesses a formed by and between the tenons a,.the arc of each of tenons I) being shorter than the space a into which it projects, whereby it does not fill the same. The tenons of opposite collars, which preferably have their edges beveled to form dovetailed joints, may therefore be readily introduced into the recesses between the tenons of the respectively opposite collars, and a slight partial rotation in opposite directions of the respective sections of the shaft will cause the opposite tenons to interlock upon one of their respective edges, leaving a space between their other adjoining edges. These spaces are filled and the opposing tenons further secured in interlocked position by the insertion of radially-disposed key-wedges d, operating as separated transverse extensions of the adjoining tenons, each of which wedges is preferably provided at its outer end with a lip,
-,as at d, preferably beveled downwardly and inwardly on its lower face. The tenons b are also preferably transversely beveled at one of their upper corners, as at b to admit within the periphery of said collar the heads of said wedges d, the lips d whereof resting upon saidbeveled corner. The incline formed by said beveled corner 12 is adapted also to permit the introduction of a foreign disengaging wedge or cutting-chisel under said lip 01, whereby said wedge may, if desired, be pried out or the head thereof cut 0E and thebody otherwise by any suitable means or method removed. Said collar B is also preferably provided with a keyway (2 adapted to receive a shaft-engaging key 0, which is also engaged by a keyway 6 formed in said section a and preferably open at the end; but said collars may be secured to the respective sections of shaft by any suitable means or method within the scope of my said invention.
In operation I preferably first secure the respective collars, preferably by said keys, to their respective sections of the shaft and then bring them together, end on, into engagement with each other, the ends of the shaft abutting against each other, the keyways of the respective sections registering with each other, and the dovetail tenons of one collar projecting into the dovetail recesses of the opposing collar. The respective shafts are then given a partial rotation in respectively opposite directions to effect the interlocking of the tenons of one collar with the tenons of the opposite collar, which are then further locked in position by driving the key-wedges d from the periphery into the recesses resulting from the disparity between the width of said tenons and of said recesses, such key-wedges crowding the opposing tenons into further engagement and themselves operating as lateral extensions of said tenons to fill said recesses. Said wedges are designed to be retained by friction or compression. If desired to disengage them, a foreign disengaging wedge may be inserted under said lip d to pry said wedge out, or the head of said wedge may be cut off and the remainder bored out or driven into the shaft-keyway and pushed out or removed by any other suitable means or method.
It will be seen that since the opposing edges of the tenons carried by the collars are beveled the shank of each key-wedge d is correspondingly beveled, so as to fit perfectly between the edged faces of said tenons. The key-wedges thus assist in completing the dovetailed connection between the collars and the coupling and make it impossible to pull the collars apart when the key-wedges are in place.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is
1. In a shaft-coupling the combination of cooperatin g collars respectivelysecured to the opposing ends of opposite sections of a shaft, said collars each being provided with longitudinally-projecting dovetail tenons having arcs of less length than the respectively intervening spaces, the tenons on one collar being adapted to project into the recessed spaces formed by and between the tenons of the opposite collar and to engage the tenons of said opposite collar, a sufficient space being left between the edges of said tenons for the introduction of securing means, and securing means within said space, substantially as described.
2. In a shaft-coupling, the combination of cooperating collars respectively secured to the opposing ends of opposite sections of a shaft, said collars being provided with longitudinally projecting radially disposed dovetail tenons, having arcs of less length than the respectively intervening recessed spaces, the
tenons of one collar being adapted to project into recessed spaces formed by and between the tenons of. the opposite collar and to engage the tenons thereof in interlocked posi tion, means being interposed between .one set of contiguous edges of said tenons for securing the same together, substantially as described.
3. Ashaft-coupling,comprising cooperating collars adapted to receive a shaft, each collar being provided with longitudinally-projecting radially-disposed dovetailed tenons of a less width than the spaces between the said tenons on each collar, the tenons of one 001- lar being adapted to project into the recessed spaces formed between the tenons of the opposite collar,but not entirely filling the same, and means for filling the remainder of said spaces not occupied by said tenons for securing the said tenons of the opposing collars in interlocked position, substantially as described.
4. Ashaft-couplingcomprisingcooperating collars adapted to receive a shaft, each collar being provided with longitudinally-project ing radially-disposed dovetail tenons having arcs of less length than the spaces intervening between the respective tenons of the opposite collar, the tenons of one collar being adapted to projectinto recessed spaces formed between the tenons of the opposite collar and to engage said tenons of said opposite collar in interlocked position; wedges between the edges of said tenons for securing the tenons of said opposite collars in interlocked .position, substantially as described.
5. Ashaft-coupling comprising cooperating collars adapted to receive a shaft, each collar being provided with longitudinally-projecting radially-disposed dovetail tenons having arcs of less length than the spaces intervening between the respective tenons of the opposite collar, the tenons of one collar being adapted to project into recessed spaces formed between the tenons of the opposite collar and to engage said tenons of said opposite collar in interlocked position; radially disposed wedges adapted to fill the remaining space between adjoining interlocked tenons and to secure the same in interlocked position, substantially as described.
6. Ashaft-couplingcomprisingcooperating collars adapted to receive a shaft, each collar being provided with longitudinally-projecting radially-disposed dovetail tenons of less width, respectively than the spaces intervening between the respective tenons of the opposite collar, the tenons of one collar being beveled laterally at one upper corner, the tenons of one collar being adapted to engage and interlock with the tenons of the opposite collar; and key-Wedges for securing said tenons in interlocked position each formed with a disengaging lip at its upper end, substantially as described.
7 A shaft-coupling comprising cooperating collars secured to the ends of the shaft-sections which are to be coupled, the said collars between said collars, substantially as dehaving upon their meeting faces tenons scribed. 7 10 formed with dovetailed edged faces, key- In testimony whereof I hereunto affix my wedges having shanks formed with beveled signature in presence of two witnesses.
5 faces corresponding with the beveled faces of OLE RUDD.
the said tenons, the said wedges fitting be- Witnesses: tween the edges of the tenons of the cooper- JAMES T. WATSON,
ating collars for completing a dovetail joint PHINEAS AYER.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738210A (en) * 1951-03-28 1956-03-13 Alf H Hjembo Coupling device
US3545018A (en) * 1967-12-14 1970-12-08 Glenn H Peterson Method and apparatus for cutting multiple threads in large workpieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738210A (en) * 1951-03-28 1956-03-13 Alf H Hjembo Coupling device
US3545018A (en) * 1967-12-14 1970-12-08 Glenn H Peterson Method and apparatus for cutting multiple threads in large workpieces

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