US2488476A - Jack attachment - Google Patents

Jack attachment Download PDF

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Publication number
US2488476A
US2488476A US623708A US62370845A US2488476A US 2488476 A US2488476 A US 2488476A US 623708 A US623708 A US 623708A US 62370845 A US62370845 A US 62370845A US 2488476 A US2488476 A US 2488476A
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United States
Prior art keywords
jack
shaft
stud
sleeve
attachment
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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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US623708A
Inventor
William S Pine
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
    • Y10T29/53857—Central screw, work-engagers around screw
    • Y10T29/53861—Work-engager arms along or parallel to screw
    • Y10T29/5387—Pivotal arms

Definitions

  • My invention relates to jacks, and particularly to an. attachment for jacks for separating one member from another.
  • One of the principal objects of this invention is to provide a jack which may be used as an arbor press, and whereby a shaft or other central member may bereadily forced from a wheel, or other member, mounted on or secured to the shaft or other member.
  • Another important object of this invention is to provide an attachment for a central lift jack whereby the wheel, or other member, may be raised, removed, or withdrawn from the shaft or other central member.
  • An important-object also of this invention is to provide an attachment for a hollow central lift jack forperformingthe above function.
  • Still another object of this invention is to provide an attachment of this class for jacks which is relatively simple and economical of construction, durable, and which may be readily applied to the jack and to the work or members to be separated.
  • Fig. 1 is a sectional elevation of a hydraulic jack incorporating my invention in one form, a portion being shown in section to facilitate the illustration;
  • Fig. 2 is a transverse sectional view thereof, taken through 2-2 of Fig. 1;
  • Fig. 3 is a fragmentary sectional elevational view of a slightly modified form of construction.
  • the jack shown in Fig. 1 is a hydraulic jack, shown in one form in my copending patent application, Serial No. 572,309. It consists essentially' of an outer cylinder or jack member I, which supports the jack, and an inner cylinder or jack member 2 which is telescopically mounted within and which is raised with respect to the jack member I by fluid 3 within the latter.
  • Axially located within the'jack is a lift rod 4, the upper end of which is supported on a washer or plate 5 resting on the upper end of the inner jack member 4. Raising of the inner jack member causes the rod to be lifted for raising or moving objects upwardly toward or with respect to the bottom or base of the jack member I.
  • the improvements of my present invention which are located below the normal base of the jack, consist of a normally stationary member I I and a movable member I2.
  • the stationary member II When it is desired to drive the shaft 2
  • the stationary member II is in the form of a hollow cylinder, the upper end of which has a head I l positioned against the bottom of the jack memberfl, and a hole II b in the center of the head through which the rod 4 extends. This rod also locates the jack with respect to the member II.
  • the lower end of the cylindrical member II has a cross-bar II in the middle of which is screwed the reduced and flanged upper end of the stud I3.
  • the movable member I2 is also a hollow cylindrical member which is axially mounted and movable within the cylindrical member I I.
  • the member I2 also has a head I2 into which the lower end of the rod 4 is screwed.
  • the diametrically opposite sides of the member I2 have longitudinal slots I2 through which the bar I I extends, thus further guiding the members II and I2 with respect to each other in their reciprocal movement.
  • the stud I3 extends through a hole in the head I2 at the lower end of the member I 2.
  • the member I2 has at its lower end external threads I2 which in this instance are screwed into a hole in the wheel member 22 immediately around the shaft 2
  • the stationary member 3 I corresponding to the member II in the first described structure, has the longitudinal slots, designated 3 I, at diametrically opposite sides. Through these slots extends a cross-head 32, which is secured at its middle por tion to the lower end of the rod 4.
  • the opposite ends of the cross-head extend considerably beyond the contour of the member 3
  • arms 33 having at their lower ends inwardly directed fingers or hooks 33.
  • Each of the shanks of the arms also has a plurality of spaced holes 33.
  • the arms may be adjustably secured to the cross-head by pins 34, depending upon the size and position of the wheel, or other member 22, around or over the peripheral portion of which the fingers 33 are desired to be hooked.
  • the stud I3 is positioned against the end of the shaft 2
  • the devices shown and described for separating the members 21 and 22 are preferably in the form of attachments which may be easily and opera- ,tively connected to a conventional jack, and particularly to the type of jack shown.
  • a tool for removing an internally threaded element from an axial shaft the combination of: a sleeve; a stud carried by said sleeve and having an end adapted to abut the end of the shaft; 21 pulling member slidable in said sleeve and over said stud and having a screw-threaded end adapted to be screwed into the element to be removed; and fluid-actuated means for sliding said pulling member in a direction away from the end of the shaft so as to withdraw the element axially from the shaft.
  • a tool for removing an internally threaded element from an axial shaft the combination of: a sleeve having a cross-bar at one end; an abutment stud carried by said cross-bar and projecting coaxially from said sleeve, said stud having an end adapted to abut the end of the shaft; a pulling member slidable in said sleeve and over said stud and having longitudinal openings through which said cross-bar extends, said pulling member having an externally threaded end disposed adjacent said end of said stud and adapted to be screwed into the element to be removed; and. fluid-actuated means operative to slide said pulling member in a direction away from the end of the shaft so as to withdraw the element axially from the shaft.
  • a tool for removing an element axially from a shaft the combination of a sleeve having a cross-bar at one end; an abutment stud carried by said cross-bar and projecting coaxially from said sleeve, said stud having an end adapted to abut. the end of the shaft; a pulling member slidable in said sleeve and over said stud and having longitudinal openings through which said crossbar extends, said pulling member projecting from said sleeve and having engaging means at its end disposed adjacent said end of said stud and adapted to engage the element; and fluid-actuated means operative to slide said pulling member in a direction away from the end of the shaft so as to withdraw the element axially from the shaft.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Description

W. S. PINE JACK ATTACHMENT Ndv. 15, 1949 Filed Oct. 22, 1945 INVENTOR. zz/zzzzmatfipw Patented Nov. 15, 1949 UNITED STATES PATENT OFFICE JACK ATTlQCHMENT William S. PineJlosAngeles, Calif. Application October 22, 1945, Serial No. 623,708
r 3 Claims. (01. 29-252) My invention relates to jacks, and particularly to an. attachment for jacks for separating one member from another.
- One of the principal objects of this invention is to provide a jack which may be used as an arbor press, and whereby a shaft or other central member may bereadily forced from a wheel, or other member, mounted on or secured to the shaft or other member.
Another important object of this invention is to provide an attachment for a central lift jack whereby the wheel, or other member, may be raised, removed, or withdrawn from the shaft or other central member.
An important-object also of this invention is to provide an attachment for a hollow central lift jack forperformingthe above function.
A further important object of this invention is to provide an attachment of this class whereby the wheel, or other similar member, may be readily gripped, by one member of a jack, adjacent to or immediately around the shaft which is to be removed or forced therefrom by another member of the jack. 7 v V A still further object of this invention is to provide an attachment of this class whereby the Wheel, or other member, may be readily gripped at its peripheral portion for performing such function.
Still another object of this invention is to provide an attachment of this class for jacks which is relatively simple and economical of construction, durable, and which may be readily applied to the jack and to the work or members to be separated.
With these and other objects in view, as will appear hereinafter, I have devised a jack, or an attachment for jacks, having certain novel features of construction, combination, and arrangement of parts and portions, as will be hereinafter described in detail and particularly set forth in the appended claims, reference being had to the accompanying drawings and to the characters of reference thereon, which form a part of this application, in which:
Fig. 1 is a sectional elevation of a hydraulic jack incorporating my invention in one form, a portion being shown in section to facilitate the illustration;
Fig. 2 is a transverse sectional view thereof, taken through 2-2 of Fig. 1; and
Fig. 3 is a fragmentary sectional elevational view of a slightly modified form of construction.
The jack shown in Fig. 1 is a hydraulic jack, shown in one form in my copending patent application, Serial No. 572,309. It consists essentially' of an outer cylinder or jack member I, which supports the jack, and an inner cylinder or jack member 2 which is telescopically mounted within and which is raised with respect to the jack member I by fluid 3 within the latter. Axially located within the'jack is a lift rod 4, the upper end of which is supported on a washer or plate 5 resting on the upper end of the inner jack member 4. Raising of the inner jack member causes the rod to be lifted for raising or moving objects upwardly toward or with respect to the bottom or base of the jack member I.
The improvements of my present invention, which are located below the normal base of the jack, consist of a normally stationary member I I and a movable member I2. When it is desired to drive the shaft 2| from a wheel or gear 22, or the like, the stationary member II is placed, by an intermediate member I3, in the form of a stud or drift, against the end of the shaft 2 I. The stationary member II is in the form of a hollow cylinder, the upper end of which has a head I l positioned against the bottom of the jack memberfl, and a hole II b in the center of the head through which the rod 4 extends. This rodalso locates the jack with respect to the member II. The lower end of the cylindrical member II has a cross-bar II in the middle of which is screwed the reduced and flanged upper end of the stud I3.
The movable member I2 is also a hollow cylindrical member which is axially mounted and movable within the cylindrical member I I. The member I2 also has a head I2 into which the lower end of the rod 4 is screwed. The diametrically opposite sides of the member I2 have longitudinal slots I2 through which the bar I I extends, thus further guiding the members II and I2 with respect to each other in their reciprocal movement.
The stud I3 extends through a hole in the head I2 at the lower end of the member I 2.
The member I2 has at its lower end external threads I2 which in this instance are screwed into a hole in the wheel member 22 immediately around the shaft 2|, thereby gripping the wheel, or other member. Normal operation of the jack causes the wheel, or other member 22, to be raised against the shaft 2 I, and thereby driving the shaft therefrom.
In the modified structure shown in Fig. 3, the stationary member 3 I, corresponding to the member II in the first described structure, has the longitudinal slots, designated 3 I, at diametrically opposite sides. Through these slots extends a cross-head 32, which is secured at its middle por tion to the lower end of the rod 4. The opposite ends of the cross-head extend considerably beyond the contour of the member 3| and are provided at their end portions with a plurality of spaced holes 32. From the end portions of the cross-head depend arms 33 having at their lower ends inwardly directed fingers or hooks 33. Each of the shanks of the arms also has a plurality of spaced holes 33. Thus, the arms may be adjustably secured to the cross-head by pins 34, depending upon the size and position of the wheel, or other member 22, around or over the peripheral portion of which the fingers 33 are desired to be hooked. The stud I3 is positioned against the end of the shaft 2| as described above.
In both structures the ends of the studs or drifts 13 have central pointed projections l3 for locating the stud against the shaft 2|.
The devices shown and described for separating the members 21 and 22 are preferably in the form of attachments which may be easily and opera- ,tively connected to a conventional jack, and particularly to the type of jack shown.
Though I have shown and described a particular construction, combination, and arrangement of parts and portions, and a certain modification thereof, I do not wish to be limited to the same. but desire to include in the scope of my invention, the construction, combination, and arrangement substantially as set forth in the appended claims.
I claim:
1. In a tool for removing an internally threaded element from an axial shaft, the combination of: a sleeve; a stud carried by said sleeve and having an end adapted to abut the end of the shaft; 21 pulling member slidable in said sleeve and over said stud and having a screw-threaded end adapted to be screwed into the element to be removed; and fluid-actuated means for sliding said pulling member in a direction away from the end of the shaft so as to withdraw the element axially from the shaft.
2. In a tool for removing an internally threaded element from an axial shaft, the combination of: a sleeve having a cross-bar at one end; an abutment stud carried by said cross-bar and projecting coaxially from said sleeve, said stud having an end adapted to abut the end of the shaft; a pulling member slidable in said sleeve and over said stud and having longitudinal openings through which said cross-bar extends, said pulling member having an externally threaded end disposed adjacent said end of said stud and adapted to be screwed into the element to be removed; and. fluid-actuated means operative to slide said pulling member in a direction away from the end of the shaft so as to withdraw the element axially from the shaft.
3. In a tool for removing an element axially from a shaft, the combination of a sleeve having a cross-bar at one end; an abutment stud carried by said cross-bar and projecting coaxially from said sleeve, said stud having an end adapted to abut. the end of the shaft; a pulling member slidable in said sleeve and over said stud and having longitudinal openings through which said crossbar extends, said pulling member projecting from said sleeve and having engaging means at its end disposed adjacent said end of said stud and adapted to engage the element; and fluid-actuated means operative to slide said pulling member in a direction away from the end of the shaft so as to withdraw the element axially from the shaft.
WILLIAM S. PINE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 975,467 Scott Nov. 15, 1910 977,018 Kopietz a Nov. 29, 1910 1,344,510 Hilliard June 22, 1920 1,516,298 Iverson Nov. 18, 1924 1,584,855 Eisenhuth May 18, 1926 1,869,687 Hart Aug. 2, 1932 2,003,756 Nagel June 4, 1935 2,085,111 McConnell June 29, 1937 2,252,036 Hummer Aug. 12, 1941
US623708A 1945-10-22 1945-10-22 Jack attachment Expired - Lifetime US2488476A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334404A (en) * 1966-10-27 1967-08-08 United States Steel Corp Hub-pulling apparatus
US3388501A (en) * 1965-04-21 1968-06-18 Voest Ag Apparatus for removing and installing crucible or converter bottoms
US4472869A (en) * 1981-09-09 1984-09-25 Toyota Jidosha Kabushiki Kaisha Method of assembling transmission gears

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US975467A (en) * 1908-12-14 1910-11-15 Westinghouse Electric & Mfg Co Fluid-pressure appliance.
US977018A (en) * 1909-12-22 1910-11-29 Julius Kopietz Key-extractor.
US1344510A (en) * 1919-10-18 1920-06-22 Albert W Hilliard Hydraulic gear-jack
US1516298A (en) * 1923-08-27 1924-11-18 Iverson Christian Puller device for bearings
US1584855A (en) * 1924-08-23 1926-05-18 Frederick G Eisenhuth Gear or pulley removing tool
US1869687A (en) * 1929-12-18 1932-08-02 Osco E Hart Tool for removing wheels from automobile axles
US2003756A (en) * 1934-05-28 1935-06-04 Howard K Nagel Hydraulic puller
US2085111A (en) * 1935-03-08 1937-06-29 Herbert Clyde Mcconnell Jack
US2252036A (en) * 1939-06-21 1941-08-12 Henry M Powell Hydraulic pulling and pressing tool

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US975467A (en) * 1908-12-14 1910-11-15 Westinghouse Electric & Mfg Co Fluid-pressure appliance.
US977018A (en) * 1909-12-22 1910-11-29 Julius Kopietz Key-extractor.
US1344510A (en) * 1919-10-18 1920-06-22 Albert W Hilliard Hydraulic gear-jack
US1516298A (en) * 1923-08-27 1924-11-18 Iverson Christian Puller device for bearings
US1584855A (en) * 1924-08-23 1926-05-18 Frederick G Eisenhuth Gear or pulley removing tool
US1869687A (en) * 1929-12-18 1932-08-02 Osco E Hart Tool for removing wheels from automobile axles
US2003756A (en) * 1934-05-28 1935-06-04 Howard K Nagel Hydraulic puller
US2085111A (en) * 1935-03-08 1937-06-29 Herbert Clyde Mcconnell Jack
US2252036A (en) * 1939-06-21 1941-08-12 Henry M Powell Hydraulic pulling and pressing tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388501A (en) * 1965-04-21 1968-06-18 Voest Ag Apparatus for removing and installing crucible or converter bottoms
US3334404A (en) * 1966-10-27 1967-08-08 United States Steel Corp Hub-pulling apparatus
US4472869A (en) * 1981-09-09 1984-09-25 Toyota Jidosha Kabushiki Kaisha Method of assembling transmission gears

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