US1589167A - Lifting jack - Google Patents
Lifting jack Download PDFInfo
- Publication number
- US1589167A US1589167A US722938A US72293824A US1589167A US 1589167 A US1589167 A US 1589167A US 722938 A US722938 A US 722938A US 72293824 A US72293824 A US 72293824A US 1589167 A US1589167 A US 1589167A
- Authority
- US
- United States
- Prior art keywords
- section
- sections
- lifting jack
- coacting
- threads
- Prior art date
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings
Definitions
- This invention relates to improvements in lifting acks.
- the main objects of this invention are to provide an improved lifting jack which has a relatively long range or throw and at the same time 18 very compact.
- a further object is to provide a lifting jack having these advantages which is economical in structure.
- Fig. I is a fragmentary elevation of a lifting jack embodying the features of my invention, the standard being fully extended.
- Fig. II is a side elevation of a jack in collapsed position, the driving shaft or crank being partially broken away.
- Fig. III is a fragmentary vertical central section through the driving means.
- my improved lifting jack comprises a plurality of sections 1, 2 and 3, section 1 being the base section,
- Section 2 the intermediate section and section 3 the top section.
- Sections 1 and 2 are tubular and internally threaded.
- Section 2 has an enlarged nut portion l coacting with the threads 5 of the bottom or base section.
- Section 3 has a nut portionfi coacting with the threads 7 of the intermediate section.
- the threads 5 and 7 are of different pitch so that when the top section 3 is rotated it is first extended, its nut portion 6 engaging the shoulder stop 8 at the top of section 2 causes the section 2 to rotate whereby it is.
- the bottom and intermediate sections have unthreaded inwardly projecting flange-like portions at their upper ends which coact with the sections arranged therethrough to laterally support the same. In ractice these parts are not a close bearing t; some invention is as'the part, such as a vehicle axle, is tilted in raising the same. These unthreaded portions, however, do serve as hearing members limiting this lateral swing and relieving the threads of strain and preventing an undue camming or binding action thereon.
- the top section is provided with a head 10 having a laterally projecting angled arm 11 carrying the driving or crank shaft 12 which is provided with a crank 13 at its outer end.
- a crank 13 On the inner end of this shaft 12 is a beveled gear 14 meshing with the gear 15 secured. to the standard section 3.
- My improved jack is very compact when collapsed. and at the same time has a relatively long stroke, thereby especially adapt- 111g it for vehicles equipped with balloon tires or where a long throw or stroke is required.
- a lifting jack the combination of an internally threaded standard with an unthreaded bearing portion at its upper end, an internally threaded intermediate section having an nnthreaded inwardly projecting flange at its upper end and an external threaded portion at its lower end coacting with the threads of said lower section, a top section having a threaded portion at its lower end coacting with the internal threads of said intermediate portion, the unthreaded flanges of said bottom and intermediate sections constituting lateral supports for the parts disposed therethrough, a head swiveled upon the top section and provided with a laterally projecting arm, a driving shaft carried by said arm, and coacting gears on said driving shaft and said top section, said driving shaft constituting means for positioning and supporting said head against rotation.
- a lifting jack the combination of a standard comprising a plurality of telescoping sections, the lower and intermediate sections being tubular and threaded and having unthreadeol portions at internally their upper ends, the top and intermediate sections having external threads coacting with the internal threads of said intermediate and bottom sections, respectively, the unthreaded portions of said bottom and intermediate sections constituting lateral supports for the sections arranged therethrough, a head swiveled upon the top section and provided with a laterally projecting arm, a driving shatt carried by said arm, and coacting gears on said driving shaft and said top section, said driving shaft constituting means for positioning and supporting said head against rotation.
- a standard comprising a plin'ality ot telescoping sections, the lower and intermediate sections being tubular and internally threaded and having unthread-ed portions at their upper ends, the top and intermediate sections having external tl'n'eads coacting with the internal threads of said intermediate and bottom sections, respectively, the nnthreaded portions of said bottom and intermediate sections constituting lateral supports for the sections arranged there through, and means for rotating the top section.
- a lifting jack the combination of a standard comprising a plurality of telescoping sections having threaded engagement, the pitch of the threads being varied so that the sections are successively extended upon rotation of the top section, a sn'iveled head upon the top section and provided with a laterally projecting arm. a driving shat't carried by said arm, and coacting gears on said driving shaft and said top section, said driving shaft constituting means for positioning and supporting said head against rotation.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
June 15 1926.
A. c. HOPKINS LIFTING JACK Filed June 28 \\\\\I|IIIIIIII 8 5 w w WWJMM m m a A GWM Patented June 15, 1926.
rarest @FFECE.
ARTHUR C. HOPKINS, OF NILES, MICHIGAN, ASSIGNOR TC NATIONAL STANDARD COM- PANY, N'ILES, MICHIGAN.
LIFIING: JACK.
Application filed June 28, 1924. semi No. 722,938.
This invention relates to improvements in lifting acks.
The main objects of this invention are to provide an improved lifting jack which has a relatively long range or throw and at the same time 18 very compact.
A further object is to provide a lifting jack having these advantages which is economical in structure.
Objects relating to details and economies of construction and operation will definitely appear from the detailed description to follow. 2
I accomplish the objects of my invention by the devices and means described in the following specification. The clearly defined and pointed out in the claims.
A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this application, in which:
Fig. I is a fragmentary elevation of a lifting jack embodying the features of my invention, the standard being fully extended.
Fig. II is a side elevation of a jack in collapsed position, the driving shaft or crank being partially broken away.
Fig. III is a fragmentary vertical central section through the driving means.
In the drawing similar reference characters refer to similar parts throughout the several views.
Referring to the drawing, my improved lifting jack comprises a plurality of sections 1, 2 and 3, section 1 being the base section,
section 2 the intermediate section and section 3 the top section. Sections 1 and 2 are tubular and internally threaded. Section 2 has an enlarged nut portion l coacting with the threads 5 of the bottom or base section. Section 3 has a nut portionfi coacting with the threads 7 of the intermediate section.
The threads 5 and 7 are of different pitch so that when the top section 3 is rotated it is first extended, its nut portion 6 engaging the shoulder stop 8 at the top of section 2 causes the section 2 to rotate whereby it is.
extended until its nut portion 4 engages the stop 9 at the upper end of the section 1. The bottom and intermediate sections have unthreaded inwardly projecting flange-like portions at their upper ends which coact with the sections arranged therethrough to laterally support the same. In ractice these parts are not a close bearing t; some invention is as'the part, such as a vehicle axle, is tilted in raising the same. These unthreaded portions, however, do serve as hearing members limiting this lateral swing and relieving the threads of strain and preventing an undue camming or binding action thereon.
By attaching the shaft 12 as is described it servesas a means for locating the jack and for preventing the head from rotating prior to its engagement with the axle or part to be lifted.
The top section is provided with a head 10 having a laterally projecting angled arm 11 carrying the driving or crank shaft 12 which is provided with a crank 13 at its outer end. On the inner end of this shaft 12 is a beveled gear 14 meshing with the gear 15 secured. to the standard section 3.
My improved jack is very compact when collapsed. and at the same time has a relatively long stroke, thereby especially adapt- 111g it for vehicles equipped with balloon tires or where a long throw or stroke is required.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:
1. In a lifting jack, the combination of an internally threaded standard with an unthreaded bearing portion at its upper end, an internally threaded intermediate section having an nnthreaded inwardly projecting flange at its upper end and an external threaded portion at its lower end coacting with the threads of said lower section, a top section having a threaded portion at its lower end coacting with the internal threads of said intermediate portion, the unthreaded flanges of said bottom and intermediate sections constituting lateral supports for the parts disposed therethrough, a head swiveled upon the top section and provided with a laterally projecting arm, a driving shaft carried by said arm, and coacting gears on said driving shaft and said top section, said driving shaft constituting means for positioning and supporting said head against rotation.
2. Ina lifting jack, the combination of a standard comprising a plurality of telescoping sections, the lower and intermediate sections being tubular and threaded and having unthreadeol portions at internally their upper ends, the top and intermediate sections having external threads coacting with the internal threads of said intermediate and bottom sections, respectively, the unthreaded portions of said bottom and intermediate sections constituting lateral supports for the sections arranged therethrough, a head swiveled upon the top section and provided with a laterally projecting arm, a driving shatt carried by said arm, and coacting gears on said driving shaft and said top section, said driving shaft constituting means for positioning and supporting said head against rotation.
3. In a lifting jack, the combination oil? a standard comprising a plin'ality ot telescoping sections, the lower and intermediate sections being tubular and internally threaded and having unthread-ed portions at their upper ends, the top and intermediate sections having external tl'n'eads coacting with the internal threads of said intermediate and bottom sections, respectively, the nnthreaded portions of said bottom and intermediate sections constituting lateral supports for the sections arranged there through, and means for rotating the top section.
4. In a lifting jack, the combination of a standard comprising a plurality of telescoping sections having threaded engagement, the pitch of the threads being varied so that the sections are successively extended upon rotation of the top section, a sn'iveled head upon the top section and provided with a laterally projecting arm. a driving shat't carried by said arm, and coacting gears on said driving shaft and said top section, said driving shaft constituting means for positioning and supporting said head against rotation.
In Witness whereof I have hereunto set my hand.
ARTHUR C. HOPKINS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US722938A US1589167A (en) | 1924-06-28 | 1924-06-28 | Lifting jack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US722938A US1589167A (en) | 1924-06-28 | 1924-06-28 | Lifting jack |
Publications (1)
Publication Number | Publication Date |
---|---|
US1589167A true US1589167A (en) | 1926-06-15 |
Family
ID=24904063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US722938A Expired - Lifetime US1589167A (en) | 1924-06-28 | 1924-06-28 | Lifting jack |
Country Status (1)
Country | Link |
---|---|
US (1) | US1589167A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2739788A (en) * | 1954-11-30 | 1956-03-27 | Henry S Weaver | Jack |
-
1924
- 1924-06-28 US US722938A patent/US1589167A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2739788A (en) * | 1954-11-30 | 1956-03-27 | Henry S Weaver | Jack |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2069012A (en) | Vehicle jack | |
US1589167A (en) | Lifting jack | |
US1862759A (en) | Double lift single screw jack | |
US1938404A (en) | Jack | |
US1597347A (en) | Lifting jack | |
US1275971A (en) | Jack for automobiles. | |
US1389737A (en) | burrows | |
US1359790A (en) | Loading and unloading device | |
US1929262A (en) | Automobile jack | |
US1413143A (en) | Auto jack | |
US1878219A (en) | Lifting jack | |
US1379012A (en) | Jack | |
US1874357A (en) | Jack | |
US1648188A (en) | Jack | |
US3149822A (en) | Permanent auto-jack | |
US1465570A (en) | Lifting jack | |
USRE19923E (en) | Balloon tire jack | |
USRE14465E (en) | Henby l benedict | |
US1842959A (en) | Screw jack mechanism | |
DE859080C (en) | Impeller bearing for binding mower | |
US2153530A (en) | Device for jacking up of motor vehicles or other power propelled contrivances | |
US1906365A (en) | Vehicle jack | |
US1108522A (en) | Combined lifting-jack and shock-absorber for automobiles and like vehicles. | |
US1486179A (en) | Lifting jack | |
US1722275A (en) | Lifting jack |