US260892A - Worm-gear machinery - Google Patents
Worm-gear machinery Download PDFInfo
- Publication number
- US260892A US260892A US260892DA US260892A US 260892 A US260892 A US 260892A US 260892D A US260892D A US 260892DA US 260892 A US260892 A US 260892A
- Authority
- US
- United States
- Prior art keywords
- worm
- machinery
- gear
- worms
- gear machinery
- 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
- QMBJSIBWORFWQT-UHFFFAOYSA-N (17-acetyl-6-chloro-10,13-dimethyl-3-oxo-2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthren-17-yl) acetate Chemical compound C1=C(Cl)C2=CC(=O)CCC2(C)C2C1C1CCC(C(C)=O)(OC(=O)C)C1(C)CC2 QMBJSIBWORFWQT-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
-
- 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
- Y10T74/19—Gearing
- Y10T74/19642—Directly cooperating gears
- Y10T74/19698—Spiral
- Y10T74/19828—Worm
Definitions
- PETERS Patented July 11 N. PETERS, Pbolo-Lilhognpmr. Wnhnn'lon. D. C.
- the object of our invention is to provide-a suitable means of taking up lost motion in worm-wheel gearing, such as is generally used in elevator and hoisting machinery; and it consists in making the worm in two separate castingsor pieces,andprovidingsuitablemeans of adjustment, as hereinafter more fully described.
- a in the drawing represents the worm-gear which rotates on axle b.
- a a are bearings which support shaft B, on which the two tapering or conical worms 0 and d are fastened with set-screws e and f.
- 0 represents a pulley, which is intended to be driven by a belt.
- the adjustment may be made by setting up either or both of the worms,if itis desirable to do so; and to prevent slipping, the shaft B may be provided with screw-threads and jamnuts to follow behind each of the worms 0 and d.
- the hub of pulley C and the collarX are kept closely in contact with the bearings a a to prevent end motion of the shaft B.
- tapering worms 0 and d made separate and attached to the same driving-shaft, and provided with suitable means of adjustment, in combination with the worm-gear A, substantially as shown, and for the purpose herein described.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Transmission Devices (AREA)
Description
(No Model.)
S. OVERTON 8v HWELLS.
WORM GEAR MACHINERY.
Patented July 11 N. PETERS, Pbolo-Lilhognpmr. Wnhnn'lon. D. C.
' UNITED STATES PATENT OFFICE.
SAMUEL OVERTON AND EDWARD WELLS, OF CHICAGO, ILLINOIS.
WORM-GEAR-MACHINERY.
SPECIFICATION forming part of Letters Patent No. 260,892, dated July'll, 1882. f
Application filed August 13, 1881. (N0 model.)
To all whom it may concern Be it known that we, SAMUEL OVERTON and EDWARD WELLS, of Chicago, in the county of Cook and State of Illinois, have invented a new and valuable Improvement in Worm-Gear Machinery; and we do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being bad to the annexed drawing, making a part of this specification, and to the letters and figures of reference marked thereon.
The sole figure in the drawing represents a front elevation of our device.
The object of our invention is to provide-a suitable means of taking up lost motion in worm-wheel gearing, such as is generally used in elevator and hoisting machinery; and it consists in making the worm in two separate castingsor pieces,andprovidingsuitablemeans of adjustment, as hereinafter more fully described.
A in the drawing represents the worm-gear which rotates on axle b.
a a are bearings which support shaft B, on which the two tapering or conical worms 0 and d are fastened with set-screws e and f.
0 represents a pulley, which is intended to be driven by a belt.
In machinery of this kind where it is intended to reverse it is found that after the worm becomes much worn the shock is so great as to not only damage certain parts of the machinery, but in some cases (passenger elevators, for instance) becomes very disagreeable. To obviate this we make two separate worms, which are located a sufficient distance from each other to allow of adjustment as the teeth of the wheel and threads of the worms become worn so as to cause lost motion, or what istermed in toothed gearing backlash. We loosen one of the set-screws and. setup the worm by slightly turning or moving it toward the opposite worm until there is no lost motion between the teeth of wheel and the worms. The set-screw may then be tightened, and the machine will run smoothly. It will be seen that the adjustment may be made by setting up either or both of the worms,if itis desirable to do so; and to prevent slipping, the shaft B may be provided with screw-threads and jamnuts to follow behind each of the worms 0 and d. The hub of pulley C and the collarX are kept closely in contact with the bearings a a to prevent end motion of the shaft B.
Having thus described ourinvention, what we claim, and desire to secure by Letters'Patent, is-
The tapering worms 0 and d, made separate and attached to the same driving-shaft, and provided with suitable means of adjustment, in combination with the worm-gear A, substantially as shown, and for the purpose herein described.
In testimony that we claim the above we have hereunto subscribed our names in the presence of two witnesses.
SAMUEL ()VERTON. EDWARD WELLS.
Witnesses:
ISAAC J. FRANKLIN, IVIATHEW MURPHY.
Publications (1)
Publication Number | Publication Date |
---|---|
US260892A true US260892A (en) | 1882-07-11 |
Family
ID=2330170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US260892D Expired - Lifetime US260892A (en) | Worm-gear machinery |
Country Status (1)
Country | Link |
---|---|
US (1) | US260892A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2982825A (en) * | 1957-02-21 | 1961-05-02 | Nat Pneumatic Co Inc | Ringing machine with adjustable tapered worm for eliminating backlash |
-
0
- US US260892D patent/US260892A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2982825A (en) * | 1957-02-21 | 1961-05-02 | Nat Pneumatic Co Inc | Ringing machine with adjustable tapered worm for eliminating backlash |
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