US220144A - Improvement in hoisting-pulley apparatus - Google Patents
Improvement in hoisting-pulley apparatus Download PDFInfo
- Publication number
- US220144A US220144A US220144DA US220144A US 220144 A US220144 A US 220144A US 220144D A US220144D A US 220144DA US 220144 A US220144 A US 220144A
- Authority
- US
- United States
- Prior art keywords
- wheel
- chain
- hoisting
- improvement
- pulley apparatus
- 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
- 239000002965 rope Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 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
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
-
- 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
- Y10T74/19647—Parallel axes or shafts
- Y10T74/19651—External type
Definitions
- My object in the present improvement is to provide a lifting apparatus for the more convenient handling of light loads, such as bales and packages in stores, warehouses, and other places; and the invention consists in the particular features hereinafter described, and specifically embraced in the claim.
- Figure 1 is a side elevation of the machine.
- Fig. 2 is a section of the same, taken on y 3 of Fig. 1.
- Fig. 3 is one side of the frame, showing the connection of the brake-lever.
- a A in the drawings are side frames of wrought-iron or other suitable material, by which all parts of the machine are properly supported.
- B is a steel or other suitable casting, combining three members in one, its center part being a gear or cog wheel, and on either side of said gear-wheel, and cast solid with the same, are two lift-chain wheels.
- 0 is a hand chain-wheel, having a smooth flange or projection on one side, to be acted upon by a suitable brake, as hereinafter described.
- f is an endless hand-chain, passing over the wheel 0 in a groove, having projections therein to engage the links of the chain.
- g is a brake-lever, pivoted to the extended arm of side frame A, as shown in Fig. 3, and having a pin, t, for attaching the brake-strap i.
- h is a friction-flange, cast on the side of the hand chain-wheel c, to be acted upon by the brake, as hereinafter described.
- 1' is a metallic brake, being attached to one end of the arm of side frame A, and carried over the friction-flange of the chain-wheel c, and having its opposite end attached to the pin in the lever g, the spring of the strapi being sufficient to raise itself from the wheel when not in use.
- the gear and lift wheels B rotate on a fixed axis, and may be provided with a self-oiling arrangement.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Lowering Means (AREA)
Description
E. HARRINGTON. Hoisting-Pulley Apparatus.
No. 220,144. Patented Sept. 30,1879.
witnesses. 3mm".
siaosin $W MBJTWgYou- UNITED STATES PATENT OEEIcE.
EDWIN -HARRINGTON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO EDWIN HARRINGTON & SON, OF SAME PLACE.
IMPROVEMENT IN HOlSTlNG-PULLEY APPARATUS.
Specification forming part of Letters Patent No. 220,144, dated September 530, 1879; application filed May 2, 1879.
To all whom it may concern.-
Be it known that I, EDWIN HARRINGTON, of Philadelphia, county of Philadelphia and State of Pennsylvania, have invented a new and useful Improven1ent in Hoisting-Pulley Apparatus; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to .the accompanying drawings, forming part of this specification.
My object in the present improvement is to provide a lifting apparatus for the more convenient handling of light loads, such as bales and packages in stores, warehouses, and other places; and the invention consists in the particular features hereinafter described, and specifically embraced in the claim.
In the drawings, Figure 1 is a side elevation of the machine. Fig. 2 is a section of the same, taken on y 3 of Fig. 1. Fig. 3 is one side of the frame, showing the connection of the brake-lever.
A A in the drawings are side frames of wrought-iron or other suitable material, by which all parts of the machine are properly supported.
B is a steel or other suitable casting, combining three members in one, its center part being a gear or cog wheel, and on either side of said gear-wheel, and cast solid with the same, are two lift-chain wheels.
0 is a hand chain-wheel, having a smooth flange or projection on one side, to be acted upon by a suitable brake, as hereinafter described.
, at one or both ends, and passing over the lift wheels B, and engaging with the same by means of interlocking teeth in the usual way.
f is an endless hand-chain, passing over the wheel 0 in a groove, having projections therein to engage the links of the chain.
g is a brake-lever, pivoted to the extended arm of side frame A, as shown in Fig. 3, and having a pin, t, for attaching the brake-strap i.
h is a friction-flange, cast on the side of the hand chain-wheel c, to be acted upon by the brake, as hereinafter described.
1' is a metallic brake, being attached to one end of the arm of side frame A, and carried over the friction-flange of the chain-wheel c, and having its opposite end attached to the pin in the lever g, the spring of the strapi being sufficient to raise itself from the wheel when not in use.
is is a rope or line attached to the end of brakelever g, for the purpose of bringing down the brake to act on the wheel 0, thereby holding the load at rest or controlling the same when being lowered down. Or one of the lift-wheels may be left off and a single chain used, and thus narrow up the machine, though, as a matter of greater safety, I prefer the double lift-chain.
The gear and lift wheels B rotate on a fixed axis, and may be provided with a self-oiling arrangement.
By the foregoing references and drawings the operation of this machine can be easily understood, being suspended by the upper hook, it, to any suitable support, and the weight or load to be raised attached to the lower hook m. The wheel 0 being rotated by means of the endless hand-chain f through the gearing cl and B, the lift-wheels will be rotated with a power corresponding to the proportion of the leverage of the gearing and diameter of chain-wheels combined.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-
The combination of rope is, lever g, and
brake-strap 't' with the friction-flange h, hand chain-wheel c, pinion d, and gear-wheel B, the
whole being arranged as and for the purpose specified.
EDWIN HARRINGTON.
Witnesses:
H. KIRK SMITH, A. J. ANDERSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US220144A true US220144A (en) | 1879-09-30 |
Family
ID=2289545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US220144D Expired - Lifetime US220144A (en) | Improvement in hoisting-pulley apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US220144A (en) |
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0
- US US220144D patent/US220144A/en not_active Expired - Lifetime
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