US148802A - Improvement in elevators - Google Patents
Improvement in elevators Download PDFInfo
- Publication number
- US148802A US148802A US148802DA US148802A US 148802 A US148802 A US 148802A US 148802D A US148802D A US 148802DA US 148802 A US148802 A US 148802A
- Authority
- US
- United States
- Prior art keywords
- bar
- lifting
- frame
- cage
- bars
- 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
- 210000002832 Shoulder Anatomy 0.000 description 10
- 239000002965 rope Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 210000001503 Joints Anatomy 0.000 description 2
- 230000033590 base-excision repair Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/20—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of rotatable eccentrically-mounted members
Description
l. BER N H A R D.
Elevators. y
N0148,802 PatentedMarch 24.1874.
o O o o o o 'rontElez/alow Egg.
.n. :x n
w -v j 4; e E
v i f f t {Ej} f Horizontal, View.
With (was fn ventola' UNITED STATES PATENT FFICE.
JOHN BERNHARD, OF SHENANDOAH, PENNSYLVANIA.
IMP-Rovl-:MENT IN ELEvAToRs.
Specification forming part of Letters Patent No. 148,802, dated March 24, 1874; apl lication filed February 20, 1874.
To all whom it may concern:
Be it known that I, JOHN BERNHARD, of Shenandoah, in the county of Schuylkill and State of Pennsylvania, have invented a new and valuable Improvement in Elevator Safety- Cages 5 and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.
Figure l is a front elevation, showing the working of the lifting-bar a, the spring f, the connecting-bar c, and the arms or cranks cl d. Fig. 2 is a side elevation, showing the working of the bar a., the connecting-bars c c, the toothed eccentric wheels e e, together with the frames b h, and the columns or guides g. Fin'. 3 is a horizontal view, showing the lifting-bar u, the connecting bars c c, the arms or cranks d d, the pivots or joints at k and d, the shafts or spindles t' i, the columns or guides g g, the toothed eccentric wheels e e, and the frame h in part or sectional view. Fig. 4 is a view showing a portion of the working parts in a part of the frame b and 7L, and a view of the lifting-bar a.
a is a lifting-bar, of iron or other metal, to which is to be attached the rope or chain which is to hoist or lower the cage. b is a portion of the frame-work of the cage, and, in connection with h, forms the frame or body of the cage. c c are connecting-bars, which connect the lifting-bar a with the arms or cranks d d, and which also connect the toothed eccentric wheels e e with each other. d d are arms or cranks fastened to the shafts or spindles c' c'. c e are'toothed eccentric wheels fastened to the shafts or spindles i vl, and operated by the connecting-bars c c. f is a spring fastened by the sleeve Z, and working against the frame b. g g are columns or guides, of wood or other suitable material, against which the toothed eccentric wheels work. h h is a part of the frame, and, with b b, forms the frame or body of the cage. i are shafts or spindles, working in bearings in the frame 7L h, and to which the toothed eccentric wheels c e and connectingbars c c are fastened. 7c is a shoulder and pivot or joint connecting the lifting-bar a to the connecting-bars c c. l is a movable sleeve, securing the spring j' to the lifting-bar a by means of a key or pin, and also forming a shoulder.
/Vhen a hoisting power is applied by means of a rope or chain, or any other means, to the lifting-bar a, the lifting-bar a rises as far as the shoulders, (shown at the points 7c and 1,) when the lifting strain comes on the frame or cage proper b and h.
Should the rope or chain break by any accident or in any way whatever, the spring f will draw down the lifting-bar a', and, through the means of the connecting-bars c c, as shown in Fig. 2, will' force the toothed eccentric wheels e' e in and against the columns or guides g g, as shown in the same figure, thereby holding and fastening the cage in a firm and stationary position, and preventing it from falling or sliding down. As soon as the rope or chain draws the lifting-bar a up, the toothed eccentric wheels become released through the working of the connecting-bars c c, which are connected by pivoted or jointed connections with the lifting-bar a.
So long as this rope or chain remains unbroken, the cage will work up and down with perfect ease and freedom; but if it breaks, then the cage will stop instantaneously, as before described.
Having thus described my invention, I desire to claim- The lifting-bar a, with the connecting-bars c c, the arms or cranks d d, the toothed eccentric wheels e e, the spring f, the columns or guides g g, the shafts or spindles it', the shoulder k, the movable sleeve and shoulder Z, and the frame b and h, all combined substantially as and for the purpose hereinbefore set forth.
JOHN BERNHARD. Witnesses:
J. J. MURPHY, HoRAcE B. McCooL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US148802A true US148802A (en) | 1874-03-24 |
Family
ID=2218215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US148802D Expired - Lifetime US148802A (en) | Improvement in elevators |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US148802A (en) |
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0
- US US148802D patent/US148802A/en not_active Expired - Lifetime
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