US144350A - Improvement in elevators for buildings - Google Patents
Improvement in elevators for buildings Download PDFInfo
- Publication number
- US144350A US144350A US144350DA US144350A US 144350 A US144350 A US 144350A US 144350D A US144350D A US 144350DA US 144350 A US144350 A US 144350A
- Authority
- US
- United States
- Prior art keywords
- car
- elevators
- buildings
- pawls
- improvement
- 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
- 238000010276 construction Methods 0.000 description 4
- 241000303947 Alyssum minus Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 239000002965 rope Substances 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
- B66B5/26—Positively-acting devices, e.g. latches, knives
Definitions
- A represents the platform or car, which is elevated or lowered by means of the rope b, which is to be connected to or with mechanism of any suitable or convenient construction for the purpose of operation.
- C G At opposite sides of the car A are vertical duplex cant grooves C G, for the purpose of opening and closing the traps; but, not being a part of my invention, require no further description.
- G G represent vertical standards, having teeth or racks ad, and arranged on opposite sides of the car or platform, which is provided on its corresponding sides with grooves, in which the rack rests, thus forming a guide to prevent any lateral movement of the car.
- h h represent safetypawls, situated upon the 1111- der side of the car, and engage with the teeth of the rack, and thereby support the car against descent, excepting when the pawls are thrown out of the rack by means of the eccentric leyer i acting against the cross-head j, to raise the connecting-rods k k, which areattached to the pawls.
- the pawls are held firmly in the rack, by means of the springs n a, when power is not applied to the lever i to release them.
- the spring-pawls h h, rods 7c 7c, cross-heads j, and eccentric lever i attached to the car, in. combination with the racks G a, arranged so that the operator may govern the downward movement of the car at any point by the lever, all arranged to operate as and for the purpose specified.
Description
a. minus. Elevators for Buildings, 610. 144,350.
Patented Nov. 4, 1873.
UNITED STATEs PATENT FFICE.
GAORG MULLAR, on NEW YORK, N. Y.
IMPROVEMENT IN ELEVATORS FOR BUILDINGS, &c.
Specification forming part of Letters Patent No. 144,350, dated November 4, 1873; application filed March 17, 1873.
To all whom it may concern:
Be it known that I, GAORG Mt' LLAR, of the city, county, and State of New York, have made certain new and useful Improvements in Elevators for Buildings, 850., which are simple in construction, and effective and efficient in operation, and durable in use, having for its object to improve the device for stopping the car at any desired point, and to hold the car in case of accident and it consists in the use of an eccentric lever in combination with pawls,-rods, and racks, whereby the desired result is accomplished, as hereinafter more fully described; and I do hereby declare that the following is a full, clear, and exact de' scription thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, with letters of reference marked thereon, forming a part of this specification, in which the figure is an elevation, being partly in detail section, of a device embodying my invention.
A represents the platform or car, which is elevated or lowered by means of the rope b, which is to be connected to or with mechanism of any suitable or convenient construction for the purpose of operation. At opposite sides of the car A are vertical duplex cant grooves C G, for the purpose of opening and closing the traps; but, not being a part of my invention, require no further description. G G represent vertical standards, having teeth or racks ad, and arranged on opposite sides of the car or platform, which is provided on its corresponding sides with grooves, in which the rack rests, thus forming a guide to prevent any lateral movement of the car. h h represent safetypawls, situated upon the 1111- der side of the car, and engage with the teeth of the rack, and thereby support the car against descent, excepting when the pawls are thrown out of the rack by means of the eccentric leyer i acting against the cross-head j, to raise the connecting-rods k k, which areattached to the pawls. The pawls are held firmly in the rack, by means of the springs n a, when power is not applied to the lever i to release them. Under ordinary circumstances, the 'pawls remain orv are held disengaged; but, in case of an accident to the hoisting mechanism, or for other cause, it is desired to prevent the descent of the car, or to support it at any desired point, a partial turn of the eccentric lever 13 releases the pawls, and they are thrown to engage with the racks by means of the springs Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-
The spring-pawls h h, rods 7c 7c, cross-heads j, and eccentric lever i, attached to the car, in. combination with the racks G a, arranged so that the operator may govern the downward movement of the car at any point by the lever, all arranged to operate as and for the purpose specified.
' GAORG MULLAR.
WVitnesses ARTHUR NEILL, ABRAHAM LEVY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US144350A true US144350A (en) | 1873-11-04 |
Family
ID=2213763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US144350D Expired - Lifetime US144350A (en) | Improvement in elevators for buildings |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US144350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050144720A1 (en) * | 2004-01-06 | 2005-07-07 | Stephan Poulin | Side rail, hospital bed including the same, method of operating associated thereto and kit for assembling the side rail |
-
0
- US US144350D patent/US144350A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050144720A1 (en) * | 2004-01-06 | 2005-07-07 | Stephan Poulin | Side rail, hospital bed including the same, method of operating associated thereto and kit for assembling the side rail |
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