US1324451A - John hoster - Google Patents
John hoster Download PDFInfo
- Publication number
- US1324451A US1324451A US1324451DA US1324451A US 1324451 A US1324451 A US 1324451A US 1324451D A US1324451D A US 1324451DA US 1324451 A US1324451 A US 1324451A
- Authority
- US
- United States
- Prior art keywords
- spring
- shaft
- post
- cage
- shafts
- 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
- 238000009825 accumulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002965 rope Substances 0.000 description 4
- 230000002459 sustained Effects 0.000 description 4
- 210000003746 Feathers Anatomy 0.000 description 2
- 241000416915 Roa Species 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000001808 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 230000000452 restraining Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Definitions
- WITNESSES UNITED STATES PATEN T OFFICE WITNESSES UNITED STATES PATEN T OFFICE.
- Elevator-Cars and Mine-Cages of which improvements the following is a specification.
- My invention relates to improvements in safety-stop devices for passengers 'and freight elevators and mine cages.
- the objects are simplicity of structure and effectiveness- Devices of this sort have been proposed to be operated, some of them by springs and some of them by counterweights.
- the objection to the springs has ordinarily been that they are liable to become clogged or frozen, and so be inefi'ective, and an objection to counterweights has been the multiplicity of cables in the shaft.
- I have 111- vented, and shall here describe, a form of spring which may be properly incased and so protected against clogglng and aga nst accumulation of moisture which might, in a cold shaft, make trouble by freezing.
- Figure 1 1s a side elevation of the elevator cage sustained in position in a shaft.
- Fig. 2 is a view of the same cage seen from the point at right angles to that of Fig. 1.
- Fig. 3 1s a view in top plan of the same cage, the stanchlons between which the cage runs being here shown in section.
- Fig. 4 is a view in vertical section, shown in detail and on larger scale, of the coiled spring which is the form of safety operating motor which I prefer to employ.
- the cage, 1 sustained by cable 2 travels between guides 3.
- These guides 3 may serve not only as guides, but also, inasmuch as they extend vertically adjacent the path of the cage, they may serve as posts upon which or in cooperation with which the safety device may act.
- Cooperating with such posts are one or more pairs of post-engaging members borne by the car and in proper time engaging the post to effect emergency stop.
- the cage carries a motor element and carries it in itsentirety. There is no accessory counterweighted.rope to complicate installation.
- This motor element is operatively connected to the post-engaging cams, to bring them in proper time into post-engaging position. 1
- These post-engaging'c'a'ms are in the form shown in the drawings mounted upon the shafts 5, and the motor itself consists, in the form shown, of a coiled spring 6 mounted iipon a shaft 7. Suitable mechanical connections are made be-' tween the shaft 7 and the shafts 5, to cause them to rotate at proper time in response to tension of spring 6, and in opposite direction. This is conveniently effected by the beveled gear connection best shown in the plan view of Fig. 3.
- a control is exercised upon the motor, holding it ineffective during all normal conditions, that is so long as the cage is borne by its sustaining cable.
- This control consists of a tension member connecting the sustaining cable with the spring, and holding the spring under tension. This is conveniently effected by providing arms 8 on shafts 5 and tension members 9 extending between the arms 8 and the coupling to which the rope 2 is secured.
- the gear wheels 10 borne on the shafts 5 may be slidable on feathers 5 to and from engagement with the companion gear wheels on the shaft 7.
- the safety device to have acted and to be sustaining the cage at an intermediate point in its path of movement.
- a new cable being provided and attached, the drawing of the cable taut will effect a swinging of the arms 8 and a release of the engagement between cams f and post 3.
- the beveled gear wheels 10 may be slid along the shafts 5, leaving the shaft 7 to turn independently of the shafts 5.
- the shaft 7 may then be rotated by a suitable means (not shown) until the spring 6 is sufliciently taut. Thereupon the beveled gear wheels 10 may be slid back into engagement with the corresponding beveled gear wheels upon shaft 7.
- the device is then ready for action.
- the motor element consisting of the coiled spring 6 may be borne entirely by the cage, requiring no additional cables and counterweights for its proper functioning, and it may be protected against the ingress of dripping water and the accumulation of clogging substances.
- the safety device may be arranged either at the top or at the bottom of the car, as preferred.
- an elevator safety-stop mechanism the combination with an elevator car and a carsustaining cable of a post extending adjacent the path of said car, a shaft borne by said car and provided with a post-engaging cam, a windable spring motor borne by said car, operative connection between said motor and said shaft including a gear-Wheel feathered to and sliding on its shaft, and a tension member connected to said cable and normally restraining said motor, substantially as described.
Description
J. HOFFEH SAFETY DEVICE FOR ELEVATOR CARSAND MINE CAGES,
APPLICATION FILED APR. h I919.
1,324,451. Patented Dec. 9,1919.
Fll3. 1 FIEZ.
Z 2 w w 4 4 J 5 a 4- *4 8 J" J1- 8 u I I T" a FIE-L5- FIG.4.
WITNESSES UNITED STATES PATEN T OFFICE.
JbI-IN HOFFER, 0F MARIANNA PENNSYLVANIA.
SAFETY niivron roa ELEvaroa-oans AND MINE-CAGES; I
ToaZZ whom it may concern:
Be it known that I, JOHN HOFFER, residing at Marianna, in the county of Washington and State of Pennsylvania, an applicant for United States citizenship, heretofore a subject of the King of Hungary, have invented or discovered certain new and useful Improvements in Safety Devices for,
Elevator-Cars and Mine-Cages, of which improvements the following is a specification.
My invention relates to improvements in safety-stop devices for passengers 'and freight elevators and mine cages. The objects are simplicity of structure and effectiveness- Devices of this sort have been proposed to be operated, some of them by springs and some of them by counterweights. The objection to the springs has ordinarily been that they are liable to become clogged or frozen, and so be inefi'ective, and an objection to counterweights has been the multiplicity of cables in the shaft. I have 111- vented, and shall here describe, a form of spring which may be properly incased and so protected against clogglng and aga nst accumulation of moisture which might, in a cold shaft, make trouble by freezing.
The invention is shown in the accompanying drawings in which Figure 1 1s a side elevation of the elevator cage sustained in position in a shaft. Fig. 2 is a view of the same cage seen from the point at right angles to that of Fig. 1. Fig. 3 1s a view in top plan of the same cage, the stanchlons between which the cage runs being here shown in section. Fig. 4 is a view in vertical section, shown in detail and on larger scale, of the coiled spring which is the form of safety operating motor which I prefer to employ.
The cage, 1 sustained by cable 2 travels between guides 3. These guides 3 may serve not only as guides, but also, inasmuch as they extend vertically adjacent the path of the cage, they may serve as posts upon which or in cooperation with which the safety device may act. Cooperating with such posts are one or more pairs of post-engaging members borne by the car and in proper time engaging the post to effect emergency stop. As shown in the drawings there are two pairs of these post-engaging members in the form of the cams 4 carried upon shafts 5. These shafts arranged as best Specification of Letters Patent.
shown in Figs. 1 and 3, rotate it will be observed in opposite directions, to bring the cams 5 into engagement upon opposite sides of posts 3.
The cage carries a motor element and carries it in itsentirety. There is no accessory counterweighted.rope to complicate installation. This motor element is operatively connected to the post-engaging cams, to bring them in proper time into post-engaging position. 1 These post-engaging'c'a'ms are in the form shown in the drawings mounted upon the shafts 5, and the motor itself consists, in the form shown, of a coiled spring 6 mounted iipon a shaft 7. Suitable mechanical connections are made be-' tween the shaft 7 and the shafts 5, to cause them to rotate at proper time in response to tension of spring 6, and in opposite direction. This is conveniently effected by the beveled gear connection best shown in the plan view of Fig. 3.
A control is exercised upon the motor, holding it ineffective during all normal conditions, that is so long as the cage is borne by its sustaining cable. This control consists of a tension member connecting the sustaining cable with the spring, and holding the spring under tension. This is conveniently effected by providing arms 8 on shafts 5 and tension members 9 extending between the arms 8 and the coupling to which the rope 2 is secured.
Referringto Fig. 1, and to the'post-ens gaging earn 4. on the right, it will be under-.
Patented Dec. 9,- 1919. Application filed April 1, 1919. Serial No. 286,664.
upon the post 3; while at the same time the tension of the member 9 will tend-to hold the spring 6 under compression, and ineffective to turn the shaft 5. (It will be understood that the tension of the spring 6 is small compared with the burden of the weight of the car 1.)
'- It will be manifest that in case the sustaining cable 2 should break, the restraint exercised upon spring 6 will be removed, and the spring 6 uncoiling will rotate the shafts 5 and cause the cams to engage the posts and efiect emergency stop of the car.
To the end that the device may readily be adjusted for service, the gear wheels 10 borne on the shafts 5 may be slidable on feathers 5 to and from engagement with the companion gear wheels on the shaft 7.
Suppose the safety device to have acted and to be sustaining the cage at an intermediate point in its path of movement. A new cable being provided and attached, the drawing of the cable taut will effect a swinging of the arms 8 and a release of the engagement between cams f and post 3. If then the spring 6 is under insufiicient tension, the beveled gear wheels 10 may be slid along the shafts 5, leaving the shaft 7 to turn independently of the shafts 5. The shaft 7 may then be rotated by a suitable means (not shown) until the spring 6 is sufliciently taut. Thereupon the beveled gear wheels 10 may be slid back into engagement with the corresponding beveled gear wheels upon shaft 7. The device is then ready for action.
As was said at the beginning, the motor element consisting of the coiled spring 6 may be borne entirely by the cage, requiring no additional cables and counterweights for its proper functioning, and it may be protected against the ingress of dripping water and the accumulation of clogging substances. The safety device may be arranged either at the top or at the bottom of the car, as preferred.
I claim as my invention:
In an elevator safety-stop mechanism, the combination with an elevator car and a carsustaining cable of a post extending adjacent the path of said car, a shaft borne by said car and provided with a post-engaging cam, a windable spring motor borne by said car, operative connection between said motor and said shaft including a gear-Wheel feathered to and sliding on its shaft, and a tension member connected to said cable and normally restraining said motor, substantially as described.
In testimony whereof I have hereunto set my hand.
JOHN HQFFER.
Witness FRANCIS J. TOMASSON.
Publications (1)
Publication Number | Publication Date |
---|---|
US1324451A true US1324451A (en) | 1919-12-09 |
Family
ID=3391902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1324451D Expired - Lifetime US1324451A (en) | John hoster |
Country Status (1)
Country | Link |
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US (1) | US1324451A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2489140A (en) * | 1946-11-30 | 1949-11-22 | Rotary Lift Company | Elevator guide device |
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0
- US US1324451D patent/US1324451A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2489140A (en) * | 1946-11-30 | 1949-11-22 | Rotary Lift Company | Elevator guide device |
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