US1707099A - Catching device for the cages of hoistes, lifts, and the like - Google Patents
Catching device for the cages of hoistes, lifts, and the like Download PDFInfo
- Publication number
- US1707099A US1707099A US242206A US24220627A US1707099A US 1707099 A US1707099 A US 1707099A US 242206 A US242206 A US 242206A US 24220627 A US24220627 A US 24220627A US 1707099 A US1707099 A US 1707099A
- Authority
- US
- United States
- Prior art keywords
- rollers
- cages
- shafts
- lifts
- catching device
- 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
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/22—Subtractive cinematographic processes; Materials therefor; Preparing or processing such materials
-
- 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
- B66B5/22—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 linearly-movable wedges
Definitions
- the invention relates to a catching device for the cages of hoists, lifts and the like.
- Devices of this class are already known, in vwhich, when a break in the cable occurs, a catching rollers are brought to intervene with the guide ,beams on which the cage is guided in an angular direction in guides, and thereafter the intervention of the catching rollers is increased.
- Fig. 1 is a side elevation of the catching device
- Fig. 2 a plan view of diverse parts of the device over the middle of the cage
- Fig. 8 a cross section at the line A-B of Fig. l.
- the cage of the lift, or the like is supported in the usual manner.
- the kingbar a, the connecting links c and the levers d are forced downward by the expanding action of the spiral spring b.
- shafts e are caused to rotate.
- the lever arms f are keyed firmly to the shafts e and are connected movably to forked lever arms g. In the normal working position the forked arms g support the shafts h1 of the rollers h, these being fiuted or milled for wooden guide beams and notched for iron beams.
- the rollers h on their shafts h1 lie perfectly free in the guiding channels z' of guiding members m, whereby the shafts of the rollers are compelled to roll and run'up in especiallycurved grooves, which merge into straight grooves that are extended upwardly in an angular direction adjacent to the channels z' in the guiding members, and therefore must roll in a certain braking course when a break occurs in the cable.
- the guiding members m can be adjusted to a desirable position in relation tothe guide beams.
- the upper ends of the guiding channels t' are provided with a short curve, the so-called safety curve 1, by
- the rollers L begin to rotate.
- the bearings of the shafts h1 as a result of the internal force of the descending cage, are caused to roll upwards in the grooves adjacent to the guiding channels z* in the guiding members m, so that the coercive action ofthe lcurved and angular guide grooves forces the rollers h continuously deeper into the guide beams Z, until the internal force of the descending cage has become gradually consumed because of the active resistance, and the cage comes to a standstill.
- a catching device for the cages of hoists, lifts and the like comprising, in combination, an o'pen spiral spring on the kingbar of the hoisting cage, connecting links and levers adapted to rotate shafts and to actuate movable forked lever arms, the said forked arms supporting shafts of vtoothed rollers, and means for adjusting and gradually bringing said rollers to contact with the beams on which the cages are guided, substantially as set forth.
- Acatching device for the cages of hoists, lifts and the like comprising, in combination, ⁇ an open spiral spring on the kingbar of the hoisting cage, connecting 'links and when a break in the cable occurs, the said levers adapted to rotate shafts and to actuguiding members being adjustable by means l0 ate movable forked lever arms, the said forked of screws in their position in relation to the arms supporting shafts of toothed rollers, the 0ruide beams of the cages, substantially and 5 said roller .shafts being guided in curved or the purpose as set forth.
Description
Marchl26, 1929. B. STEIN ET AL CATCHING DEVICE FCR THE CAGES OF HO-ISIS, LIFTS, AND THE LIKE File Dec, 25
Patented Mar. 26,1929.
UNITED STATES y 1,701,099 PATENT OFFICE.
BRUNO STEIN AND OTTO MNZNER, OF OBERGRUNA, GERMANY.
ATCHING DEVICE FOR THE CAGES OF HOISTS, LIFTS, AND THE LIKE.
Application led December 23, 1927, Serial No. 242,206, and in Germany April 22, 1925.
The invention relates to a catching device for the cages of hoists, lifts and the like. Devices of this class are already known, in vwhich, when a break in the cable occurs, a catching rollers are brought to intervene with the guide ,beams on which the cage is guided in an angular direction in guides, and thereafter the intervention of the catching rollers is increased.
The devices of this class which are known, have the disadvantage, that they can be used only for one certain case and cannot be made to suit different working conditions. According to our invention this disadvantage is l overcome thereby', that the guiding channels for the catching rollers are arranged so'that they can be adjusted, to suit the load and the hoisting speed, in their relation to the guide beams.
ln the accompanying drawing the invention is illustrated in one form by way of exarnple, in which Fig. 1 is a side elevation of the catching device, Fig. 2, a plan view of diverse parts of the device over the middle of the cage, and Fig. 8 a cross section at the line A-B of Fig. l.
By means of the spiral spring l) which is provided on the kingbar a," the cage of the lift, or the like, is supported in the usual manner. When abreak in the cable occurs, the kingbar a, the connecting links c and the levers d are forced downward by the expanding action of the spiral spring b. Thereby shafts e are caused to rotate. The lever arms f are keyed firmly to the shafts e and are connected movably to forked lever arms g. In the normal working position the forked arms g support the shafts h1 of the rollers h, these being fiuted or milled for wooden guide beams and notched for iron beams. 'The rollers h on their shafts h1 lie perfectly free in the guiding channels z' of guiding members m, whereby the shafts of the rollers are compelled to roll and run'up in especiallycurved grooves, which merge into straight grooves that are extended upwardly in an angular direction adjacent to the channels z' in the guiding members, and therefore must roll in a certain braking course when a break occurs in the cable. By means of the adjusting screws lc, Fig. l, the guiding members m can be adjusted to a desirable position in relation tothe guide beams. The upper ends of the guiding channels t' are provided with a short curve, the so-called safety curve 1, by
means of which it is made impossible for the rollers to run out of the guiding channels.
When a break in the cable causes the shafts c to be rotated under the action of the spiral spring Z9, by means of the connecting links c and the levers d, the lever arms f, which are firmly located on the shafts e are Vmoved upwards, and simultaneously therewith the4 forked arms g are also moved in the same direction. Thereby the forked arms g, which raise the bearings of the roller shafts h1, bring the toothed rollers to contact with the guide beams l. In this state the spiral spring b has become expanded to but one half of its actual working expansion, and consequently.- the remaining active force in the spring will bring the rollers to intervene with the guide beams Z with an absolute certainty. As soon as this intervention. has become suiciently strong, the rollers L begin to rotate. Thereby the bearings of the shafts h1, as a result of the internal force of the descending cage, are caused to roll upwards in the grooves adjacent to the guiding channels z* in the guiding members m, so that the coercive action ofthe lcurved and angular guide grooves forces the rollers h continuously deeper into the guide beams Z, until the internal force of the descending cage has become gradually consumed because of the active resistance, and the cage comes to a standstill.
Thereby, that the shafts k1 are firmly lo'- cated in the rollers t and must cover a certain distance' in the curved and angular grooves in the guiding members, a longer braking course is attained. The adjustment of the braking course is attained by means. of the screws lc, which are to be adjusted so as to bring the guiding channels either closer to, or farther away from the guiding beams l.
I claim:
1. A catching device for the cages of hoists, lifts and the like, comprising, in combination, an o'pen spiral spring on the kingbar of the hoisting cage, connecting links and levers adapted to rotate shafts and to actuate movable forked lever arms, the said forked arms supporting shafts of vtoothed rollers, and means for adjusting and gradually bringing said rollers to contact with the beams on which the cages are guided, substantially as set forth.
2. Acatching device for the cages of hoists, lifts and the like, comprising, in combination,` an open spiral spring on the kingbar of the hoisting cage, connecting 'links and when a break in the cable occurs, the said levers adapted to rotate shafts and to actuguiding members being adjustable by means l0 ate movable forked lever arms, the said forked of screws in their position in relation to the arms supporting shafts of toothed rollers, the 0ruide beams of the cages, substantially and 5 said roller .shafts being guided in curved or the purpose as set forth.
grooves which mer 'e into straight grooves i v, 1 A provided in adjusta le guiding members, so BRUN 0 LIN- that the rollers are compelled to run upward OTTO MUN ZNER.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1707099X | 1925-04-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1707099A true US1707099A (en) | 1929-03-26 |
Family
ID=7740089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US242206A Expired - Lifetime US1707099A (en) | 1925-04-22 | 1927-12-23 | Catching device for the cages of hoistes, lifts, and the like |
Country Status (1)
Country | Link |
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US (1) | US1707099A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2897920A (en) * | 1958-01-28 | 1959-08-04 | Dresser Ind | Emergency brake for elevator cars |
US3273671A (en) * | 1966-09-20 | Load transfer device and braking arrangement | ||
EP0683132A2 (en) * | 1994-04-18 | 1995-11-22 | Genie Industries | A braking system for multi-stage lifts |
US20030010579A1 (en) * | 2001-07-13 | 2003-01-16 | Kostigian John V. | Safety brake assembly |
US20050016797A1 (en) * | 2003-07-21 | 2005-01-27 | Reynolds Steven P. | Elevator landing door broken chain safety device |
US20140224593A1 (en) * | 2013-02-08 | 2014-08-14 | Carlos M. Ascua | Vacuum Brake |
-
1927
- 1927-12-23 US US242206A patent/US1707099A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3273671A (en) * | 1966-09-20 | Load transfer device and braking arrangement | ||
US2897920A (en) * | 1958-01-28 | 1959-08-04 | Dresser Ind | Emergency brake for elevator cars |
EP0683132A2 (en) * | 1994-04-18 | 1995-11-22 | Genie Industries | A braking system for multi-stage lifts |
EP0683132A3 (en) * | 1994-04-18 | 1995-12-20 | Genie Ind | |
US20030010579A1 (en) * | 2001-07-13 | 2003-01-16 | Kostigian John V. | Safety brake assembly |
US6820725B2 (en) * | 2001-07-13 | 2004-11-23 | Galt Display Rack Company Limited | Safety brake assembly |
US20050016797A1 (en) * | 2003-07-21 | 2005-01-27 | Reynolds Steven P. | Elevator landing door broken chain safety device |
US7097003B2 (en) * | 2003-07-21 | 2006-08-29 | The Peelle Company Ltd. | Elevator landing door broken chain safety device |
US20140224593A1 (en) * | 2013-02-08 | 2014-08-14 | Carlos M. Ascua | Vacuum Brake |
US9162848B2 (en) * | 2013-02-08 | 2015-10-20 | Carlos M. Ascua | Vacuum brake |
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