US216568A - Improvement in dumb-waiters - Google Patents
Improvement in dumb-waiters Download PDFInfo
- Publication number
- US216568A US216568A US216568DA US216568A US 216568 A US216568 A US 216568A US 216568D A US216568D A US 216568DA US 216568 A US216568 A US 216568A
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- Prior art keywords
- dumb
- pulley
- waiters
- pulleys
- improvement
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- NRUQNUIWEUZVLI-UHFFFAOYSA-O diethanolammonium nitrate Chemical compound [O-][N+]([O-])=O.OCC[NH2+]CCO NRUQNUIWEUZVLI-UHFFFAOYSA-O 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/0415—Driving gear ; Details thereof, e.g. seals actuated manually, e.g. additional safety system
Definitions
- Nv PETERS PHoru LITHOGRAPMEK
- WASHXNGTON D Cv UNITED STATES PATENT OFFICE.
- the counterweight usually employed in connection with dumb-waiters is dispensed with.
- the counterbalancing of the platform and load is accomplished by a system of differential pulleys.
- Figure l is a front elevation of my improvement.
- Fig. 2 is a side elevation of the same.
- Fig. 3 is afront elevation of. the mode of adjusting the rope by means of a pawl and rack.
- Fig. 4 is afront elevation of the mode of adjustment by means of a weight.
- a and A are differential pulleys of the same sizes, one being permanent, and the other adjustable by means of a screw and nut, the shank sliding in a square socket, thus permitting the length of the rope to be adjusted at pleasure.
- this adjustment is marked G, and shown as part of differential pulley A.
- b b b b are simply guide-pulleys for the rope E.
- 00 are also pulleys for the rope I E, and are permanently attached to the platform D.
- the rope E is an endless one, and runs around the pulleys as follows, viz: Oommencin g at a point, F, the ropeE runs over the guide-pulley b from the right; over the smaller part of the difierential pulley A, also from the right; around the guide-pulley c from the left, and then over the larger part of the differential pulley A from the right; then over the guidepulleys b and b from the right, and over the larger part of the differential pulley A from the left; around the guide-pulley c from the right; then over the smaller part of the differential pulley A from the left, and then over the guide-pulley b from the left to F, the point of beginning.
- G is the lower portion of the adjustable differential pulley A, which can be either in the shape of a screw and nut, as Gin Fig. 1, arack and pawl, as H in Fig. 3, or a weight, as I in Fig. 4, neither of which modes I claim as my invent-ion.
- the system of difl'erential pulleys one of them being adjustable, in combination with the platform of a dumb-waiter connected with said pulleys by an endless rope or chain, substantially as shown and described.
Description
W. F. HOLSKE. Dumb-Waiter.
Patented June I7, 1879.
Nv PETERS, PHoru LITHOGRAPMEK, WASHXNGTON, D Cv UNITED STATES PATENT OFFICE.
WILLIAM F. HOLSKE, OF BROOKLYN, ASSIGNOR TO B. CLARENCE DORSE'IT, OF NEW YORK, N. Y.
IMPROVEMENTIN DUMB-WAIT ERS.
Specification forming part of Letters Patent No. 216,568, dated June 17, 1879 application filed January 15, 1879.
To all whom it may concern:
Be it known that I, WILLIAM F. HOLSKE, of the city of Brooklyn. county of Kings, and State of New York, have invented a new and useful Improvement in Dumb -Waiters, of which the following is a specification.
By this invention the counterweight usually employed in connection with dumb-waiters is dispensed with. The counterbalancing of the platform and load is accomplished by a system of differential pulleys.
Referring to the drawings, Figure l is a front elevation of my improvement. Fig. 2 is a side elevation of the same. Fig. 3 is afront elevation of. the mode of adjusting the rope by means of a pawl and rack. Fig. 4 is afront elevation of the mode of adjustment by means of a weight.
Similar letters in the various figures refer to the same parts.
A and A are differential pulleys of the same sizes, one being permanent, and the other adjustable by means of a screw and nut, the shank sliding in a square socket, thus permitting the length of the rope to be adjusted at pleasure. In the drawings this adjustment is marked G, and shown as part of differential pulley A. b b b b are simply guide-pulleys for the rope E. 00 are also pulleys for the rope I E, and are permanently attached to the platform D. The rope E is an endless one, and runs around the pulleys as follows, viz: Oommencin g at a point, F, the ropeE runs over the guide-pulley b from the right; over the smaller part of the difierential pulley A, also from the right; around the guide-pulley c from the left, and then over the larger part of the differential pulley A from the right; then over the guidepulleys b and b from the right, and over the larger part of the differential pulley A from the left; around the guide-pulley c from the right; then over the smaller part of the differential pulley A from the left, and then over the guide-pulley b from the left to F, the point of beginning. G is the lower portion of the adjustable differential pulley A, which can be either in the shape of a screw and nut, as Gin Fig. 1, arack and pawl, as H in Fig. 3, or a weight, as I in Fig. 4, neither of which modes I claim as my invent-ion.
I do not confine myself in the application of the system of (liiferential pulleys to dumbwaiters to the exact arrangement shown in the accompanying drawings.
What I claim as my invention, and desire to secure by Letters Patent, is-
The system of difl'erential pulleys, one of them being adjustable, in combination with the platform of a dumb-waiter connected with said pulleys by an endless rope or chain, substantially as shown and described.
WM. F. HOLSKE.
Witnesses GEORGE HOFFMAN, FREDERIC M. DEAN.
Publications (1)
Publication Number | Publication Date |
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US216568A true US216568A (en) | 1879-06-17 |
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US216568D Expired - Lifetime US216568A (en) | Improvement in dumb-waiters |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2835345A (en) * | 1954-09-14 | 1958-05-20 | Montgomery Elevator | Elevator |
US4671013A (en) * | 1985-10-22 | 1987-06-09 | Noran | Cab window assembly |
WO2004041699A1 (en) * | 2002-11-04 | 2004-05-21 | Kone Corporation | Elevator cable tensioning device |
WO2004041700A1 (en) * | 2002-11-04 | 2004-05-21 | Kone Corporation | Tractor sheave elevator without counterweight |
US20050236232A1 (en) * | 2002-11-04 | 2005-10-27 | Jorma Mustalahti | Elevator |
US20060231346A1 (en) * | 2003-11-24 | 2006-10-19 | Kone Corporation | Elevator system |
US20060243530A1 (en) * | 2003-11-17 | 2006-11-02 | Esko Aulanko | Method for installing an elevator |
US20060243531A1 (en) * | 2003-11-17 | 2006-11-02 | Osmo Bjorni | Method for installing an elevator, and elevator |
US20060289246A1 (en) * | 2004-03-26 | 2006-12-28 | Esko Aulanko | Elevator |
US20070012524A1 (en) * | 2004-03-22 | 2007-01-18 | Petteri Valjus | Elevator |
US20070017750A1 (en) * | 2004-03-18 | 2007-01-25 | Jorma Mustalahti | Method for installing an elevator, and elevator delivery assembly |
WO2012049019A1 (en) * | 2010-10-13 | 2012-04-19 | Kone Corporation | System for driving an elevator without counterweight |
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0
- US US216568D patent/US216568A/en not_active Expired - Lifetime
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2835345A (en) * | 1954-09-14 | 1958-05-20 | Montgomery Elevator | Elevator |
US4671013A (en) * | 1985-10-22 | 1987-06-09 | Noran | Cab window assembly |
US7802658B2 (en) * | 2002-11-04 | 2010-09-28 | Kone Corporation | Elevator cable tensioning device |
WO2004041699A1 (en) * | 2002-11-04 | 2004-05-21 | Kone Corporation | Elevator cable tensioning device |
WO2004041701A1 (en) * | 2002-11-04 | 2004-05-21 | Kone Corporation | Traction sheave elevator without counterweight |
US20050217944A1 (en) * | 2002-11-04 | 2005-10-06 | Esko Aulanko | Elevator cable tensioning device |
US20050224301A1 (en) * | 2002-11-04 | 2005-10-13 | Esko Aulanko | Elevator |
US20050236232A1 (en) * | 2002-11-04 | 2005-10-27 | Jorma Mustalahti | Elevator |
AU2003276290B2 (en) * | 2002-11-04 | 2009-03-26 | Kone Corporation | Traction sheave elevator without counterweight |
WO2004041700A1 (en) * | 2002-11-04 | 2004-05-21 | Kone Corporation | Tractor sheave elevator without counterweight |
US7484596B2 (en) * | 2002-11-04 | 2009-02-03 | Kone Corporation | Elevator |
US8141684B2 (en) * | 2003-11-17 | 2012-03-27 | Kone Corporation | Method for installing an elevator, and elevator |
US20060243530A1 (en) * | 2003-11-17 | 2006-11-02 | Esko Aulanko | Method for installing an elevator |
US20060243531A1 (en) * | 2003-11-17 | 2006-11-02 | Osmo Bjorni | Method for installing an elevator, and elevator |
US8118138B2 (en) * | 2003-11-17 | 2012-02-21 | Kone Corporation | Method for installing an elevator |
US8602174B2 (en) * | 2003-11-24 | 2013-12-10 | Kone Corporation | Apparatus and method for installing elevator ropes |
US20060231346A1 (en) * | 2003-11-24 | 2006-10-19 | Kone Corporation | Elevator system |
US7562744B2 (en) * | 2004-03-18 | 2009-07-21 | Kone Corporation | Method for installing an elevator, and elevator delivery assembly |
US20070017750A1 (en) * | 2004-03-18 | 2007-01-25 | Jorma Mustalahti | Method for installing an elevator, and elevator delivery assembly |
US8235179B2 (en) * | 2004-03-22 | 2012-08-07 | Kone Corporation | Elevator without a counterweight |
US20070012524A1 (en) * | 2004-03-22 | 2007-01-18 | Petteri Valjus | Elevator |
US7650972B2 (en) * | 2004-03-26 | 2010-01-26 | Kone Corporation | Elevator |
US20060289246A1 (en) * | 2004-03-26 | 2006-12-28 | Esko Aulanko | Elevator |
WO2012049019A1 (en) * | 2010-10-13 | 2012-04-19 | Kone Corporation | System for driving an elevator without counterweight |
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