USRE11520E - Island - Google Patents

Description

3 Sheets-Sheet 1.

a. A. HARKNESS. ELEVATOR QONTROLLING DEVICE.

' Reissued Jan. 7

. .5 mlww w F l N 9 w H5 F i 3 Sheets-Sheet 2.

0.. A. HARKNESS. ELEVATOR CONTROLLING DEVICE.

No. 11,520. I Reissued Jan. 7 1896.

Ei N. P. a L "Q W rgms- AT'T'Y 3 SheetsSheet 3.

0. A. HARKNESS. ELEVATOR CONTROLLING DEVICE.

TEIR- INVEN fiTTY.

- UNITED STATES/"PATE T OFFICE.

CHARLES A. nAnKnEss, or PROVIDENCE, anon-E 15mm;

ELEVATOR-CONTROLLING DEVICE- srncrrrcn'rron formingpart of Beissued Letters Patent No. 11,520, saga January 1896. i I Original Ho. samenama Ju 26,1894, Lp hcatio nforrei'ssnefiled January 2,19a. suau'r sesstz.

Toal l whom it may concern: vertical sectional view takenon tlre line 5 Be it known that 1, CHARLES A. IIARKNESS, of Fig. 1. Figs. 6, 7,-an'd 8 are sectional deof Providence, in the county of Providence tail views of parts of the devices for effecting 5 5 and State of ,Rhode Island, have invented the starting of the car moving means hereincertain new and useful Improvemerfts in-Ele'-' after particularly-described. Fig. 9 shows a vator-Controlli'n'g Devices, of which thefol-j .modified form of means for connecting the lowing is a specification." door'with' the controlling-devices. Figs. 10

This invention has relation to elevators. or to 13, inclusive, are sectional views showing'oo lifts usedto carry passengers and freight from modified form's of part's of the controlling de- 10 story to story of high buildings or edifices! vices. Figs. 1,4; to 16, inelusive, are detail .It' is the object ofitheinve'ntion to'provide views'of parts hereinafter particularly remeansof simple structural characterifor conferred to. Figs. 17, W20, inclusive, are illnss trolling the movement of the car, which-means trations of means which may be employed to, cannot be actuated to start the elevator in its insure the. stopping of the car with certaint movement upor down until the door of access at the desired points. j 2 to and egress from the car'iscloseisothat I In the drawings, a-design'ates the-frame of-- there maybe no liability to accident orinjury the car, and I; is the frame or casing 'tothe; to persons by n'n'eans of' 'an open or partially elevator-well in which the car runs. open doorwhile the car is in motion. My invention contemplates the c0-operative It is also the object'of the invention to proeniployn'aent of the door by'which access is vide a construction whereby the starting-rope gained to and: egress from the car',jand this may be arranged in such way that passengers door may he in the car'itself or-in the casing maynot inis'chievously or otherwise meddle to the elevator well. v 7 5 with the rope i As the invention is herein represented it is 2 5 It is also the object of theinvention to proemployed in connection withthe door a in the 'vide improved means for stopping the'car of elevator-well casing.- i an elevator or lift in its upward "or downward 'd designates a wheel or pulley constructed" movement. I and arranged so as to be normally loose on a 80 It is also the object of the invention-to prolongitudinally-movable shaft 6, which shaft vidc other improvements of greater or less is supported. inbearings in the car-casing and im ortanc'e incident to the fore oin a in the fwheel or ulle the latter hav'in its r x O I b lhc invention consists of the novel conbearin s in a bracket connected with the" D. s struction, arrangement and relationsh p of car-casing. 85

parts, as I will now proceed to describe'in The wheeler pulley cl constitutes a device ,3 5 detail and point out in the claimshcreto 'ttpf which is in constant engagement with the pended. controlling line or rope for operating it.

Reference is to be had to (heal-maxed draw-- 'g designates the flexible starting and stopings and to the letters marked thereon, formping rope, by which the movements of the 0 ingapartof this specification, the same letters car are controlled, which rope may be passed 40 designating the same parts or features, as the about the wheel orpulley d or otherwise concase may be, wherever they occur. nected therewith, so that by turning thesaid 0f the drawings, Figure 1. s a-horizoptal wheelslightly in one directionthe car may sectional view of thefront of a car or lift and be started on its upward course and by turn- 9 5- the casing of an elevator-well and its door, i'ng itto-a certain extent in the other directhe car being shown as equipped witlrmy intion the car may be started downward, while 'vention, which is portrayed in plan. I Fig; 2 by moving it toan intermediate point the car is a verticalscctional view of part of the inmaybe stopped.- At the point where therope vention, taken on the line 2 2 of Fig. 1, Fig. 3 9 passes onto and leaves the pulley d a divid-' avicwsomcwhat similar to Fig. 2, but showing or guide pulley h may be employed to ing a difierent position of some ot the parts. keep thecrossing or meeting portions of the Fig. '4 is a sectional front or outside view rope intproper position on the said pulley. taken on. the line 4 4'of Fig. 3. Fig. 5 is a ddesignates wclutch member compounded l e is-constru ted'asa I cam-groove k, inwhieh a pint; or, the projecting ends thereof on'f-the said' :parts last an internal .--'or connected with the wheel or pulley d, and

j is'a corresponding clutch member secured to the shaft e, the teeth of one of vthe said gears facingthe'other. v The bearing in the ear-casing for the shaft bushing provided with shaft isor' are adapted to operate. I1

m indicates the handoperativ e,device, whiehin this case is a-handlejor crank sefcured to the inner-end of the shaft e,'by' which thelatter maybe turned. 1 v

The construction and arrangement of' the shaft e-is turned so as to bring the pin Z on the sh I115 surface or inward'or most rearward point n of the groove k the said shaft and the V clutch member j Jattaehed thereto will be drawn back andjthe clutch members *i j disv engaged, as shown in Figs. 1 and 2; but when the said shaft-is turned so as to brin g the pin 1 into the long or forward or outward part 0 of the'groove 7c the said shaft, and clutch.

member 3' will be moved outwardly, bringing as indicatedin Fig. 3. Thus it will be seen that the'hand-operative device or lever on can. directly control the rope through its operative c'oiineotions with the same," said operative connections being wheel or pulley d,

the elutchijmembers, and the shafte. The bearing inthe car for theshafte maybe constructed as a split bushing or be otherwise formedand secured in any suitable way;

in thecar-easing. Y 'p'is a disk'or plate on the outer end of the shaft e, though it might in some cases be the outer end ofthe shaft itselfgadaptedto' be brought to bear against and be stopped in I its outward movement by the door when the .pm thereon. and the cam-grooved bushing, which are all independent of the controllinglatter is opened, but "being free to be moved outward when the door is closed The plate p, together with the shift a, the

line, constitute a device which counts with the movabledoor for -preventing the opera-- :is moved soas to lie in the path of the plate and the shaft thelatter cannot be moved forward, and'asthe engagementtof' the pinl with the cameslotsin the bushing is such that the shaft e cannotbe revolved without-movin-g forward it follows that the said shaft and the. hand device m are locked against rotation undersuch. conditions. It will be seen q isahanddevice', consisting of a. springpressed bolt or pin, provided on its outer end with a gear 1' turning loosely on the bolt or pin, which is normally held pressed outward by the spring operating on the said vboltor pin q, but which may be drawn inward or .pnlley d.

described are such, that-when the the clutch members 'i andjnto mesh andefiecting aturning of the wheel or pulley (1,-

tion of the hand device when the door is .par-. tially or 'entirely'open, for whenthe door that at times the plate 10 may be dispensed with'and the shaft be employed-withoutit'.

backward by'the said bolt against the press- 'ure of its spring so as to be engaged by a like gears "connected or compounded with the I t 's an air-tight drum or cylinder-in 'which there isarranged a piston 10', the rod of which pistonis connected by means of a pitman V with the gear vythe said pitman being pivotedat its upper, end upona wrist-pin eccentrically located on the said disk.-

* A spring w is located'in'the cylinder 1, and is interposed between'the bottom thereof and the piston, so as' to assist in raising the latter. The cylinder near its top is provided with ports t to admit air each time that the piston israised as 1 it will be by said spring toa pointabove the said air-i.nle tf"holes or Ports i The drum or, cylinder, the "piston-"and ton-rod, the spring-pre'ssedholt q,j and the gearsr and s constitute-"a device'or meehane ism secondaryto the-hand devieezbeforejder,"

scribed for shifting the; line to 'stoplthecargjo as willbc hereinafter set forth, and the drum orcylinder and the piston and -itsfrod (withor without the spring) constitute anair-brake;

orcushioning mechanism, which is adapted to be connected with the device on the car in.

constant engagement with the line" (the wheel or'pulley'd) by the said hand device above referred to. The gushioni-ng' mechanism is employedforngradu'ally stopping the 'travel of the can-and isjsuperior to a brake-shoe IOO adapted to? brou ghtinto positive frictional engagement with the-loosely-revolnble wheel employed for shifting the line; as I have found by experience that if the shoe be brought into positive 'frictional engagement"wit-h t-he lineshafting wheel 'the'car' will 'be brought to a sudden standstill, whereasa cushioning device may be connectedwith thesaid wheel and gradually cheek it." r 1 As'thi s far described, t he operation of the invention may be explained as follows. Supposing the carof-the elevator to be in position at a floor to have the door closed, and that this is done, and all is in readiness to start the car,

say upward, the attendant, takinghold'of direction, carrying the. pin l on the shaft r fromthe point nfin the'cani-gi'oove k outwa d and into the longer portion 0 of the said camgroove. The efiect of this movement will'be to move the clutch m'emberj into engagement with the clutchimember 1', compounded with the pulley. or wheel d, and to move the disk or plate on the outer end ofthe shaft einto t-he space behind the'doo'r a, when the latter-isclosed.- VVhen, however, the door is open or 4 partially open, the shaft ;e and plate thereon,

1 the handle m, moves the same in the desired if it is'proyided with one, will be'stopped -by.

the door, so that/the clutch members 'ij cannot be brought into mesh, ;,By a slight further movement of the handlem'after the pinl has reached the portion 0 of the camgroove k and the clutch members 'ij have been brought into mesh one with the other the pulleyd urhl 2 5 set the car in .motion it will bea'eyolved by *be turnedsufficiently to actuate the starting- I beingbrought into mesh and effecting the rope g,-s'o"thatit will set the car in motion, after which the pin Z may'move back .in the gi'oove It was point n,when the clutch members c and 7 will be disconnected or moved out of mesh,- and the car will continue to rise until it reaches a point where it is, desired that it should be stopped, when the attendant,

I takinghold of the'fbolt or piu'q, may draw the 10 same inward, bringing the gear-fr into engagement with the gear .9, when the former will be revolved until stopped by the air compressed in the chamber tby the piston or plunger u operating through the medium of the pitman :5 'v, the [said compressed air acting with a ensh ioning tendency. .In some instances I may-dis pense with the use of compressed air and employ the spring alone to automatically stop the car. The stoppage of thegear '7' will act as abrake on the gear 8 and stop it and the connected pulley d, the stoppage of the latter 'a'ictin g upon the starting-rope to stop the movement of the car. It will be understood, of

course, that after the pulley'd is actuated to the action of the rope thereon so long as the :'car is k t'in motion, but will be-brou'ght' to a stop when the car is stopped. The door may now be opened, and afterthe passengers or-- freight are discharged and the door ,closed,

but not before, the handle m may be moved in a direction contrary to that beforedescribed with the same efiect, excepting that the starting-rope will be acted upon so as to of theicar on 'itsdownward movement may be f eifected in the same way bythe automatic stopping device,'as before describedfin stop-.

ping it in its ascent. I

For preventing action of the secondar mechanism, except near the'landing's, thej spring-pressed bolt q may be provided with a laterally-extending arm (1 (see Fig. 1,) which may act against a rod 12 extending from the top to the bottom'of the elevator-shaft. (See Figs. 17 to 20, inclusive.) The said rod it" may be provided at points where it is desired to stop the car with oifset portions'cfi'soar ranged that when the bolt q is in-its normal position the arm a will, as the .car moves, ride on the straight part 11 but as the car nears a landingand the attendant draws inward ;on the bolt saidarm maybe drawn in on the g: ffset;portion-c and allow the device'to be operated 'to-stop; the elevato'r'when it reaches- .the landing.

Instead of providing the rod 1) with offset points, as described, it may be cutaway at such points, as shown at e in Fig. 19.

Insteadof arranging the invention or the front of the'car, as shown, it may 'be arranged on one side, in which case instead of the endof the shaft 6 or the plate or disk on the outer end oij the shaft being stopped by the door. when the latter is. open, or partially open,

and so prevent the -clutch members from cause the car to descend, as will be understood. .without. further description. The stoppage starting of the car, it may-act against aslide a: which may be moved in unison, with the a door by means of segmented miter-gears y z, each provided with an arm a'connected through the medium of pitmen respectively with the door and withthe said slide :15, as shown inFig, 9. .Again, instead of providfling the rode with the pint acting in the cam act upon a stationary cam-surface at its back, so that by turning the shaft 6, through the medium of the handle m, the clutch members i-j may be moved into and out of mesh, all as will be understood by an inspection of Figs. 10 to 13, inclusive. In Fig. 10 the clutch members '6 j are shown out of mesh, while in Fig. 13 they are shown as in mesh.

' Instead of employingtwc pins 2 on the shaft -e,' as shown, I may 'use but one such pin,

constructing the cam-groove in. the bushing accordingly.

I may provide the door of the car with a grooved guideway f and the door of the elevator-shaft frame with a rib g, or vice versa,

so that the rib may move in the grooved guideway and the doors thus become locked together, and thus prevent one from being opened or closedwit out opening or closing theotherl i Th'e device may be employed to act in conjunction with the door of the car by supporting it, say at a point h, (see dotted lines in Fig. 1,) back fronithe extreme front of the It is obvious that other changes -may.be

. 'made in-the form'and arrangement ofthe parts shown and, described without departing from the nature or spirit of the invention, which broadly comprehends the employment of afiexible line and hand operative devices or means, substantially as described, for controlling the car in its movements, which means may be stopped against movement or against being actuated by the door'or means connected with the door when the latter is'not fully closed, so that the car cannot be setin motion either upor down until the door'is shut. Y

in g and using the same, though-without attempting to set forth all of the forms in which itmay be madeor all of the modes of'itsnsc,

it is declared that what is claimed is- '1. A car controlling device for elevators, comprising afiexible line for controlling the motor, and ahand device'- on the car for operating the same ,'c ombined with a movable door, anda device normally disconnected from the. controlling line, and enacting with.

said door for preventing the operation of said roo ' 1 Having thus explained the nature ofj'the invention and described a way of construct;

hand device when the door is moved toward open position and until it is closed.

2,. The combination with an elevator car adapted to. move up anddow'n in an elevator well or shaft, a rope for controlling-the motor,

a hand'operative device on the car, operative connections between said hand operativede vice and said rope, a door, and devices conls ti'ueted. and arranged to co-act withth'edoor and with the said operative connections for "locking the latter'and for preventing their operation when the door is moved toward open position-and until itis closed.

3. -A car controlling device, comprising a .controlling line, a device forshifting-said line, a cushioning mechanism for gradually stoppingthe travel of thecar,-and a handde gvice for connecting the hioning mechangm withthe. said line shit 2- controlling line, ahanddevice for shifting said line, secondary mechanism for shifting saidline to stop the motor, and meansto prevent the operation of said Secondary mech anism, except when the car is near a landing. 6. The combination with an elevator car adapted to move up andldown in an elevator well or shaft, a rope for conti-olling themotor, a hand operative device on the car, operative connections between said rope and said hand operative device, whereby the rope is under the control of the operative on the car, means on the car for automatically stopping the movements of the car, and a hand device on the car for-connecting said automatic sto ping means with said operative connections,w ere- A by said stopping means may-be thrown into operation to automatically stop-the car-.-

7. A car-controlling device for elevators comprising in its construction a rope for controlling the motor, and -a handle within the "caroperatively connected with the said rope,

the said connecting means embracinga clutch,

combined with the elevator door provided with' devices cc-acting with the said handle and-its connections to prevent the operation of the handle after the door is moved to open a it and until it is fully closed.

. 8. A car-controlling device for elevators or lifts, comprising in its construction a shaft mounted to tui'n andalso to move longitudi.-,

'nally' in its vbearings, a'plate ordiskion one end of the said shaft co-acting with the elevator. door whereby the shaft is prevented from outward movement except when the said door is closed, a starting rope, a wheel or pulley loose on the said shaft and engaged by the said-rope,- a clutch arranged to connect the shaft, 'as-sct forth.

.by the'handle, asset forth;

pulley and shaft, and a. handle for actuating said shaft.

9. dear-controlling devicefor elevators or lifts-comprising in its construction a shaft mounted toturn and also-to move longitudinally in its bearings, a plate or disk on one end of the said shaft co-acting with the elevator door whereby the shaft is prevented from outward movement except when the said door is closed, a starting rope,'awheel or.pulle'yloose on. the said shaft and engaged'by the said rope, 'a clutch-member compounded or connected with thefsaid wheel or pulley, a like clutch member fast on the shaft and adapted to engage the'firstmentioned clutch member,

and-a handle for actuating the said shaft.

10.;A car-controlling device for elevators or.

lifts comprising in: its construction a shaft mounted to turn and also tomove longitudin'ally in its bearings-,a plate or disk on; one end ofthe said shaft c acting with the elevator door-whereby. the shaft is' prevented fromoutward movement-except Whenthe said door is closed,- a starting rope, a wheel or pulley loose on the said shaft and'engaged by the said rope, a clutchamember compounded or connected with the said wheel or pulley, a like clutch-member faston the shaftand adapted to engage the first-mentioned clutchmember, a cam adapted engage means connected with the shaft to "eve-the said shaft longitudinally, anda hanille for turning the 11. Acar-controllingdevice for elevators or lifts comprising in its construction a starting "rope, a rotary pulley engaging the said rope,

the said pulley havinga gear compounded or connected therewith, h longitudinally movable boltor'pi'n, a gear on said bolt or pin adapted to be moved into and out of mesh with the first mentioned gear, and a brake eonnectcd with the second mentioned gear to stop it and the first mentioned gear when the two.

gears are brought into mesh, and so stop the pulley, move the starting rope, and stop the car, as set forth.

5 12, [In elevator controlling apparatus, the combinationof a normally stationary cable associated with so as to control the application of the motor and along which the car moves, with an idler on the car against which such cable always bears, ahand-operated device on the car, and means for engaging and disengaging the hand-operated device andthe idler.

13. In a car-controlling device for elevators or. lifts, a starting rope arranged outside of the car, a pulley engaging the said rope,=a handle on the inside of the car and a clutch for operatively connecting the handle with the pulley, whereby the pulley may be actuated 14. In a car-controlling device for elevators 'or lifts a pulley on the car and engaging'the controlling rope, mechanism] for stopping the pulley, a spring pressed bolt'for throwing said meeh'anism'into and ont of operative adjustment, rod extending through the elevator well and provided with offset portions, and a laterally extending-arm on said bolt and -ar-- ranged to bear against said rod:

15. In a car-controlling device for elevators or lifts, a starting rope, a pulleyengaging said rope, a handle and a clutch for operativ'ely connecting the handle with the pulley Whereby the pulley m ay be actuated by the handle.

16. In a carrcontrollingdevice for elevators or lifts,-a pulley on the ear and-engaging the controlling rope, mechanism for stopping the. pulley, a spring pressed boltfor throwing said mechanism into and out of operative adjustment and having'alateral extension, and a rod or bar extending through the elevator well in a position tojbe engaged by the lateral extension of the spring-pressedbolt, and whose continuity in one plane is broken at intervals,

substantially as and for the purpose de-

Images