US553807A - Island - Google Patents

Description

(No Model!) 1 2 Sheets-Shefl 1. O. A. HARKNESS.

ELEVATOR CONTROLLING DEVICE.

,807. Patented'Jan. 23, 1896.,

WaTN E5555;

' the same-letters designating UNITED STATES PATENT OFFICE.

onAnLns A. immmnss, Ol PROVIDENCE, RIIODE ISLAND.

ELEVATOR=CONTROLLING DEVICE.

: SPECIFICATION forming part of Letters Patent No. 553,807, dated. January 28, i896.

551mm filed ootober'lt},1895-Barie1ll'o-5B8fl5l. -(No'model.)

.To dllwhom it may concern: 7

Be it known that I, CHARLES A. HARKNESS, of Providence, in the county. of Providence and State of Rhode Island, have invented cer- 5 min new and useful linyirovementsin Elevator-ControllingDevices, of which the fol-- lowing is aspecification.

This invention has relation to the class of elevators inwhich a car traveling. in a well or hatchw'ay is provided with a lever or equivalent hand device supplemental to the controlling-1ine for operating the latter.

Owing to the carelessness or inability of the operatives and to other causes which may or is may not be reasonably avoided, there is always more .or less danger attending the en- 'trance to or exit from the car by passengers, and it is one of the purposes of this invention to reduce this-danger to a minimum by taklc iug the hand 7 operative while a corridor-door is partially or entirely open, by means cooperating with the corridor-door, for loclaing the lover or equivalent hand device so as to prevent the latter i from being moved at such. limes.

Reference is to be had to the annexed d n \vings, and to the letters and figures marked "thereon, forming a part of this specification,

or features, as the case may be, wherever they occur.

" ()n the drawings, Figure 1 is a side elcvation of an elevatoiacar with my invention applied thereto. Fig. 2 is a front elevationa'nd a partial section on the line 2 2 of Fig. 3 of the same, the mechanismopcrated by the 'cor rider-door being shown also. Fi g. is a plan view of theear, showing-the corridor-door and a portionof the wall of the well in sectiou.

Fig. 4 is a detail view of the lock for the'l'e;

vcr of the form shown in Figs. 1, land 3,

and "is asection on the line i l of Fig. 3. Fig. 1

5 is a side elevation of a car, showing a moditied device for locking the lever. Fig. 6 isa horizontal section on the line 6 o of l ig. 5. Fig. 7 shows the same device employednith a different style of running line. Fig. Sshows means for locking the lever through the onediuni of the line, which latter is formed partially or entirely as a chain with centrally m'en links. Figs. Hand ifishowhow the lock' line-shifting lever-,which 1's device from the control of the the same parts.

.may be operated to engage and lockv the hen dle itself. p

In carrying. out my invention I car a suspended in the usual way and raised and lowered by a motor (not shown) of any approved style or type. For starting, stopping, and. reversingthe motor I employ'a. line which in Figs. 1 to lisastanding-line-that is, one relatively to which the car travelsnndwhich is shown, in Figs. 5 to S as a running line or one attached to the ear and travcling therewith.

Referring more particularl to Figs. 1 to 4, inclusive, 0 indicates ia han device on'the car operatively connected with the control ling-line and eonsistihg in this i-nstanc'e'of the to-.a cross-shaft d extending-tinder ,{thecar and journaled in brackets e. flhelever projeets through the floor of the car andisarranged to move in guides f onthe side thereof.

g 9 represent a two-armed lever which is keyed, or otlrcrwiserigidly secured, to the ontwardly-projecting end of the shaft (Z, and 7t h represent the line-pulleys which are jour- -naled upon the ends ,0f the said'arms 9g.- By swinging the hand-operative lever etc the right or left the shaft cli's'roekeclial d the pulleys 7:. 71. are'corrcspondinglyi-raised and lowered. As illustratedi-n Fig. 2, the pulleys are at a neutral posit-ion and the motor and the car are at rest. Instead of employing pulleys upon the ends of the arms, asused in connection with a"standing-line,l may reemploy a rigidly secured move the pulleys'and sceure'the ends of a running line tothe ends of the lever, as in Figs. 5 and (i.

i The hand-lever may be said to be in 0011- stunt engagcmentn'ith the iinc, whether the latter he a standing line or a running line, a

(through the medium of the connecting parts) i in contradistinct-ion-to being loose relatively to the line and adapt ed to be connected thereto by a clutch.

\Vith the parts described I provide means for locking the lever against movement when the latter is in a neutral position by devices coacting'with the corridordoor. I

The wall of the well is indicated by i'and j, and the sliding corridor-door'is indicated by 7:, there being a corridor-door for each s cancer lending. I employ 2t lock fol-the corridordoor, which consists of-two toggle-levers (on,

. pivoted together at their inner weighted ends by a pin it, the outer end of leverlbeing pivoted to the walh'i by a pin and the outer end of lever in being pivoted to the edge of the door 71 by a pin 1). 'hen the levers are lying in the same horizontal plane with the in the direction of the arrow in Fig. 2, the

link if forces the end 3 of the lever m forward and downward, and throws the lever m up- -ward, so that the two levers l.-m form an angle to each other, allowing the door to be opened by pulling upon the handle q.

."u is e two-armed lever having an ofiset u at the topof the vertical arm pivoted ail/u u pen the wall of the well, and having its horizontal arm connected with the lever l by the link 10 and having at the upper end of its perpendicular arm a projection u at right angles thereto, and extending inward toward the car.

:z'; is a cross-head, bow or abutment, having a laterally-extending bar '1] supported upon swinging links .2, one or both of which may be weighted so as to normally hold the cross-.

head firmly in the position shown in Fig. 2, (in which figure only one link is shown as weighted,) there being a suitable stop .2 for preventing the cross-head from swinging. too for in the direction of the stress of theweight. The links ,2 z are pi voted to brackets a upon the top of the car.

i b" is the locking device for the lever, as

shown in. Figs. 1, 2 and 3, it consisting of a, depending bar pivoted at c to a bracket d,-

" secured below the floor of the car. The bar b is curved upon its inner face and is provided with e notch e for a purpose to be described.v It is also provided with e laterallyextending weight f which tends to normally Upon the shaft (1, which.

throw it forward. extends beneath the bottom of the car, I mountor secures latch or catch g, which'is errenged to project laterally from the shaft, so that when the lever is in a neutral position the locking-bar b' may swing forward until the latch or catch g is engaged by.the Walls of the notch 1 in the said swinging lock-bar. The face of the lock-bnr is in the are of a circle struck from the center of the-rockcross-head. or abutment as through the medium of rods h h h and bell-crank lovers 2" i '2",

The levers are provided with which letter are suitably pivoted to' brackets on the car. Nheu the cross heed or abutment is forced in the direction opposite the stress of the weight it will, through the-Inedium of the said rods and levers, allow the lock-bar 'b' to engage the latch or catch g on the rock-shaft d and lock the latter in a new trel position. i

The means for operating the cross-hend or abutment .20 consists of the two-armed lever -u which has been heretofore describedas being connected by a link 10 with the toggle-lever l.

g I have illustrated the car as being-provided with duplicate cross -hez1 ls or abutlnents which are connected with 'the lock-bar I), so that doors on different sides of the elevatorloek bar would not release the latch or catch until both doors have been closed. "lhis is accomplished by connecting one/of the horizontal rods h to a large bell-crank lever z and securing the vertical red It and the other of the horizontal rods h in Fig. 1,-to the armsof a smaller bell-crenklever i pivoted to the free arm of the large bell-crank lever t". Thus by this means either or both of the ab utm cuts will operate to lock the lever when the-door or doors are opened.

The operation of the parts. is as follows: Suppose the car to have been broughtto'n standstill opposite one of thecorridondoors by the operative throwing the lever to a central or neutral position. Thefstoppiug of'the caret the lending" brings. the cross-headgor abutment a: opposite the ofiset'zi from the vertical arm of the lever 11, so that when the operative draws upon the handle q and throws the door back the lever l liftsflthe rod 10 and forces the said olfset tdof the two-arm lever the cross-head or abutment, The

it against lever ui through the offset ufin turn thrusts the cross-head or abutment against the stress of the weight and through the medium of the rods 1 and bell-crank levers -i allows the lockthe lever c. This locking the lever is accomplished bythe slightest opening of the corridor-door as the links or rods h. are passed through the bell-crank levers i loosely, and hence the lock-bar b can be anld is arranged in such close'proxim'it-y' to the as to engage it by a very slight movement.

\Vhen the car is to be started, the door is first closed, so that the lever it with its offset u will be withdrawn from the cross-head or abutment and the latter will be caused by the weight to return to its normal position. returning it draws uporftlhe rods 71 and bellcra-nk levers 'i, and pulls the lock-bar away from-the latch br cetch, so as to unlock the lever. Y l i i In Figs. 5 and 6 I provide a,slightly dii ter.- ent means for locking the hand operetive lever. .In these figures it consists of a lock-bara sliding in guides b and connected withthe atchior catch -well may be locked. It will be observed that, should two doors opening from the same floor into the shaft be opened at the same time, the

bar I) to engage the latch or catch g and look .cross -head 51: by rods and a bell-crank lever d. The lock-bar a, is arranged to drop into engagement with a sector-shaped arm e suitably keyed upon the end of the cross-shaft-d.

When the cross head a: is thrust in the direc--' tion opposite the stressof the weight by the two-armed lever (not shown in this figure) the loek-bar a will'be allowed to drop into a notch f 2 in the'arm e when-the latter is in the upright position," by reason of-the hand-operativelever being in its neutral position, the arm e thus 'constitutingja catch; A running line is shown as being employed in these fignres instead of the standing line, it being socured to the ends of the two-armed lever g.

The latch or catch arm e in Fig. '5 or the latch=or catch'bar g in Fig. 2' maybe ark ranged at either end of Lhelook-bar-d, or'at any point intermediate of the ends;

In Figs. 7 and 8 Ihave illustrated arun ning'fline as being'locked by-mechanism 0ppassing around the sprocket-wheel h on a thehandie or leveron the inside of the car, which is not shown. y

In Fig. 8 l have shown how the lock-bars indicated by! in this case, and operated as vin the other figures by the cross head or abutment and its enacting parts, may be employed to lock the hand-operative device by engaging the links of the chain g. The lock-bars are pivoted-at m one on each. side of the chain, and are connected to the rude by means of other links or rods "n When the' rod (2 is lowered, the lock-bars Z will enter the links of the chain 9 which in this case form the catch therefor, thus locking the spro'cketwheel 71, and the hand-operative-devic'e on the inside-of the car. (Not shown.)

I have shown two lock-bars, 'so'" as to look the line on each side of the wheel and prevent any possible chance of the wheel being accidentally turned. In practice, however, I find that a single look-is suflici'ent in most InFigs. 9 and 10 I have illustrated'the lockbar a as dropping into a notch in a casting a), forming a catch secured to the hand-operative lever c, the lock-bar a sliding in a,

guide I) on the wall of the car.

The bow y, bar vfrods h, and bell crank levers i in the instance of my invention illus trated in Figs. 1 to 4, constitute lock-actuating mechanism, and'in the examplesof my invention illustrated in'Figs. to this' mechanism consists of the bow 0:, bar y, rods '0 and bell-crank levers d In all the examples ofmy inventionillustyated in the drawings, the toggle-levers I m, link 10, and bell-crank lever nu constitute means connected with the door to operate the lock-actuating. mechanism so as to cause the lockto engage said hand-lever when the door ispartially or entirely open.

'1 do not herein broadly claim scar-controlling device'for elevators comprising a flexible line for controlling the'motor and a hand device on the car for operating the same,

combinedwith a movable door and a device normally disconnected from the controllingline and coasting with saiddoor for-prevent until it isclosed, as that forms the subject'- matter of a claim in my reissued Letters Pat- I rent, dated January 7, 1896, and numbered,

11,520; nor doI herein make specific claim to the toggledevers Zm and the means for operating them consisting of, the handle q and ing-the operation of said hand device when, 4 the door is moved toward open position, and

the link-15,1101 to such construction of the I toggle-levers as adapt them to lock the door,

as they aredescribed and claimed in my-copending application, Serial No. 565,955, filed October 17, 1895. v

- Having thus explained the nature of theinvention and described several devices in whichit is embodied, without, however, attempting to set forth all of the forms in which 'it may be embodiedor all of the modes of its use, I now declare that what I claim is- 1. An elevator-controlling apparatus comprising acontrnlling-line, a hand device on the car in constant engagement therewith, a

movable door, and a lock-coaeting with the door for locking the hand-operative device positively against movement, when the door is partially or'entirely open.

2. An elevator-controlling apparatus, comprising a controlling-line, a hand-operative device on (the car connected therewith, a lock movably mounted on the car, lock-actuating mechanism, a door, and means connected with said door to, operate said lock-actuating mechanism so as to cause said hand-operative deentirely open.

vice to be locked when the door is partially or 3-. A car-controlling device comprising a controlling-line, a hand-lever'operatively connected therewith, a lock-bar mounted on the car, a movable door, and lock-actuating mechanism cnthe car, and means connected with the door to operate said lock-actuating mechanism to lock said hand-leverwhen the'door is partially or entirely open.

4. A car-controlling device comprising a controlling-line, a hand-leveroperatively connected therewith, a lock-bar mounted on the operatively connected with the loek-bar, and

meansconneoted with the door and adapted to impinge upon the abutment when thedoor is partially or entirely opened, and cause the lock-bar to lock the lever,

5. A car-controllingdevice, comprising a 1 car, a movable door, an abutment on the car controlling-line, a hand-l ever operatively connected therewith, a lockbar pivoted on the v v1.4a

ear, and adapted to lock the said handJever,

a. movable door, and a movable abutment conneeted with. the swinging lock-bar, and coecie ing with the door to lock the hand-lever when thcgloor is partially or entirely open.

, 6. A cer controlling device comprising a controlling-line, aha-nd-lever operative] y connected with said line, a shaft on which saidlever is mounted, and having ala-tch thereon, a movable lock adapted to engage said latch, a movable. abutment on the car connected with saidlock and a door adapted to impinge upon said abutment and cause the lock to engage said latch, while the door is partially or entirely open.

'7. A car-controlling device comprising a controlling-line, a hand device on the cer'operatively connected therewith, a catch on said hand device, a lock for said catch and a door with which the lock coacts to en gage and lock vsaid catch while the door is partially or entirely open.

8. A car-controlling device comprising a controlling-line, a hand device on the ear in constant engagement therewith, 3, look for said hand device, a door, and means costcting with the door for causing said hand device to be locked by said look while the door is vpartially or entirely open.

9. .An elevator-controlling device comprisin g a controlling-line, a two-armed lever with which the line is connected, it hand-operative lever, as at c, rigidly secured to said twoarined lover, a movable door, mid a lock 00- acting with the door for positivel y locking the hand-lever and the two-armed lever against movement when the door is partially or entirely open. e

10. An elevator-controllingdevice compfising a controlling-line, atwo-e rmed lever with which the line is connected, it hand-operative lever rigidly secured to said two-armed lever, a movable door, and a loek-barcoecting with the said-door for engaging and locking the hand-operative lever directly, when the door is partially or'entirely open.

In testimony whereof I have signed-my.

name to this specification, in the presence of M. B. MAY, ARTHUR W. CeossLrtv.

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