US2011893A - Elevator - Google Patents

Description

Aug? 1935. M. c. DE WOLFE 2,11,8

ELEVATOR v Filed July 2, 1,954 2 Sheets-Shet 1 I I W11 16 i9 17 H 20 ATTORNEYS.

Aug. 20, 1935. M, c, DE WOLFE ELEVATOR Filed July 2, 1934 2 Sheets-Sheet 2 NIF- '37 I! all TOR.

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INV N mew/ w BY I)? ATTORNEYS.

other half having recesses for receiving the projections. V

Screws 42 may be used for clamping the two halves about the control cable 35. 38, 39 and 4B are adjusted on the control cable so that theywill be disposed opposite the cage when the cage is at a floor level. It will be seen that the top button 38 has a disc 43 disposed at its upper end, while the button has a, disc 44 disposedat its lower end. The cageor elevator1 carries a sleeve 45, see Figure 6, and this sleeve has flared ends 46 and 4-1 for receiving the buttons 38, 39 and 40 as the" cage moves upwardly ordownwardly. vA sliding fork-shaped member 48 is mounted in the ,bracket 49 carrying the sleeve, .andthis forkshaped member has a handle, 50 which permits the operator to move the 'slideand cause the recess 5| of the fork to slidably receive thecontrol cable 35. If the operator'wishes to stop the cage at the floor level B, he moves the slide-48 into operative position and whenthe slide contacts with-the button' 39, it will move the button and the control cable 35; and will cause the cable to rockthe pulley 36; "This rocking movement rocks 1 a shaft 52 whichsupports the pulley and'the shaft swings a contact arm 53, see Figure 1, from the contact 54, which closes a circuit to a motor, not

shown, onto a contact whichjcloses a circuit to a braking mechanism not shown. The. motor controlled by theclosing of the contact 54 actuates the drum around which the load cable"; is wound. The contact 55 when closed actuates the brakingmechanism which stops further rotation of the, load cable drum.

QWhen the operator wishes to cause the cage to move from the floor B to the 'fioor C, he releases the slide 48 and pulls downwardly on the control cab1e and closes the switch arm 53 with the contact 54 This causesthe motor to actuate the drum for-moving the cage. Whe'n the cage ["When the cage reaches the lower platform Aha sleeve 45 strikes the disc 44 andmjoves the control cable forrotating the holder 36in an opposite direction for'swinging the arm 53 onto a. contact 56, this contact closing the circuit to the same braking mechanism. 'It willbe seenfromthis that a novel control for the'movement of the cagej is provided and this control can only be actuated bythe operator in the cagelj The guide lines 2 and'3 may b fis at their tops and bottoms o'r'be carried by ajd'rum s'o' that, they can be extended. This permits the lengthsof' the 'linesto be extended at will." It is obvious that the elevator can be operatedwith or withoutthe counter-weights. 1

" The "cables l6 and 19 may operate ifrom the same drum a stated in an earlier part of the specification, or they maybe wrappedaround independentdrunis. The cage or skip 'l is prefer: ably provided with a window"'a djacent to the control cafb1e35 for permittingaccess to the cable b j h ohe'rg 1-, f The cable. '35 ca'nfcon rolthe; motor circuit for The buttons I the moving of the cage l. The operator in the cage has access to an electric control, within the cagefior causing the elevator to move up or down at the will of the operator. The circuit for causing the elevator to pass up or down has the switch arm 53 and the contact 54 in series therewith. ,The moving of the switch arm-off the contact stop; It is obvious that the cable 35 and switch arm 53 instead of actually controlling the move- .ment of the elevator could flash signal lights to an operating engineer who had control of the moyementsof'the cage.

1. In combin tion,-an elevator cage, angle irons encircling; the cage and providing vertical guide channels on its sides, guide cables passed through the channels-for guidin the elevator cage in its movement; and-rollers mounted in the guide channels and being disposed on opposite sides of the cables for holding the cables in the channels.

2. In combination, an'elevator cage neans -for moving the cage up and down; a counter-weight for the cage and' 'comprisin'g a cable having one end connected to' the cage; weights secured to the other endof the cable, pulleys for supporting; thecable between the cage and weights, certainof said weights being'removable when it'is'desired to lessen the weights of the counter-weight and additional weights being added when it is desired to increase the weight of thecounter-weight, and

guide cables for the weights-the upper and lower weights having openings for slidably receiving the-guide cables, the intermediate weights having recessed-ends for slidably receiving the guide cables.**"-' 3. A counter-weight for an elevator comprising guide cables, a fork-shaped member, weights having openings for receiving the legs of the member, means for securing the weights to the member, and weights designed to be-placed between the top andbottom=-weights,* these intermediate weights having recessed ends for slidably receiv ing the. guide cables, said? first named weights having openings for slidably receiving the'guide cables and acable ior-liftin'gthe fork-shaped member and weights and having its other end connectedto anelevator cage.

to a stop, buttons mounted on the cable and spaced'therealong at desired points,a sle evek zarried by the cage and slidably receiving the cable and the buttons asthe cageismoved, an" upper and a lower stop-independently movable into.

the sleeve and engageablewith a button passing through the sleeve for causing the button and cable to'be moved by the cage for stopping the cage, the upper stop" being movable intooperative position; whenj the cage moving downwardly, and the lower stop being movable into operative position when'thecage" is moving up wardly. I I p AR K 0. DE ,WQLFE.

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