US229657A - Hatchway safety-gate - Google Patents

Hatchway safety-gate Download PDF


Publication number
US229657A US229657DA US229657A US 229657 A US229657 A US 229657A US 229657D A US229657D A US 229657DA US 229657 A US229657 A US 229657A
United States
Prior art keywords
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
Application number
Publication date
Application granted granted Critical
Publication of US229657A publication Critical patent/US229657A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current




    • B66B13/00Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02Door or gate operation
    • B66B13/04Door or gate operation of swinging doors


(No Model.)
I. M. BAKER. Hatchway Safety Gate.
No. 229,657. Patefified July 6,1880.
w o O O 0 Li J] l o a o o kxw l 1 Hi I H e il WITNESSES: mvsmua;
I a wm mw,
SPECIFICATION forming part of Letters Patent No. 229,657, dated July 6, 1880.
Application filed April 13, 1880. (No model.)
To all whom it may concern Be it known that I, FRANCIS M. BAKER, of South Bend, in the county of St. Joseph and State of Indiana, have invented certain new and-useful Improvements in Elevator Safety- Gates; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.
My invention relates to safety-gates for passenger and freight elevators; and it consists in the following-described mechanism, whereby the moving elevator automatically operates to open an exit-gate, which is closed after the elevator has passed the floor at which said gate is placed.
In the drawings, Figure 1 is a view, in side elevation, of a device constructed according to my invention, the solid lines representing the device as closed and the dotted lines showing it open. Fig. 2 is a front view of the spring for closing and operating the gate.
In the said drawings, A is the elevator; B, the floor; 0, the guide-posts at the side of the elevator, between which it moves; D, a gate consisting of two parallel stringers united by pickets, said stringers and pickets all pivotally connectedand arranged to move together upon the well-known principle of the parallel ruler. Each of the stringers of the gate is pivotally attached, as shown at D, to an upright or gate post.
The upper stringer of the gate extends beyond its pivotal attachment D, to afford an attachment for a link, E, which connects said stringer-and right-angled lever or bell-crank F, which is also pivotally attached to the hanger, or to any other convenient place.
I would here state that it makes no difference whether the link E is made to connect the upper or lower stringer of the gate, as either upper or lower stringer might be extended beyond its pivotal attachment to the upright or gate post to afford an attachment for the link E.
To the opposite arm of the bell-crank F to that at which the link E is attached is pivotally connected an arm, which is rigidly attached to the spring H. This spring, at either one or both of its ends, is provided with slots H, through which pass screws or pins for retaining it in position against the hanger or other portion of the building convenient for its attachment. There is a rigid connection between the arm G and spring H, so that the pull of the spring, in assuming the position shown by the solid lines in Fig. 1 of the drawings, will operate, as hereinafter shown, to close the gate. This spring H is located and adjusted in such a manner that a sufficient portion of its arched body shall project beyond the plane of motion of the elevator, so that in moving up and down past the spring H the elevator will at the proper time impinge against the spring H and press it inward.
The operation of my device is as follows: When the elevator is not in the vicinity of the floor where my gate is located the spring H will pull forward, through its arm G, the bellcrank F to the position shown by the solid lines in Fig. l of the drawings, thus closing the gate D down upon the floor. When, however, the elevator comes to the floor, it will, by impinging against the spring H, push it inward, and thereby turn the bell-crank F and open the gate, as shown by the dotted lines in Fig. l of the drawings.
, The slots H of the spring H are provided to permit the spring to be thus operated upon by the elevator without strain or liability to break.
I am aware that a vertically-swinging hatchway gate or guard has been operated by means of a curved bar attached to the elevator-cage and adapted to strike a curved lever connected with the gate by means of a rope, and hence I would have it understood that I make no claim to such construction and combination of parts.
What I claim is The combination, with an elevator-cage, of
an arched spring, H, attached at both ends to the elevator guide, an arm, G, bell crank lever F, and link E, the latter pivoted at one end to the bell-crank lever and at its other end to the vertically-swinging gate, substantially as set forth.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
' FRANCIS M. BAKER. Witnesses:
US229657D Hatchway safety-gate Expired - Lifetime US229657A (en)

Publications (1)

Publication Number Publication Date
US229657A true US229657A (en) 1880-07-06



Family Applications (1)

Application Number Title Priority Date Filing Date
US229657D Expired - Lifetime US229657A (en) Hatchway safety-gate

Country Status (1)

Country Link
US (1) US229657A (en)

Similar Documents

Publication Publication Date Title
US229657A (en) Hatchway safety-gate
US339459A (en) Farm-gate
US530273A (en) Elevator
US292462A (en) Safety-gate for elevators
US392955A (en) keeutzkamp
US139014A (en) Improvement in elevator-hatchway protectors
US489755A (en) Elevator-hatchway attachment
US375894A (en) potts
US420744A (en) Hatch-door for elevators
US540406A (en) Device for opening or closing doors of elevator-wells
US397085A (en) Guard for elevators
US143944A (en) Improvement in elevators
US463632A (en) Elevator
US527665A (en) Device for operating elevator-doors
US442310A (en) Hatchway-guard
US1340664A (en) Elevator-lock
US544667A (en) eldee
US1491245A (en) Elevator switch-operating and door-closing apparatus
US152576A (en) Improvement in hatchways
US777193A (en) Door opener or closer.
US579153A (en) Elevator-door-closing mechanism
US465229A (en) Elevator
US522297A (en) Safety device for elevators
US777674A (en) Farm-gate.
US778550A (en) Elevator-lock.