US311256A - August f - Google Patents

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US311256A
US311256A US311256DA US311256A US 311256 A US311256 A US 311256A US 311256D A US311256D A US 311256DA US 311256 A US311256 A US 311256A
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Prior art keywords
transom
chain
lifting
arm
door
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Expired - Lifetime
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/627Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables

Definitions

  • This invention has reference to an improved device for lifting transoms for doors ina quick and convenient manner by an easily-working and comparatively-simple mechanism; and the invention consists of a hinged transom provided with a U-shaped bracket-arm, to which the lifting chain or cord is attached.
  • the bracket-arm passes along a fixed guide-arm of the door-casing, said guide-arm having a pulley at its outer end.
  • the lifting-chain is passed over suitable guide-pulleys and retained by a suitable locking device, so as to hold the transom in open or closed position.
  • a second cord or chain is used for closing the transom when the retaining device of the first cord or chain is released.
  • Figure 1 represents a front elevation of a door with my improved transom-lifting device
  • Figs. 2 and 3 are vertical transverse sections of the same, showing the transom respectively in closed and open position
  • Fig. 4 a detail of the retaining device for lifting-chain.
  • a in the drawings represents a transom which is hinged at its upper or lower end to the door-frame, or pivoted centrally to the same.
  • the transom Alis .prov'fided with a fixed bracket-arm, B, which is attached to a point near the middle or end of the transom, and connected to a lifting cord or chain, 0, that passes over suitable guide-pulleys, d d, of a fixed arm, (1, at the upper part of the door-casing, over a side giiide-pnlley, d", to a retaining device, D, of any approwed construction, that shown in the drawings being made of a projecting plate,e, havingacircular opening, e, and a contractedextension-slot, c as shown in Figs.
  • the bracket-armB (shown in Fig. l) is made of U shape, so as to pass over a second areshaped guide-arm, B, that is attached to the door-casing, and provided with a pulley, b, at its outer end, said arm and policy serving to guide the lifting-chain and facilitate the opening of the transom without a too hard pull on the lifting-chain G.
  • a closing-chain, E is guided in suitable eyes, f, of the door-casing sidewise of the lifting-chain O.
  • the closing-chain E is attached to a short arm, E, attached to the transom, as shown in Fig. 1.
  • the closingchaiu E serves for the purpose of bringing the transom back into entirely closed position in case it should not have been closed entirely by gravity.
  • the ball or ring shaped lower end of the chain E is retained by a hook, f.
  • the lifting device is comparatively cheap, the different parts being quickly assembled and attached to the door-casing and transoms.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Description

(NoModeld A P, PPEIPER. TRANSOM LIFTER.
No. 311,256. Patented Jan. 27, 1885.
INVENTOR ATTORNEYS WITNESSES 1 UNITED STATES PATENT Fries.
l, .I AUGUST F. PFFIFER, OF NEVARK, NEW JERSEY.
, l TRANSOM-LIFTER.
SPECIFICATION forming piirt of Letters Patent No. 311,256, dated January 27, 1885. Application filed April 12, 1884. (No model.)
To all whom it may concern:
Be it known that I, AUGUST F. Prnrrnn, of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Transom-Lifters, of which the following is a specification.
This invention has reference to an improved device for lifting transoms for doors ina quick and convenient manner by an easily-working and comparatively-simple mechanism; and the invention consists of a hinged transom provided with a U-shaped bracket-arm, to which the lifting chain or cord is attached. The bracket-arm passes along a fixed guide-arm of the door-casing, said guide-arm having a pulley at its outer end. The lifting-chain is passed over suitable guide-pulleys and retained by a suitable locking device, so as to hold the transom in open or closed position. A second cord or chainis used for closing the transom when the retaining device of the first cord or chain is released.
In the accompanying drawings, Figure 1 represents a front elevation of a door with my improved transom-lifting device,and Figs. 2 and 3 are vertical transverse sections of the same, showing the transom respectively in closed and open position; and Fig. 4, a detail of the retaining device for lifting-chain.
Similar letters of rcfereigee indicate corresponding parts.
A in the drawings represents a transom which is hinged at its upper or lower end to the door-frame, or pivoted centrally to the same. The transom Alis .prov'fided with a fixed bracket-arm, B, which is attached to a point near the middle or end of the transom, and connected to a lifting cord or chain, 0, that passes over suitable guide-pulleys, d d, of a fixed arm, (1, at the upper part of the door-casing, over a side giiide-pnlley, d", to a retaining device, D, of any approwed construction, that shown in the drawings being made of a projecting plate,e, havingacircular opening, e, and a contractedextension-slot, c as shown in Figs. 1 and 4. By moving the lifting-chain 0 forward into the opening 6' of the plate a so as to clear the contracted slot 6', the lifting-chain O can pass readily through the opening 0. By pulling the lifting-chain G the transom A is opened, while it is closed by its own weight when the lifting-chain is let go. On pushing the chain C back into the contracted slot 0 it is retained by the slot and locked into position.
The bracket-armB (shown in Fig. l) is made of U shape, so as to pass over a second areshaped guide-arm, B, that is attached to the door-casing, and provided with a pulley, b, at its outer end, said arm and policy serving to guide the lifting-chain and facilitate the opening of the transom without a too hard pull on the lifting-chain G.
For the purpose of closing the transom a closing-chain, E, is guided in suitable eyes, f, of the door-casing sidewise of the lifting-chain O. The closing-chain E is attached to a short arm, E, attached to the transom, as shown in Fig. 1. The closingchaiu E serves for the purpose of bringing the transom back into entirely closed position in case it should not have been closed entirely by gravity. When the transom is closed, the ball or ring shaped lower end of the chain E is retained by a hook, f.
The lifting device is comparatively cheap, the different parts being quickly assembled and attached to the door-casing and transoms.
Having thus described my invent-ion, I claim as new and desire to secure by Letters Patent- The combination of a hinged or pivoted transom, A, having a U-sha-pcd bracket-arm, B, a fixed guide-arm, 13, having a pulley, b, a lifting-chain, 0, attached to the bracketarm 13, a fixed upper arm, (1, having guidepulleys d d, a side guide-pulley, (Z and a reprojecting taining device, D, for the lifting-chain,sub
stantially as set forth.
In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.
AUGUST F. IFEIFER.
Witnesses:
PAUL GOEPEL, SIDNEY MANN.
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