US934933A

US934933A - Door-operating device.

Info

Publication number: US934933A
Authority: US
Inventors: Edward Posson
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-11-24
Filing date: 1908-11-24
Publication date: 1909-09-21
Anticipated expiration: 1926-09-21

Description

' E. POSSON.

noon OPERATING DEVICE.

APPLICATION FILED NOV. 24, 1908.

Patented Sept. 21

3 SHEETS-SHEET E. POSSON.

DOOR OPERATING DEVICE.

APPLICATION FILED NOV. 24, 1908. ggzg ggg Patented Sept. 21. 1909.

SSHEETS-SHEBT Z.

E. POSSON. DOOR OPERATING DEVICE. APPLIOATIONYIILED K0124, 190a.

Patented Sept. 21.1909. 3 SHEETS-SHEET 3.

doors showingniy invention applied p drawings in whichenwean eosson, or cfmoaeo, ILLZNOES.

neon-ornne'rme DEVICE.

Specification of'Lettels Patent.

Patented dept. 231., think.

-doplic'ation flied November 24,1908. Serial No. 1662236.

1.0 all whom it may concern:

it known that ."I, EDWARD Posson, a city on of the United States, residing at Chicage in the county of Cook and State of fillinois, have invented certain new and useful improvements in Door-Operating 'Devices, of which the following is a specificstion. I

The principal object of my invention is to provide an improved device for opening and closing doors.

A further object is to provide a device for opening and closing hinged doors which fit tightly when closed so that considerable force may be necessary to move then].

My invention is applicable to refrigerator our doors which are hinged at the sides and inadeof considerable thickness so as to afford. insulation against transmission of heat and which fit tightly in the door frames.

Iihe foregoing objects as stated, and varione other objects will be made apparent in the following specification and claimswhen taken in connection with the accompanying plair of t ereto. and .5 are perspective views of dei igur'e afront elevation of a i at is a hoizontal section on the l a in ii 3., looking inthe direction of '0W 1 5 is a vertical section on the l. in. Fig. 1, looking in the direction of t f i s. 6, 7,8 and 9 are diagram- My invention is capable of embodiment in wide variety of forms and it may be ap- .ed innler widely varying circumstances. In the drawings 1 have illustrated its application to dosibie hinged doors such. as are employed on refrigerator cars, and. hove shown a form of my. inventionwhich is at present rred by 'me. :1 will now proceed to des .ribethis. specific embodiment of is mounted on the hinges 18 at'the sides end itsinne'r edge 19 is beveled as shown in fig. 1-. The other door I6 1s mounted on hinges .1 8 at the opposite side of the door mastic horisontai sections showing the 1nechanisin my invention n various, operativeltionm and l lg. 10.15 a iletailperspective opening and its inner edge is oppositely beveled as shown in Fig. 4. It will be seen that the door 15 must be closed first and that the door 16 closes upon it. Also the door 16. must be opened first to release the door 15. Attached to the door sill 17" is a bracket 2i which has a jaw 23 at its end. A tongue is pivoted in the jaw 23 by means of the bolt 22, a shoulder 25 being provided so to prevent the tongue 24 from falling to the right when it is in the position shown in Fig. 1. A plate 26 is attached to the lower cornercf the door 15 and the tongue 24; en gages this plate and holds the door 15 in closed position. When it isdesired to open the door 15 the tongue 24 can-be thrown over to the left.

"A vertical shaft 28 is rotatably' mounted v near the meeting edge of the door It? on the outside thereof, being supported by a phirality of journal brackets 27; A short arm 3A projects at a right angle from the shalt 28 and is engaged between the jaws 31. on the end of the hand lever 29. the arm 5-H and the jaws being connected together by the pivot pin 32. The lever 29 has a handle 33 at its extremity and is flattened iii an inter mediate portion and there provided with a slot to engage a staple in the door 1! At its top and bottom ends the vertical shaft 28 is bent side to forni short cranks 35, the bottom crank 35 terminating in a short wrist pin 36 and the top crank 3:3 {orurinating inn similar wrist pin 37. ,"iho shaft 28 a|;1 -l ihetwo eranks-ouoii'srl all in one plane. shaft eswhicn I call wrist plus many other wise be denominated as eccentrics, their mentral axes being parallel to the shaft 2H, but

at one side thereof. Attached to the top sill which is an opening 4-]. so that dirt may notaccumulate within the jaw 43. A tongue 42 extends back from the bracket 91. and is bolted to the door sill 17".

The face of the bracket which is opposite the jaw 43 is designated. by. the reference numeral 45.

As'sumin tion, it will that the doors are in closed p0sibe seen that theynre' prevented from opening" because any movement toward and thus prevents rotatitih of the shaft 28.

' Assuming now that it is desired to open the will swing the eccentric offset 36 around far laps across the meeting edges of the doors and 37 striking against the respective jaws Inasmuch as the-action between the offset 37 opening the inner door 15 is resisted by the g overlapping door 16 as well as by the tongue 24, and moreover any tendency of the door 16 to open. is resisted by the eccentrics36 I 43 and 39. The eccentrics are held against displacement by means of the arm 29, which is sealed to the staple on the door 15 at 30,

The parts concerned are shown diagrammatically for theclosed position in Fig. 6.

and the jaw 39 is exactly the same as between the offset 36 and the jaw 43, the following description of the mode of operation of the device will be restricted to the latter elements.

doors, the seal at. 30 will be broken and the lever 29 swung around in the direction of the arrows shown in Figs.'6 and 7.- This of the bracket 21 and thus the'door will be pried'open as shown in Fig. 7. A further rotation of the lever 29, as shownin Fig, 8,

enough so that as the door 16 opens the said offset 36 will clear the point of the jaw 43. In closing the door, the lever 29 should have the position shown in Fig. 8 so as to permit the offset 36 to again clear the vpoint of the .jaw'43. Thereafter the lever 29 should be rotated in the opposite direction, as shown in Fig. 9, thus pushing the offset 36 against the jaw 43 and forclng the door into its place. At any time after pulling the lever 29 away from the staple on the door 15, the lever can be rotated downward about its pivot pin'32 so as to clear any obstacles, and it will naturally hang in this position when released. After the doorlfi has been opened it is an easy matter to open the door 15 because its inner edge can be seized readily and moreover its inner edge is not then subject to any frictional restraint. The lever 29 and the proportions are such that a very great force tending to open the doors would exert only a moderate pull 'on the staple at 30. Thus it appears that the construction is strong and secure. A particularadvantage of my device is that 1t affords, means for both openingand closing the door, permitting a powerful leverage to be applied V for either purpose.

The structure is simple and convenient, and 1 there is nothing to obstruct the door opening when the doors are thrown back.

Referring to Fig. 6 it will be apparent that when the door has been forced home to closedposition the line of eccentricity of the eccentric parts of the shaft 28 lies substantially perpendicular to the inner face of the

aws

43 and 39, and that said line of eccentricity' also lies substantially tangent to the be made within the scope of. one ormore of are of movement of the door upon its hin e center 18. By reason of this relation of t 0 parts any force tending to move the door to open position has practically no' component actin in a direction torotate the shaft 28 to re ease position. ()n-the contrary with relation to such a force, shaft 28 and its ec' centric parts 35 are on a dead center by reason of the fact that the line of eccentricity lies substantially tangent to the path of the '75 movement of the door on its hinge axis 18. Furthermore by reason of. the fact that the line of ,e ccentric'ity is substantially perpendicularto the inner faceof the

jaws

43 and 39 there is no tendency for the eccentric parts to slip on said jaws. A further advantage of this arrangement arises from the fact that during the last part of the closing movement of the door, that is when the. greatest resistance is met, the force applied to the shaft 28 is acting with its greatestadvantage or leverage by reason of the fact that as the line of eccentricity approaches the perpendicular to the inner face of the

jaws

43 and 39 .the ofisets. of the shaft 28 move in lines almost parallel to the inner faces of said jaws, thus im arting the minimum of movement to the cor but with the maximum of force a plied thereto.

It will readily be o hserved that this device 95. can be applied to a single door 'as well as to double doors. For this purpose the door 15 ma be regarded as a sohdwall against wlnch the door 16 closes. Further it willbe observed that the mechanism attached to the .door might be interchanged with that at;

21 and 38 might be attached to the door in .155

a fiposition to be engagedb the respective 0 sets 36 and 37. I consi er that suchan interchange in the location of the parts would be comprehended under the following claims as an equivalent construction. These variations in the structure are mentioned merely by way of example, for it is obvious that a great variety of other changes might the appended claims; 5 i I c aim: a

1. In wear a hinged door, a shaft rota-- tably mounted on'said door adjacent its free edge, the ends of said shaft being eccentric and projecting beygnd the edges of the door, outer and inner aring 'aws fixed to the our side and co-acting Wlif said eecentric 'ends, the eccentricit of said ends being so related to the position-of and dis tance between said inner and outer jaws that when said shaft is rotated to cause said eccentricends to project outwardl frbmx the our side into contact with sah jaws, said door is thereby forced inwardly to closed position, and when said shaft- 15 9E door, outer and inner bearin the ar side and coactmg wit rotated to'cause said eccentric ends to ect inwardly toward the car side into contact with said inner jaws said door is therebyforced outwardly.

2. In a car a hinged door, a shaftlrotatablym'ounted on said door adjacent its free. edge, the ends of said shaft being eccentric an projecting beyond the edges of the 'aws fixed to said eccentric nds, the eccentricity of said ends being so related to the position of and distance between said inner and outer jaws that when said shaft is rotated to cause said eccentric ends to project outwardly from the our side into contact with said outer jaws, said door is thereby forced inwardly to closed posi tion, the line of eccentricity of said endsbeing substantiall perpendicular to the coacting surfaces 0 said outer jaws and lying substantially tangent to the path of move: ment of said door when said door comes to rest in closed position, and when said shaft is rotated to cause said eccentric ends to project inwardly toward the car side into contact with said inner jaws said door is thereby forced outwardly.

3. In a device; of the class described, an integral bracket comprisin a base plate adapted to be secured to-a oor frame, one part of said base plate constituting an inner aw adapted to 116 substantially parallel to the plane of the door opening, an outer jaw spaced from said inner 'aw, a' web connecting the lower part of t 0 free end of said jaw and leaving an opening between said door sill, an inward (projection adapted to overlie and be secure to the upper face of the sill, one part of said base plate con-' an inner jaw adapted to lie s'ubi stantial y parallel to the plane of the door 45 stitutin opening, an outer jaw spaced from said inner jaw, a web connectlng the lower part of the free end of said jaw with said inner jaw and web.

' 5. In a device of the class described, an

integral bracket comprising a base plate adapted to be secured to the outer side of'ai door sill, an inward rejection adapted'to' overlie and be s'ecur the. sill, one part of said base plate'constis tuting an inner jaw adapted to lie substantially parallel to the plane of the door opening, an outer jaw spaced from said inner 'jaw,'a web connecting the lower part of the 00.

free end ofsaid jaw with said inner jaw and leaving an opening between said aw and webgand a tongue pivoted to said base plate at the end thereof op osite said jaw.

In testimony whereof, 1 my name.

Witnesses:

'EoY'rm: M. ANDERSON,

LILLIAN A. .Knmr.

to the upper face of 55 have'subscribed e5 EnWARD rosson; f i