US1120874A - Shop-door latch. - Google Patents

Description

H. M. WHITCOMB. SHOP DOOR LATCH. APPLICATION FILED APR.]., 1914.

1,120,874. Patented Dec. 15. 1914.

W/TNESSES HARRIS NORM/Y WH/TCO/4B., AMI/GM -Y fi 74% B firm W ATTORNEY 'HE NORRIS PETERS C0. PHOTD-LITHO.. WASHINGTDN. D, C

I residing at Albany, in the county of Green UNITEDSTATES PATENT OFFICE.

HABRIS MORGAN wnr'rcoivin, or nnisnnmwrscon'snv. Y

snot-noon ATCH.

To all whom it may concern Be it known that I, rirrcoMB, a citizen of the United States,

and State ofWisconsimhave invented certam new and useful'Improvements 1n Shop- Door Latches, of which the following 1s a specification. 1

My inventlon relates to improvements in door latches for shops and for which a patent was issued to me June 17,1913, 'No.

1,064,800, but more particularly to'the handles for the same, the construction, and

method of attaching the said handles to the sliding plate of the latch and to the fulcrum plate attached to the opposite side of the door.

The objects of my invention are, to construct a simple and more convenient handle which can be attached and held in position without the aid of the cotter pins employed in the previous 'and heretofore mentioned patent.

I attain these objects by the mechanism illustrated in the accompanying drawings in which Figure 1, is a plan of my latch with the top of the bolt race removed and the handles 4 and 5, in section through the sliding plate, Fig. 2, is a vertical section through a door and the latch on line R-S, Fig. 1. Fig. 3, is a longitudinal section on line TU, Fig.

1. Fig. 4, is a plan of the fulcrum plate6,

Fig. 5, is a vertical section on line X.Y, Fig. 4. Fig. 6, is a plan of the sliding plate 2, and Fig. 7, is a vertical section on .line

VVV, Fig. 6. 7

Similar numerals refer to similar parts throughout the several views. I

The casing 1, is made from a plate-of steel with a squareholt race raised and extending xlongitudinally through its middle line to the rear, which is closed and hasa hole punched through it for the passage of the tang 9 of bolt 3. Portions of the closure around the hole acting as the seat and rear stop for the actuating spring 7 On both I sides of the bolt race just forward of the ing plate 2. The four corners of the casing are rounded and adjacent to the same are HARRis :WTORGAN\ "holes for -attaching screws. The sliding w j p e qf ett a Patented Dec.15,'1914. Application filed A riiifism. Seria1-N o;828,938. v a

plate 2, is a rectangular plate of steel round- Vedflat the icornersand through which: are

punched two holes iadaptedto carry the four prongs of the two-bifurcated handles 4:, and 5. The; aforesaid holes are round on theleft side and extending laterallyto the right terminat ng in slots narrower thanthe diameter of the holes, adapted to lock the grooved portion-orneck of the handle, .5,

against end play, when the free endsof the handled, are in the round portion of the.

holes.

From the rear sideof saidplate is 'removeda rectangular notch to adapt it to a notch inthe' lower edges of the bolt3, see Figs. 1 and 3, which it engages andto which it is operativelyattached. i

The bolt 3, is a' steelchannelangula rly closedat the front end .and terminating at the rear in a round tang 9 adapted to carry the actuating spring 7,.and having a portion r removed from the lower edges to secure to and cooperate with the sliding plate 2. i

The handles 4 and 5, are formed from a bar of round steel straight on the front side, with semi-circular top and bottom sections terminating in two parallel prongs at right angles to the front. The said prongs are each adjacent the curved portions of the handles, groovedon opposite sides forming necks, which secure the said handles in op- I erative position in the slotted holes 10, one V in the sliding plate2, and one in the fulcrum plate 6,the free ends of both handles passing through the'round holes in the opposite plates, thereto, thereby adjusting them to various thicknesses of doors.

On the opposite side of the door from the casingl, is a stationary member-6,which is made from steel and contains "two holes 10 round at one end and slotted laterally, corresponding to the holes in sliding plate 2, but are disposed with the slotted holes in one member. opposite the round holes inthe other.

The said member is secured to the door by four screws ad acent its corners be-' ing the fulcrum and in connection with plate 2, carries the two bifurcated handles 4: and, i

5, the grooved portion of the handles and the connection to the latch bolt being clearly shown in Fig. 3.. y

It is obvious that a force applied to the handles 5, in the directionof the arrow I,

or applied tohandle 4, in the direction of y In a device of the kind described, in 0011? bination with a stationary member or casing havmg a bolt race, two apertures, two slots, and means for attaching to a door, a spring actuated bolt within the bolt race and engaging a sliding plate,asliding plate hav-m mg two round end slotted holes therein, adapted to hold one handle in locked position in the slotted portion by the round free endof a second handle, a fulcrum plate rigidly attached to the opposite side of a doorfrom the casing, the fulcrum plate having two round end slotted holes therein and corresponding to t he holes in the sliding plate, the round portion of the holes registering with the slotted portion in the sliding plate and the slotted portion registering with the round portion in the sliding plate,

twohandleswith grooved portions adapted ture in the presence of two subscribing witnesses. l

HARRIS MORGAN wHrrooMB. I WVitnesses: I f

V E. F. GRAVES,

HENRY KN PP.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G."

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