US 1124862 A
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Description (OCR text may contain errors)
J. -W. GIEMMER, A. ROSENDAHL & A. N. HALVORSON.
Doo@ 1.00K. APPLICATION FILED JUNE 15, 1914.
2 SHEETS-SHEET 1.
Patented Jan. 12, 1915.
5mm/tow n J. WGLEMMER, A. ROSENDAHL & A. N. HALVORSON.-
. DooR LOCK.
APPLICATION FILED JUNE 15, 1914.
2 SHEETS-SHEET Z.
v Patented Jan. 12, 1915'.`
' ED OFFCE? JAMES w. cLEMMnB., ANDREW nosENDAHL, AND .ALBnnTmgHanvcgscNj/QE FARGoj-l* f NORTH DAKOTA.
To all whom may concern Be it knownthat- We, JAMES W. CLEMMER, ANDREW RosENDAHL, andA ALBERT N. HAL- voRsoN, citizens' of the United States, resid-.
ing at Fargo, in the county of Cass and State of North Dakota, have inventedv certain new .and useful' Improvements in Door- Locks; and we do declare the followingto be a full, clear, and exact description ofthe invention, such as-will enable others skilled in the art to which it appertains to make and use the samef Our invention relates to improvements in door locks and hasfor its primary vobject to provide a device of this 'character so-cony to construct the device in the vmost simple manner consistent with -its proper operation,
With these objects in view, the invention vresides incertain novel features of construction and combination herein described and claimed and shown in 'the drawings through a portion' of a door showing a plan view of our improved lock, the means for locking the latch bolt being in inoperativeposition;' Fig. 2 is a similar view with parts broken away and in section and showing the boltl locked against movement Fig. 3 is a horizontal section ythrough the door and lock, showing more particularly the construction` of the' latter; Fig. 4 isa vertical` transverse sectional view taken on the line 4--4 of Fig. 3; Fig. 5 is avertical section taken on the line 5-5 ofFig.-3; Fig. 6 is f a plan view of the bolt; and Fig. 7 is a perspective view of the form of key employedA in connection with'the lock.
`In the accompanying drawings, we have shown' our invention as applied to 'a' door D in the outer edge of which a suitable bore* fB is formed for its reception. The bore B 'is provided to receive a rectangular sleeve `1 which inclosesa latchA `bolt v2, said latch i bolt being of rectangular formation in cross Doon-LOCK;
Speoication of Letters Patent.
` section and b'eing'provided with ajlateral slot 3 which extends outwardly from its inner end and terminates adjacent a beveled head 4, the latterprojecting beyond a face platef to which the Asleevel is secured and by the door frame F.
As most clearly seen in Fig. 3, ,an antibeing adapted to engage a keeper 7 carried 'friction roller 8 is revolubly mounted within.. the slot 3 near the inner end of the bolt 2, said-roller contacting with the inner walls l Patented Jan. 12, 1915. Application vled June 15, 191,4. Serial No.A 845,205. l i I of the sleeve l and therefore facilitating the lnward and outward movement of the bolt.
Spaced a' suitable distance from the roller 8 and inclos'ed entirely within the slot 3, is an anti-friction roller 9 with which a cam retracting the bolt, said bolt being normally projected 'by means of a coil' spring 11 which has its inner end secured to a pin 12 which projects across the slot 3 near its outer end, said pin also acting as a stop in a manner to appear. The outer end of the spring vl() is adapted to contact for the purpose of 11 is provided with a. hook 13 which is received by a substantially V-shaped slot14` formed in the outer end of the sleeve 1. It
Thegcam l0 is formed integrally with a.,v rectangular operating rod 15, saidrodpassing :slidably through 'registering'openings in the .sleevel and-the adjacent portions of i the door D and carrying, on its opposite ends, operating knobs 16, each of saidknobs comprisingI an inner section 17 f and .an outer section 18, the-sections 17 4including cylindrical portions .in which the oppositeends ends, ofthe bores receiving said rod being enlarged as at 19 for the urpose of receiving the inner end -of aey 20, thelatter beingada'pted .to be passed through a revolubly mounted member 21 which is carried by the'outer section 18, said outer section Aof the rod 15 are rigidly keyed, the outer y loo being secured to the innersection by means n of fastening screws 22-which are preferably v hidden'from view by counter sinking their heads and providing suitable plugs which v lie flush with vthe outer surface'of the'knob.
lAs clearly shown in the drawings -the inner ends of the cylindrical portions of, the knobs vare slidably mounted- `yin guard sleeves 23 45 j means nowto be described., The oppositel Y end portion of the rod 25 from thathaving vwhich,.through the instrumentalityy ofat-- taching plates 24, are rigidly secured to thev door. 5 l' With the parts arranged as heretofore described, it will be seen that .when lateral movement is imparted'to the operating'r'od 15, in the proper direction, theangularly -disposed face of the cam 10, contacting with l the roller 9, will cause the latch bolt 2 to be retracted against the tensionof its spring 11.
i This inward movement ofthe latch bolt is now limited bythe pin 12 which, when the proper amount of inward movement has vbeen imparted to said bolt, contacts with the rod 15. y
As is .usual with devices of this character, it is essential to provide means whereby the latch bolt may be locked against movement,
said means` being here shown in the form of a rectangular locking rod 25, said ro'd being slidably mounted in a rectangular guideway 26 which is formed in the upper side of the rod 15; The locking rod 2 5 is provided, at each end, with a recess 27 in which a suitable-projection 28, formed on the key 20,- is adapted to be forced', thereby allowing said operating rod to be shifted within the guideway 26, this .shifting movement causing a stop 29, rising rigidly from the rod to engage or-disengage a notch which is formed in one of the upper edges of the boa 2. n win ums be Seen that when said stop 29 is engaged with the notch 30, the bolt' 2 will be locked against inward 4movement. It will be further seen that when said locking bar 25 v'is shifted to disengage" the stop 29 from the notch 30, the bolt 2 is free to move inwardly when the rod 15 is moved in the proper direction.
By coming in contact with the inner wall of the notch 30, the stop 29 is limited against movement in one direction and thereby the locking rod is limited in its movement. In order to prevent excessive movement of said rod in the opposite direction, we provide the 'stop 29, is provided with a depending stop 29:L which is adapted to slide inwardly i in a notch 30a which is formed inthe lower side ofthe bar 15 and which communicates with the groove or guideway '26.' It will thus be seen thatexcessive movement of the rod in the opposite direction, is limited.
For the purpose of preventing casual shifting of the locking bar 25, we provide a stud 31 which is slidably mounted'in a re cess`32, formed in the cam 10 and communieating with the guideway 26, said stud being normally projected by a coil spring 33 interposed between its inner end and the inner4 wall of said opening. As most clearlytseen in lFig. 3, the stud 31 is adapted to .engage either one of a pair of sockets 34 vwhich are formed in the adjacentvside of the locking bar, thereby holding the latter in either one ofitsadjusted positions. I
From the foregoing description, talzen in connection with the accompanying drawings, it will be seen that we have produced an extremely simple lock and have provided ei'licient and inexpensive means whereby the latch bolt may be locked against movement vand that thepositioning of the pin 12, performing the double function of anchoring the spring 11 and forming a stop foi-.limiting the inward movement ofthe latch bolt 2, simplifies the structure and is a salient feature.
Having thus described our invention, what we claim as new and desire to secure by Letters Patent is 1. In a device o f 4the character described, a latch bolt and a bolt operating rod slidable in intersecting planes, means whereby reslidably supportedby the operating rod and having a stop, and means whereby the locking rod may be moved to position its stop in or out of the path of the stop on the bolt,
,to lock the bolt against inward movement.
3. In-,a device o'f the character described, a latch bolt and an operating rod slidable in intersecting planes, means whereby reciprocation ofthe latter will be`imparted to the former, a stop on the bolt, a locking rod slidable within the operating rod and having a stop, and means whereby the locking rod may be moved to'position its stop in or out ofthe' path of the 'stop on the bolt, to.
lock Ithe bolt against inward movement.
` 4. In a dev-ice of the character described, a latch bolt and an operating rod slidable in intersecting planes, means whereby reciprocation ofthe latter will be imparted to. the former, a stop on the b olt, a guideway on the operating rod, a locking vrod i slidable inthe guidewaygand having a stop,
and means whereby the locking rod may be moved to position its stop in or out of the path of 'the stop onv the bolt, to lock the bolt against inward movement.
5. In a device of the character described, a vlatch bolt and a'longitudinally grooved operating rod slidable in intersecting planes,
`means whereby lreciprocation of the latter will be imparted to the former, a stop on i the bolt, a'locking rod slidable in the groove of the operating rod and having a stop,
von the bolt, a locking rod slidable vinthe groove and contacting with one of the walls of the slot, a stop on the locking rod and means whereby the locking rod ma moved to position its stop in or out o the path of the stop on the bolt, .to lock the bolt t' against inward movement.
7. In a device of the character described, a latch bolt and an operating rod therefor slidable in intersecting planes, a double acting stop on the bolt, a locking rod slidably mounted on lthe operating rod and having a stop,l and means whereby the locking rod may be moved to cause its stopV to contact with said double acting stop whereby movemcnt ot' the bolt land the locking rod is limited.
S. In a device of the character described, a. latch bolt and an operating rod therefor slidable in intersecting planes, a. double acting stop on the bolt, a guideway ,on the operating rod, a locking rod slidable in the guideway and haring a stop coacting with y the double acting stop, a second stop on one end oi the lockingrod and adapted to limit the movement thereofl in one direction, and' means wherebythe locking rod may be moved to cause-lts iirst mentioned stop to contact Withthe double acting 'stop'therebyl 9. In a device of the characterdescribed,
a latch bolt and al longitudinally grooved operating rod slidable in intersecting planes, said operating rod havinga notch in one end and extending outwardly from. its groo\'e a lockinggrod slidable in the groove and .having a stop projecting into the notch, and means whereby the .locking rod may be moved in the groove. l
10. The combination with a latch bolt and an operating rod' slidable .in intersecting planes and means whereby reciprocation of y the latterwill be imparted to the former, of a stop carried by said bolt and movable inwardly and outwardly therewith, a guide carried' by the operating rod, a locking rod slidably and non-rotatably mounted -in said guide, and a stop on said Alocking rod to be positioned in. the inward path of the stop on the bolt .to prevent the retraction oi." the latter.
4 11.^'1`he combination witlra bolt andan -i and outwardly therewith, `a locking rod slidably and non-rotatably mounted in said groove, and a stop on said rod to be positioned in the inward path ofthe stop on the bolt whereby to prevent retraction of the latter.
In testimony whereof we have hereunto ing witnesses.
JAMES WV. CLEMMER. Y ANDREW ROSENDAHL. ALBERT N. HALVORSON. Witnesses:
` A A. T. COLE, BERTHA OLsoN.
set our hands'in presence of .two subscrib.- 75