US 1368141 A
Description (OCR text may contain errors)
'0. 1. HAGSTROM.
CONCEAIED FRENCH CASEMENT LOCK.
APPLICATION FILED JUNE 14, |919.
1,368Q141, Patented Feb. s, 1921.
3 SHEETSSHEET l.
wwf/WOR MD u i 4mm/frs C. j. HAGSTRUM.
CONCEALED FRENCH CASEMENT I.OCK.
APPLlcATmN FILED JUNE 14. 1919.
Patented Feb. 8, 1921. Jfz'g-:Q
g2g@ nro/Mfrs C. I. HAGSTROM.
coNcEALEn FRENCH cAsEMENT LocK.
APPLICATION FILED JUNE I4. I9I9.
1,868,141. Patented Feb. s, 1921.
3 SHEETS-SHEET 3.
IN VEN TOR /65j W- ma/mm ATTUHNEYS UNITED STATES CARI. JOHN HAGSTRQM, or GLEN covn, NEWYORK. i
PATENT oFFi coNcEALEn rnnivcii-ensniiinni Lock.`
i Application led J une "14,
To all 'LU/wm t 'may concern:
Be it known that I, CARL JoHNfHAd srnoii,y av citizen of the United States, and a resident of Glen Cove,`inkthe county of Nassau. and yState of New York, have in- `vented a new and Improved Concealed relates to devices7 parts of which are car-V ried by the meeting doors or windows, and while vI shall refer for conveniencel hereinafter to a door I wish to be undeistoodas covering generically any analogous device on or with which my improvement is adapt ed to be used, tliepart carried by one door being adapted to be operatedl either by a key or a knob, andthe partscarried by the uother door being adapted to beoperated Vby the insertion of a thumb or. finger through the striking edge of the latter after the vfirst vdoor is opened.
With the foregoing` 'and' other objects inV viewtheiiivention consists in the arrangement and combination of partshereinafter described and claimed, and `while the invention is not restricted to the exact de-V tails of construction ldisclosed or suggested herein7 stillior the purpose of illustrating a practical embodiment` thereof reference is had to the accompanying. drawings7 Vin which like reference characters designate the same parts in the several views, and in Y ,which- F igiire 1 is an` outsideV elevation` of Vthe two main coperating parts of the improved lock7 one portion of one of the casings being removed and:` the upward and downward rod connections being broken away.
Fig. 2 is a view -similar to the left side of Fig. 1 4but showing a changed position of, the bolt and,l parts associated therewith.V
Fig-.f3 is atransverse*,sectioinon the line' 3f-3 ofFigJ. I
Specification of Lcttersiatent.
191e. seriai No. 304,120.
ig. is an elevation of the same parts` as in Fig. 2 but indicatingthe opposite side` or the lock and also indicating. the face of.
the opposite casing removedl -"a a f n c i u c Fig. 5 is a view similar to the right side Patented Feb. 8, `1.921. n
of Fig. t and indicating the opening operation bythe thumb. Fig. 6 is a plan View of Vthe lock shown n )giga with parts in section on the line Fig. Tis a 'fragmentary view of one of the catches at the top offeither door. Fig. 8 is a view of the same at-right anglesto Figa?.
Fig.` is a plan view of the saine. Fig.` 10 is 'an end viewy of the rod connecting knuckles. y
Fig'. 11`fis a vertical sectional view of the casingplate presumed to belremoved from Fig.2.` `V
'Fig 12 isja plan viewwor1 the catch for the lower `end of the door.
Fig. 13 is `a verticalsectional view of the]V same on the line 13-13. A l
Fig. 14; isa diagram indicatingithe bot@ toni of a door and the automatic releasing means-for the catch boltindicated in Figs. 12 and 13; and y v Y z Fig. 15 is Vaf view corresponding essentially to Fig. E2,` but indicating a modification" with means'for `pr`eventingthe open-` ing of thelock from' the outside of the door except by the use ofa key.
Referring nowrmore specifically to the drawings, the main views` show two casings.
1Q and 17 adapted to be niortised in oi' otherwise secured to the meeting or strikingedges oftwo cooperating doors. In thefcasingl is litted` a bolt 18 slidable transversely of the casing and adaptedito project beyondthe.,
same for coperation with a'socket: 19` of the other casing, under the force of a springQO` anchored at 21 andbearing in a notch` or groove 22 at the innernend of the 'shank 23. of said hole. The shankl23 maybe madey advantageously otroundmetal having one end tapped intothe inner face `of jthe bolt 18while its other end isturned at right an` gies to thesma'in portion of the shank where` ithas easy rolling bearingat 24 with the* arm` 25'pivotedl at 26 adjacent toone end of the casing. Said arm isprovided adja-` centto its `free endwith a lugQ projecting laterally therefrom and adapted to` strike aga-inst the arm28 of a bell crank 29 pivoted VatVBO. andurged normally in a direction to occupy the position shown in Fig. 1 by virtue of astrong spring 31.
l32 indicates a tumbler having a hub 33 journaled in the face plates 34 and 35 of the the arm 35V in the same direction though around its own center 26. The movement of the arm causes the sliding movement of the bolt 18 inward and therotation of the bell crank 29 toward the right.
The opposite casing 17 is likewise mortised orotherwise secured in or uponl the striking e'dgeof the other door and is provided centrally with a plunger 39 corre! spending in'some respect to the bolt 1 8 in its movements. The plunger is located in the socket 19 of the casing 17 Vand has its active face beveled and concaved at 40 provid; ing an easy thumb hold rfor manipulation thereof inward. v lIhe inner end 'or portion of the plunger isl slotted at 41 fordirect c0- operation with :a lug 42 fixed to the inner surface of the wall 43 while thel main portion of the plunger is-guided between lugs 44 and so confined to movements in right lines transverse of the casing. The beveling ofthe outer. surface of theplunger provides ample clearance for the engagement Vof the outer end Vof the bolt 18 in the socket 19 when the lock is in lnormal holding lposiNV tion. HThe 'beveled face ofthe bolt18 strikesV against a projection45 and more particu-V larly against an anti-friction roller 46 journr naled therein `so that the action-of thelock is .unusually easy. The upper 'e and lower yends of the plunger' consist of horns 47 which when the plunger is forced'inward bear against the arms 48 of bell cranks 4,9 pivoted at 50 1n the casing, such movement beingagainst the force ofthe springs V51 which tendv to hold the parts in the position shown in Fig. 4. The face plate 34 of the casing 16 in addition to the upper and lower flanges is provided with a pair of spaced lugs 34 adapted to straddlethe shank 23 and so cooperate with the front portion of the casing to guide. the bolt and its shankV in itshorizontal reciprocations.
Referring now to Figs. 7 o the type of .catch bolt that I prefer to use at the top of'each door. for .directcoporay tion with. the frame above'the door. Each of these devices comprises a bolt 52 slidable upward through the ,casing 53 under the force of a spring 54 with-inthe casing tend- -ing to causethebeveled end of the bolt to engage in a keeper in thek door frame. The bolt is held from rotationbyv means of a 8 and 9 I show' tion to the main bevel 52 which provides for the automatic snapping of the bolt into place when the door isvbeing closed, is profvided with a slight bevel 52 on the opposite' side to facilitate the opening of the door. To a hook 57 formed on the lower end of the bolt shank I connect a jointed rod 58 the several'portionsof which being connected adjustably as to length by `a turn buckle 59, or its equivalent, while the eX- treme lower endof the rod is connected to one of the knuckles 60.` Each of these knuckles comprises a tongue 61 for connection with a Vbell crank 29 or 49-with a pivot 62` while the body portion of the knuckle is recessed atv63 for the head 64 formed onthe end of the vrodby a'simple liattening of the rod'at 65. This flattened portion of the rod 65 is adapted to slipdirectly'into a narrow neck extension 66 from the socket 63. As shown clearly inFig. 6 the headed end of the rod is held from lateral` displacement or movement in any direction with respect to the knuckle by means 5f the adjacent portion of the casing. Theconnection is easily effected between the rod and the knuckle. W hen Vthe door is being closed the bolts 52 move inward against the springs 54, the loose connection between the hook 57 and the hook 58 of theupper end of the rod permitting free 'movement' fof the bolt whether therrodas a wholeV moves downward or not. The bolts 52 are held normally projected upwardwhether the door is opened or closed byfvirtue of the springs54. o
At the bottom of each door is acatch such Yas vshown in FigsQ1'2, 13 and14, the same 72 formed ,in the side of the bolt.l The force i i of the spring 71 serves to* cause the point of the detent to gripftheV bolt frictionally with` a force superior to the spring 69 so that when the holt-'is lifted by connection there- Y with ofthe rod 73 projecting downward from .the knuckle 7 4Vpivoted at 7 5 tothe tumbler 32 or a similar knuckle7 6 connected to the lower bell crank 49 against 'theforce of the spring 71 the bolt will be heldin its elevated position whenthe door is open or being opened.v .Consequently whenV the door is open there'can be no Contact betweenV the bolt 67 and the floor. The rodsf73'are con-- nected preferably to` the bolts 67 through lost motion'hookssuch asshown at 57 and 58 so that the action of .the'boltsA 67 will upper end of the lever 82 is bent outward Y ment.
and is adapted to strike against an adjustable stop such as a screw 85 fitted in the door jamb. By the adjustment ofthe screw in or out the control of the detent may bev easily and accurately determined irrespective of the tightness or looseness of the door on its hinges. It will be Aunderstood that while the bolt 67 is normally held in the position shown in Fig. 13 when the door is open, when the door is closed the 'ree end of the lever 82 striking against the stop 85 will cause the rod or wire 79 to hold the detent out of frictional contact with the bolt 67 allowing said bolt to snap downward under the force of the spring 69 and into a metallic socket piece 86 fitted in the door sill or the' like.
The construction in Fig. 15 includes practically all of the features of Figs. l and 2, but the casing 16 has a greater extent upward and downward than the casing 16 vfor the accommodation of additional parts. The tumbler 32, hub 33, bolt 18, shank 23, arm 25, bell crank 29 and other associated parts being practically identical with the corresponding parts in the first figures. The knuckles 60 and 74', however, are longer .than the corresponding members aforesaid though their function is the same. 87 indicates a bolt, or its equivalent, slidable vertically within the casing 16 and conlined by a lug 88 or the like from lateral move- This bolt has a lip or lng 89 which is adapted to engage over a lug 27 carried by the arm 25 whereby said arm is held from movement around its pivot 26 and as a con'- r sequence the locking bolts cannot be moved or opened by the means above described until the bolt 87 is released .from the lug 27.
The release of the bolt 87 may be effected in either of two ways as illustrated: First, by the turning of a knob fitted in the square hole 90 of a tumbler 91 in the upper end of the casing, said tumbler having a lug 92 coperating with the bolt in a notch 93 so when the tumbler is turned to the left as Y shown in the ligure the bolt 87 will be lifted. VAdjacent to the lower end of the casing is a slide 94 to which is pivoted a bell crank 95 Jfrom one arm of which a rod 96 extends to the tumbler extension 97. VThe slide 94 is close to a keyhole 98 to which a key may be introduced from the outside of the door, which when turned will cause the slide to move horizontally beneath a rib 99 fixed to the casing. l canse the turning of the bell crank and the This movement of the slide will drawing downward of the rod 96 and openingof the bolt 87.
l.. The herein described French easement lock comprising two coperating casings, one for each of two easement doors, actuating means movable along the central portion of each casing away from the other casing, one being movable by hand from the edge of the door only when the other door is open, a pair of bolts for the top and bottom of each door, operating means in the upper and lower portions of each casing connected to said bolts for moving them toward and from each other simultaneously, and connections between each actuator and the bolt operating means. A
2. In a French easement lock, the combination of a lock casing, a bolt movable hori zontally therein and adapted to project beyond the striking edge of the door, a pivoted tumbler within the casing, an acuator between the tumbler and the bolt and serving to retract the bolt when the tumbler is moved, said actuator being in the form of anV andsaid tumbler whereby when the tnrnblerV is moved to retract the first' mentioned bolt` the bottom bolt will be moved simnltanef ously.
3. In a lock of the cla-ss set forth, a bolt i i for one end of the door, means to withdraw the bolt into the door from engagement with the door frame, means to automatically hold the bolt within the door, the bolt having a longitudinal groove formed along one side thereof, said automatic holding means comprising a spring-pressed detent acting frictionally against said bolt at right angles thereto and projecting into said groove whereby the bolt is held from rotation, and means to automatically vrelease said detent when Vthe door is closed.
4. In a Ldoor lock, the combination ot a casing, a member rotatable therein, means to rotate the member, a bolt at one end of the door and connections between they bolt and said rotatable member serving to cause movement of the bolt in one direction when the rotatable member is moved, said connections including a knuckle pivoted to said rotatable member and having in its opposite end a recess with a restricted opening lead ing therefrom, said connections VVincluding also .a rod having a head at its end and a flat portion' adjacent thereto, the fiat portion'being adapted to slip into the narrow opening of the knuckle while the end ofthe rod constitutes. a head tted in the mainv opening of the member.