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Nov. 22, 1938. w. c. DEVEREAUX“ 2,137,271‘ COMBINATION DOVETAIL AND LOCK KEEPER Filed Aug. 30, 1935 . INVENTOR. ?/zllz'am C.’ Jere/e470,: fat“ ATTORNEYS. 9/ 2,137,271 Patented Nev. 22, 1938 N'T7v.0‘FiFicE ' 1* if a . - r, ‘2,137,271 _ . V . .. :, ‘COMBINATION ,DOVETAIL‘ ANnLocK ‘ -. I r _ 5 ,KEEPER ._ A Applicationihugusttll,1'93'5,SeriallNo.138,583 A . I, ‘ (Cl. Iii-78,5.) ‘ -‘-"‘-"I'he present invention relates to doordovetails and door lock keepers, and a‘principal‘ object‘ thereof is the combination in a single ‘structure of 'adovetail and lock keeper.- ‘ .5 < 7 William C. ‘Devcreauzr.'Detr'oitily?c?l, ‘' ~ it V . Further objects of the ‘present invention in cludethe provision of a combination door dove tailand door lock keeper arranged’ to positively prevent relative vertical movement between a die cast lock-keeper and blocks, and pressed metal cooperating‘ dovetail'parts. w ' ' l . r I ' . .7 Other objects ~and:advantages of the present invention appear in'the following description and ini‘the appended claim.: ‘ In thgaccompanying drawing, which illus trates a preferred embodiment of the present in vention ‘and ‘throughout the several ‘views. of door and a supporting body; which will guide the ~ which corresponding reference characters desig 10 doorjinto locking position and securely hold it from rattling when‘closed in such position; which is constructed entirely of non-perishable parts, thus insuringa long and efficient life; which is of . relatively narrow dimensions thus adapting it for 15. use upon a relatively thin door post; and in which afminimum of resistance is offered by the unit to the. closing and opening movements of the door. ‘ ‘.It, is a'furtherobject of the'pre‘sent invention ; 2,0 to provide a combined door dovetail and door lock ' keeper comprising generally a door ‘lock keeper and a. cooperating dovetail member," and a con nate corresponding partsr mobile -door and body; Fig > the lineal-4 ‘- ‘ i I ' of Fig. 3;- " _ ' I ' ' @9 7 Fig.5 is :a view in elevation, taken along the line~5-—5,, of 'Fig. 4; and " ' . I Fig. 6 is a fragmentary view in horizontal sec tion taken ‘along theline 6-—6 of Fig. 4. , Consideringthe invention ‘in detail, and re 25 ferring to the drawing, the. lock keeper if], the outer surface of whichis formed so as to pro door lockkeeper constitutes the wedge member of vide the two spaced bolt engaging faces I2 and I4, and the intermediate sloping surfaces l6 ‘and i8, is rigidly secured to the body frame mem a dovetail, and one or more non-resilientbut slid ably supported blocks are interposed between the 39 ' bers 22 and 24 ‘which define a door post of the ' ‘ It is a further object of the present invention to provide a construction as above stated in illustrative automobile body 26, by studs 20 which are threaded into bosses 2|. The heads of the which the distance traveled by the blocks is less than the distance traveled by the entering ilock keeper during a closing movement of the door. ._ below the surface of thekeeper Ii). As will be understood, keeper‘ i0 cooperates" with a bolt 28, studs 20, as best seen in Fig. 4, are countersunk as, It‘ is further. object of the present invention whichmay be associatedwith any. conventional type of door lock, and which bears against face to ‘provide a’, construction as above’ stated, in, ‘I2 of‘ keeper 10, when the door is ‘in a closed which the block engaging walls of the keeper are positiornand similarly bears against the keeper 40 rearwardly convergent and in which the block orblocks are complementarily formed. It is a further object of the present invention to provide a construction as above stated, in which the walls of the female dovetail member‘ ‘are 45 rearwardly convergent and in which the blocks are .complementarily formed. ' 1 ‘ 1It is a furthefobject of the present invention tor'provide a construction -as' ‘above stated Iin 50 which the blocks are resiliently‘ and slidably'supl ' ' ; Fig. 4 isa View in vertical sectiontaken along to provide a structure as last stated in which the 40 ' along the line 2-4’ of Fig. l, and illustrating the iii nongresilient but slidably- supported blocks. > " relation of the parts in the doorclosed position; Fig. 3 is a view taken along the line 3-3 of 25 4 It_..is a further object ofrthe present invention ber. 5:0 1 Fig. 2 is a view in horizontal section taken nection between them, comprising _. one or more 30 keeper and a cooperating female dovetail mem-‘ ‘ Fig. 1 is a diagrammatic view illustrating the application of the present invention to an auto ported upon the keeper. I It is a furtherobject of thevpresent invention ‘to provide a combined door dovetail anddoor lock keeper which may be economically manu factured ‘and readily assembled. and comprises ' face M to provide. a conventional safety catch for the doorQ-During ‘a closing ,movement of the door, as will be understood, bolt.28 is cam med inwardly by the sloping surfaces It! and I6,,and is normally. urged to the position illus trated in‘ Fig. 2 by suitable spring mechanism (notjshown). .. > ‘Aspreviously mentioned, lock keeper It also acts as_a male dovetail member and for'this purpose, the lateralfaccs 30 and 32 thereof are each formed substantially perpendicularly to the supporting isurfacel'for keeper I0, and are con vergent in the ‘direction ofthe-closing movement ofv the door. . The female member jofcthe dovetailcomprises 2 2,137,271 the metal stamping 36. Dovetail 36 is formed with a substantially plane mid-section 38 and the two oifset end sections 40. The mid-section 38 is channel shaped in cross section and each of the end sections are generally cup shaped in cross section and have the substantially linear inner faces 42, which are convergent from right to left as viewed in Fig. 3. Dovetail 36 is rigidly supported upon the panel 44Lwhich forms a part blocks 56 is supported for sliding movement parallel to the rearwardly convergent faces 30 of lock keeper Ill between the above mentioned limits, and is supported in proper position trans versely of lock keeper H] by the supporting stamp ing 62 and the legs 15 of the supporting stamping 64. The compression springs 8|, and the tabs 66 associated with support 62, also serve to support blocks 56 and maintain the curved faces 60 there of in engagement with the cooperating leg sec 10 tions 14 of the support 64. 10 of the door 46 by the studs 48, the’ heads of which are countersunk in openings 50 struck in the surface of the mid portion 38, and the shanks With reference to the operation of the unit as a of which are threadably received in bosses 52 whole, a closing movement of door 46 causes dove formed in panel 44. It will be evident, accord 15 ingly, that dovetail 36 forms a generally U ‘ tail 36 to move to the right with respect to lock shaped. housing, the legs of which are represented keeper l6 and blocks 56, as viewed in Fig. 3, in 15 by surfaces 42, within which the male member whichthese parts are illustrated in the ?nal or completely closed position. During the course of or lock keeper Ill and the two cooperating slid ing blocks 56 are received. 20 , Each of the blocks 56, which are positioned respectively on opposite sides‘of keeper l6, and. form a connection between keeper l0 and dove tail 86, are generally rectangular in cross section, this movement, as previously mentioned, the lock bolt 28 isfcammed inwardly along the lock keeper surfaces l8 and I6 respectively until it ?nally 20 passes over the bolt engaging face l2 and ?nally occupies the position shown in Fig. 2. The rela as seen in Fig. 4. The outer surface 58 of each tion of these parts is such that during the time block 56 is complementaryito and disposed for that bolt 28 is in engagement with the sloping engagement by the faces 42 of dovetail 36. The face l8 of lock keeper ID, the faces 42 of the dove 25 inner surfaces 60 of the blocks 56 are generally tail 36 engage the cooperating outer surfaces 58 of complementary to the convergent faces 32 of lock the slidable blocks 56, which at the time are biased keeper I0, but are curved somewhat, to permit to their extreme left hand positions (Fig. 6) by 80 proper action of the assembly even though the i the associated springs 8|. Further closing move door and body are slightly out of alignment, as ment of the door and of dovetail 36 is accom 30 panied by a corresponding inward movement of described in more detail hereinafter. ' The blocks 56 are each supported upon, but in the blocks 56, caused by the engagement just sliding relation to, lock keeper H) by the pair of mentioned. Because of the converging character stamped metal elements 62 and 64. Support 62 is of faces 36 of lock keeper I6, however, the inward of a shape corresponding generally to that of lock movement of block 56 is less than the movement 35 of dovetail 36. With this arrangement, accord keeper l0, and is provided with the oppositely dis posed, upwardly struck lugs 66, which cooperate ingly, and depending upon the degree of converg with corresponding recesses 68 in each of the ency of the faces 30, a relatively large closing blocks 56, to guide the movements of the latter. movement of dovetail 36 may be accompanied by 40 It will be noted that a recess 68 is cut in each side a relatively small movement of the blocks 56. The springs 8| oppose the forward motion of of each block 56, so that the blocks are inter the blocks 56 and maintain the faces 58 and 66 changeable. The supporting stamping 64 is formed to de?ne thereof continuously in engagement with the co 45 a linear mid section '12, the legs 14, and the end operating faces 42 and 14. Throughout the clos ing movement, accordingly, the door 46 is contin-_ 45 sections 15. The legs 14 and end sections 15 sup port two of the faces of each of the blocks 56. uously' supported in a predetermined vertical The spacing between the legs 14 corresponds to position with respect to the door post 24 by the the width of lock keeper [0, and the faces 14 are continuous rigid support afforded by dovetail 36, so complementary to the faces 30 32 of keeper l0. Jolocks 56 and lock keeper Ill. The dovetail con Portions 76 of supporting member 64 are also bent around to form an enclosure for one end of each of the blocks 56, as best seen in Fig. 6. Each of the supports 62 and 64 are rigidly secured to 55 the back of lock keeper ID by the previously men tioned studs 26, and lie behind the shoulder 18 formed at the edge of lock keeper In as best seen in Figs. 2 and 5. Each of the blocks 56 is provided with a bore 80 86, which receives and acts as a seat for one end of an associated compression spring 8|, the other end of which is seated upon a tab 84 struck in nection automatically accommodates itself to wearing in of the parts, since the only effect of such wear is to modify the point in the closing movement at which the initial engagement of the parts occur. Thereafter, the action is unchanged by such wear. The operation of the unit is also - unaifected by changes in the vertical positioning between the door 46 and the post 24. Any such change, it will be noted, for example a raising of door 46 with respect to post 24, simply advances the point in the closing movement at which the lower block 56 is engaged, and postpones the point in the closing movement at which the upper block 56 is engaged. After such engagement, however, the operation is as above described. The curved surfaces 60 of block 56 also accommodate the unit and provide correct operation even though the 56 to the position illustrated in Fig. 6, in which 1 door becomes twisted with respect to post 24, thus changing the angle between faces 42' of dovetail position, each tab 66 engages one end of the guid 70 ing recess 68 formed in the corresponding block. 36 and the faces 30 of lock keeper l0. Any such The other extreme position of each block 56, as twisting results merely in a partial rotation of the 70 blocks 56 on their faces 60 with respect to the will be understood, is determined by the engage supporting surfaces 14. ment of tabs 66 with the other end of the corre wardly from the upwardly struck lugs 70 at the rear edge of the support 62. Tabs 16, also pass through corresponding openings in support 64 to retain the two stampings in assembled relation. As will be understood, the springs 8| bias blocks In the practice of the illustrated embodiment of ' the present invention, the unit has been found to It will be seen, accordingly, that each of the ' offer a minimum of resistance to a closing and 75 sponding recesses 68. 75 2,137,271 ' opening movement. The construction of the blocks 56 and of the supporting faces therefor is - 3 It will be evident that various changes may be made'in the ‘form, number and arrangement of parts, and accordingly, the described embodiment, while representing a preferred-form’ of the inven such that these parts move freely. with respect to the other. If desired, also, an anti-friction bear ing relation between the blocks and the cooperat ' tion, is to be regarded in an illustrative and not in a limiting sense. ing surfaces of the parts may be provided, as dis closed in the Ball Patent No. 1,842,373,‘ granted‘ , ' What is claimed is: A dovetail wedge member comprising a combi- , January 26, 1932, in which the blocks are provided ' nation, a base member, a second member secured with rollers, which r011, along the cooperating‘ to said'base member and formed to de?ne there 10 10 with a pair of recesses arranged in back-to-back It will be evident from the foregoing that the combined dovetail and lock keeper of the present relation and the bases of which recesses constitute invention provides, in a single unit, a device for oppositely disposed sliding surfaces, a slotted effecting cooperation with the usualsautomobile ' block individual to each of said surfaces and dis 15 posed to slidetherealong, and means including a 15 door lock, and a device to positively and reliably prevent rattling of the door and prevent vertical tongue struck out of said base member individual surfaces. ' _ movement thereof with respect to the supporting ' to each block and disposed to enter vthe slot there post. The illustrated unit, being formed entirely of to retain said blocks within said recesses. of relatively simple die castings, and steel stamp- ' ' 20 ings, may be economically manufactured.‘ The’ relatively’ few parts promote'ready» assembly of. the unit. WILLIAM c. DEVEREAUX.