US398371A - baetlett - Google Patents

Description

(No Model.) 5 SheetsSheet 1.

E. C. BARTLETT.

SEAL LOOK.

No. 398,371. Patented Feb. 26, 1889.

Fz'yi Wit/z eases Eli-aluminuom i e N pnsns, PholwLilhngmphan Washinglufi, u c.

5 Sheets Sheet 3;

(No Model.)

B. G. BARTLETT.

SEAL LOCK.

39 ,371. Patented Feb. 26, 1889 Invantor m'znessesx (No Model.) 7 5 Sheets-Sheet 4.

E. G. BARTLETT.

SEAL LOCK.

N0. 398,371. Patented Feb. 26, 1889.

j ventar 6 M (WSW 1% 007%. M M

'(No Model.) 5 Sheets-Sheet 5.

E. O. BARTLETT.

SEAL LOCK. 398.371. 88

- llllllllil Witnesses Inventor m @Lml. V M w gmwd mw N. PETERS, Phowulhogvh hev. Washinglcn. D. c.

UNITED STATES PATENT OFFICE.

EDWARD C. BARTLETT, OF OMAHA, NEBRASKA, ASSIGNOR TO J OHN L. MCCAGITE, OF SAME PLACE.

SEAL-LOCK.

1 SPECIFICATION forming part of Letters Patent No. 398,371, dated February 26, 1889. Application filed February 10, 1888. Serial No. 263,574. (No model.)

T0 aZZ whom it may concern.-

a citizen of the United States, residing at Omaha, in the county of fl)ouglas and State of Nebraska, have invented certain new and useful Improvementsin Seal-Loeks, of which I script-ion below in connection with. the draw- 3e it known that I, EDWARD (f. BARTLETT,

l l l l l l t the following is a specification, reference being had therein to the accompanying drawings.

In an application heretofore filedby me-to wit, application Serial No. 260,0S7-l have shown and described aseal-lock containingimprovements which I have made in such (1 eviees. Further experience has led me to the devising of important additional improvements, which are herein shown and are below described.

One of the main purposes of the'present mgs.

Figure l is a face view of a portion of the door, and also a portion of the adjacent wall, having my improved locking and sealing mechanism applied thereto, the parts being shown by full lines in the position occupied when the door is locked in place and the ha'sp and seal cover being shown in dotted lines in the open position. liig. 2 is a face j view from the insideof the hasp or latch arm.

Fig. 3 is a face viewof the automatic lock or dog for the hasp, detached. Fig. at is a section "of the seal-holder detached.

shall not only fasten a door, but shall also seal it in such manner that all of the movements or operations, save that of inserting the Q seal into the seal-holder, shall be automatic.

Another purpose is to provide a locking 5 andsealing device of such a nature that the door can move from its original normal position without so varying the relation ofthe hasp to the staple of fixed fastener as to effeet the sealing devicethat is to say, of such nature that the door can drop more or less from its original true position vertically, (it

being well known that such doors as these,-

when subjected to severe strain and usage, are apt to yield downward vertically,) and yet remain operative- I The door in this case can also yield horizontally without affecting the sealing device-that is, can move a limited distance from and toward the staple or fastener without throwing the knife or sealcover out of proper position.

The invention relates, further, to providing the hasp or latch arm with an automatic lock or latch of an improved nature.

The invention also relates to providing a seal-holder with a cover which will be so guided andregnlated in its movements that it shall always tend to take the closed position-that is to say, normally tend to cover the seal-hold er.

The invention also relates to other matters, which will be fully understood from the de- 011' the line y 1 Fig. 2. Fig. is a face view Fig. 6 is asec tion on the line .2 .2 of Fig. 1 on an enlarged scale. Fig. 7 is a section on the line mm, Fig. 1, also enlarged. Fig. 8 is a face view illustrating, by means of full and dotted lines, several of the successive positions occupied by the parts as the door approaches the closed position. Fig. 9 is a face view showing, by full and dotted lines, the several positions occupied by the parts according as the door is higher or lower relatively to the staple or fastener. Fig. 10 is a face view showing, by full and dotted lines, the several posit-ions of the parts according as the door is jarred or jolted from or toward the staple. Fig. 11 is a section transverse to that in Fig. 6, showing the parts in the positions occupied when they are moving to the closed position. Fig. 12 1s a similar section showing them in the position occupied when'opening. Fig. 13 is a face view of a modified form of the device. Figs.

view details of the device in Fig. 13.

In the drawings, the portion of the door shown is represented by A, and a part of the 14,15, 16, 1'7, and 18 show in section and face with means for cutting or marring the seal with a fixed fastener, a, with which the latch is adapted to engage. This fastener may be of any of numerous forms without departing from the essential features of the invention.

The door or sliding part A is provided with a seal-holding device with a cover therefor,

and with means for automatically looking it (the door) to the aforesaid fixed fastener, and these parts are so constructed and related to each other that the seal-cover normally tends to assume the closed position and cover the seal-holder.

The seal-holder, the cover-,and the. knife need not be herein described in detail, inasmuch as they are fully illustrated and de scribed in my aforesaid other application, although there are matters of improvement therein which will be below set forth. As in my earlier construction, the knife is secured w t e ea re n o h said i mate re "c'ted to the swinging latch insuch way that t e knife is caused to mar or cut the seal when thedoor is being opened. Thesealholder and the seal itself are stationarily secured to the door A, while the other parts move relatively thereto; butin this respect there can be an inversionofthe parts, and the-knife can. be made stationary while the seal is carried past it. c v I The seal-cover is indicated. by B it having a. central openingor frame-like part, b b b If, the opening at the center being closed by a glass, 1). v This glass is secured not in the ordinary w aythat is, by cementbut by positive metal fastenings. (Shown at in.) The metal part of the cover has rabbets at m, and after the glass has been inserted the metallic fasteners m are forced into thesaid rabbets, and, if necessary, are secured by solder or in any other equivalent manner. These maybe supplemented, if desired, by cement or oth er suitahle 'materialapplied along the edges of the glass, for th e purpose of making a thoroughlytight joint to prevent the admission of water.

The seal-cover is held in. place by a pivot, 0, about which it can. rock between certain limits. This is effected by means of stops at d d v on the seal-holding plate, they lying in the path of the edge I) and of the flange Z)". When the seal-cover is turned in one direction, the edge I) strikes the stop (I, and when it moves in the other direction the flange 1) strikes the stop (1. The seal-cover is counterweigh'ted by means of the arm B, extending from the pivot C in the direction opposite to said cover. It is either carried out far enough to have its center of gravity sufficiently far from the pivot or it is weighted to an extent sufficient to overcome the weight of the seal-cover.

when theseal-cover is in its outermost position and the stops 1) d are in contact, the center of gravity of the part B is not allowed to reach .the vertical line through the axis about which the parts move. Therefore, as

soon as the hand of the operator is Withdrawn,

the cover innnediately moves back to the closed position. As a result of this construction and arrangement of the parts, the interior of the seal-holder is always protected, and snow, rain, ice, or dirt are not liable to get access, so that the knife and the other parts within can be kept from corrosion.

I prefer to so construct the arm B that it shall not only act as a counter-weight for the seal-cover, but, moreover, so that it shall au- 7 tom atically engage with the fixed fastener and cause the locking of the two parts A A To accomplish this additional purpose, it is pro vided with a hook or catch, B which, as shown, is of the form of an elongated backward and downward extending hook. The forward edge, if, is shaped to act as a cam, and when the door is pushed toward the wall A the catch is thrown up as soon'as said edge I)? impinges upon the fastener a. The other sideof the hook has an edge, also inclined, so that it shall effectually engage with the fastener a.

On reference to Fig. 8 the movements of the hasp and the other parts and theirrelative positions at different times will bereadily understood. The full lines indicatethe position of thewall, the door, shame latch as the door is moving toward the fastener, and the dottedlines indicate the successive positions assumed bythelatch after it strikes the fastener. An automatic catch or hook of this character automatically elevated and carried down by gravity can be alone depended on under many circumstances; but on account of the situation of the seal-cover relatively to the hook part -that is to say, its situation on the opposite side of the pivotI prefer to coinbine with the hook a positiye' fastener. may be of the form shown in my other 'afora said application; but I have made improvements thereon which are herein shown. The fastener consists, mainly, of a pivoted weighted dog or catch, E, which is secured to the rear or inner face of the part B. It has a curved or recessed edge, e, and an edge, e which normally lies inclined to the path of the dog as the hook passesinto the fixed staple or fastener a. When this edge e strikes against the leg of the fastener, the dog is moved into the position shown in dotted lines, and continues moving away from its normal position until the nose at 6 passes the leg of the staple or fastener a, after whichit (the dog) drops into the position shown byfulllin es in Fig. 1. Then the curved edge 6 lies under the edge of the staple or fastener, the nose 6 swi nging through a relativelylarge are. At the nose there is a comparatively sharp upward turn given to the engaging-edge, as shown at e. The dowir ward-projecting part of the hook or cate'h B' is somewhat narrower than the opening in the staple or fastenera, so that room is allowed between it and the legs of the latter fora play of the door towardand from the staple or fastener a without having any severe strains exerted upon the latch and sealing devices.

This

' the staple.

Moreover, there is allowed a similar open space above the staple or fastener a, at B when the latch is in the initial normal position, so that there can be also a vertical play of the door without any danger of blows or shocks being imparted to the latch-arm by its impinging upon the staple or fastener a. The extent of this vertical play, and also of the horizontal play of the door, can be as great as may be desired, slight variation in the dimensions and conformations of the essential parts be ing all that is necessary to attain the end de sired, the principle of operation remaining the same as that of the devices shown in the drawings. In order to permit the said free space above the staple or fastener, the whole of the part B is shown as being carried up somewhat; but instead of this it may be straight and have a suitable recess formed in its under side. Notwithstanding the movements of the door and of the hasp that are thus allowed relatively to the staple or fastener, the dog E is always in engagement with The edge e is carried inward far enough to have the nose 6 lie adjacent to the inner leg of the staple when the door is in the perfectlyclosed position, and the-edges e c are so shaped, and the dog, as a whole, is so pivoted relatively to the pivot C, that one part or another of the edge e 2 shall positively engage with said leg and prevent an upward escape of the hasp.

In Fig. 9 the full lines illustrate what is referred to as the initial normal position of the hasp relatively to the staple, and the dotted lines indicate the position which the former can assume under an extreme vertical displacement of the door. In Fig. 10 the' full lines indicate the same initial position, and the dotted lines indicate the positions occupied under an extreme horizontal displacement, and from a comparison of these figures it will be seen that the dog always remains in such relation to the leg of the staple as to prevent utnvard displacenien t. The edge e of the .dog is an are, or approxin'iatcs an arc, strncl: from the pivot c, which holds the dog. The hook B of course, swings about thepivot (l, which, it will be seen, is somewhat remote from the pivot e. As a result, and notwithstanding the fact that the edge e of the dog is apparently inclined, this edge is positively locked against the staple whenever the hook. attempts to swing up about the center at (T.

The intermediate dotted lines in Fig. 1- indicate the positions of the parts when the hook is dropping down and the dog E is being pushed forwanl by reason of its inclined edge e striking the leg of ihe staple.

In my said earlierappl ication there is shown a locking-dog having a convex edge, and hinged below said edge. \Vhile such a construction possesses some advantages, 1, for some reasons, prefer to employ a downwardhanging catch or dog with a concave lockingcdge, and yet do not limit all of the features of this part of the device to the exact position shown for the hinge or to the exact conformation of the engaging-edge. The expanded part at 6 serves as a weight to allow the dog to tend to assume the proper position under the action of gravity. Moreover, I prefer to pivot the dog or catch E to the hasp at a point above the fixed staple or fastener a; but in all of these respects there maybe variation without departing from this part of the invention. Another improvement in this part of the device is the shield or cover F, extending inward from the inner side of the hook and lying above and around the locking-dog E. It ex- .cludes water, snow, ice, and dirt, and insures that the lock shall always be operative. This construction has the same advantage as my earlier one over previous locks, which require the presence of springs to make them operative. The springs which have been in use are liable to not only become rusty and impaired by the ordinary conditions to which they are subj ect-ed, but are especially disadvantageous when subjected to severe cold, as they are then'easily broken. No springs are employed atany point in my mechanism. I

The parts B B herein are formed integral, and may be regarded as more or less similar to an ordinary hasp or latch-bar, especially as concerns the arm B, the portion at B constituting a heel-extension for the purpose of providing a cover for the seal-holder, and many of the features of my invention can he applied to the ordinary hasps or latches.

The parts B B ,.considered in relation to the seal-cover, constitute a weighted carriertherefor; but, as concerns the movements of the cover, any suitable weighted carrier can be combined with it if the parts are properly arrangell to cause said cover to normally tend keep the closed position at all times.

tofore ljhave had the knife so constructed that it was HPOQSSRTy to form a recess or small chamber in the cover to receive the shoulder when the knife swings upward and inward. In the present easel obviate the formation of such a chamber by forming the top edge of the knife in two parts,g g-thatis to say, the corners that would otherwise be present are removed. As a result theknifc is allowed to rock. sufiiciently, but is stopped before the point of it is carried beyond the desired line in either direction.

By reference to Figs. 11. and 12 it will be seen that the knife is related to the seal, and that the latter is supported in the receptacle in substantially the same way as in the said earlier constructimi. There is a knifeway at (Z with stops on each side thereof at d, which prevent the seal from yielding downward too far, although it can yield to some extent by rcason of the fact that these stops are at a somewhat lower point than is the support at cl for the edges of the seal. The retainer for the face of the seal is illustrated at H.- In this construction a novel seal-passage is provided of such nature that the seal can be flThe knife G is of an improved'form. Here- IIO readily introduced by directly passing it under the retainer H. The passage is formed by removing a portion of the side at d, or forming a slot therein on a line near or below 5 the retainer II, there being walls d at one side and d on the other of the seal-receptacle to hold the seal properly. The side wall, d of the seal-cover is carried in far enough to completely close the aforesaid opening, so that not only is the card or seal held properly in place in the holder, but tampering therewith is prevented, as no access can be had after the cover has been brought to place. i I have above stated that under most circumstances the parts B B are so constructed and so related to the stops Z) and d that the center of gravity of the part B is never allowed to reach the vertical line through the 'axis of the pivot C. There are some circum- 2o stances under which I desire to permit this center of gravity to rest upon said vertical line or at a point immediately adjacent to it,

so that the hasp can be held in a vertical position, but in unstable equilibrium. This is shown in Fig. 13.

In loading some materials it is desirable to remove the parts B B entirely from the doorway and avoid their projecting outward, but at the'saine time have them so held that as 0 soon as any decided movementis given to the door they shall fall. Therefore I construct some of my devices with stops at points other than those shown in the above-described fig ures.

By reference to Fig. 13- it will be seen that the stop is removable, it consisting of a set screw, (1 which can be inserted into one or the other of a series of threaded apertures, said stop corresponding to that at d in Fig. 40 5, and others, so far as concerns the limiting of the movement of the hasp. hen in the aperture at 12, it acts to stop the hasp short of the central vertical line. hen inserted at a, it permits the hasp to pass the said line a short distance and then stop it. This figure and Figs. 14 i0 18 illustrate a re-enforcement for the pivot-bolt C. O O are flanges cast with or secured to the baseplate; or they may be secured directly to the door. They have flaring or partial conesurfaces at 00. The hasp has a boss or enlargement, P, the face 13 of which is fitted to the face 0 of the aforesaid plate. This boss is of the conformation of part of a frustum of a cone, the conical surface corresponding to, the surface at 0 and fitting beneath the same. 'VVhen the hasp is being inserted into place, it is passed longitudinally in such way that the boss P is introduced between the flanges O O, and after the two parts have been centered together the hasp is turned to'bring the parts at 19 under the flanges 0. Then the bolt 0 is inserted and secured to the wall of the car. The flanges O O and the conical boss on the hasp act to strongly brace the hasp and strengthen the bolt. Any longitudinal or lateral strains upon or movements of the door rather than away from it.

hasp result in its tending to move toward the Moreover, the seal-cover and the knife are held more firmly in proper position relatively to the seal-receptacle.

I herein refer to a hasp or latch or latcharm, meaning thereby to be understood as referring to the part B, with its hook and a sufficient part of that portion which lies on the other side of the pivot to make the part B operative as a latch or hasp. I also refer to a seal-receptacle, by which I mean that part of the device into which the seal of whatever'nature is initially inserted, and also a cover 'or seal-cover, meaning in the particular construction shown the part generally indicated by B. The sealing device therefor comprises two parts, of which one rocks'about a pivot relatively to the other, such sealing devices, broadly considered, having been con-. structed in several ways, the seal in some cases being carried by the stationary part and in others by the movable part, and. so far as some of the features of the present inven tion are concernedv it is immaterial whether the seal-receptacle be the movable portion of the device or the seal-cover or knife, or whether the seal-receptacle and cover be both stationary and the knife alone'be caused to rock and attached to the weighted portion.

Considering the seal-cover .by itself it will be seen that its peculiar features of operation do not depend upon the fact that the arm B is used to counterweight it, for such counterweighting can be effected in other ways without affecting this part of the invention.

\Vhat I claim is 1. In a sealing device having a seal-cutting knife, a latch-bar provided with an automatically-operating catch, whereby the latch-bar engages with a-fiXed-fastener when the door is being moved toward said fastener, substantially as set forth.

2. The latch-bar having a movable knife and an automatic catch adapted to engage with a fixed fastener and bear against. thesaid fastener on lines transverse to the path of the knife, whereby said latch-bar automatically engages with said fixed fastener when moving toward it, and the knife must be moved automatically at the time when the latch-bar is being released from the fixed fastener, substantially as set forth.

I 3. In a sealing device, a latch-bar having a movable seal-cover connected with it, and an automatic catch whereby the bar engages with a fixed fastener when it is being moved toward the latter, substantially as described.

4. The latch-bar adapted to be engaged with a fixed fastener and having a seal-cover; in combination with a seal-holder, a stop for the latch-bar when the seal-cover is over the sealholder, and a stop which prevents the latchbar from carrying the seal-cover beyond a limited distance from the seal-holder, where'- by the latch-bar always tends to hold the cover over the seal, substantially as described.

5. The pivoted seal-cover, the weighted arm for said cover, and the stops at the ends of the path of the seal-cover, whereby the weighted arm always tends to hold the cover over the seal-receptacle, substantially as set forth.

ii. The pivoted latch-bar having the sealcover at one side of its pivot and the catch or look for said latch-bar arranged on the other side of the pivot, substantially as set forth,to act as a weight to hold the cover on the sealholder, substantially as described.

7. The pivoted arm having the seal-co ver on one side of its pivot and having the hook B said hook and arm being of greater weight than the seal-cover, in combination with the stops for the arm and seal-cover situated in the path of their travel, substantially as set forth.

8. The combination, with the latch-arm hav: ing the hook B formed with the cam b and having the seal-cover secured thereto, of the fixed fastener a, arranged in the path of the cam b substantially as set forth.

9. The combination, with the seal-holder formed with the stop. (1 and the stop cl, of the seal-cover and the weighted carrier for said cover, said cover and carrier engaging with the stop (Z when the cover is over the seal-holder and engaging with the stop d before the center of gravity of the carrier reaches the vertical line passing through the axis about which the seal-cover and carrier move, substantially as set forth.

10. In a sealing device, the combination, with the seal-holder having the inclosingwalls (Z 61 and the retainer H, bearing against the outer surface of the seal, of the seal-passage at (1, extended to or below the said retainer II, substantially as set forth.

11. In a scaling device, the combination, with the latch-bar, of the gravity-catch having a concave edge adjacent to the staple or fastener, substantially as set forth.

12. The combination, with the latch-bar, of the pivoted gravity-catch suspended from a pivot above the fastener, with which it cugages, substantially as set forth.

13. In asealing device comprising two parts, of which one rocks relatively to the other, the combination;- with the rockiug part and the fixed fastener 61, of a gravity-catch suspended below a pivot other than the pivot about which moves the said rocking part-of the sealing device, substantially as described.

It. The combination of the seal-receptacle and the cover, of which parts one rocks relatively to the other about a pivot, and a fixed fastener for said part, of a gravity-catch pivotally connected to the said rocking part on an axial line nearer to the fixed fastener than the axial line of the first aforesaid pivot, substantially as described.

15. The combination, with the sealing de vice and the hasp having a pivot, (hand a hook at its outer end, of the gravity-catch pivoted to the hasp between the hasp-pivot and the outer end of the hook, substantially as set forth. V

16. The combination, with the pivoted hasp or latch arm having a catch, 13 to bear against a fixed fastener in one direction, of a movable catch, E, secured to the hasp and bearing against the fixed fastener in a direction transverse to that aforesaid, substantially as set forth.

17. The combination, with the pivotedhasp having a catch, B adapted to engage with a fixed fastener, of a catch, E, having an inclined edge adapted to strike the fixed fastener to move the catch while the hasp approaches said fastener, substantially asset forth.

18. The combination, with the hasp or latch arm, of a catch, E, having the inclined edge e and the recessed edge 6", arranged substantially as set forth.

19. The combination, with the fixed fastener and sealing devices, of the hasp or arm, adapted when closed to lie above and out of contact with the fixed fastener, substantially as set forth.

20. The cmnbination, with the seal-holder, the glass cover, and the support for the glass, of the metal fasteners m m, secured to the glass-support and engaging with the edges of the glass, substantially as set forth.

21. The combination, with the hasp and its pivot, of the re-enforcing dovetailed or wedgeshaped flanges, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

EDIVARD C. BARTLETT. Witnesses:

B. W. Sonnnns, H. H. Bass.

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