US1994928A - Cylinder padlock - Google Patents

Description

Patented Mar. 19, 1935 UNITED STATES PATENT OFFICE; 3 1,994,928 I V r -CYLIND-ER PADLOCK Harry E. Soref, Milwaukee, Wis. Application July 29, 1932, SerialNo. 626,125-

4 Claims.

cylinder and a housing for the same, the housing embodying certain novel features of construction which co-operate with fixed structural features of the casing, so that the unit may readily and accurately be positioned within the casing, and then permanently secured in position. i

The structural details will now be described, and the novelty residing in the same will be pointed out in the appended claims.

In the accompanying drawing:

Figure 1 is a viewin side elevation of a padlock constructed in accordance with my invention.

Fig. 2 is an edge view, looking from the right in Fig. 1, and broken out in part, to show certain 1 details of construction.

Fig. 3 is a view similar to Fig. 1, with the near section of the casing removed, so as to show the arrangement of the parts in their respective po-'- sitions, and showing also the locking elements in closed position;

Fig. 4 is a like view, showing the locking elements as having been operated to release the shackle.

Fig. 5 is a perspective view of the housing which receives and positions the cylinder; and

Fig. 6 is a plan view of the housing, with cylinder, shown partly in full lines and partly in dotted lines, as positioned therein.

In the drawing, I have shown the lock casing as formed of two stamped half shell members 10 and 11, preferably of the same depth, adapted to be brought together with the edges of their flanges in registry, and permanently secured in that relation, so as to form a sealed enclosure for the elements of the locking mechanism. At its upper edge, the casing is provided in the meeting line of the half shells with spaced perforations 12 and 13, for the reception of the U-shaped shackle 14. The lower edge of the lock, in the same meeting line, is provided with a central perforation 15, for the accommodation of the lower end of the cylinder 16.

Disposed interiorly of the-lock casing, are fixed vertical partitions 17 and 18, the edges of which are provided with opposite projections, two of which are indicated 19 and 20, which projections enter perforations inthe half shells 10 and 11, and are spread as rivets to permanently unite the half shells, all as will be understood. A horizontal partition 21, connected to the half shell membersin the same manner, is arranged in the space between the partition 17 and the adjacent wall of the casing. In line with the partition 21, the vertical-partition 17 is perforated to receive a projection 22, extending inwardly from the partition 21. 'The parti'tion 21 is thus firmly supported by the projections on its opposite edges, which enter perforations in the half shells and" are spread as rivets, and by the inward projection 22. A horizontal shelf 23, having projections on its edges for riveting purposes, rests upon the upper end of the partition 18. The functions of the'shelf 23 will later be described.

The longer leg of the U-shaped shackle 14, forming the post 24, is projected through the opening 12 in the top of the casing, and entered in an aligned perforation in the'horizontal partition or step 21, so that the said post isguided for-longitudinal and rotary motions. Inside of the lock casing, the post 24 is proivded with a projecting annular rib or flange 25, the purpose of which is torestrict the outward movement of the post 24' in its guides, when projected by the expansive action-of a spring 26, which encircles the said post and .is" confined betweenthe step 251 and the ring 25. i

A sliding bolt: 2? of angular shape, is disposed with its upper branch in the space between the top wall, of the casing and the shelf 23, and is adapted to have longitudinal reciprocation in the said space. An expansion spring 28 bears at one end against the vertical branch of the bolt 27, and at its other against the partition 17. The partition 17 may be indented at one side, so as to produce on the other side an embossment which will enter the coil of the spring 28, so as to hold the latter'against displacement from its operative position. The vertical branch of the bolt 27 may be provided with means, as a cavity, forpositioning the other end of the spring. The now free end of the shackle is provided with a notch 29, formed by cutting away a part of the shackle, into which the free end of the sliding bolt 27 will enter, when actuated by the expansion spring 28, to retain the shackle in looking position. As shown in Fig. 2, the upper edge of the partition 18, is notched as at 30, to receive the end of the shackle when the notch is engaged by the bolt. v

The housing for the cylinder 16 is shown in Figs. 3, 4, 5 and '6. Such housing comprises a top plate 31, with two depending opposite side portions 32 and 33. The top plate 31 is provided with a three-quartercircular opening 34, intowhich projects an angular stop 35, the faces of which stand about 90 apart. The projection 22 5 extends inwardly beyond the vertical partition 17 and engages in the slot 37, thus serving to restrain the movement of the housing.

The side 32 of the housing is transversely notched as at 37, which notch is adapted to straddle the projection 22, when the housing and its associated cylinder are inserted in the lock casing. The side 33 is provided with an elongated vertical notch 38, which is adapted to receive the wing 39 of the barrel 40,'and restrain the said wing and barrel fromrotation, while the cylinder 16 is being turned.

The upper end of the cylinder 16 is cut away for the greater part of its diameter, so as to leave a projection 36, having a fiat face near the line 26. The free end of the sliding bolt 2'7 is tapered,-

as is also the free end of the shackle, so that the shackle may be snapped into locking'posit-ion.

For the sake of clearness of illustrationJ have shown some of the parts as slightly separated,-

but'it will be understood that in actualmanufacture there isa close fit of all of the parts with a slight clearance of the elements which are movable.

engagement of the projection 22 in the notch 3'7, so that there is no longitudinal movement of the housing and the cylinder. As stated before,- the wing 39 containing the pin tumblers, will prevent rotation of the barrel 40, while the cylinder 16 is being oscillated in its bearings in' the bottom of the lock casing andthe top plate 'of' the housing. A ring 42, sprunginto a groove about the cylinder, will keep the cylinder in position in the barrel 40. The width of the:partitions and shelves is such as to fill the space between the The housing of the unit fits tightly, between the partition 17 and 18, with, a close.

half shells. After the parts are assembled as before described, the shell 10 is applied as a cover, and the projecting rivets 19 and 20 are spread to permanently unite the shell sections of the casing.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States, is:

1. A padlock of the cylinder type comprising a casing, a unit therein, the said unit comprising a cylinder provided with a barrel having a wing, and a housing for the same, with means between the housing and the wing of a barrel to restrain the barrel from rotation, a partition fixed in the casing to position the housing, and a projection on the partition engaging the housing to restrain movement of the housing.

2. In apadlock, a casing, a cylinder barrel and wing mounted therein, an inverted U-shaped bar housing having in one of its side segments a slot for receiving the wing andrestraining the barrel from; rotation, and means between the casing and the housing'to restrain movement of the q 3; In a padlock, a casing, a cylinder barrel and wing mounted therein, a longitudinal extension on saidcylinder cut away for a part of its diameter to present a flat vertical face, an inverted U-shaped bar housing having in its top segment a segmental opening, and an angular projection of said. segment within said opening adapted to limit the rotation of said cylinder in either direction by contact of said; face with either edgeo said projection. v Y

. l. In a padlock, a casing,'a cylinder barrel and wing mounted therein,'an inverted U-shaped bar housing having in one of its side segments a slot for receiving thawingv and restraining the barrel from rotation and in its top segment a segmental opening, an angular projection of said segment within said opening adapted to limit the rotation of saidcylinder ineither direction by con,- tact of said face with either edge of said projection and partitions between the casing'and the housing to position the housing.

HARRY E. SOREF.

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