Untitled record

Application filed November 19,1892, Serial No. 452,562. (No model,) Patented in England October 25,1888, No. 15,351*

To all whom it may concern:

Be it known that we, David Waine and Isaac Waine, subjects of Her Majesty the Queen of Great Britain and Ireland, residing 5 at Willenhall, in the county of Stafford, England, have invented certain new and useful Improvements in Chain-Padlocks, of which the following is a specification, and for which a patent has been granted to us in England, io bearing No. 15,351, dated October 25, 1888.

This invention consists of the herein described improvements in “chain” padlocks that is those padlocks in which a chain takes the place of the usual bow or shackle of the padlock.

By our invention the padlock can be locked without a key, is very secure, and the construction is simplified.

W e will describe our in vention by referring 2o to the accompanying drawings on which—

Figure 1 represents in sectional front elevation a chain padlock constructed according to our invention. Fig. 2 is a side view of the same partly in section on line X X of Fig. 1. 25 Fig. 3 is a sectional plan of the same; in Figs.

1, 2 and 3 the shut or bolt is in its locked position; Fig. 4 shows the same parts as Fig. 1 with the chain pressing back the shut or bolt as the chain is pulled through the padlock 30 casing. Fig. 5 shows the same parts of the padlock unlocked. Fig. 6 represents the spring catch separately. Fig. 7 represents the shut or bolt of the same separately. Fig. 8 shows part of the casing of the said padlock. 35 Figs. 9 and 10 are sectional front elevations of a modified form of our invention, the padlock being shown locked in Fig. 9 and unlocked in Fig. 10. Figs. 11 and 12 show parts of the said modification separately.

The same letters of reference indicate the same or corresponding parts in all the figures of the drawings.

Referring first more particularly to Figs. 1 to 8 both inclusive A is the padlock casing 45 and B is the chain which takes the place of the usual bow or shackle; this chain is by preference made of sheet metal links of the shape shown each link consisting of a blank which is folded centrally and engaged with 50 the next link like the well known chandelier chain thus forming blank spaces and holes alternately for the shut or bolt to take into;

but instead of this chain any other form of chain may be employed which has alternate blank spaces and holes for the shut or bolt. 55 One end δ³ of the chain is jointed to the casing A between the usual ears a', and the free end δ' of the chain is by preference made as a tongue as shown for its better insertion in the hole a² in the padlock casing. 60 a² is the hole in the padlock casing through which the end of the chain emerges the mechanism inside being protected by a guard or shield c which is shown separately by Fig. 8 and is provided with pegs o' by which it is 65 secured to the other part of the casing. This guard or shield c is provided with a hole c²through which the front end of the shut or bolt D projects when the padlock is locked. The shut or bolt D is shown separately by 70 Fig. 7. It will be seen the front d' of the shut or bolt is inclined above and flat underneath. This front end is guided by the shield C and the back end is guided by being slotted at d² where a pin E fixed to the lock cas- 75 ing passes through.

F is a spring which acts upon the shut or bolt D and continuously presses it forward and d² is a lower projecting part of the shut or bolt D which is acted upon by the key G 80 in unlocking the padlock.

H is a spring catch pivoted on the pin E and also acted upon by the spring F the front end h' of the eateh being notched so as to engage with the projection d⁴ on the shut D 85 when the padlock is unlocked, as shown in Fig. 5; the fore part Id of this spring catch is also inclined underneath so that it will be lifted by the projection d⁴ when the shut or bolt is pressed back in unlocking the padlock. 90 h² is a tail provided on the spring catch H and which is operated upon by the key in unlocking the padlock as shown in Fig. 4.

When the free end b' of the chain B is inserted in the hole a² and out at the hole a² in 95 the padlock casing, it will in passing act upon the inclined upper side of the fore part d' of the shut or bolt and push the same backwardly the spring F meanwhile keeping the frontendof the shut or bolt pressed forwardly 100 as the links are acting upon its upper side, so that when the chain has been pulled through the padlock casing to form a loop of the required size the shut or bolt will en2

507,948 gage with one of the links and prevent the chain being withdrawn. To unlock the bolt and maintain the shut D in its unlocked position so that the chain can either be thread5 ed from the padlock casing without engaging with the bolt, the key has to be turned to engage with the lower projecting part d³ of the shut so as to force the shut back a little farther than it would be forced back by the io chain, when the notched end h' of the catch will spring down and engage with the projecting part d⁴ as shown in Fig. 5 and maintain the shut or bolt in this position. To lock the bolt the kej⁷ has to be turned in the 15 opposite direction so as to lift the spring catch II from the projecting part d⁴ which is done by the key coming into contact with the tail end IP of the catch as shown in Fig. 4.

In the modification of our invention shown 20 by Figs. 9,10, 11 and 12 we use one or more levers H² (shown separately by Fig. 12) which are tfiade open fronted like the ordinary levers in some other lever locks. This construction of the padlock is more secure than 25 the former shown by Figs. 1 to 8 inclusive as tlie key must be of such a form as to lift the leVer H² to the exact position for the projection d⁴ to enter the open front of the Ibver before tlifi key commences to act upon the lower pro30 jecting part d³ of the bolt lo withdraw the saihe.

The accompanying drawings show what we consider to be the best way for carrying our said invention into effect but it is to be 35 understood that our invention is not limited to tlie precise details illustrated, as for instance, the internal mechanism of the lock, the shape of the lock casing, and the form of chain, might be considerably modified with out departing from the nature of this inven- 40 tion.