US1632832A - Spring surface bolt - Google Patents

Description

1,632,832 June 21, 1927. .5 GOLD SPRING SURFACE BOLT Filed July e, 1925 (/2 I y- IMMINMHMIII 11 INVENTOR, Samzze Z Z6 Patented June 21, 19 27.

UNITED STATES,

SAMUEL GOLD, OF LOS ANGELES, CALIFORNIA.

SPRING- SURFACE BOLT.

Application filed July 6,

This invention relates to surface bolts and especially to spring bolts of this class.

An object of the invention is to provide a very simple, low-cost, yet practical, durable and effective bolt.

another object is to provide a spring surface belt of few parts and which are selflocking in assembly.

Other objects and advantages will be made manifest in the following specification of the embodiment of the invention here illustrated; it being understood that modifications, variations and adaptations may be resorted to within the spirit, scope and principle of the invention as is here claimed.

Figure 1 is a front elevation of the device.

Figure 2 is an edge view; the sliding bar being broken away.

Figure 8 is a rear face view.

Figure 4 is a longitudinal sectional view of the plate, showing the spring as applied. Figure 5 is a front view of the spring.

Figure 6 is an edge view of the bar; this being partly in section.

The device includes a stiff back frame or plate 2 having screw holes 3 and forwardly stamped bridges 4, on one face, to receive a stiff bolt-bar 5 having at one end a finger button 6.

It is desirable to provide a strong spring element by which to frictionally and also positively secure the bar 5 in its guide bridges l. To that end I provide the plate 2 with a narrow cross-slot 8 and a window 9 and a bow spring 10 having one end ,hooked back at 11 to match in the slot 8.

The opposite end of the spring 10 has a cross-corrugation l2 reverse to the bow and fitting loosely in the window 9. The free end 13 of the spring rides on the cross-web 2 of the plate. The ridge or crown of the bow spring has a horn 14 projecting outward and which is adapted to spring into cross-recess 5 in the rear, flat face of the bar 5.

In assembling the parts the spring 10 is placed on the plate with the hook end 11111 the slot 8. Then the bar 5 is pushed under the bridge a nearest the slot and is then pushed along the bow of the spring, de-

1926. Serial No. 120,725.

pressing it, until the leading end of the bolt bar passes fully under the second bridge and until the latching horn 14 snaps into the bar recess 5. The bar can thereafter be pushed along until the button 6 steps against the near bridge a, at which time the far end of the bar will project be yond the end of the plate 2.

Back pull of the bar 5 will be stopped when the recess 5 registers with the horn and this latter snaps outward into the recess and against its shoulder 5 It will be seen, therefore, that the bar is irremovable and is always under spring pressure outward from the face of the plate 2 and so cannot rattle or work loose.

The bottom of the recess 5 is so inclined as to allow the bolt bar 5 toreadily repress the horn is and the spring 10 when the bolt bar is projected.

It will be seen that the spring is interlocked in the plate against both end and side play.

What is claimed is: c

1. A surface bolt including a back plate, a bolt bar slidable endwise on the plate, and a bow spring compressed between the plate and the bar and having a central, outturned horn means to prevent total withdrawal of the bar from the plate; said. spring interlocking with the plate against side and end displacement.

2. A surface bolt structure including a plate having bar bridges, a bolt bar slidable under the bridges and having a stop shoulder in its bottom face, and a bow spring compressed between the bar and the plate and having one end bent transversely to form a hooking part and its opposite end having reverse bow; the plate having a narrow cross-aperture to receive the hook part and having an aperture for the reverse bow end of the spring; whereby the ends of the spring are held against side play. 3. A surface bolt including a back plate, a recessed bolt bar slidable endwise on the plate, and a bow-spring compressed between the plate and the bar and having at its crown a horn to engage in the recess to prevent total removal of the bar.

SAMUEL GOLD.

Images