Patent GB-575562-A (GB)
Title: Improvements in or relating to fastening and holding devices for doors, gates and the like
IPC: E05B65/00
Filed: 1944-03-25
Abstract: 575,562. Gate &c. fastenings, holders, and stops. RICE, C. J. March 25, 1944, No. 5576. [Classes 44 and 65 (i)] In a fastening for gates and doors, particularly for gates of concrete or other heavy construction a pivoted or sliding latch engages a keeper which is arranged to act also as a buffering device. The device may be used for holding the gate in closed or open position, and comprises a fixed body portion on which the keeper provided with latch-engaging and gatearresting abutment surfaces is slidable against the action of springs, rubber buffers, dashpots, or other resilient means. Figs, 1, 2 show a pivoted lift latch, the handle 3 of which may have a terminal reflector 23, mounted on the gate 1. The keeper device, mounted on the post 2, comprises a tubular body 5 closed by end caps 19 and housing a pair of compression springs 17, 18. One side of the body has an integral or rigidly attached plate 6 which is secured, preferably adjustably, to the post. The other side has an integral or rigidly attached plate 7, the edges of which are slidably embraced by the inturned edges of a plate 8 provided with the latch-engaging projection 9, and gatearresting abutment 12. As shown a second latch-engaging projection 10 is provided so that the device may be used either way up to suit the direction in which the gate closes. The abutment 12 shown is formed by one limb of an angled member the other limb 11 of which is secured to plate 8 and has a projection 14 extending through a hole in plate 8 and a slot formed in plate 7 and body 5 into position between the opposed ends of springs 17, 18. Abutment 12 is preferably adjustable to suit the thickness of the gate and ensure that when the gate hits abutment 12 the latch has engaged behind projection 9. Closing impact of the gate is thus cushioned by springs 17 and the recoil by spring 18. The specification describes adjustable constructions in which plate 8 has upstanding nut-receiving threaded studs adapted to be selectively engaged in a series of holes provided in part 11, the back of which has a projecting stud selectively engageable in one of a series of holes in plate 8. Plate 6 has apertures by which it may be directly secured to a wooden post by screws, but as shown is adjustably mounted on a concrete post 2 by means comprising a plate 20 the rear face of which has a shaft 21 (which may be mainly of square section) detachably secured thereto by screwing or permanently secured as by welding, the shaft passing through a hole in the post, and being secured by washer and nut. The plate 20 may have teeth 20<1> to bite into the post. The front face of plate 20 has upstanding threaded studs 22 selectively engaged in two of a series of holes 21 in plate 6 and secured by nuts. Figs. 10, 11 show the invention employing vertically slidable latches disposed near the bottom edges of a pair of meeting garage gates (only one shown at 30). In this case a pair of keeper devices (one for each gate) generally similar to that described above have a common base-plate 51 anchored to the ground. The end caps of the bodies 5 may carry reflectors. The bolt has a rectangular sectioned part guided in a casing 33 attached to plate 34, its lower bifurcated end 32 projecting and furnished with a roller 40. A reduced portion within the casing is surrounded by a spring 36 abutting against an end plate 37. Downward movement of the bolt is limited by an adjustable threaded sleeve 38 abutting the upper surface of plate 37 and secured by a locknut 39. Plate 34 has studs projecting through the gate and through a plate 35 and secured by nuts. The abutment 12 and latch-engaging projection 9 are shown as integral with plate 8 but the abutment member may be separately formed and adjustably connected to the plate. The Specification also shows an arrangement in which the keeper is mounted on the post to co-operate with a horizontal bolt, and in this modification the bolt differs from that shown in Figs. 10, 11 in that member 38 is spaced from plate 37 by a sleeve provided with an oil-hole for lubrication purposes. A keeper device may also be mounted on the ground or suitable support to hold the gate in open position and the Specification shows a keeper for this purpose mounted so that the abutment 12 is on the bolt-carrying side of the gate and its distance from projection 9 is sufficient only to trap the bolt end.