3C2 



THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 



^October, 



Door Staybar. — To understand how this stayhar may be applied to 

 opening doors fully, or, as in the case of liot-house doors, to any degree 

 of width, and to retain them fast at whatever angle it may be desir- 

 able to set them open, or to keep them fast when shut, it is only ne- 

 cessary to suppose the groove fixed to the wall horizontally behind 

 the door. 



Fig. 103 represents a hori- 

 zontal section through a door 

 (a), the wall of the hanging 

 style to which it is hinged (b), 

 and the wall against which it 

 shuts (c). The door is supposed 

 to be shut, and it is held in its 

 place by the staybar d, which 

 moves on a stud at e, and along 

 a groove from / to g. All the 

 rest requires no explanation to 

 any one who has understood the 

 description of the window. 



Fig. 104 shows a staybar for a door or a gate, in which the wall is 



on the same plane with the door. In this adaptation of the staybar, 



rte groove in which it slides is made cun-ilinear, merely to facilitate 



^he operation of sliding, because it would slide if the groove were 



straight. The curve a h, therefore, may have any radius" that may be 



convenient, provided that it commences at b and teraiinates at a. The 

 points c c c represent projections from the groove, having holes for 

 screwing on a wooden guide-bar, to prevent the staybar from rising 

 out of the groove. 



Fig. 105 is a section of the 

 groove of half the proper size, in 

 which d is the gaide,-bar of wood 

 screwed on to the groove at c; 

 f is the 0])ening in the bottom of 

 the groove into which the stayliar 

 drops. These openings may either 

 be made at each end of the groove;^ 

 only, for the purpose of o|)ening^ 

 the door to the full width, or they 

 may be made also at the inter- 

 mediate points c c, so as to open 

 the door to different angles, which 

 may be convenient in hot-houses 

 for ventilation. 



Fig. 106 show's a vertical pro- 

 file of Fig. 107, i being the guide- 

 bar, and k the door. 



Fig. 107, of half the proper 

 size, shows the manner in which 

 the guide-bar g is attached to tlie 

 door //, the fitting nut being tight. 



It is to be observed that both 

 the straight and curved grooves 

 require a sort of cover or guide- 

 bar all the length of the groove, 

 placed so as to allow the hook of 

 the stay or projjping bar to be 

 lifted out of the hole, but not out 

 of the groove. In the straight 

 groove (Fig. 103, (/), a piece of 

 wood lA bv -4 in. does very well 

 for the cover ; but in the curved groove a wrought or cast iron cover 

 has been used, and the little tubes or projections marked c c in Fig. 

 104, are cast on the groove to fasten the wooden covers to securely. 



Gates and doors for back sheds, and for various departments con- 

 nected with the kitchen-garden and offices of an establishment, may 

 be most advantageously formed with staybars, instead of locks, bolts, 

 or hooked or other fastenings. In rural architecture, the use of these 

 stavbars is calculated to be still more extensively useful than in gar- 

 dening. 



103 



