Патент USA US2135010код для вставки
NOV. 1, 1938. A_ B‘ LEVEN I REGULATOR ’ Filed June 17, 1953' 2,135,010 Patented Nov. 1, 1938. UNITED STATES PATENT orgies 2,135,010 REGULATOR Andrew Baxter Leven, Brisbane, Australia Application June 1'7, 1933, Serial No. 676,372 In Australia June 17,1932 1 Claim. (Cl. 292-—267) This invention relates to devices, known as openers, stays, or holders, for use in opening easements, windows, fanlights, and the like, and for securing them in the open or closed position. 5 The device covered by this invention is such that the easements or the like may be opened and closed with little effort on the part of the operator and then securely held in any desired position. The device may be arranged to operate 10 left or right handed, and for the operation of pivot hung windows it may be applied to any type whether side pivot hung, center or out of center vertical pivot hung, and so on. ’ The invention consists of a guide with a rack 15 formed thereon, a carrier slidable thereon, a locking block rotatably carried thereby and hav-_ ing teeth thereon which can be caused to engage with the teeth of the rack, and a ?nger piece on the locking block. An arm or stay, articulated 20 at one end to the carrier, is provided with a piv oted pin and base at the other end. According to the type of window, the guide and rack are the guide A and rack B with attendant parts on the sash or window, as the case may be, but it will be readily understood that there are cases, such as in the case of fanlights and such like, where it would be more advisable to place the guide A and rack B with attendant parts on the frame. ‘ The device would be made of any suitable metal and the details of construction and the shapes of the various parts could be varied as 10 desired so long as the essential features of the invention are retained. The operation of the invention is: as follows:-—- 'i To open the casement, window or fanlight, as the case, may be, the ?nger piece E is raised as shown 15 in broken lines in Fig. 2. The teeth on the look ing block D being thereby freed from the teeth In of the rack B, the block D can be slid along on the guide A causing the stay F to push open the casement or the like. The, ?nger piece E is then turned to the full line position and the locking piece locked with the rack B. secured to the sash or window frame, as the case As the teeth D1 of the block‘ D are of inverted may be, and the pivoted pin on the arm or stay V-shape they engage the diamond shaped teeth 25 is secured on the frame or sash. In of the rack B with a cam or wedging action In order that the invention may vbe better that insures a tight and non-rattling ?t without understood it will now be more fully described requiring a strong effort on the part of the with the aid of the accompanying drawing, in which 30 Fig. 1 is a perspective view of one form of the invention; operator. ‘ - ~Having now particularly described and ascer tained the nature of my said invention and in what manner the same is to be performed, I Fig. 2 is a transverse sectional elevation; declare that what I claim is:—- Fig. 3 is a front view; Fig. 4 is a top plan view of the rack engag A device of the class described, comprising an elongated guide, a rack formed on said guide, 35 ing surface of the locking block. The invention consists of a guide A formed with a rack B on its face. On this guide a carrier C is slidably carried and it in turn carries a locking block D capable of rotation and having 40 teeth D1 on one face. These teeth D1, which are preferably substantially inverted V shape, normally engage the teeth l0 (preferably V or r the teeth of said rack being diamond-shaped in plan to provide diverging wedge surfaces on the portions of said teeth extending at right angles to said guide, a carrier slidably mounted on said guide, a rotatable locking block carried by said carrier, said block having an arcuate surface with its axis parallel to said rack, sub stantially V-shaped teeth formed on said surface of said block, said teeth being engageable with diamond shape) of the rack B, as in Figs. 1, 2, 3, and 4, but they may be rotated out of engage said wedge surfaces of a selected rack tooth 45 ment, as in broken lines in Figure 2. The lock ing block D is provided with and actuated by a on said lock and frictionally maintain said block ?nger piece E. whereby to wedge the latter between said teeth in a rack tooth engaging position, and said block . The stay F is articulated to the carrier 0 and being rotatable on its aforesaid axis to withdraw to a base or standard G which is secured to any its teeth from engagement with said rack tooth 50 suitable support. I , Generally speaking, the device will be used with to permit said block to be slid along said guide. ANDREW BAXTER LEVEN.