Abstract: A tubular door lock for low safety comprising two knobs provided with a tubular shaft combined with a bearing plate, the tubular shaft having a hook and a projection to combine with an actuating plate, a square rod provided to fit in the actuating plates at both ends to enable the two knobs--the inner and the outer one--to move together at the same time.

Abstract: A lockable door seat assembly having two assemblies which are insertable from either side of a door opening for temporary engagement until permanent securing means has been assembled. The door set also includes means for translating the turn bar using available household tools to release the cylinder lock for substitution without removing the lock set from the door. Assembly of the turn bar and cylinder lock are facilitated by a turn button adaptor projection which projection does not interfere with normal door set operation.

Abstract: A cylindrical lock assembly for mounting in a door panel having a transverse bore includes a lock chassis adapted to fit within the bore which has lever handles on rotatable spindles for actuating a latch bolt. The chassis additionally has a support opening on at least the first side of the door panel. A support plate having a diameter greater than the bore is mounted on each side of the door panel and is non-rotatably secured to the panel. The support plate includes an opening corresponding to and aligned with the chassis support opening. A threaded support plate fastener having a hollow, elongated body with an internal opening extending along its length is adapted to extend through the opening in one of the support plates and into the chassis support opening to non-rotatably secure the chassis to the support plate.

Abstract: An inner bearing plate unit of easy assembling for a lock comprising an inner bearing plate, an inner plate and a position plate, to be assembled with an outer bearing plate, said inner bearing plate and said inner plate being assembled together tightly sandwiching the position plate rotatable therein, said position plate having two opposite gourd-shaped holes for two connecting posts of the outer bearing plate to pass through, and the heads of screws mounted at the ends of said posts being able to be made to be positioned through the large diameter sections of said gourd-shaped holes and to stick in the two opposite holes in the inner bearing plate, thus assembling the inner bearing plate unit with the outer bearing plate.

Abstract: An entrance handleset 20 is assembled on a door 22 and includes a handle 24 which is connected at an upper end to an upper rose 26 and at a lower end to a lower rose 28. A thumbpiece 30 extends from upper rose 26 just above the upper end of handle 24 to facilitate operation of a latch (not shown) which is assembled with door 22. At the juncture of handle 24 and upper rose 26, the handle is formed with a spherial face 26 recess 62 to permit swivel or universal adjustment of the handle relative to the upper rose.

Abstract: This lockset has a threaded inside sleeve extending out from its central housing, the sleeve enclosing the inside spindle for the lockset. An inside rose and handle assembly is provided, the rose having inward tabs. A nut is threaded onto the sleeve and has spaced openings about its end remote from the housing, the openings each leading to a series of steps in clockwise direction progressively closer to the housing. Each step has a tread and a riser so that when the handle is brought over the spindle and the rose is maneuvered so that the tabs fit into the openings and the rose is turned in a clockwise direction, the tabs will engage the closest riser to the housing that the thickness of the door will permit. Further clockwise turning of the rose will turn the nut and move the nut closer to the housing so that the treads engage the tabs and draw the rose/handle assembly inward to firmly and quickly install the lockset on the door.

Abstract: A retention plate assembly for fixedly retaining a lock in a door. The lock is adapted to be mountable onto the retention plate assembly. The door for mounting the retention plate assembly has a bore defining an edge from which extends a pair of slots opposite to each other. A pair of holes are disposed adjacent to the bore. The retention plate assembly comprises a retention plate and a pair of bolts. The retention plate has a pair of tangential tabs, a pair of radial tabs and a pair of threaded through-holes. When the retention plate assembly is mounted onto the bore of the door, the tangential tabs bear against the edge of said bore and the radial tabs fit snugly within the slots of the door. The pair of bolts each have a threaded end of reduced diameter with respect to the diameter of the bolt. The bolt also has another end manipulatable for releasably engaging its threaded end to the threaded through-hole of the retention plate.

Abstract: A cylindrical lever type lock is disclosed having first and second spindle housings telescopically receiving an outer and inner spindle, respectively. The outer and inner spindles both have a protruding plate formed on one end for urging a bracket to pull a pole and therefore to open a door. An annular ring rotatably secured on an engaging pin is urgeable by a bar assembly from inside of the door to lock the outer spindle relative to the first spindle housing. An engaging pin, which is rotatable by a key, unlocks the blockage between the outer spindle and the first spindle housing. A pair of plates each having a pair of cutouts, a pair of oblique cutouts and a pair of triangular protrusions are securely mounted on opposite sides of the door to firmly support the first and second spindle housings in position.

Abstract: Disclosed is a means to provide easily installed and accurately aligned lever spring cage for door hardware locks and latches by in the field installers. The device comprises a pair of posts, selectively arranged and mounted in a mounting plate, having four diagonally arranged key hole shaped bosses which accept the pins and in combination with accurate holes in the spring cage effect both the securing and alignment of the spring cage relative to the mounting plate.

Abstract: A shaft of a door handle to be installed in a door includes a limited length threaded segment for engaging a commensurately threaded rose to effect penetration and subsequent threaded disengagement therebetween. The threaded disengagement permits relative rotation without axial displacement and axial withdrawal of the shaft is prevented due to interference between the threaded segments. Upon positional locking of the rose with the door and mating of the door handle with a door bolt, the resulting limited relative rotation between the door handle and the rose in combination with the axial displacement limited by the interfering thread segments prevent threaded disengagement and removal of the door handle.

Abstract: A cylindrical lever handle lock mounted in a door panel having a transverse bore therethrough is secured against rotation due to torque applied to the lever handles. The lock mechanism includes a lock chassis having a pair of chassis support members each having a pair of slots on their peripheries. A pair of support plates having inwardly extending tongue members slide into the support plate openings. The support plates are of a diameter greater than the bore and have openings in the periphery of each which corresponds with a hole drilled in the door panel outside of the bore. Door handle roses are secured over the support plates by through-bolts which pass through the support plate peripheral openings and the drilled door holes. Threaded bushings are also utilized to tighten the support plates on either side of the bore. Additional tabs and screws may be used to non-rotatably secure the support plates to the door panel.

Abstract: This mounting and protection plate for door lock handles is applicable notably as an ornamental fitting to the doors of private houses. The plate (5) comprises a back recess (9) in which a spiral return spring (10) is disposed. The inner turn of the spring has a square configuration engaged by the square-sectioned handle-bar of the door lock which interconnects the handle and the lock mechanism, and the outer turn of the spring is anchored to the plate by engaging a groove formed therein, the spiral spring constantly urging the handle to its normal, inoperative position, independently of the lock spring.

Abstract: A device for centering and securing a pair of door handles in a door having hole of circular cross section and a mortise lock with a square door handle mandrel. The device consists of 2 sets of three plate-shaped bodies engaging one another, the outer one having a hole for the bearing of a door handle and being larger than the door hole, a central body having essentially the same diameter as the door hole, and an inner body smaller than the door hole, all having a central hole for passage of the mandrel. The inner body and the outer body are clamped together by screws which pass through recesses in the central body. Consequently, the inner and outer bodies can be shifted in relation to the central body to compensate for any lack of alignment between the mandrel and the door hole prior to tightening of the screws. Then the screws are tightened so that the outer body and the inner body are clamped together around the central body and then the 2 sets are clamped to each other.

Abstract: A combination door latch and deadbolt assembly includes an improved latch mechanism and deadbolt mechanism designed for use with doors having a variety of standard size backset and cross bore dimensions. The latch and deadbolt mechanisms are carried by escutcheons havings breakaway tabs at varying diametric positions to fit securely within door cross bores of different standard sizes. The latch mechanism further includes an improved mounting arrangement for left- or right-hand mounting and positive centering of lever-type door handles, together with a simplified cam-actuated latch retractor. The deadbolt mechanism includes an improved bolt linkage which provides a desired bolt throw when a relatively small door backset and/or cross bore size is used. The deadbolt mechanism further includes an improved thumb turn rotatable through ninety degrees between orientations representative of deadbolt position.

Abstract: A door latch lever handle fitting includes a retaining member which is pushed onto a shank portion of a lever handle. The retaining member has tongues which engage flats of the shank portion and tongues which engage in grooves formed in the surface of the shank portion to thereby grip the shank portion. In other embodiments where there are no grooves, different retaining members have modified gripping tongue arrangements. The retaining member is stressed to give axial thrust to take up any residual play in the assembly. Ears of the retainer member are engageable with an abutment lug on the rear face of a base plate of the assembly so that the door handle may be turned through a predetermined angle.

Abstract: The invention relates to a door fitting with at least one door operating unit, such as a doorknob, a door handle or the like, and at least one cover plate to cover the opening provided in a door, a window sash or the like for the door operating unit, in which the cover plate has at least one round opening for the door operating unit. Primarily in order to secure the door handle against being pulled off, but also in order to help secure the door handle against canting, the invention provides that the door operating unit for such a door fitting has a cylindrical circumferential groove in the area going through the opening in the cover plate when installed, and that the cover plate consists of at least two parts with curved recesses having inner shoulders that are adapted to the groove and which can be inserted into same, and that the curved recesses combine to form a circular opening in the cover plate when the pieces are combined.

Abstract: A door handle assembly for rotatably coupling a door handle to a spindle, latching mechanism, and a door. The assembly includes an adapter member connected to the door handle and slidingly receiving the spindle. A rosette associated with the spindle is sandwiched between the door handle and adapter member to provide rotatable coupling between the handle and the door. The assembly permits use of standardized length elements on doors of differing thicknesses.

Abstract: Means for attaching a furniture plate to a side surface of a door including an elongate tension member which is secured at one end to the plate and projects laterally from a rear surface of that plate. The opposite end portion of the tension member has an upstanding lip and a camming surface of that lip faces towards the rear surface of the plate. A camming member is located within the door body and is movable along a path parallel to the door side surface, and actuating means which is accessible from the front edge of the door is operable to cause movement of the camming member. When the camming member is moved in one direction along the aforementioned path it engages with the lip camming surface so as to move the tension member in a direction such as to draw the furniture plate rear surface against the door side surface. A single camming member can engage and influence each of two tension members which extend into the door body from respective opposite sides of the door.

Abstract: There is disclosed a secured door knob and escutcheon assembly, wherein the assembly is protected against tampering and unauthorized removal from either side of a door, when said door is in the closed position. The assembly includes a knob arrangement having mounting means which includes a bearing sleeve that is threadably engaged with a mounting plate affixed to the door. Rotation of said bearing sleeve is precluded by an apertured escutcheon plate through which said bearing sleeve is engaged. The bearing sleeve and escutcheon aperture have complementary flats or non-round surfaces such that when the escutcheon is in place rotation of the bearing sleeve is precluded. Further, the escutcheon plate is held in place by holding means that can only be released when the door is opened. In the disclosed embodiment the holding means is a key cylinder engaged through a second aperture in the escutcheon plate and fixed in place by a set screw mounted in the edge face of the door.

Abstract: A door latch mechanism for controllably securing a door, the latch mechanism of the type having a spindle and operating handles, comprises a fusible connecting member rigidly attaching the handle and spindle at room temperature, the fusible connecting member melting at elevated temperatures to permit relative rotation of the handle and spindle. The handle is mounted using a connecting member which is attached to the latch trim using a screwless connection. It is particularly applicable to latches using lever handles in that a positive positioning mechanism holds the handles at their selected positions, regardless of wear and age.

Abstract: In a door handle assembly (1), by which a door handle (2) is journalled through a ball bearing (5) with respect to a mounting plate (8) secured on a door (10), the inner race (6) of the ball bearing being secured in the inner end of the door handle (2), the door handle (2) is directly connected to the inner race (6) by means of a threaded connection (3, 4), a bayonet coupling or the like, and is secured against rotation with respect to the inner race (6) by means of the door handle pin (14), which is passed through a mating hole (13) in a plate or a locking ring (11) which is secured to the inner race (6).

Abstract: A door latch mechanism for controllably securing a door, the latch mechanism of the type having a spindle and operating handles, comprises a fusible connecting member rigidly attaching the handle and spindle at room temperature, the fusible connecting member melting at elevated temperatures to permit relative rotation of the handle and spindle. The handle is mounted using a connecting member which is attached to the latch trim using a screwless connection. This is particularly applicable to latches using lever handles in that a positive positioning mechanism holds the handles at their selected positions, regardless of wear and age.

Abstract: A door latch for storm and screen doors having pre-drilled bolt receiving openings therein by which the latch housing are secured to opposite sides of the door. One of the latch housings has a plurality of openings therein and the other housing has a pair of inserts each having an inwardly extending internally threaded mounting post adjacent one end thereof and projecting through one of the openings in the door for receiving a threaded bolt inserted through an aligned opening in the other housing. The inserts are reversible end-for-end to vary the spacing between the mounting posts thereby to adapt the latch for use on doors having differently spaced bolt openings therein.

Abstract: A door latch assembly in which thrust roller bearings are placed between the handles and escutcheons and axially loaded to eliminate all axial play of the handles relative to the escutcheons.

Abstract: A lockset having a rim mounted latch bolt and a dead bolt arranged in side-by-side relation on a door for engagement within side-by-side openings in a common strike. The dead bolt projects from an edge of the door and is operated from the inside by a turnpiece assembly and from the outside by a key operated lock cylinder mounted in fixed position relative to the door. Inside and outside lever handles journalled for limited angular movement on the turnpiece assembly and on the lock cylinder, respectively, operate the latch bolt from the inner and outer side of the door. The turnpiece assembly is connected to the lock cylinder and the inside lever handle is connected to the outside lever handle through a single transverse bore formed in the door. The present lockset may be installed on a door to replace a cylindrical lockset of key-in-knob type having a single latch bolt without boring an additional hole in the door.

Abstract: A door latch assembly is disclosed adapted for use with a courtesy lock mechanism which can be released in case of emergency by pushing a release stem. The latch assembly has a splined rollback operating shaft which is hollow to receive the release stem therethrough and has its splines journalled directly in the escutcheons and coupled to the handles.

Abstract: Trim alignment means for a mortise lock which includes a bushing screwed into the lock case, a trim aligner screwed onto the bushing, means for anchoring the trim aligner on the door face, a rose and rose bushing mounted on the trim aligner and a knob bushing fixed in the rose bushing, whereby the knob, spindle and trim are held in correct alignment with the hub of the lockset.

Abstract: Device for mounting door handles on a door. A pair of flat annular discs disposed one to each side of the door have central screw fittings to attach to escutcheon plates which carry the door handles. Discs are interconnected by screw clamps which extend through one or more holes in door and draw the discs together against the door. Each disc has three circumferentially spaced tongues which extend generally circumferentially of the disc but project inwardly toward the door. Tongues are spaced radially inwardly from perimeter of the disc. Tongues can serve to locate discs concentrically of an appropriately sized circular hole through the door by engaging the wall of the hole but in the event that tongues cannot enter a hole in the door but engage side faces of the door they can be deformed by engagement with the door under action of clamp means to allow discs to come flat against door faces.

Abstract: A device which protects the knob of a door lock to prevent the breaking thereof and entry includes an outer cylindrical member rotatably secured about the knob assembly by the rose of the knob assembly. An inner cylindrical member is secured about the knob assembly, and includes a plurality of axially extending grooves which engage cooperating ribs extending inwardly from the outer member. The inner member includes a hole in one end thereof to permit key access to the knob, and at least one annular friction ring disposed within the inner member for transmitting a limited magnitude of torque to the knob. The device protects the knob assembly by preventing tampering therewith and also preventing breaking the lock by applying high torque to the knob.

Abstract: A cylindrical lock has a casing mounted in a transverse opening in a door and includes an outer knob spindle sleeve which extends axially outwardly from the casing. An outer rose liner received on the sleeve has spurs which engage the outer face of the door to secure it against rotation relative to the door. A tab on the rose liner received in a groove in the sleeve prevents rotation of the sleeve and casing relative to the outer rose liner. An outer thimble threaded onto the sleeve retains the outer rose liner and an outer rose, which covers it, in assembly with the sleeve. A projection on the outer rose received in a recess in the outer rose liner prevents rotation of the rose relative to the rose liner. The thimble conceals the latter connection and has a slot in its inner end which receives a portion of the locking tab to secure the thimble against rotation relative to the rose liner and the sleeve.