197:, is a more complex device, and its higher manufacturing cost as well as its more labor-intensive installation make the bored cylindrical lock an ideal substitute, both in price and functionality. Because the mortise lock has a larger lock case, a larger and more complex volume must be removed from the door before it can be installed, but the mortise lock may offer additional functions compared to a cylindrical lock; for instance, the mortise lock may include a deadbolt in a single unit, while the cylindrical lock would require separate face bores for a deadbolt and doorknob. The 1923 patent evolved from an earlier Schlage patent filed in 1920 for a lock whose installation required a face bore and surface
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In the United States, typically, the face bore is sized from 1.5 to 2.125 inches (3.81 to 5.40 cm) in diameter and is centered at 2.375 or 2.75 inches (6.03 or 6.99 cm) from the leading edge of the door. This distance is referred to as the "backset." Other, less popular, backsets are at
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3.75 and 5 inches (9.5 and 12.7 cm). Residential doors are normally prepared with a 2.375-inch (6.03 cm) backset and commercial doors have a 2.75-inch (7.0 cm) backset. The edge bore is typically centered on the edge.
161:. The "face bore" is the larger hole which is bored into the door face and a smaller "edge bore" hole is bored into the door edge. The edge may require additional preparation to receive the latch assembly, typically by
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a shallow mortise. Some commercially-sold doors may come prepared to receive one or more bored cylindrical locks, such as entry doors, which typically require both a door knob and
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arose from a need for a more cost-effective method of locking doors. The previous norm (still the norm in Europe), the
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407:, Schlage, Walter R., "Door Lock", issued 22 May 1923, assigned to Schlage Manufacturing Company
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379:"Basic Technical Fundamentals of Builders Hardware: Mortise, Bored and Auxiliary Locks"
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Typical preparation required for installation of a bored cylindrical lockset.
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The cylindrical lock was invented by the German-born engineer
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Two holes are bored, perpendicular to one another, into the
338:. University of California: St. James Press. p. 330.
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International
Directory of Company Histories, Volume 82
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which is installed by boring two circular holes in the
381:. Sargent, an Assa Abloy Company. 2016. Archived from
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Derdak & Grant; Thomas Derdak; Tina Grant (2006).
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46:. Unsourced material may be challenged and removed.
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106:Learn how and when to remove this message
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1147:This technology-related article is a
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134:may also use the same installation.
44:adding citations to reliable sources
1151:. You can help Knowledge (XXG) by
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31:needs additional citations for
1030:Glossary of locksmithing terms
1:
964:Perimeter intrusion detection
943:Miniature snap-action switch
690:Time-delay combination locks
1045:John M. Mossman Lock Museum
1035:Electromagnetic door holder
1219:
1134:
269:"How to Install a Lockset"
1078:
903:Closed-circuit television
522:
787:Kensington Security Slot
700:Tubular pin tumbler lock
55:"Bored cylindrical lock"
1198:Locks (security device)
1004:Vandal-resistant switch
958:Passive infrared sensor
888:Alarm monitoring center
685:Rotary combination lock
534:Components and hardware
1060:Lock Museum of America
576:Bored cylindrical lock
405:US granted 1456041
360:US granted 1674841
295:Friday, 12 April 2019
191:bored cylindrical lock
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120:bored cylindrical lock
1088:Category:Locksmithing
999:Ultrasonic transducer
152:
140:
969:Photoelectric sensor
923:Glass break detector
822:Real-estate lock box
721:Electromagnetic lock
593:Single-point locking
546:Interchangeable core
469:Fundamental concepts
310:Direct Door Hardware
40:improve this article
1065:Musée de la Serrure
918:Fingerprint scanner
827:Steering-wheel lock
762:Chubb detector lock
670:Magnetic keyed lock
598:Three-point locking
385:on 7 September 2012
291:"Door Repair Guide"
705:Wafer tumbler lock
665:Lever tumbler lock
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1040:Exit control lock
767:Child safety lock
660:Disc tumbler lock
511:Physical security
306:"What is Backset"
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953:Occupancy sensor
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745:Other lock types
714:Electronic locks
680:Combination lock
655:Pin tumbler lock
643:Mechanical locks
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271:. This Old House
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501:Master keying
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51:Find sources:
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29:This article
27:
23:
18:
17:
1153:expanding it
1146:
1116:
1104:
1092:
974:Piezo switch
883:Alarm device
850:Lock bumping
842:Lock picking
802:Luggage lock
752:Bicycle lock
736:Keycard lock
629:Skeleton key
581:Mortise lock
575:
561:Key retainer
458:lock picking
454:locksmithing
399:
387:. Retrieved
383:the original
373:
354:
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313:. Retrieved
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273:. Retrieved
258:
245:Mortise lock
195:mortise lock
190:
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145:Installation
132:Door handles
119:
117:
102:
93:
83:
76:
69:
62:
50:
38:Please help
33:verification
30:
1070:Puzzle lock
1055:Lock Museum
989:Reed switch
898:Card reader
807:Night latch
757:Bramah lock
650:Warded lock
486:Key control
265:Abram, Norm
96:August 2010
1192:Categories
933:Key switch
782:Door chain
614:Berlin key
251:References
66:newspapers
913:Dual loop
893:Car alarm
855:Locksport
777:Dead bolt
772:Crash bar
695:Time lock
634:Smart key
551:Key blank
171:dead bolt
167:chiseling
994:Tripwire
865:Snap gun
860:Slim Jim
832:The Club
792:Knox Box
624:Keychain
586:Rim lock
556:Key code
516:Rekeying
506:Password
389:12 April
315:12 April
275:12 April
239:See also
675:Padlock
619:Car key
571:Lockset
566:Lockrod
541:Bitting
205:Gallery
181:History
163:routing
124:lockset
80:scholar
938:Keypad
460:, and
411:
366:
342:
199:rabbet
82:
75:
68:
61:
53:
1111:Locks
960:(PIR)
797:Latch
450:Locks
122:is a
87:JSTOR
73:books
1149:stub
1123:Book
1099:Keys
607:Keys
391:2017
340:ISBN
317:2017
277:2017
159:door
128:door
59:news
165:or
42:by
1194::
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118:A
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