GB2250317A - Electric door knocker - Google Patents

Electric door knocker Download PDF

Info

Publication number
GB2250317A
GB2250317A GB9025986A GB9025986A GB2250317A GB 2250317 A GB2250317 A GB 2250317A GB 9025986 A GB9025986 A GB 9025986A GB 9025986 A GB9025986 A GB 9025986A GB 2250317 A GB2250317 A GB 2250317A
Authority
GB
United Kingdom
Prior art keywords
item
knocker
door knocker
panel
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9025986A
Other versions
GB9025986D0 (en
GB2250317B (en
Inventor
Michael Albert Crouch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9025986A priority Critical patent/GB2250317B/en
Publication of GB9025986D0 publication Critical patent/GB9025986D0/en
Publication of GB2250317A publication Critical patent/GB2250317A/en
Application granted granted Critical
Publication of GB2250317B publication Critical patent/GB2250317B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K3/00—Rattles or like noise-producing devices, e.g. door-knockers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

An electric door knocker comprises a conventional door knocker 1 and an electric motor 2 which acts on a push rod 4 by means of a camb 3. On pushing button 5, the circuit is completed via a power source 6 to energise motor 2 which rotates camb 3 and this displaces knocker 1. On releasing the button 5, the weight of knocker 1 returns rod 4 to its original position whilst simultaneously striking the door. <IMAGE>

Description

Panel A Electric Door Knocker Comnonants 1/ Door Knocker 2/ Electric Motor 3/ Camb 4/ Push Rod 5/ 3utton Bell Push 6/ Power Door Knocker Ref. 1.
Door Knocker fixes to door as normal, with hole through door in line with bottom part of knocker.
Electric Motor Ref. 2.
The Electric Motor size must be in accordance with weight of Door Knocker arid fitted to the rear or door w:-.th end of -Dr.aft vertically and Horizontally in line with hole through door.
Panel 5 Camb.
Ref. 3.
The Camb fixes to the end of the Electric Motor Shaft with offset hole for Push Rod to fit. The length of stroke is determined by how much offset there is from centre of Shaft.
Push Rod Ref.4.
Push Rod must be of a thin sprung wire type with one end cranked to fit in Camb. The other end must pass through hole in Door and make contact with bottom of Door Knocker.
Button Bell Push Ref. 5.
Push Button fitted to Door Frame to act as on/off switch.
Power Ref.6.
Power to Electric Motor can either be Battery or Mains fed through a Transformer.
Panel C Electric Door Knocker ExDlaination to Working On pushing Mutton the Circuit is completed to take power to the Electric Motor which rotates the Camb to give Push Rod horizontal piston action. The length of stroke is determined by the amount of the off-set hole on Camb.
:1while rotating the other end of Push Rod is travelling through the hole in the Door touching Hammer of Door Knocker to give lifting and dropping action as if done manually.

Claims (5)

Claim's
1. The Electric Door Knocker comprises of a Standard Door Knocker normaly used manually as shown on Panel D, Item 1/ with the addition of items 2.3.4.5. and 6 the Door Knocker will become Automatic.
2. The Electric Door Knocker, as Claim 1/, fitted with items 2.3.4. as illustrated on Panel D will become Automatic by Item 2/ The Electric Motor Revolving which is carrying a Camb(Item 3) Piston Action of Push Rod (Item 4) is then produced.
3. The Electric Door Knocker becomes Automatic as Claiml/ and 2/ by the end of Push Rod (Item 4) touching Door Knocker (Item 1) while Piston Action is in motion as with dotted lines (Item 4)on Drawing Panel D.
4. With Ref. to Claim 3/ the Electric Door Knocker as Panel D has Button Bell Push (Item 5) with Power as Panel B/. Ref. 6.
To produce On/Off Power to Electric Motor, Item 2/ to activate Push Rod, Item 4/, As Claim 1 and Claim 2 and Claim 4.
5. Electric Door Knocker as Claims 1.2-3.4.
Herein with Ref. to Panel A.B.C. and Drawing Panel D
GB9025986A 1990-11-29 1990-11-29 Electric door knocker Expired - Fee Related GB2250317B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9025986A GB2250317B (en) 1990-11-29 1990-11-29 Electric door knocker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9025986A GB2250317B (en) 1990-11-29 1990-11-29 Electric door knocker

Publications (3)

Publication Number Publication Date
GB9025986D0 GB9025986D0 (en) 1991-01-16
GB2250317A true GB2250317A (en) 1992-06-03
GB2250317B GB2250317B (en) 1994-07-27

Family

ID=10686200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9025986A Expired - Fee Related GB2250317B (en) 1990-11-29 1990-11-29 Electric door knocker

Country Status (1)

Country Link
GB (1) GB2250317B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828380A (en) * 1957-09-23 1960-02-17 Bernard Buckingham Improvements in or relating to devices adapted to act as or to simulate door knockers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828380A (en) * 1957-09-23 1960-02-17 Bernard Buckingham Improvements in or relating to devices adapted to act as or to simulate door knockers

Also Published As

Publication number Publication date
GB9025986D0 (en) 1991-01-16
GB2250317B (en) 1994-07-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961129