Patent Model - Improvement in Burglar-Alarms

Maker and role
William Parker (b.1825, d.1883), Patentee
William Parker, Assignee
Production date
Oct 10 1876
See full details

Object detail

Metal, wood, brass
1 1/2 x 6 x 2 3/4" (3.8 x 15.2 x 7cm)
Parker described his invention as it "relates to an improvement on that class of burglar-alarms which I have described in my Patent No. 167,559, dated September 7, 1875; the object of my present improvement being to simplify the construction of my alarms, to reduce their cost, and to facilitate the operation of applying them to doors or windows." (Patent number 183,203)
Object number


My shortlist

Object type

Explore other objects by color

Public comments

Be the first to comment on this object record.

Google reCaptchaThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.