US1132896A - Artist's stippling-pen. - Google Patents

Description

F. G. ADAMS.

ARTIST'S STIPPLING PEN. APPLICATION FILED 3.4, 1914.

1,132,896. Patented Mar. 23, 1915.

Izgz

BIZ.- 1 .3 6, d j F 1 IL i k F r I; g l C a 5 E 93 A 1 12 H b IHE NJKRIS FETERh CO PHGTD-LITHO, WASHINGTON D. C,

FRANK CECIL ADAMS, OF LONDON, ENGLAND.

ARTISTS S'IIPPLING-PEN.

Specification of Letters Patent.

Patented Mar. 23, 1915.

Application filed April 4, 1914. Serial No. 829,564.

To all whom it may concern Be it known that I, FRANK CECIL ADAMS, subject of the King of Great Britain and Ireland, residing at 20 New Oxford street, London, l/V., in the county of London, Eng land, artist, have invented new and useful Improvements in Artists Stippling-Pens, of which the following is a specification.

My invention relates to improvements in stippling pens, more especially those in which a short nib holder is so connected through the medium of a spring to the pen body, that it may be given an oscillating movement about its point of attachment to the same, causing the nib to rapidly vibrate thereby making a series of dots upon the work in question While the pen is in motion.

In order that my invention may be more readily understood, reference is had to the accompanying drawings in which Figure l is an external elevation of my improved stippling pen. Fig. 2 is an elevation showing the mechanism the case being partly in section. Fig. 3 is a plan of the mechanism removed from the case and Fig. 4 is a detail sectional view of the switch.

Referring to the drawings, A is the outer case in which the whole of the working parts are contained. A frame B carries at one end the plug or bush 6 which is slotted to allow the pen-holder C to reciprocate therein. The pen-holder C is mounted on the end of the spring strip D secured to the frame B by the flexible bracket b the opposite end forming the armature d, adapted to be attracted by the core of the electro-magnet E, also mounted on the frame B, when the electric circuit is closed and which is restored by spring action when the circuit is broken. A suitable contact breaker F is provided, comprising an adjustable contact 7 mounted in the bracket and adapted to contact with spring contact al on the flexible strip D carrying the pen-holder C.

In the end of the outer casing A is a plug or bush a through which the wires G pass to terminals on the disk 9 of insulating material; from which the connecting wires pass, one to the winding of the electromagnet E and the other to a switch. This switch comprises an arm H of insulating material pivoted at h to the brush 6 and provided at one end with the contact screw h to which the electric wire is connected and at the other end is a push or operating button k which when depressed, raises the contact screw if, so as to bring this into contact with the case A. As one end of the winding of the electro-magnet E is connected to bracket 7' and through the contact f and spring blade d with the frame B, which is in contact with the case A; the circuit will be completed when the switch is operated to close the circuit and the armature d will be oscillated, to rapidly move the pen-holder C, to form a series of dots, when the pen in the latter is traversed over the paper or the like upon which it is desired to produce a design or stipple.

It will be readily seen that the whole of the mechanism may be easily withdrawn in its entirety from the casing A without disturbing any of the parts. This pen when not working for stippling purposes may be readily used for drawing straight lines.

What I claim as my invention and desire to secure by Letters Patent is 1. In an artists stippling pen, an outer casing, a frame carrying at one end an electro-magnet, a spring arm formed at one end to constitute the armature to the electromagnet and carrying a pen or like holder at the other, a bush mounted on the frame at the end remote from the electro-magnet and in which the pen or like holder reciprocates and a make and break contact device to cause the armature to be oscillated by the electro-magnet.

2. In an artists stippling pen, an outer casing, a frame carrying at one end an electro-magnet, a spring arm formed at one end to constitute the armature to the electro-magnet and carrying a pen or like holder at the other, a bush mounted on the frame at the end remote from the electro-magnet and in which the pen or like holder reciprocates, a make and break contact device to cause the armature to be oscillated by the electro-inagnet, and a switch having a contact to which the electrical wire is connected and which is adapted to be brought into contact with the case, to close the circuit from one lead through the winding of the electro-magnet, contact breaker and spring blade to the frame and casing and from thence through the switch contact, back to the other lead.

3. In an artists stippling pen, an outer casing, a frame carrying at one end an electro-magnet, a spring arm formed at one end to constitute the armature to the electromagnet and carrying a pen or like holder at the other, a bush mounted on the frame at the end remote from the eleetro magnet and in which the pen or like holder reciprocates, a make and break contact device to cause the armature to be oscillated by the electromagnet, a switch comprising an arm of insulating material pivoted to the bush at one end of the frame, an operating button projecting through the casing at one end and a contact at the other end to which the electrical wire is connected and which is adapted to be brought into contact with the case when the projecting button is operated; to close the circuit from one lead through the winding of the electro-magnet, contact breaker and spring blade to the frame and casing 15 and from thence through the switch contact, back to the other lead.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

FRANK CECIL ADAMS.

Witnesses:

FRANK \V. PATTIsoN, JOHN D. MCCREDDIE.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner of Patents.

Washington, D. G.

Images