US2168732A - Friction-wheel pyrophoric lighter - Google Patents

Description

Aug. 8, l939 A. DUBSKY FRIGTION-WHEEL PYROPHORIC LIGHTER Filed sept. 7, 1957 l I l I I l l l l l IILiT 4d tion is shown., by way of eple, in the Patented Aug.'8, 193,9

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Arthur Dubsky, Vienna,

AppiloationvSeptembex-, 1937, Serial No. 162,750 ..;---lnAustri a September 17.1936

' sciame (ci. swf-'1.1)

,This invention relates to friction-wheel phoric lighters of the type in which, for the Purpose of changing or replacing the piece -of sparking composition or iiint, the pressingup' spring in the tubular flint holder is adapted to be retracted from the ilint, with compression oi' vthis spring, by the movement oia pin passed through the spring in the direction of its length. 'For this purpose, for example, the end of the .o pin furthest removed from the flint is rmly attached, in a -known form of construction, to

a ferrule which ts over the tubular iiint holder for a small portion of its length, and which is slldingly guided on this latter. In the known i l5 forms. oi' construction'of this description the said ferrule is relatively short and constitutes a kind oi knob which, for the purpose of tamng the pressure o! 'the spring oi the int, can be grasped between linger andthumb'and displaced with compression of the spring.

In order to provide a larger total gripping sur- .foe'for the user of the lighter in carrying out the sam displacing movement, mi accordance' 'with the present invention, the ferrule fitted 2s over the mamar mnt holder is extended to mim an enveloping shell of such length that in its normal position it covers up the 'aperture in the tubular holder through which the int is infserted and partly encases the friction wheel.W In

- this manner the lighter is at the same time given a neat and closed exterior.

A further advantageous feature of the inveri-v l f f' 1 Consequently the shell can be more generously dimensioned which makes it r to grasp and I to manipulate. while in the second place in spite ot long and therefore more reliable guidance the frictional resistance to displacement of the shell is reduced. A'i'orm oi construction embodying the inven- PLN panying dra, in which: lig. 1 shows a horic lighter awarding to the invention, in perspective view, with the slidn1 ing shell displaced to take the pressure of the 50 pressing-up spring oi! the int, and to disclose the flint inserting aperture in the Ytubular ilint holder and the friction wheel with its supporting mearm.

Fig. 2 shows the same lighter with the sliding 55 shell in the normal position, likewise in perspective view.y In both ilgures the capof the lighter is omitted for the sake of clarity. Referring to the drawing, the tubular ilint holder 3 is provided with a charging aperture 2 and contains the usual coiled spring 4. 'I'his 5 spring bears-against the lower end of the tubular holder which is narrowed or shouldered as at I9 or closed by a screw plug,`and pressesthe flint up against the friction wheel I. Through the coiled spring there is passed the pin 8 which -lo is provided at both ends with yenlargements in the forml of knobs or 4discs 1, Il. A shell i which in the normal position covers up the charging aperture 2 and shields the friction wheels at the si'de, is slidable in Vguides i per. 15" tainingto or attached to the casing 9 of the lighter. Since, the lower end ofthe pin' 8 is secured to the shell 6 by means of the enlargement l when this shell is drawn downwards the coiled spring 4 is compressed and retracted from 20 the ilint while atthe'same time the charging aperture 2 in the tubular holder l is exposed for the insertion of a fresh flint. vWhen theshell t is moved up into its normal positionl again the charging aperture 2 is covered .over and the fric- 25 tion wheel shielded again, as shown inFig. 2.

1'. In a firictlon-wheel casing, a friction wheel on the casing, a tubular flint holder iixed to the casing beneath the fric- 30 tion'v wheel' and having a charging aperture in one side for the insertion of fresh iiints, a.coiled spring in said holder supportedagainst the lower end of said holder and adapted to press a ilint at the upper lend of said holder against' said 35 friction-wheel, a shellslidably mounted on the casing andr embracingsaid holder and of auch longitudinal dimension as to cover up said charging aperture and partly to encase said frictionwheel when in the normal position, a pin ex- 4o tending throushthe said spring from one endto the other thereof with its upper end coupled with the upper end of said spring and its lower A end secured to said shell, whereby whe the shell is slid downwardly the spring is compressed and the aperture exposed to permit of the ready insertion of a fresh iiint. v

2. 'A friction-wheel pyrophoric/'lighter as claimed in claim l, in which the said shell embraces the said tubular holder with clearance. I

pyrophoric lighter, a'

a. main casing, a friction wheel mounted to one side and adjacent the top of the main casing, a secondary flint receiving casing xed longitudinally to the main casing beneath the friction wheel and provided in one wall with an aperture to permit ofthe insertion of a fresh int,

ixed guide ribs positioned longitudinally of the main casing on opposite sides of the secondary casing, a shell having longitudinal guideways slidably engaging the ribs and surrounding the secondary casing with clearance and when in mueves i normal position partly enclosing the friction wheel, and a resilient connection between the secondary casing and the shell for yieldingly holding the parts in normal position and permitting of the separation of the parts to expose the ilint aperture when it is desired to insert a fresh flint. said resilient connection acting as a follower to yleldingly hold the iiint in yielding engagement with the wheel.

ARTHUR DUBSKY., 10

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