US1216764A - Lamp-bracket. - Google Patents

Description

c. E. ANDERSON.

LAMP BRACKET. APPLICATION FILED 8.23. `|915.

,I l Patented Feb. 20,1917.

UNITED srArEs rATE CARL ANDERSON, OF CHICAGO, ILLINOIS, ASSIGNOR T0 CHARLES H.l FOSTER, OF

CHICAGO, ILLINOIS,4

,LAMP-BRACKET.

i Specification of Letterslatent. 't Patented Feb. 20,1917.

Application liled February 23, 1915. Serial N o. 10,036.

to. provide a lamp bracket by means of y which the light may be thrownin any direction desired, and such that this may be accomplished by simple and easy manipulation.

It is a further objectof my iiivention to I provide a lamp bracket ofthe sort described that is readily and removably. secured to its support, that isA simple in its construction and economical yto manufacture.

Additional objects and advantages of the invention will be apparent frtirnthe following description taken in connection with the appended claims.

I have described in ,the following specication and illustrated in the accompanying drawing a lamp bracket constructed in accordance with my invention, it being understood that changes may be made in the form, arrangement and construction of the parts without departing from the spirit of the invention or exceeding thescope vof the appended claims, the form of the invention herein disclosed being merely a preferred embodiment thereof.

In the drawing.:

Figure 1 is a view in front elevation of the lamp bracket, carrying a lamp, secured to the wind shield of a vehicle;

Fig. 2 is a detail view showing in ,side` elevation the lamp and a portion ofthe bracket, the dotted lines showing the lamp moved, to another position;

Fig. 3 is a cross sectional view, the section being taken on the line 3 3 of Fig. 2, look-I ing in the direction of the arrows; v F igu is a detail view, from above, showing the support engaging end of the bracket y arm; andv Fig. 5 is a view similar to Fig. 3 showing a modified form of bracket joint.

Referring to the drawing, 10 represents 'the arm of a lamp bracket which may be removably secured, as hereinafter described to a part of a vehicle, as for example, to the side bar 11 of a wind shield l2. The arm 10 is cut away, as shownin Fig. 4, leaving near the end a semicircular recess adapted to embrace the side bar 11. Fitting intolthe cut away portion of the arm is a clamping plate 13 also having a semicircular recess to embrace the side bar 11. The clamping plate is secured tothe bracket arm by bolts 14 on the latter which pass l i through the plate and are engaged' at their outer ends by nuts 15.

At its outer end, the arm 10 is formed 'zov with a circularface 16 which isfflat except in the disk, aI similar pin 23 on face 1'9 serving to hold disk 21 in place against that face.

In order to clamp these disksfinto close frictional contact, on the bolt 1,7 is a. nut

24 which engages, when screwed down, the

casting 18 and this nut 21 is in turn engaged by an acorn nut 25 in the end of .bolt 17. It will be seen that b v tightening or loosening this acorn nut, the clamping tension on the two disks 20, 21 may be increased or decreased as desired. slight clearance between the disks and their corresponding faces around the center thereof, the greater part of the clamping tension is directed to an ai-eaa'djacent the circumference of the parts. As a result,

Owing to the verv the friction between the disks is sufficient to hold the parts in position with a clamping force that is less than would be required if the faces 16 and 19 were not formed in this manner.

The casting 18 is rotatable with respect to the arm 10 and is journaled on a sleeve 26, formed integral with the nut 24 and embracing bolt 17. This'casting has roughly l the form of two juxtaposed right cones' and as the face 19 forms the base of one cone,

so the base of the other cone, at right angles 1tl1ereto,'is the circular face 27 'formed like faces 16 and 19, and which, as will. be apparent, is y-in a horizontal plane. *Corresponding'to this .face is a similar ,face 28 similarly countersunk on a casting 29 which is riveted to the lamp casing 30 as. at 31` and thus directly supportsv the lamp.

' Clamped between these opposing faces -is another washer-like fiber 'disk 32 which is hel'd in place against the lower face 27 by the pin-recess construction before described.

The lamp supporting casting 29 is rotatable about a pin or bolt 33 which projects upward from the center of the face v27 and passes through' the disk'and casting. VThe lattermember is cut away along a.

Due Ato this construction the lamp supporting casting 29 is held down in frictional contact with disk 32 but it can be rotated about the pivotal pin 33 by a vforce suicient-to overcome the friction of contact.

It will be seen that the Contact tension may be increased or decreased by tightening or loosening the nut or sleeye36. In this instance also the clemping tension is `directed largely to an area adjacent the circumference of the parts, andas a result a lesser clamping force is vnecessary than would otherwise bel required. Current'is supplied to the lamp -by suitable feed wires 37 attached to a plug 38 which -makes a bayonet joint connection with a sleeve 39, having .suitableY contacts, on the back of the lamp casingv 30. For manipulating the lamp a knob or handle 40 is secured to the lamp casing. By means of this handle thelamp may be turned, on the pivotal pin 33, either to the right or left, the contact friction of disks 20,v 21 holding casting 18 stationary the while. On the other hand if turning force is applied in ,u the opposite direction this friction is overcome and the lamp may' be turned VupI or f down, the lamp supporting casting 29 and the lintermediate casting 18 being held togethe'r'as a unit, in such case, by the contact friction between the disk 32 and face 28. Although manual operation of the lamp by means of the lknob or handle 40 is sulficient to overcome the contact friction, this friction is ordinarily suicient to hold the parts in any position to which they may be moyed and if the friction is too great or too shght the contacttensions mav be adjusted as before described. ',lhus it will be seen that the lamp may ben-loved to the right or, left or up or down through a complete circle in elther case if desired; that the movement in either direc- .in Fig. 5. In this form the arm 10 has at its outer end, instead of a substantially atface, a dished vsurface 41, a similar dished 'surface 42 being formed in the lamp supporting casting 29. The respectively corresponding surfaces 43, 4 4 of the intermediate casting 18 are frusto-'cone shaped to t into ythe-'dished' surfaces of the other members.

In this iformjtheffiber disks are dispensed -withfand the 'corresponding engaging surfaces are ground together to fit in closefric- ,tional Contact.

'The contact tension between the arm and ,intermediate casting is adjusted by means of van acorn nut 25 on a bolt 17 on which the casting is journaled and the connections between the intermediate casting and the lamp supporting casting are'identical with the similar parts in the form of device above described. l

A-lamp on a bracket constructed in accordance with my invention is capable of filling many wants of the motorist owing to its varied uses, its ease of manipulation andits simplicity. As before stated it may be turned to throw the light on any point desired and so is capable of illuminating areas not reached by the ordinary lamp. It is effective in lighting the roadway when turning corners; it is very useful in road finding as it can beused to throw a light on sign posts and direction signs; it can be turned to illuminate the engine; or it can be turned to furnish reading light when it is necessary to refer to road books, maps and the like.

The uses enumeratedl are mentioned merely as examples and many others will be apparent.

' Although I have shown and described the bracket as being secured to the side bar of a wind shield, it is to be understood that my invention is not limited to such an arrangement as the bracket may be secured to any part of the vvehicle or in fact to any suitable support.

Having thus described my invention what terslatent is;- v 1. The combination with a lamp, of a sup- 'I claim as new and desire to secure by Letporting bracket therefor, a pin extending outer end thereof, an intermediate member having a bearing on said sleeve and engaged by said nut, a thumb nut on the end of said pin to Aengage said nut, a pin associated with said intermediate member on which a lamp supporting member is pivoted, said intermediate member having frictional connection with said bracket and said lamp supporting end face and a casin member,

2. The combination With a lamp, of a supporting bracket therefor having acircular pin extending outwardlyfrom tlecenter thereof, said face having 4a slightly depressed portion about saidpin, an intermediate member journaled on said pin and having a circular face with ajslightl depressed portion about the center thereo friction disks secured against said depressed faces to be in mutual contact, a in associated With said intermediate mem er, and a lamp supporting member pivoted on said pin and having a frictional connection with said intermediate member. l

3. The combination with a lamp having a casing, of a'fitting secured to said lamp casing having a bearing opening therein, the a'x1s of which lies in an axial plane of the a member having a pin extending there rom through said opening and forming a journal for said fitting, said member having an abutment with Which'said fitting frictionally engages, bearing opening therethrough the axis of Which is substantially perpendicular to the axis of the pin, a second member having a pin extending through thel opening in said first member forming a journal for said second member, said second member being provided With an abutment with which said first member frictionally engages, and being provided with means for securing it to a support.

4. The combination with a lamp having a casing, of a fitting secured to said lamp casing having a bearing opening therein, the axis of which lies in an axial plane of the casing, a member having a pin extending therefrom through said opening and forming la journal for said fitting, said member .having an abutment with which said tting f frictionally engages, a spring surrounding said pin and bearing on said fitting to force it against said abutment, said member havlingaj said member having al a pin extending through the opening in said first member forming a journal for said second member, said second member being provided With an abutment With Which said nrst member frictionally engages and being provided 4With means for securing it to a support.

5. The combination With a lamp having a casing, of-a fitting secured to said lamp casing having a bearing opening therein, the axis of Which, lies in an axial plane of the casing, a member having a pin extending therefrom through said opening and form- 'ournal for said fitting, said member having an abutment With which said fitting frictionally engages, said pin and bearing ing a bearlng opening therethrough the axis of which is substantially perpendicular to the axis of the pin, a second member having a pin extending through the opening in said a spring surrounding' e on sald fitting to force it against .said abutment, said member hav-y first member forming a journal for said sec# casing:

6. he combinatlon with casing having a bearing opening therein, a member having a pin extending therefrom through said opening and forming a journal for sa1d ttin said member being provided With an abutment with frictionally engages, a spring surrounding said pin and bearing on said fitting to force it against said abutment and means for holding .said spring on said pin accessible from Within said casing. v

In lWitness whereof, I have lhereunto sub'- scribed my name inthe presence of two witl:nesses l CARL ANDERSON.

Witnesses:

E. R. KING, KrLBoURNE HUMAsoN.

Copies of this lpatent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, ZD. C.

engages and being a lamp having l a casing, of a fittlng secured to said lamp,

which said fitting

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