Патент USA US2407595код для вставки
Sept 10, 1946. ' F. H. WHITELEY 2,497,594 LETTERING INSTRUMENT ‘Filed June 6, 1945 BY ‘ A'rroRNEY Patented Sept. 10, 1946 ' UNITED 2,407,594 STATES PATENT OFFICE , 2,407,594 LETTERING INSTRUll/IENT 7 Fred Howard ‘Whiteley, Kansas City, Kans. Application June 6, 1945, Serial No. 597,800 5 Claims. (Cl. 33-41) 1 2 This invention relates to lettering instruments of the character usually employed by draitsmen in setting down guidelines for the later pro engage the straight edge of a T-square or ‘the like, when the instrument is to be drawn across a sheet of paper mounted'on a drawing board duction of a group of letters or ?gures, and has for its primary aim to provide a device of said not here shown. ‘ ‘ , The salient Hi extending outwardly from the character that is simple to operate, inexpen edge of body 10 opposite from guide edge l2, sive to produce, accurate and convenient in its should be contoured substantially as illustrated to accomplish the desired end of positioning a group of marking elements, as shown in Fig. 4. An arm I6 is pivotally mounted upon body it function, and adjustable to the desired size of letter. , This invention has for its further aim to provide a lettering instrument that has means thereon for‘ indicating the distance between lines of lettering and for disclosing to the operator the space between a set of three lines that are ‘to be employed as guides in producing the letters or H5 numerals.‘ through the medium of structure clearly shown in Fig. 5. Body I0 is recessed as at IE to receive the head portion’ of arm l6 and one edge of recess I8 is arcuate to conform to a similarly arched edge 20 on arm IS. The arcuate edges of recess l8 and the head , of arm l6 are concentric with the axis of rota A further object of my invention is the provi tion- established’ on screw 22, which cooperates with thumb nut 24. ' thereof, a group of marking elements disposed A pointer 26 is established on the free end in such fashion as to be in substantial alignment 20 of arm l6 for the purpose more fully hereinafter horizontally, when the movable portion of the described. Also, arm 16 has a notch 28 to re instrument is at one end of its path of travel. ceive salient I4 when arm I6 is at the end of This invention has for other objects the pro its path of travel in one direction around the vision of a lettering instrument capable of meas uring angles; having the capacity of simultane 25 axis of screw 22. A pair of marking elements 30 and 32 re ously drawing the required number of horizontal, spaced apart lines to be used as lettering guides; spectively, are mounted on arm l6, one on each side of notch 28. These elements are on a radial and susceptible of a large number of additional line extending from the axis of screw 22 and uses-all because of the character of structure 30 when the arm is in the position shown in Fig. 4, chosen to embody the invention. all marking elements and screw 22 are in sub It has heretofore been customary to employ stantial alignment. crude and inaccurate instruments for establish A scale 34 cooperates with marker 36 in teach ing guide lines for lettering, which instruments were objectionable because of inaccuracies and ing the operator the position of elements 30 and the absence of means for simultaneously drawing ‘ 32. As these elements are swung around the , a group of lines, the distance between which were axis of screw 22, the distance between lines 38 not governed by the devices per se. and 40 which marking elements 30 and 32 pro In the drawing: duce, becomes greater until the arm is moved to Fig. 1 is a top plan view of a lettering instru a position where elements 30 and 32 are on a sion of a lettering instrument having as a part ment made in accordance with the present inven tion. Fig. 2 is an edge elevational view thereof. Fig. 3 is an end elevational view of the instru ment. Fig. 4 is an inverted plan view of the letter ing instrument. 40 vertical line or a line perpendicular to edge I2. Marking element US will always remain sta tionary so far as arm I6 is concerned, and there fore, the line 42 which this marking element l4 produces, will be the base line of the lettering. 45 Regardless of the position of arm l6, therefore, the proper proportions will be maintained be Fig. 5 is an enlarged fragmentary cross sec tween lines 38, 40 and 42. tional view taken on line V—V of Fig. 2, and In the operation of the instrument and when looking in the direction of the arrows; and a number of lines of lettering are to be pro Fig. 6 is an enlarged cross sectional view taken 50 duced, pointer 26 is employed as a guide and the on line VI-—VI of Fig. 1. In the form of the invention chosen for illus tration, the numeral l0 designates a body formed of light material, preferably transparent in char acter, and having a guiding edge [.2 designed to last or lowermost line 42 of the set of lines just made, is utilized by registering pointer 26 there with. When this is done, guide edge [2 is placed against the straight edge of a T-square, for ex ' ample, and the instrument drawn in the direc 2,407,594 3 tlon of the arrow shown in Fig. 1. 4 Thus, a spacing instrument as well as means for pro 2. A lettering instrument of the type described, com-prising a body having a guiding edge; an arm duclng guide lines for lettering, is available. pivotally mounted on the body; and a plurality Straight edge 44 on arm I6 is usable as means of marking elements, certain of the elements for drawing lines at the desired angle with re being on the body and the remaining elements spect to edge I2, and under such conditions, the being on the arm, the marking elements and the scale 46 is brought into play. pivotal connections between the body and arm The marking elements are each formed as being in substantial alignment on a line parallel shown in Fig. 6, and comprises a tubular standard with and spaced from the said guiding edge when 48, a head 50 and a. screw-threaded shank 52 on 10 the arm is at one end of its path of movement said head to enter the bore of standard 48. A about the pivotal connection, said arm having a marking lead 54 is frictionally gripped by standard pointer thereon at the free end thereof and serv 48 and projects therefrom to a point where the ing as an indicator for the positioning of the end will engage the paper on the drawing board. instrument when guide lines for more than one Standard 48 is shouldered as at 55 and a shoul 15 row of lettering are to be established. ' der 58 on body ill or arm It, as the case may be, 3‘. A lettering instrument of the type described, serves as a purchase for a spring 68 held under comprising a body‘ having a guiding edge; an tension by nut 62. Thus, the marking element arm ,pivotally mounted on the body; a- pair of assemblies may be removed from their operative spaced apart marking elements on the arm; and position and the marking lead 54 may be fed as 20 a single marking element on the body, said body fast as used. It is understood that lettering instruments hav ing physical characteristics di?erent. from those and arm being formed and so supporting the ele ments» as to have the marking element on the body between the pair of markinggelements on the arm when the arm is at one end of its path departing from the spirit of the invention or scope 25 of travel about the pivotal connection. of\th.e appended claims. 4.. A lettering instrument of the type described, Having thus described the invention, what is comprising a body having a guiding edge and an claimed as I new and desired to be secured by outwardly projecting salient at the opposite edge Letters Patent is: thereof; an arm pivotally mounted on the body illustrated and described, might be made without 1. A lettering instrument of the type described. comprising a body having a guiding edge; an arm pivotally mounted on the body; and a plurality of. marking elements, certain of the elements being on the body and the remaining elements and having a notch formed thereon to receive the salient; a marking element. carried by the salient; and a, marking element on each side. respectively of the notchwhereby the marking elements are’ substantially in alignment when the salient is being on the arm, the marking elements and the, 35 within the notch. pivotal connections between the body and arm 5. A lettering instrument of the charaeter set being in substantial alignment on a line parallel forth in claim 4, wherein the substantially aligned with and spaced from the said guiding edge when marking elements are on a radial line extending the arm is at one end of its path of movement from the pivotal mountingr of the arm. about the pivotal connection. ' FRED HOWARD WHITELEY.