US1185598A - Machine for trimming parallel surfaces. - Google Patents

Description

H C. HANSEN, DECD.

H. A. HANSEN, EXECUTOR. MACHlNE FOR TRIMMING'PARALLEL SURFACES.

APPLICATlON FILED JAN. 7. 1910 Patented May 30,1916;

4 SHEETS-SHEET 1- H. C. HANSENI DECD.

n. A. HANSEN, ExE cuToR. MACHINE FOR TRIMMING PARALLEL SURFACES.

APPLICATION FILED JAN. 7, 1910. 1,185,598. Patented May 30,1916.

4 SHEETS-SHEET 2.

I'HB coLuMBIA PLANODRAPH 00., WASHINGTON; D. c

H. C. HANSEN, DECD.

H. A. HANSEN, EXECUTOR.

MACHINE FOR TRIMMING PARALLEL SURFACES. APPLICATION FILED JAN. 7, 1910.

1,1 85,598. Y Patented May 30, 1916.

4 SHEETS-SHEET 3.

H. C. HANSEN, DECD.

H. A. HANSEN. EXECUTOR. MACHINE FOR TRIMMING PARALLEL SUBFACES.

APPLLCATION FILED JAN. 7, 1910. 1,185,598. Patented May 30,1916.

4 SHEETS-SHEET 4.

THE COLUMBLA PLANOURAPH coi, WASHINGTON. D.

ED STATES PATENT orric HANS C. HANSEN, OF NEWTON, MASSACHUSETTS; HENRY ALFRED HANSEN EXECUTOR OF SAID HANS G. HANSEN, DECEASED.

MACHINE FOR TRIMIVIING PARALLEL SURFACES.

Application filed January 7, 1910.

To all whom it may concern:

Be it known that I, HANS C. HANSEN, a citizen of the United States, residing at Newton, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Machines for Trimming Parallel Surfaces, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to a machine for trlmmlng parallel surfaces upon a piece of work in a predetermined position with respect to, and at predetermined distances from, a figure formed in, or upon, or having a definite position with respect to, the work.

Specifically considered the invention is primarily designed for trimming parallel faces upon the sides of a matrix such as used in casting type with the parallel surfaces at fixed distances from the type intaglio and at a fixed position with respect thereto.

It is found that the relation of the parallel surfaces to the type intaglio can be most accurately determined by using the type it- 1 self as the standard from which the distance and position of the parallel edges or surfaces of the matrix are determined. Hence,

the present invention provides a machine in which a holder for the type is provided.

which can be adjusted to bring the type into the desired position with respect to, and

distant from, the planes of the cutting tools, together with means for. supportlng and adjusting thematrix with respect to the type.

matrix in parallel planes at predetermined Specification of Letters Patent. I

Patented May so, 1916.

Serial No. 536,858.

distances from the edges of the type and.

parallel thereto.

In the drawings Figure l is a front elevation of a machine with the supporting standard broken away; Fig. 2 is a top plan view; Figs. 3 and 4: are detail views of the gages for securing the position of the matrix parallel to either the bottom or the side lines of type; Figs. .5 and 6 are detail views of the gages by which the position of the plane of the cutting tools with respect to the type is determined; Fig. 7 is alcentral cross section of the machine taken in a vertical plane between the cutting-tools; F igs, 8 and 9 are detail views showing the relative positions of the type holder, matrix support, or rest, and matrix; Fig. 10 is a plan view ofan ordinary type matrix. Fig. 11 is a View in vertical cross section of a portion of the front of the machine, the section beingtaken' at right angles to Fig. l

and in the plane of'the axis of the type holder. Fig. 12 is a view in vertical cross section taken transversely to Fig. 11 and in the plane of the axis of the pin 53. Fig. 13 is a detail in cross section taken transversely to Fig. 7 through the block 30.

The machine of this invention is primarily designed for trimming parallel surfaces upon the sides of a type matrix. In a prior patent, Reissue 12,545, granted October 23, 1906, an apparatus is described for truing the bottom surface of the matrix, or that surface into which the intaglio character is impressed, so that the bottom surface of the matrix is brought into exact parallelism with the printing surface of the type "cast from the matrix.

The matrix is shown at A in Fig. 1O and in dotted lines'in Figs. 8 and 9, and for illustration it is shown'as the matrix of the a letter H. The type is shown in Figs. 8 and 9, the body portion being shown at B car rying the raised letter H corresponding to the matrix illustrated.

In casting type the mold extends over the bottom surface of the matrix and in the vicinity 1 of the intaglio' character covers the surface of the matrix with the exception of "a rectangular .areacorresponding to the body; p ort ion gffthe type. The position of the matrix with respect to the mold and, consequently, the position of the type character with respect to the body portion of the type, is determined by the side surfaces of the matrix.

The distance between the sides of the mold and the sides of the matrix is usually a fixed distance varying according to the particular type-casting machine, and is known as the side bearings and head bearing. The distances from the sides of the type character to the sides of the body of the type and from the top or bottom of the type character to the corresponding top or bottom of the body portion of the type, or what is known as the shoulder, are distances which must be secured and maintained with great accuracy and these distances vary according to the style of the letter, the particular letter, etc. Type-founders generally have certain rules for determining these distances and the type must correspond exactly therewith. Hence, it will be seen that the distance from the sides of the matrix to the mold being fixed, the shoulder on the type can be varied or adjusted as required by trimming the sides of the matrix at a distance from the intaglio character equal to this fixed distance plus the length of the shoulder predetermined according to the desired standard. The sides of the matrix must also be trimmed exactly parallel or at a fixed angle with respect to the intaglio character in order that the type body may have the same relation with respect to the type character. The present invention secures these results in a simple and eflicient way and with accuracy and rapidity, as will be pointed out. While the machine is primarily designed for the trimming of the surfaces of a type matrix it is obvious that it may be used for other purposes, and the term work will be used herein as a generic term for the article to be trimmed, which is specifically shown as a type matrix, and the term formwill be used for the standard by whichthe work is positioned and which is shown specifically herein as a printing type.

The machine illustrated in its general form of standard and cutting instrumentalities and means for rotating them is similar to that shown in the prior Patent No.

786,759, granted April 4, 1905, for machine for trimming parallel surfaces.

ning over a pulley 9. Each shaft carries a cutter head 10 provided with suitable cut ting tools 11. It will thus be seen that the cutting tools 11 rotate in parallel planes and that these planes may be definitely positioned by adjusting the cutter carriages upon the bed.

To secure an accurateadjustment of the cutter carriages a hand screw 12 is provided for each carriage connecting the bed and the carriage so that upon turning the hand wheel 13 the carriage will be moved slowly and accurately in either direction. To determine the position of the cutting tool with respect to' a fixed point a suitable scale 11 is provided, andpreferably a vernier scale 15 is also provided. The vernier is of special use because screws are usually cut on the inch system, while type is cut on the point system, the standard of which is 996/1000 of an inch.

The work is held by a work rest and clamps. The work rest is made in two parts 16 and 17 sliding, respectively, transversely of the bed on tracks 18 and 19 formed on the respective carriages 1 and 5. The two parts of the work rest are separated, therefore, from each other to an extent dependent upon the position of the carriages upon which they are mounted and to secure the parallelism of the parts of the work rest and a rigidity of action of these parts in unison they are connected at each end by bars 2.0 and 21, respectively, the bar 20 being'made fast in the part 17 and sliding through a bearing in the part 16, while the bar 21 is made fast in the part 16 and slides througha bearing in the part 17.

The work, such as the matrix 'A, is secured upon the work rest between vertical, parallel plates 22 projecting from each work rest and clamping plates 23. Each clamping' plate is pivoted to its work rest on a screw 2 and each is also provided with a recess 25 to receive thehead of the pivot screw of the opposite clamping plate so that the clamping'plates may bebrought close together. Each clamping plate is clamped -upon the work by means of set screw 26 extending through a lug 27 at the rear of the plate and bearing upon a fixed portion of the work rest. Each clamping plate is,

therefore, a lever and can be clamped with great force against the work.

The work rest may be moved freely back and forth on the tracks 18, 19 by hand to carry the work past the cutters and to bring it forward in position where it may be adjusted. In order to secure accuracy both in adjusting the work with respect to the form and in carrying it past the cutters means are provided for feeding the work rest. Such means are shown as a screw 28 journaled in one of the cutter carriages at its forward end with acrank 31. In

order to enable the movement of the carriage freely the threads are formed in only the lower half of the depending lug and the lug is movable vertically on the work rest by means of an eccentric pin 32 car ried on the end of a shaft 33 provided at its forward end with a handle 34. Hence, by operating the handle 34 the work rest can be engaged with or disengaged from the screw 28. c

In using'this machine in connection with a type matrix the matrix is placed face downward on the plates 22 on the work holder, the face or bottom surface having first been trued to bring it into parallelism with the printing surface of the type, and in order to position the matrix with respect to the planes of the cutters and at the desired distances therefrom a suitable form, such as a type previously cast from the matrix, is made use-of, the said type being first itself positioned and then when the matrix is placed thereover it assumes the required position. i

To support the form or type a form holder is provided and is shown herein as comprising a vertical post 35 mounted in a vertical, cylindrical bearing in the bed of themachine at the front thereof so that the post may be rotated and raised and lowered in the bearing. At the, upper end the post is cut away to leave at two sides thereof projecting walls 36, 37 at right angles to each other. The type is placed on the end of the post with its body against these walls and clamped in position by two clamps 38 and 39 operating in vertical slots in the post. These clamps are L-shape and fulcrumed at the end of the shorter arm, as at 40. Screws 41 and 42 extend up vertically through the post and bear respectively against the clamps 38 and 39 so that upon adjusting the screws the clamps may be forced with great power against the walls 36 and 37.

The post is provided with a lug 43 projecting forwardly through an opening in the bed of the machine. The post is pressed upwardly by a pin 44 sliding in a bearing in the bed and backed by a spring 45, the.

tension of the spring being adjusted by a screw 46 in the bearing. The post is depressed against the action of the spring by a cam on the shaft 47 engaging the lug 43,.

the said shaft being operated by the hand lever 48. The limit of upward movement of the post is accurately adjusted by a set I screw 49 mounted in the bed and engaging the lug 43. ,To hold the post depressed at any pre-determined lower position an arm 50 is pivoted on the bed 51 and provided with-an adjustable set screw 52 which may be swung over the end of the lug 43 when depressed and hold it depressed.

The rotary adjustment of the post is secured bya set screw 53 mounted horizontally in the bed and engaging, one side of the lug 43, while a spring-pressed pin 54 mounted in the bed'engages the opposite side of the post.-

The work rest is provided with suitable gages for determining the position of the form or type with respect to, and its dis tance from, the planes of the cutting tools. Each part of the work rest is provided with a distance-gage 55 adjustable laterally and set by the operator at a fixed-distance from the plane of the cutter, this distance repre senting what has hereinbefore been described as the side or head hearing. The

work rest is also provided with alinement gages 56 and 57, both of which may be mounted upon one portion of the work rest, and which are arranged at right angles to each other so that the longest straight line upon the form or type may be used for alining.

In the operation of the machine the distance gages 55 are first set at fixed distances from the planes of the respective cutters corresponding to the side bearing. A type cast from the matrix which is to be trimmed is placed in the top of the post against the surfaces 36, 37, and then clamped in place by operating the screws 41, 42 to swing the clamps 38 and 39 into engagement. The work rest is then moved back and forth by hand or by'the use of the screw feed operated from the crank 31 until one or the other of the alinement gages 57,

56 is in position to aline with the type. As shown in Figs. 3 and 4 either alinement gage maybe used with a letter such as H but in the case of other letters one or the other will be used according to the character of the letter; for example, in the'case of the letter I only the alinement gage 56 would probably be used. The post isthen rotarily adjusted by the'screw 53'until the.

type is brought into exact alinement with the edge of the gage. are then brought up into coincidence with the extreme side lines of'the type, as shown inFigs. 5 and 6, the hand screws 13, 13 be'-' ing turned for this purpose. In this position there "would be no shoulder upon 'the type because the cutting tools would trim the matrix so as to bring the mold close up 'to'the type'character. Theshoulder desired a tly parallel to th'plianes f t e cutting The distance gages tools and at a distance to provide the required shoulder. The matrix A is then taken and laid upon the supporting plates 22 of the work rest and fitted to the type character,-the post 35 being vertically adjusted by means of the set screw 49 for that purpose. WVhen the matrix 'is in position fitting closely on the type character it is then clamped to the work rest by means of the clamps 23. The post 35 is then depressed by the lever 48 and held in de pressed position by swinging the arm 50 to bring the screw 52 over the end of the lug 43. The work rest is then fed past the cutters, preferably by the use of the screw 28 and the sides of the matrix are trimmed off in exact parallelism and in such position 'as to leave the required shoulder on the type body when cast from the matrix. The other set of parallel sides of the matrix may then be trimmed in a similar way, Figs. 8 and 9 showing the type and matrix in the two different positions for trimming the two pairs of parallel sides. Usually it is only necessary in addition to the sides to trim the top of the matrix so as to determine the shoulder at the head or top with accuracy and the opposite surface at the bottom of the matrix need not be trimmed accurately, because the height of the type body is usuallv fixed for each mold.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed, and a work rest movable transversely of the cutters and of said holder.

2., A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed, a work rest movable transversely of the cutters and of said holder, and manually operated feeding mechanism for feedingthe work rest transversely past the cutters.

3. A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a'cutter mounted on each carriage, a

form holder supported on the bed, a workrest movable transversely of the cutters and of said holder, manually operated feeding mechanism for feeding the work rest transversely past the cutters, and means for connecting the work rest to and disconnecting it from said feedingmechanism.

4. A machine of the class described comprising a bed, two carriages movable longi tudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed, means for rotarily adjusting said holder, and a work rest movable transversely of the cutters and of said holder.

5. A machine of the class described com prising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed, means for rotarily adjusting said holder, a work rest movable transversely of the cutters and of said holder, and a gage carried by the work rest for determining the rotary adjustment of the form holder relative to the work rest.

6. A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and a from each other, a cutter mounted on each carriage, a form holder supported on the bed, means for rotarily adjusting said holder, a work rest movable transversely of the cutters and of said holder, and a gage carried by the work rest and indicating the distance from the path of one of the cutters.

7. A machine of the class described comprising a bed, two carriages movable longi tudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed, means for rotarily adjusting said holder, a work rest movable transversely of the cutters and of said holder, and a pair of gages carried by the work rest indicating respectively the distances from the paths of the respectix e cutters.

8. A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed, means for rotarily adjusting said holder, at work rest movable transversely of the cutters and of said holder, and means carried by the work rest for determining the rotary adjustment of the form holder relative to the work rest and the distance of the form from the paths of the cutters.

9. A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported to move vertically and rotarily on the bed, a work rest mov- 'able transversely of the cutters and of said holder, means for rotarily adjusting said vertically and rotarily movable thereon, means carried by the said holder to clamp the form thereto, means for rotarily adjusting said holder, means for moving, the

said holder vertically, a two-part work rest,

ing the work rest transversely past the cutters, means for connecting the work rest to and disconnecting it from said feeding mechanism, a gage carried by the work rest for determining the rotary adjustment of the form holder, gages carried by the work rest for indicating the distance from the form to the respective paths of the cutters.

11. A machine of the class described com,

prising a bed, cutting mechanism mounted thereon, a form holder vertically movable on the bed, a work rest movable transversely of the cutting mechanism and of said holder, and means whereby the form holder may be raised into the path of the work rest to enable the adjustment of the work on the work rest with respect to the form on the holder and may be depressed below the path of the work rest to allow the transverse movement thereof past the cutters.

12. A machine of the class described comprising a bed, cutting mechanism mounted thereon, a form holder vertically movable on the bed, a work rest movable transversely of the cutting mechanism and of said holder, a spring for normally elevating the form holder into the path of the work rest, and means for depressing the form holder against the action of the spring and out of the path of the work rest.

13. A machine of the class described comprising a bed, cutting mechanism mounted thereon, a form holder vertically movable on the bed, a work rest movable transversely of the cutting mechanism and of said holder, a spring for normally elevating the form holder into the path of the work rest, means for depressing the form holder against the action of the spring and out of the path of the work rest, and means for locking the form holder in depressed position. 1

14. A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carria e, a form holder supported on the bed an rotarilv movable thereon, means carried by the said holder to clamp the form thereto, means for rotarily adjusting said holder, a two-part work rest, the parts of which are connected to have a conjoint movement which is mounted on one of said carriages to move longitudinally in conjunction therewith, means for clamping the, work to the work rest, feeding mechanism for feeding the work resttransversely past the cutters, a gage carried by the work rest for determining the rotary adjustment of the form holder. 7

15. A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed and rotarily movable thereon, means carried by the said holder to clamp the form thereto, means for rotarily adjusting said holder, a two-part work rest, the parts of which are connected to have a conjoint movement transversely of the cutters and each part of which is mounted on one of said carriages to move longitudinally in conjunction therewith, means for clamping the work to the work rest, feeding mechanism for feeding the Work rest transversely past the cutters, a gage carried by the work rest for determining the rotary adjustment of the form holder, gages carried by the work rest for indicating the distance from the form to the respective paths of the cutters.

16. A machine of the class described comprising a bed, two carriages movable lon gitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed and rotarily movable thereon, means carried by the said holder to clamp the form thereto, means for rotarily adjusting said holder, a two-part work rest, the parts of which are connected to have a conjoint movement transversely of the cutters and each part of which is mounted on one of said carriages to move longitudinally in conjunction therewith, means for clamping the work to the work rest, manually operated feeding mechanism for feeding the work rest transversely past the cutters, means for connecting the work rest to and disconnecting it from said feeding mechanism, a gage carried by the work rest for determining the rotary adjustment of the form holder, gages carried by the work rest for indicating the distance from the form to the respective paths of the cutters.

17 A machine of the class described comprising a bed, two carriages movable longitudinally thereof toward and from each other, a cutter mounted on each carriage, a form holder supported on the bed and vertically and rotarily movable thereon, means carried by the said holder to clamp the form thereto, means for rotarily adjustparts o'f Which are connected to have a conjoint movement transversely of the cutters and each part of which is mounted on one of said carriages to move longitudinally in conjunction therewith, means for clamping the workto the Work rest, feeding mechanism for feeding the Work rest transversely past the cutters,'a gage carried by the'work rest for determining the rotary adjustment of the form holder, gages carried by the Work rest for indicating the distance from the form to the respective paths of the cutters. Y

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

HANS C. HANSEN.

WVitnesses:

LEONA CHANDLER, FREDERICK S. GREENLEAF.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eetento, Washington, D. C.

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