US1608246A - Type-soldering apparatus - Google Patents

Description

Nov. 23 1926. 1,608,246

G. A. SEIB TYPE SOLDERING APPARATUS Filed April 23 1925 3 Sheets-Sheet 1 Illl WITNESSES I INVENTOR f. 72. m M

l ATTORNEY Nov. 23 1926. 1,608,246

TYPE} SOLDERING APPARATUS Filed April 23, 1925 3 Sheets-Sheet 2 WITNESSES RNVENTGR m M 9M W I ATTORNEY Patented Nov. 23, 1926.

UNITED .STATES 1,608,246 PATENT OFFICE.

GEORGE A. SEIB, 0F ILION,- NEW YORK, ASSIGNOR TO REMINGTON TYPEWRITER COM- PANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-SOLDERING APPARATUS.

Application filed April 23, 1925. Serial No. 25,183.

My invention relates to a soldering apparatus and method and it has for its principal object to provide certain improvements in apparatus for and amethod of soldering the type blocks on to the ends of the type bars of typewriting and like machines.

In my prior application, filed September 23, 1918, Serial No. 255,307, new Patent No. 1,587,429 dated June 1, 1926, I have described and claimed an apparatus or fixture for the general purpose stated, and my present improvements are shown applied to a fixture which in most respects is similar to and in some respects identical with the one described in said prior application; but the present improvements are capable of being applied or adapted to apparatus differing specifically from that of my said prior application.

To the above and other ends, my invention consists in certain features of construction and combinations and arrangements of parts,-and in a certain method, all of which will be fully set forth herein and particularly pointed out in the claims.

One form of my invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective view of the ap-- paratus as seen from the rear.

Figure 2 is a right-hand side elevation partly in central section.

. Figure 3 is a right-hand side elevation.

Figure at is a detail view on a larger scale and partly in section.

Figure 5 is a plan view, ,partly in section, of the device for holding the type block in place while it is begig soldered.

Figure 6 is a view ofthesame in section on the line 66 of Figure 5 and considerably enlarged.

.The framework of my apparatus comprises a base casting 1 adapted to rest on a table or work-bench 2 and to project somewhat over the edge thereof as shown, said base 1 being secured to the table bybolts 3 passing through ears 4 of the casting.

5 designates the type bar segment of a Remington typewriting machine. "This consists of a finished casting having the form of a segment of acircle. Said segment has radial slots 6 sawed in its curved periphery, and in said slots the type bars 7 are journaled on an arc-shaped pivot wire8. Fig. 2. In the different figures of the drawing some of the slots have not been drawnand only one or two type bars are shown in place; but this is only for the sake of simplicity in the drawing. In practice the segment when mounted in the fixture as shown is equipped with its full complement of, say, forty-two type bars all assembled.

Means are provided whereby the segment 5 may be readily mounted on the fixture and secured in place in exact position relative to other parts of the fixture. .To this end three blocks or posts 10 project upward from the base casting 1, their upper surfaces being trued off with precision. From the two forward ones of these blocks or posts, dowel pins 11, Figs. 2 and 3, project into dowel holes made in the segment 5, said dowel holes being the same ones that are used to locate the segment with precision when it is mounted in the typewriting machine, the framework of which has dowel pins in the same relative positions as the pins 11. The segment is clamped in position by means of two bolts 12, each having at its upper end a projecting arm or finger 13 adapted to be clamped down against the upper surface of the segment 5, one at each end of the chord of the segment. Each of the bolts 12 extends down through a turret-like part 14 of the casting 1, and it has a nut 15 secured on to its lower end, said nut having an arm or handle 16 projecting therefrom. The construction is such-that by means of the handle 16 the nut 15 can be loosened and the bolt 12 can then be turned to bring the finger 13 away from the segment 5 so as to allow the latter to be lifted ad the dowel pins 11. Tn practice means are provided whereby the bolt 12 is under the pressure of a spring to lift it and whereby as soon as the handle 16 has turned far enough to relieve matically turns with the nut so that the whole operation of loosening the clamp. conreadily mounted in the fixture and located with precision. After all of the type blocks have been soldered on the type bars the segment can be readily removed to give place to another.

In order to locate each type block with precision relative to the segment 5, a series of matrices 20 are provided each consisting of arectangular plate, as shown in Figs. 2 and 5 with the type characters engravedin itsupper surface in intaglio. Each type block 21 has two raised types, one upper case and one lower case character, and there is a'matrix for each type block. If the typewriter has forty-two type bars for example,

the operator will be equipped with fortytwo boxes or compartments, each one containing type-blocks and one of these matrices 20. lVhen a segment is clamped in thefixture, the first matrix is mounted in the fixture as shown and a corresponding type block is set in the engraved matrix which fits itexactly and locates it with precision, and the proper one of the type bars 7 is turned down into position as shown in Figs. 1 and 2 in order to have the type block soldered to it.

In order to make the matrices 20 readily attachable and detachable and to locate them with precision. a block 22 is mounted on the screws '24, one of which appears in the drawing. Four pins or posts 25, Figs. 2

r and 5, rising from the block 22, have their upper ends ground off with precision and the matrix plate 20 rests on the tops of these posts. The block 23 has secured to its righthand edge an upright plate 26 having at its forward and rear ends. lugs 27 adapted to act on the righthand edge of the matrix plate 20 to locate said edge with precision. Another plate 28 has a single lug 30 inposition to .contact with the rear edge of the matrix plate to locate that with precision. A flat spring 31 secured by screws to the side of the casting 1 is properly bent so as to engage the forward left-hand corner of the matrix plate which is rounded for the purpose and to presssaid plate against the lugs 27 and'30. As all of these parts are made with great care and accuracy it will be perceived that the type block when set on or in the matrix has its face located with precision with respect to the dowel pins 11, this precision applying in every direction, that is to say, both front and back, right and left, and up and down. cated accurately not only in the respects mentioned but each type is also perfectly level or, in typewriter parlance, on its feet.

The apparatus is of course so designed that each type when located in the matrix, as described, bears exactly the same relation The type block is 10- to the dowel pins 11 that the printing point of the typewriter does to the corresponding dowel pins in th typewriter framework when printing is to be done with that type. Each of the type blocks is of rectangular outline, as viewed from above in Fig. 5, and has a slot 32 cut lengthwise therein into which the end of the type bar 7 is inserted. Thisslot is so made as to afi'ord a degree of looseness of the type bar in the slot great enough to allow for theinaccuracies of manufacture of the type bar itself. In other words, if the end of'the type bar is not exactly right there is enough extra width in the slot so that said type bar will not disturb the type block, or move it out of the matrix groove. In the soldering operation the extra space in "the groove is filled up with solder.

In the Remington typewriter the segment 5 has an arc-shaped projection or anvil 33 against which the type bar 7 is intended to strike at about the same instant that the type strikes the paper. It is therefore essential in soldering the type blocks on to the type bars that the face of the type bear a certain definite relation to the plane of this anvil To this end the slot in the type bar is cut deep enough so that when the type bar lies against the anvil, as shown in Fig. 2, its free end does not quite reach to the bottom of the slot. This space beneath the type bar in the slot of course becomes filled with solder. In this way all that is necessary to do in order to get the type face in exactly the right relation to the anvil is to press the type bar down against the anvil during the soldering operation and will be compensated for by a variation in the thickness of the layer of solder in the bottom of the slot under the type bar. In Fig. 2 the solder under the type bar is indicated by a heavy black line.

In order more conveniently to apply a flame to the type block to melt the solder the following devices are used as described in my pending application hereinbefore referred to. At the back of the base casting 1 an upright bracket 34 is secured by means of screws 35. The upper part of this bracket has two arms 36 only one of which apears in the drawing and in said arms is ournaled a rock shaft 37. Between the two arms 36 there is mounted fast on the shaft 37 a structure comprising a hub portion which surrounds said shaft and an arm portion 38 projecting. towardthe front of the apparatus. shown] in Fig. 1. this arm 38 is made in two parallel branches joined near their forward; ends by a cross portion 40. The forward end of this arm structure is bifurcated and between the two branches of it a rocking member 41 is pivr 38 is pulled down to its lowermost positionoted on pivot screws 42. A metal tube 43 bent into a convenient shape projects upward from the member 41 and is adapted to be connected by a flexible tube 44 with any suitable supply of gas or a mixture of gas and air. The tube 43 communicates through the member 41 with a branched gas tube 45 which has two arms extending one rightward and one leftward, from which arms two gas jets 46 project inward so that when the arm shown in Fig. 2 these two gas jets are directed toward the type block, one playing on each side of said type block. In order to guide the pivoted member 41 so as to bring these gas jets into theright position, said member has an arm 47 projecting upward therefrom and to said arm at 48 is pivoted a guide link 50, which is approximately parallel to the arm 38 and at its rear end is pivoted at 51 to a bracket 52 secure-d to the main bracket 34. The linkage is so designed that when thearm 38 is down in its operating position shown in Fig. 2 the jets are directed at the type block 21 but when the arm 38 is raised to its position of disuse, shown in Figs. 1 and 3, the piece 45 is inclined rearward so as to carry the flame back to a point where it will not interfere with the operators manipulation of the apparatus.

In order normally to hold the arm 38 in its upper position, shown in Figs. 1 and 3. the structure 38 is provided with a rear-v wardly extending arm 53 having project-'ng from One side thereof a screw 49 to which is connected the, upper end of -a restoring spring 54, the lower end of which is connected to a bracket 34.

The downward motion of the piece 38 is limited by a lug 56 projecting from the hub thereof in position to be arrested by a stop 57 consisting of the suitably shaped end of a block of metal adjustably secured to the bracket 34 by one or more screws 58. The upward motion of the piece 38 may also be limited by this same lug 56 striking a part of the bracket 34.

When the typebar segment 5 is mounted in the fixture as shown, all of the type bars 7 should stand upright as in Fig. 3. To this end an abutment 60 is provided for contact with the heels of the type bars, this abutment in the present instance consisting of a wire or rod bent into the are of a circle and secured by small screws 61 (Fig. 1) to the base casting 1.

The apparatus or fixture as thus far described difi'ers only in some details of construction from that described in my prior ap lication Serial No. 255,307, hereinbefore re erred to. f) In said prior application a weighted yoke was provided to grasp the right and leftpin 55 projecting from the- Venient and also better in its operation. As

viewed from one end each of the type blocks tapers upward, being wider near the type bearing base than along its opposite edge or face. This slope in its sides makes it easier to grasp said type block with a weighted device such as that now to be described. This device comprises in effect a pair of pinchers including ablock 62 slotted in its right and left-hand sides for the reception of two jaws or small bars of sheet metal, one, 63, being rigidly secured to the block by two pins 64, and the other, 65, being pivoted in its slot by a single pin 66. A compression spring 67 retained inplace by two pins 68, tends to cause the rounded ends 7 0 ofthe bars 63 and 65 to be pressed together against the opposite faces of the type'block. Finger pieces 71 formed on or secured to the forward ends of the bars 63, 65 serve as means for opening the pinchers. Thepinchers, when in use extends generallyhorizontally forward from type block 21.

The block 62 has two brackets 72 and 73 secured to its under side by screws 59 and a block 74 has a forwardly directed knife edge 75 and a rearwardl directed knife edge 76 projecting from it through suitable holes in the. brackets 72 and 73. A wire 77 secured in the block 74 hangs vertically downward from it and is thence bent rearward underneath the frame 1, and at its lower and rear end has a weight 78 suspended therefrom by what amounts to a universal joint. When the pinchers are in use and grasping a type block, as shown in the drawings, this weight will of course hang alittle to the rear of the type block so that the whole structure will be balanced. It will be perceived that the ends of the bars or jaws 63 and65 being rounded where they contact with the type block 21, will enable a relative oscillation of the weight 78 and the type block 21 in a front and back direction, these rounded contact points pivoting on the type block so that the latter can settle properly into the matrix. As the type block is of an appreciable length in front and back direction, the friction of this rounded connection will not be suflicient to cause the type block itself to rock if the weight should oscillate slightly.

In the right and left-hand direction the type block is much narrower, and a finer joint is desirable, and this is provided by the knife edges 75 and 76. On account of 'the relative disposition of the parts, as will' Schmidt.

however, being approximately in alignment. This gives a very delicate pivot so that a. relative rocking of the pinchers and the weight on this knife edge pivot can take place very easily and allow the type. block to settle exactly level into the matrix. Of course any other pivotal joint that is sufficiently frictionless can be employed in place of these knife edges. tion of weight orholding device for holding the type. in its matrix is an improvement over that shown in my prior application in several respects. It is, however, not of my invention but is the invention of William A.

The arm 38 may be pulled down from its normal Fig. 3 position to its operating Fig. 2 position by hand, but this is more conveniently done by a foot lever, and such a.- lever is conventionally shown in Fig. 2. This lever is shown as a lever of the first order pivoted in a bracket 81 secured to the floor and having a vertical push rod 82 pivoted to its rear end and extending upward through a hole in the table, and, as shown in Fig. 1, pivoted to an-arm 83 which'is secured fixedly on one end of the rock shaft 37. The lever 80 is so designed that by pushing it down, as shown in Fig. .2, it depresses the arm 38 until the lug 56 is arrested by the stop 57, at which time the .jet is in correct position for heating the solder. This pedal or foot lever is not shown in my prior application. When the pressure of the foot on it is released, the parts are restored to normal position by the spring 54, as has been explained.

I provide a much more convenient and useful means than was shown in my prior application for pressing the type bar 7 which is in the act of being soldered, down against the anvil 33 and holding it there during the soldering operation. As perhaps best shown in Fig. 1, a bracket 84 is secured by screws 85 to the rear side of the main vertical bracket 34 and the upper end of said'bracket 84 is made with a long fore and aft vertical slot 86 in which two parallel guide links 87 are pivoted at 88. These links project forward over the hub of the member 38 and at their forward ends a vertical bar or stem 90 is pivoted thereto at 91. This bar 90 is here shown as a long strip of sheet metal doubled back upon itself so as to come down in two branches. the links 87 being pivoted between said branches. At their lower ends these two branches are given a quarter twist so as to embrace between them a curved universal bar 92, which is secured to the bar 90 as by rivets. This universal bar is a strip of metal curved into an are which is substantially coaxial with the type bar segment 5 other.

This construcposition. In some of my claims I call this a universal presser bar to distinguish it from the device of my prior application, which was an individual spring device that had to be moved from one type bar to an- The parallel links 87 guide the universal bar 92 with a arallel motion up and down,

its normal position being the elevated inacbar 92, one of the links 87 is prolonged rearward to make an arm 93, which, Figs. 2 and 1, lies in the slotted upper end of a vertical. rod 94 to which it is pivoted at 95. The rod 94 is comparatively short and is arranged to slide telescopically in a tube or sleeve 96, its motion being guided and limited in-oxtent by a pin 97 extending through the rod 9% and projecting into slots 98 in the tube or sleeve 90. .-\nother vertical rod 100 is rigidly secured in the lower end of the sleeve 96 and a coiled spring 101 is compressed between the rods 100 and 91 so to press the latter upward. At its lower end, as perhaps most plainly shown in Fig. 1, the rod 100 passes through a horizontal shelf of bracket 102 integral with the bracket 8%. This compound structure 94, 96, 100, constitutes a push rod, which, however, is extensible in length by the pressure of the spring 101.

A screw 103 by which the rod 100 is sccured to the tube 96 is shaped as shown in Fig. 1 so as to serve conveniently as a means for connecting this compound push rod with a restoring spring 104, which is under tension downward. its lower end being connected to the bracket 102. This screw 10;. also serves as a pivot for a link by means of which the compound push rod is operated. This link comprises a piece of sheet metal 105 bent at right angles with one of its flanges pivoted on the screw 103 and to the other of said flanges is secured a wire loop 106, the elfcctof the whole structure being that the link 1055, 106 is a slotted link, the

slot being closed at its upper end. In said slot there is adapted to play a headedscrew 107 projecting leftward from the arm 53 of the pivoted structure 38.

The parts-normally stand in the position shown in Fig. 3 to which position they are drawn by the spring 104, and in which posi- "tion the lower end of the rod 100 rests on a stop piece 108 which, as here shown, consists of a tongue of sheet metal secured by screws to the bracket 34 and projecting rearward and thence bent into a loop, the whole constituting a sort of yielding stop to arrest the bar 100 when it is restored to the- Fig. 0

position by the spring 104, and to do so without undue noise and jar. In this normal position of the parts the screw 107, which is about opposite to the screw 49 in the arm 53, occupies approximately the middle of the long slot in the link 106 and the pin 97 is at the top of the slots 98. When the gas jet is swung down to its operative position shown in Fig. 3, the screw 107 not only moves to the top of the slot in the link 106 but also moves some distance further, pulling upward on said link and'pulling the rod 100 and sleeve 96 up to the position shown in Fig. 2. This depresses the universal bar 92 until the latter is arrested by the down-turned type bar, and there is an excess of motion to the rod 100 so that the spring 101 is compressed, as will be apparent from the position in Fig. 2 ofthe pin 97 in the slot 98.

Means are provided whereby when the operator releases the foot lever 80 and allows the arm 38 to rise to the position shown in Fig. 1, the universal presser bar 92 will be held down under the pressure of the spring 101, as shown in Fig. 1. To this end a suitable detent is provided, that shown in the drawing being very simple and convenient. It consists of a rod or bolt 110 slidably mounted in the hollow base casting 1, its front and rear ends passing through'holes in said casting and in the bracket 34. This rod has a slot passing through it into which projects the upper end of an arm 111 astened by means of a set screw 112 on a transverse rock shaft 113 which is journaled in the walls of the base casting 1. One end of said shaft is bent forward to form a handle or finger piece 114. A spring 115, coiled about the shaft 1l3,'tends to project the bolt 110 rearward, its motion in that direction being limited by a stop 116 consisting of the head of a screw screwed into the bolt and adapted to engage the rear wall of the base casting 1, as shown in Fig. 2. The rear end of bolt 110 abuts the rod 100, as shown in Fig. 3, but when this rod is pulled upward by the operation of the pedal 80, said bolt is projected by its spring 115 so that its flattened rear end is beneath the end of the rod 100. When the pedal is released and the parts moved to the position shown in Fig. 1, the lower end of said rod 100 rests on the rear end of the bolt 110 and said rod 100 is thereby prevented from returning to normal position. The parts are so proportioned that when the universal presser bar 92 is resting on a type bar, and the rod 100 is resting on the bolt 110, the pin 97 is not quite to the top of the slot 98 and the presser bar is therefore being pressed down against the type bar by the spring 101. The parts remain in this position until the solder has cooled, after which the op erator by depressing the finger piece 114 type bars therein having been mounted in the machine, the operator puts in place the first one of the matrix plates 20, which, by

the means described, is located with pre-' cision, and places upon the matrix thecorre- U spending type block with the holding device comprising the pinchers and the suspended weight. The first type bar is then turned down, its free end going into the slot in the type block. The pedal is then operated, with the result that the jet is brought down to its operative position shown in Fig. 2, and by the same operation, automatically the universal presser bar 92 is brought down on top of the single type bar that is being soldered. The foot is held on the pedal until the solder has melted. The presser bar is under spring tension, due to the spring 101 and it holds the ty e bar down against the anvil As the olt 110 has moved under the rod when the pedal is released and the jet is allowed to rise, as shown in Fig. 1, the type bar will continue to be held down by spring pressure as long as the parts are allowed to remain in that position. This will of course be until the solder is cooled suiliciently to permit of raising the type bar and its type block, first striking the finger piece 114 to cause the universal presser bar to be moved out of the way. The second matrix is then put into the machine and the same process repeated with the second type bar.

I find that the process of soldering the type blocks on to the type bars can be very greatly cheapened and also the likelihood of its being done correctly increased by having each operator work two of these fixtures. lin practice, two fixtures are placed Within reach of-each operator, the fixtures being at an angle to one another so that the operator can turn from one to the other. After a segment 5 is put-into each fixture, the operator puts in one fixture, the first matrix and type block, operates the pedal as shown in Fig. 2 until she perceives that the solder is melted, and then releases it, allowing the parts to return to the position shown in Fi 1 where they are in position to permit of the cooling of the solder. She then turns to the other fixture and does the same thing there. By the time she has carried this second fixture through the same steps of the process, the type block in the first fixture has cooled and she can immediately remove the matrix, sub- 'stitute a new one and a new type block and bring this second type block to the same stage. At this point she immediately turns to the second fixture and does the same things, and so on, alternating between the solder is thoroughly hardened. This there is a strong temptation to do, either from carelessness or from a desire to hurry the work to make a good record or from a desire to make more money in case the work 1s piece work. In my prior applicationv heretofore referred to, spring means were employed to press the type bar down into the slot in the type block, and hold it down until it cooled. This spring means consisted of a device attachable to the heel of the type bar. An arc-shaped support for it was provided behind the curved set of type bars. When it was necessary to disconnect this device fromone type bar and connect it with another. it had to be unhooked from the first and hooked into the second. It will be perceived that using a universal presser bar of the sort that is shown in the present case is far more convenient and much quicker than using the former device. It will also be perceived that this universal presser bar need not necessarily have the precise form shown in the present drawing but that this device is capable of being made in various forms.

It will also be perceived that even if the gas jet were controlled by hand and were not mounted on the rocking device 38, this universal presserbar could be operated by hand or by foot by substantially the same mode of operation as that described. @This may perhaps be otherwise expressed by saying that the lever arm 53, which operates this presser bar, need not necessarily in every instance be connected with the gas jet. I

It will also be perceived, however, that its automatic operation b means of the gas jet, which would have to e manipulated in any event, is an improvement in several respects. For one thing, it is adistinct saving both of the time and of the attention of the operator. This operation by or in association with the gas jet, has another advantage. It was found that the o erators of my former apparatus frequent y neglected to. apply the spring to the heel of the type bar, either from forgetfulness or from a'desire to save time, with the result that some of the type bars did not come down against the anvil and the type block was, therefore, not positioned properly on it. By the'present invention, if she solders the type block on at all, she will of necessity bring this presser bar into operation so that there is no chance of its failing to operate through her neglect. Nor is there any danger of her forgetting to raise it because otherwise she could not retion into and out of move the completed type bar out of the way and substitute another one for it.

Various changes may be made in the details of construction and arrangement with out departing from my invention.

What I claim as new and desire to secure by Letters Patent is 1. The combination with means for holding a type bar support and a type in position for soldering said type to a type bar, of a universal presser bar for pressing the type bar into soldering position and for holding it in position during the cooling of the solder, said presser barbeing mounted for motion to pressing position and to inactive position.

2. The combination 'with means for holding a type bar support and a type in position for soldering said type to a type bar, of a universal presser bar for pressing the type bar into soldering position and for holding it in position during the cooling of the solder, said presser bar being movable to pressing position and to inactive position, said presser bar when moved to pressing position continuing to press against the type bar and when moved to inactive position remaining in that position. i

3. The combination with means for holding a type bar support anda type in position for soldering said type to a type bar, of a universal presser bar mounted for motion into and out of position to press the type bar into its soldering position, means to retain said presser bar in its pressing position, and means to restore the presser bar to its inactive position and to hold it there.

4. The combination with means for holding'a type bar support and a type in position for soldering said type to a type bar, of a universal presser bar mounted for moosition to press the pype bar into its soldering position, a spring or pressing saidpresser bar against said type bar, and means to energize said spring and to retain itenergized until released.

5. The combination with means for holding a ty e bar support and a type in position for sold dring said type to a type bar, of a universal presser bar mounted for motion into and out of osition to press the type bar into its soldhring position, a spring, means to ener'gizesaid spring to press said presser bar against said type bar, a detent for holding said spring energized, and means to release said detent.

6. The combination with means for holding a type bar support and a type in position for soldering said type to a type bar, of means under .the control of the operator of the apparatus for applying heat to melt the solder, means under the control of the operator for pressing said type bar into soldering position, the two said means being controlled by a single act of the operator, means acting automatically to continue the pressure against the type bar, and means ,under the control of the operator for freeing said type ,bar from such pressure.

7. The combination with means for holding a type bar support and a type in positionfor soldering said type to a type bar, of means for applying heat to melt the solder, means for applying pressure to the type bar, the two said means being brought into operation by a single act of the operator of the apparatus, means for retaining the pres- I sure against the type bar after the heat apheating position, said pressing means re-' maining in pressing position after the jet has been restored to inactive position. a

9. The combination with means for holding a type bar support and a type in position for soldering said type to..a type bar, of a presser bar mounted for motion into and out of position to press the type bar into its soldering position, two parts having limited relative motion, one of said parts being connected with said presser bar, a spring interposed between said two parts, means for operating the other of said parts so as to move the presser bar to pressing position and to energize said spring, and releasable means for holding said other part.

10. The combination with means for holding a type bar support and a type in position for soldering said type to a type bar, of an arc-shaped universal bar mounted adjacent the set of type bars and movable into and away from a position where it can contact with whichever one of said bars has been brought to soldering position, and means whereby said universal bar may be retained in pressing position independently of the action of the operator.

11. The combination with means for holding a set of type bars and for locating a type block to be soldered, of the universal presser bar 92, the parallel links'on which it is mounted, the compound operating device comprising rods 94 and 100 and the interposed spring 101, and the detent for said rod 100.

12. In soldering apparatus whereby type blocks are soldered to assembled type bars separately moved to place the block-fitting portion of each bar in the block to be soldered to it, a'ipresser bar to the action of which each type bar is subject as the solder melts and which is mounted on the framework and movable in a single path which intersects the path of movement of each type bar.

13. In soldering apparatus whereby type blocks are soldered to assembled type bars separately moved to place the block-fitting portion of each bar in the block to be soldered to it, the combination of a presser bar to the action of which each type bar is subject as the solder melts and which is mounted on the framework and movable in a single path which intersects the path of movement of each type bar, and bar-retaining means which acts on the presser bar while and after the solder melts and until its action is ended by the operator 14:. In soldering apparatus whereby type blocks are soldered to assembled type bars separately moved to place theblock-fitting portion'of each bar in the block to be soldered to it, the combination of a presser bar to the actionof which each type bar is subj eat as the solder melts and which is mounted on the framework and movable in a single path which intersects the path of movement of each type bar, heat-applying means mounted on the framework, and devices connecting the presser bar and said means together.

15. In soldering apparatus whereby type blocks are soldered to assembled type bars separately moved to place the block-fitting portion of each bar in the block to be soldered to it, the combination of a resser bar to the action of which each type ar is subect as the solder melts and which is mounted on the framework and movable in a single path which intersects the path of movement of each type bar, heat-applying means mounted on the framework, devices connecting the presser bar and said means together, and bar-retaining means which acts on the presser bar while and after the solder melts and until its action is ended by the operator. I

16. The method of soldering types on type bars which consists in mounting two sets of type bars in their supports, accurately positioning a type of one set, turning a type bar into position to be soldered, applying pressure to said type bar, melting the solder, and leaving the pressure applied to said type bar while like steps are being carried out on another type and a type bar of the other set, and so on, alternately, working on a type bar of one set while the solder is cooling in the type bar just operated on in the other set.

17 The combination with means for-supporting a type bar segment so that any type bar therein can be turned down in position for soldering a type thereto, of a universal presser bar for pressing any type bar in said segment into soldering position, said presser bar being mounted for motion to pressing position and to inactive position.

18. The combination with means for supporting a type bar segment so that any type bar therein can be turned down in position for soldering a type thereto, of a universal presser bar for pressing any type bar in said segment into soldering position, said presser bar being movable to pressing position April, A. D. 1925.

and to inactive position, said presser bar 1 when moved to pressing position continuing to press the type ball and when moved to inactive position remaining in that position.

Signed at the borough of Manhattan, city 7 of New York, in the county of New York, 1

and. State of New York this 20th day of GEORGE A. SEIB.

Images