Patent GB-706438-A (GB)
Title: Improvements in or relating to typographical composing, casting and distributing machines
IPC: B41B7/16
Filed: 1951-09-04
Abstract: 706,438. Type-bar-making machines. MFRGENTHALER LINOTYPE CO. Sept. 4, 1951 [Sept. 9, 1950], No. 20849/51. Class 100 (3) In a typographic composing and distributing machine having a matrix storage magazine and an inclined assembler belt to receive matrices as they are released from the matrix storage magazine, the magazine is arranged at an inclination of about 70 degrees, the angle of inclination of the assembler belt is preferably 17-18 degrees, and the belt is driven at a rate of speed of the order of 125 in. per second. Magazines, Figs. 1, 3, 4, 6, 9, 13.-The machine is equipped with two magazines A mounted upon separate base frames A<SP>1</SP> which constitute a shift frame so that either magazine may be brought into operative position. The inclination is 70 degrees from the horizontal in order that the travel of matrices to and from the magazine may be accelerated. The shift frame is slidably suspended at its upper end by supporting plates A' running on rollers A3 mounted in the fixed machine frame. Three adjustments are provided for locating the upper base frame and its magazine in proper longitudinal position within the shift frame, for locating the shift frame as a whole in a longitudinal direction, and for locating the shift frame as a whole in a transverse direction, Fig. 14 (not shown). The shift frame is raised or lowered by a lever A<SP>15</SP> which is adapted to rotate the lower of the rockshafts A<SP>10</SP> each having fastened thereto crank arms A". The arms A" are pivotally connected by links A" to the bottom of the shift frame. The rockshafts A<SP>10</SP> have fastened thereto further crank arms A13 connected by long links A<SP>14</SP>. Movement of the shift frame is limited by adjustable stops A<SP>16</SP> mounted in U- shaped brackets A<SP>17</SP> attached to the machine frame and adapted to be engaged by a lug A<SP>18</SP> on the lower base frame. The shift frame is held in its two positions by the action of a spring A<SP>19</SP> which is operatively connected to the shift frame through the medium of a crank shaft A<SP>20</SP> having two arms, one, A", being connected to one end of the spring and the other, A<SP>22</SP>. to a link A<SP>23</SP> on a plate A<SP>24</SP> attached to the underside of the shift frame. The arrangement is such that in the position shown in Fig. 3 the weight of the shift frame overcomes the tension in the spring, but in the other position the tension in the spring overcomes the weight of the shift frame. Attachments for removing the magazine may be as described in Specification 260,459, [Class 100 (iii)]. Each magazine is provided with a bank of escapements B supported in the corresponding base frame A<SP>1</SP>. The escapements have actuating slides B' arranged to be engaged directly by the upper ends of a series of reeds B<SP>2</SP> whose lower ends are arranged to be engaged directly by power operated keyboard slides B3. The reeds B' are mounted in an auxiliary frame B<SP>4</SP> detachably connected to the main frame O that the reeds may be removed as a unit. The frame B4 is provided with upper and lower comb plates and a banking bar B<SP>6</SP>. The reeds are returned to their lowermost position by springs B<SP>7</SP>. The frame B<SP>4</SP> is supported at its lower end by slotted lugs B<SP>8</SP> arranged to fit over studs B<SP>9</SP> on brackets B<SP>10</SP> of the fixed machine frame. Set screws B" are provided in the lugs B<SP>8</SP> for vertical adjustment of the reed frame. The frame is supported at its upper end by screws B<SP>13</SP> mounted on ears B<SP>15</SP> and engaging brackets B<SP>16</SP> projecting from the machine frame. The machine is provided with a lower matrix feeler P<SP>1</SP> and an upper matrix feeler P<SP>2</SP> operated from a common hand lever P<SP>3</SP> fast to a shaft P<SP>4</SP> having a crank arm P<SP>5</SP> connected to a pivoted lever P<SP>6</SP> connected in turn by links P<SP>7</SP> to the lower matrix feeler P<SP>1</SP>. The lever P<SP>6</SP> is also connected by a link P<SP>8</SP> to a swing- ing arm P<SP>9</SP> pivoted at P<SP>10</SP> and carrying a locking latch P". Extending from the arm P<SP>9</SP> is a plate P<SP>12</SP> supporting a block P<SP>13</SP> to which is pinned a rod P<SP>14</SP> operating the upper matrix feeler P2. A spring P<SP>17</SP> serves to hold the block P<SP>13</SP> in contact with the plate P<SP>12</SP>. The locking latch P<SP>11</SP> co-operates with an arm P<SP>19</SP> depending from the rockshaft A<SP>10</SP>. Thus unless no matrices are detected the latch P<SP>11</SP> remains in the path of the arm P<SP>19</SP> thereby preventing rotation of the rockshaft A<SP>10</SP> by the lever A<SP>15</SP> to shift the magazines. Also if downward movement of the rod P<SP>14</SP> is resisted by a matrix being distorted, the block P<SP>13</SP> will be shifted rearwardly to effect the engagement of a notch P<SP>23</SP> in the block P<SP>13</SP> with a locking plate P<SP>21</SP> attached to the machine frame. Also mounted on the shaft P<SP>4</SP> is a depresser bar Q so that on operation of the hand lever P<SP>3</SP> any raised escapement reed is restored to its proper position. The bar Q acts upon a plate Q<SP>1</SP> supported in the reed frame and engaging notches Q<SP>2</SP> in the reeds. The plate Ql is normally held in its uppermost position by springs Q3. Keyboard mechanism, Fig. 9.-The keyboard slides B3 are mounted in a frame B<SP>17</SP> which contains pivoted cam yokes B<SP>18</SP>, rotary cams B<SP>19</SP>, continuously driven rolls B<SP>20</SP> for operating the cams B<SP>19</SP>, and actuating slides B<SP>21</SP>. The slides B21 may be operated manually or by a teletypesetter unit. Owing to the accelerated rate of operation of the machine the speed of the rolls B<SP>20</SP> is increased to 550 r.p.m. Assembly apparatus, Figs. 8, 9, 12, 13.-When the matrices are released from the magazine they fall into an assembler entrance C and onto a continuously moving assembling belt C<SP>1</SP> passing round a driven pulley C<SP>2</SP> and an idle pulley C3. The matrices are discharged through a chute C<SP>4</SP> and are stacked in an assembler elevator C<SP>6</SP> against a line resistant C<SP>7</SP> by a star wheel C<SP>5</SP>. Owing to the increased rate of descent of the matrices from the magazine the belt is inclined to the horizontal at an angle of about 17 degrees 45 minutes and is run at a higher speed than normal, e.g. 125 inches/second. The star wheel is also driven at a correspondingly higher rate. The pulley C2 is attached to a shaft C<SP>11</SP> carrying a pulley C<SP>12</SP> fast thereon and a loose pulley C<SP>13</SP>. A driving belt C14 may be shifted from one to the other by a hand knob C<SP>16</SP>. Also connected to the shaft C<SP>11</SP> is a toothed pulley C<SP>17</SP> connected by a belt C<SP>18</SP> to a pulley C<SP>19</SP> on the shaft of the star wheel. The driving belt C14 passes over pulleys C<SP>28</SP> so that the auxiliary frame C<SP>21</SP> on which the assembling elements are mounted may be swung about hinges C<SP>22</SP> at the right of the frame. A lug C<SP>23</SP> is provided on the left side of the frame which rests upon a shelf C<SP>24</SP> on the fixed machine frame. The frame is held closed by a rotary lock C<SP>25</SP> formed with an eccentric C<SP>26</SP> fitted in a slot in a latch C<SP>27</SP>. The frame cannot be released by the lock C<SP>25</SP> until the first elevator is raised clear of the bottom end of the latch C<SP>27</SP> which also serves, when the frame is unlocked, to hold the first elevator in raised position. Moulds, Fig. 20.-Owing to the increased rate of operation of the machine the mould disc is given only half a revolution for each complete cycle of the machine thereby bringing into operation alternately two diametrically opposed moulds. The rotation of the mould disc M is effected by a driving pinion M<SP>5</SP> on a shaft M<SP>6</SP> operated through gearing M<SP>7</SP> from a driven pinion M<SP>8</SP>. The pinion M<SP>8</SP> is operated by two gear segments M<SP>9</SP>, M<SP>10</SP> mounted on wheel M<SP>11</SP> secured to the main cam shaft M. The segments M<SP>9</SP>, M<SP>10</SP> each impart a quarter revolution to the mould disc and carry accelerating devices M<SP>12</SP> and decelerating devices M<SP>13</SP> as described in Specification 700,942. The mould disc may be shifted manually by a hand-knob M14. Distributing apparatus, Figs. 1, 3, 26.-The first elevator is operated by a cam mounted on the main camshaft of the machine. Owing to the higher rate of operation of the machine the shape of the first elevator cam is modified so that the timing, relatively to a complete cycle of rotation of the cam, for the movement of the first elevator from casting to transfer position, and for the movement of the first elevator from its upper transfer position, are increased so as to eliminate jerky movements of the first elevator. The removal of the line from the first elevator E into the upper transfer channel F is effected by a pusher F<SP>1</SP> attached to a slide F<SP>2</SP> operated from a cam on the main camshaft. The slide is normally locked in inoperative position by a latch F<SP>3</SP> and is released by the first elevator as it reaches its transfer position. The elevator E is provided with a line resistant F<SP>4</SP>. After the line is removed by the pusher F<SP>1</SP> the line resistant F<SP>4</SP> is restored to its normal position by engagement of a hock F<SP>6</SP> on a bracket F<SP>5</SP>, from which the pusher F<SP>1</SP> depends, with a strap F<SP>7</SP> on the line resistant F<SP>4</SP>. A stop pin F8 limits the rightward movement of the line resistant F4, a friction brake F<SP>9</SP> also being provided. The first elevator may then start its downward movement to line receiving position before the transfer slide F<SP>2</SP> is restored to its leftward position. The timing of the second elevator I<SP>1</SP>, rela