US785374A

US785374A - Type-mold.

Info

Publication number: US785374A
Application number: US20653004A
Authority: US
Inventors: Frank Hinman Pierpont
Original assignee: LANSTON MONOTYPE MACHINE CO
Current assignee: LANSTON MONOTYPE MACHINE Co
Priority date: 1904-05-05
Filing date: 1904-05-05
Publication date: 1905-03-21
Anticipated expiration: 1922-03-21

Description

No. 785,374; PATENTED MAR. 21, 1905.

Y F. H. PIBRPONT.

TYPE MOLD.

APPLIUATION FILED MAY 5, 1904.

2 SHEETS-SHEET 1.

mucnfoz Wduzowa 532% WM UNITED STATES Iatented March 21, 1905.

PAT NT- OF ICE.

\FRAN'K'HINM'AN PIERPONT, or HORLEY,ENGLAND, ASSIGNOR TO LANSTON MONOTYPE MACHINE COMPANY, OF. PHILADELPHIA, PENNSYLVANIA,

A CORPORATION OF VIRGINIA.

TYPE-MOLD.

S'Z PE CIFICATTON' forming part of Letters Patent No. 785,374, dated March 21, 1 905.

' Application filed my 5, 1904. Serial No. 206,530.

To It whom it may concern:

Be it known that I, FRANK HINMAN PIER- PONT, a citizen of the United states residing at Horley, in the county of Surrey, England,

have invented certain new and useful Irnprovements in Type-Molds; and I do hereby declare the following'to be a full, clear, 'and exact description of the same, reference being had to the accompanying drawings, form- 1o ing a part of this specification, and to the figures of'reference marked thereon.

This invention relates to improvements in molds for type-casting machines, and has for its principal objects to preserve theparallelx 5 ism of the walls .of the mold-cavity under the varying conditions of adjustment and use, to prevent the distortion heretofore experienced as incident to wide variationsof tem perature or irregularities in the supportingsurface, and to render adjustment for different body sizes easy and certain. I

To which end the invention consists in the construction, com binations, and arrangements of parts hereinafter fully described, the novel features being pointed out in the appended claims.

1n the accompanying drawings, illustrating a preferred form of embodiment of said invention, Figure 1 is atop plan view of the mold. Fig. 2 is a view in perspective of the mold with cross block removed. Fig. 3 is a similar view of the cross-block. Fig. 4-is an end view. Fig. 5 is a section on the lineA A, Fig. 1. Fig. 6 is a section on the line B B,

Fig. 1. Fig. 7 is a section onthe line C C,

Fig. 1.

The same numerals designate like parts in the several figures. I

The improvementsare; illustrated in connection'with'and as applied to the mold of the monotype-casting machine, -wherein 1 is the base or supporting frame; 2 and 3, the side blocks; 4, the cross-block; 5, the moldblade', '6, the movable gate carried by the cross-block; 7, the gageblock-interpo'sed be tween the side blocks in a recess in the moldblade, said block serving to gage'one dimension of the mold-cavity, bring the opposing torting and disturbing element.

faces of the side blocks into parallel relation, and form the top guide for holding themold- 5 blade down to position; 8, the adjustable mold blade stop, and 9 the side-block support or water-base.

The side blocks are separately adjustable, both transversely and longitudinally of the mold-blade, to vary the set and center or position the mold-cavity'relativelyto the centering-point of the matrices. The mold-blade is shifted longitudinally by automatic means for varying one dimension of the mold-cavity to suit diiferent characters of the same font or set, and the cross-block is reciprocated to alternately cover and uncover one side of the mold-cavity, so that after the cast is made the type may be ejected'by a forward move- 5 ment of the mold-blade.

By substituting mold blades and gage- .blocks of different dimensions the mold may be adapted for different sets of type.

'As compared with prior molds of the same class the present differs from and is an improvement in the particulars hereinafter setforth, having for their objects to so arrange and apply the sustaining and adjusting devices. for the side blocks and cross-block as to 7 5 minimize the eifeet of temperature as a dis With these ends in view the base -1 is fornied with a flat body portion and integral flanges or abutments 10 11, extending in parallel relation along opposite edges of the body. The rear .abutment 10 is slotted for the passage of the mold-blade 5, and in the front abutment 11 are threaded two set-screws 12, whose ends engage seats in the front abutment plate or gib 5 13, forming the front guide for the crossblock in its movements across the ends of the side blocks, the latter in conjunction with the front edge of the water-base 9 serving as the rear guide for said cross-block;

The base of the cross-block is formed by two gate-blocks 14, slightly wider than the cross-block and projecting beyond one side -thereof beneath the side blocksinto engagement with the side-block support 9. The p'roximateflendsof the gate-blocks are sepa- I j rated to form a et-opening; through whlch the metal is conducted from the nozzle-seat to the mold-cavity between the side blocks, one side of said jet-opening being formed by the end of the gate 6, the latter adapted to reciprocate between the gate-blocks to discharge the jet therefrom when the cross-block is reeiprocated to cut off the jet and advance the latter opposite the discharge-opening in the cross-block support.

In the upper face ofthe base 1 is formed a groove for the reeeptionof a plate 15, the latter containing the nozzle-seat 16 and a camgroove 17 to receive a projection 18 on the jet-slide for reciprocating the latter as the cross-block is moved to cut off the jet and discharge the latter through an opening 19 in the base. The plate is confined in position by screws entering from below the base 1, so

front guiding-surface, one which will accommodate itself to variations produced by changes in temper re and at the same time preserve the closeness of joint at the mold-cav-- ity necessary to prevent the escape of metal and the formation of fins on the type-bodies. 1n the preferred construction this elastic bearing member is applied in the form of a shoe 20, supported in a recess in the cross-block, with its face projecting slightly beyond the latter to engage the front abutment plate or 'gib 13, a spring 21 being interposed between said shoe and the end of the recess to hold the shoe projected and permit it to yield in either direction. The shoe 20 is preferably located opposite the casting-point on the cross-block.

To adapt the cross-block for type of different height when used in connection with'substitute side blocks and mold-bladesg-a hardened-steel block 22 is inserted opposite the casting-point; said block being closely fitted and held to place by a screw 23 or equivalent means applied to the stem thereof. This block 22, in conjunction with slightly-raised portions of the mold-blade and side blocks, forms the seat for the matrix when the latter is applied and clamped 'in position to close the end of the mold-cavity. By repeated applications of the matrices this seat becomes worn; so that a tight joint cannot be formed, and as the lapping of the surface cannot be permitted to any extent without thereby varying-the height of the type produced it becomes necessary to replace the members upon which said seat-is formed. Heretofore it has been customary to replace the side blocks, mold-. blade, and upper section of the cross-block; but by providing the latter with the-detachable block 22 the same cross-block can be utilized in connection with different side blocks and mold-blades, and thus the expense of a new cross-block avoided.

The water-base 9, so called because it contains the water-channels (not shown) for reducingthe temperature of the mold, is fastened, as usual, to the base 1, and to it are secured, as by screws 24, two

end abutmentblocks

25 and 26, carrying the adjusting devices for the

side blocks

2 and 3.

The adjusting devices for positioning side block 2 in a direction transverse to the moldblade include two rigid supports carried by abutment-slide 25 in the form of adjustingscrews 27, while those for a'similar adjustment of side block 3'include a yielding or spring-pressure device engaging side block 3 at a point intermediate screws 27 and comprising in the present instance a spring 28, located within a recess in abutment-block 26 between an ad justing-screw 29 and a movable shoe 30, the latter projecting beyond the abutment into engagement with the side block.

Owing to the connection established between side block 2 and its abutmentblock 25, it is important that the latter shouldbe accurately and firmly anchored to thissupportingbase 9 in a manner to prevent twisting ordis' tortion under variations of temperature, and this is accomplished by forming registering grooves in the proximate faces of the abutment-bloek 25 and its support parallel with the mold-blade andinserting therein an alining key or bolt 31, upon which the parts are held by clamping-screws 32. Preferably the opening between the block and support is of hexagonal or other angular form, and after the parts are clamped in position byscrews 32 the'fiat faces of the opening are lappedto gage with acircular lapto receive a hardened and lapped key 31, which bears uniformly upon the six seats thus provided.

It is to he noted that the cross-block does not contact with the abutment-block 25. Consequently expansion and contraction of the latter in a direction parallel with key 31 will not affect the mold-cavity or the movement of the cross-block. 1

The adjustment of

side blocks

2 and 3 in a direction longitudinally of the mold-blade is accomplished through the medium of pins 33, hearing eccentrics 34, the latter fitted to a' groove 35, formed in the water-base 9 and extending longitudinally thereof parallel with the cross-block. Each block is equipped with one of these pins 33, fitted to a bearing therein and provided with a holding device, such as set-screw 36.. By this arrangement the adjustment or setting of the side blocks relatively to the cross-block may be efiected without interfering withlateral movements'incident toadjustment or expansion. Similar adjusting devices in the form of eccentricadjustment to permit movement.-

moved from thecross-block, the latter taking tel-posed between Abutmentr'block 26 is set fractionally reits side bearing on the ends of side blocks 2 and -3, which are made comparatively narrow to minimizetheefi'ectof distortion under the influence of temperature, both of thecrossblock 4 and of'the water-base 9.

To each abutment-block is secured a spring cover-plate 37, overlapping and bearing upon the top of its side block 2 or- 3 to holdthe latter down in place upon the supportingblock 9.

The adjustment of gage-block 7 into working contact with the mold-bladed; is effected through the'medium of a spring-pin 38,-se-- cured at one end to abutment-block and passing through apertures in the side blocks 2 3, gageblock 7, and shoe in abutmentblock 26. This pin takes a be'aring'on the gage-block and its free end stands opposite a set-screw 39in abutment-block 26, by means of.which the pin is flexed and the gage-block seated upon the mold-blade.

parts after adjustment it will pass the screw.

Washers 40, of felt or similar material, arein the side block 2 and its abutment-block 2 By mounting the side blocks devices, upon an integral'block 9, without otherwise connecting them withv the base 1, through which themajonportion ofthe'heat' is transmitted, not only are saidpartsmaintained at amoreequable temperature, but the disturbances inciden t-to'ditfe rential rates'of ex pansion are reduced to the minimum, and such as do occur. tending to'cr'amp or relieve the side bearings for the cross-block are rendered} neutral by the action of the the'e'lastic bear- -ing interposedbetween .block forming onew'all of the mold-cavity,

its front abutment-plate.

Having thus described invention, what I claim asnew, and desire to, secure byv Letters Patent," is

l l Amold fortype machines itSfdQf scribed comprising a supporting frame or base provided with a'nozzles eat,' a movable crossand two sideblocks with an intermediate mold- I blade forming the remaining side walls of said mold-cavity, said side blocks and mold-blade being attached to a side-blocksupport fastened to the hase'and without other connection with the latter.

guided upon the side-blocksupport; two side The end otthef pin 38 is tapered, so that in reassemblingthe with a nozzle-seat; a cross-bloclcmovable in guides onsaid base; a side-block support detachably secured to said base; and side blocks .port, and adjusting and retaining-devicesior said side blocks mounted upon said side-block support independently of the base. 4

4. The combination, to form a mold such as described, of the following elements, to wit: a base provided with a nozzle-seat and an abutment; a side-block support provided with abutments;- a cross-block guided between the sideblock support and the base-abutment; an elastic bearing interposed between the base-abutment. and cross-block, a movable mold-bladeblocks seated upon said supportia plurality of bearings carried by one side-block abut- 'ment; andan elastic bearing carried by the other. side-block abutment;

5. In a type'rmold such as described, the com- .o 9 bination with the. side blocks, gage, and mold- 'blade,"oi' the side-block support carrying two abutments between which the side blocks are received, one of said abutments provided with "a plurality'of bearings and the other with a spring-actuated shoe.-

- 6.; In atype-mold suchas described,the combination with the base, sideblocks and interposed mold-blade and gage-block, of aside- 1 1 block support independent of the base'and loo 2 and'3 and mold-blade 5, togetherwith their positioning provided with abutment's embracing said side blocks, one abutment carrying ai'plurality of adjustable bearings and the other a springpressed shoe between which members the side blocks and'mold-blade are located and take -their bearings-upon said support.

7 Ina mold such as described the combina- .tion' with'the base,-v the side-block support and.

the side blocks and mold-blade mounted upon I said support, of the gage-block interposed be- 11c tween the side} blocks, two abutments detachably secured Y to said support, a pluralityof Irigid-bearings carried by onefof'said abut:

,ments and"a spring-actuated' shoe carried by the otherabutment; a'spring-pin secured to 1 one offs'aid'abutuients passing-through open ings*in the side blocks andga'ge and into-the {opposite abutment fin positioil to be engaged jgby adjustingdevices carried thereby. I

. 8 -;I n'aty.pe'-mold suchas described the com- 1 2o bination with the reciprocating cross block provided .withla' movable gate ,'of the grooved cam '-plate seated in the base andprovided with a nozzle-seat. 3 l

7 9. In a type-mold such as described the coin- I 2 5 bination with the side blocks, moldi bladeand gage-block. of the side-block abutments, the

spring-pin secured to one of said abutments and extending through the side blocks and gage into the opposite abutment, and the set- I30 screw engaging the free end of said pin, for ad justmg the gage-block upon the mold-blade.

10. In a mold such as described the combination with the side blocks adjustably mounted upon the side-block support, of the spring vcover-plates engaging said blocks to retain them in position.

11. In a mold such as described the combination with the side blocks and the abutment-s.

12. In a mold'such as described the combination with the mold-blade, gage, side blocks,

and side-block abutments, of the set-screws carried by one abutment for positioning one side block, and the spring-actuated shoe carried by the other abutment and operating upon its side block, to position the latter.

13. In a type-mold such as described the combination with the side blocks and their support of the eccentrics carried by said side blocks and engaging bearings in the support.

H. In a type-mold such as described the combination with laterally -adjustable 'side blocks seated upon an integral support,'of means for eti'ecting longitudinal adjustments of said blocks the same comprising a revoluble eccentric-pin carried by the block and engaging the support.

15. lo a type-mold such as described, the

combination of the following elements, to wit: abase; side blocks with interposed mold-blade carried by an integral support detachably secured to the base; adjusting devices carried by said support for positioning the side blocks;

a reciprocating cross-block supported upon the ing the side walls of the mold-cavity, of the side-block support provided with a groove parallel with the line of movement of the crossblock, and the eccentrics carried by the side blocks and engaging said groove.

17 In a type-mold such as described, the combination with the cross-block, side blocks and mold-blade, of the side-block support provided with means for positioning the side blocks in a direction parallel with the movement of the cross-block, said support being also provided with agroove parallel with the cross block in which are engaged eccentrics carried by the side blocks for positioning the latter in a direction substantially parallel with the moldblade.

FRANK HINMAN PIERPONT. Witnesses:

-ARTHUR NIBLOCK,

WALTER E. ROCHE.