US1268618A

US1268618A - Embossing attachment for printing-presses.

Info

Publication number: US1268618A
Application number: US86449214A
Authority: US
Inventors: Frederick William Reed
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-10-01
Filing date: 1914-10-01
Publication date: 1918-06-04
Anticipated expiration: 1935-06-04

Description

F. W. REED.

EMBOSSING ATTACHMENT FOR PRINTING PRESSES. APPLICATION FILED OCT. 1, 19M.

Patentd Ju e 4, 1918.

2 SHEETSSHEET 1.

g fgheooiw I I I fiii f'wltoi I 2 $5M Quorum F. W. REED.

EMBOSSING ATTACHMENT FOR PRINTING PRESSES.

APPLICATION FILED OCT-1,1914.

; 268,618. Patnted June 4,1918.

2 SHEETSSHEET 2.

l vitmwoeo STATES frntrnnr QFEICE.

rmmmx WILLIAM REED, -or seventeen, "IN'TDIYKNA.

, nmsossme ATTACHMENT-FOR PRTNTING-PRESSES.

To whom it may concern: l-Beit known that LcFBEDERIGK W. REED,

. a citizen-of the United States, residing at *South Bend, in thecounty of St. Joseph and State ofIndianafhave invented certain new "and useful'lmprovementsin Embossing Atntachments for Printing-Presses, of which the following is a specification.

:My invention relates to embossing attach- :ments' for I printing presses, and more particularly to an embossing 'die he'atingplate adapted to be attached to the bediof a print- "ing"press,and'=its object is to. provide a device of this character which will be cheap in construction, effective in operation, which may be mounted in the chase: and attached to the "bed of the printing press without altering the same in any way, and to-prowide the devicewith certain new'and useful :"features "hereinafter more fully described,

and particularlyfpointed out in the claims. In the process of, embossing, it has been .found desirable to haveone of the emboss- Jing Ldies' heated, preferablythe female die, as this-prevents the paper from cracking and'tearing when it is pressed-between the dies. 'It'has-' been common practice to provide ranrembossing press built especially for sthis 'kind of work, in which thebed of the press is adapted to, be :heated by convenient -means and the. embossing die clamped to thefbed receives the heat therefrom. These :machines are necessarily expensive, and bei'cause of -'their expense they can. only be 'Y'afl'o'rded :by zfirms doing a large business. 2Fu'rthermore,'it.iswastefulto heat the en-. -tirebedof the-.printing press when only a small embossing die is used thereon.

PThisinv'ention is adapted to overcome the above-mentioned objectional features by wprovidingsan embossing die heating'platein which'is: embeddedeleotric heating elements by which the plate may be heated'by any convenient'electric current, such as'an electric light current, and this plate'is provided with :means for. .attachin an embossing die 'to itsesurface. :The com ined-,plate:and die are lOf i'a thickness equal to the height, of. ordinary type and the plate may be mounted in I the chase of the printing press and atr'tachedzto the'bed thereofwithout any alter ation of thersame 1, I I

Anotherobject of-the invention is togprozvide-an' embossing die heating; plate embody- 553mg :among ;Dlih! chara ter sti s featur Specification of reefers Patent.

Patented'Ju'ne 4, 1918.

Application fl1ed 0ctober 1,1914. Serial No. 864,492.

"whereby neither the plate nor thebed of the printing press will become unduly heated,

-' and whereby the die may be properly heated without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawin'gs: Figure liis a top plan view ofmy'embossin'g plate showing the same locked within the chase.

I p Z-is'abottoin plan view thereof showing the same removed from the chase and with the'filling elementremoved to illustrate the manner of wiring.

Fig. 3 is an enlarged'longitudinal view taken on the line 3-3 of Fig. 2.

Fig. 4 is a fragmentary detail view illustrating the switch block.

ig.. 5 is an enlarged transversesectional v ew takenon the line 55 of Fig. 1.

F ig. '6 is a detail sectional view taken on the line s e of Fig. 5.

7 is affragmentary plan view illustrating ainodified form for supportingthe scoring device.

Fig.8is a slightly enlarged sectional view illustratingthe split sleeve't'er'minal of the insulating block with the cooperating terminal disposed therein. Referring now more particularly to the accompanying drawings, the character 10 indicates a plate of relatively thin metal .provided with a marginal flange 11 forming a recess 12 on its under side and which flange is offset, as at 13, and recessed at intervals,

as at 1{l,'for apurpose presently explained. .In'the recess '12, on opposite sides of the plate, are sets of transversely disposed spaced strengthening ribs '15. The ribs of one set are preferably arranged opposite the ribs of the other set with the opposing ribs terminating short of one another to form a longitudinal space in which is located a. relatively long longitudinally disposed strengthening 'rib '16 which is spaced from the aforesaid ribs and whose ends terminate short of the strengthening blocks 17. Supporting elements or feet 18 project from the spaces between the ribs, while supporting elements or feet 19 are formed on the

ribs

15 and 16.

The inner faces of the marginal flange and the under side of the plate 10 are coated with non-conducting enamel and flat 'electrical conductors 20 are disposed one on each side of the aforesaid longitudinal rib the aforesaid offset 13 of the metal plate.

In this offset 13 are two

other terminals

25 and 26, the

terminals

24, 25 and 26 preferably gradually decreasing in cross sectional diameter, as shown. These terminals are adapted to removably receive the respective split sleeve terminal sockets'27, 28 and 29 carried in the insulating block 30 which latter is adapted to fit snugly within the offset 13 with its upper face preferably flush with the upper face of the metal block and to which split sleeves the electric conducting wires 31 is secured so that the current may be conducted through. the conductors in the cavity of the metal. block and the latter expeditiously and effectually heated. The

sockets

27, 28 and 29 carried by the insulating block gradually decrease in size so as to effectually cooperate with the correspondingly formed

terminals

24, 25 and 26, by virtue of which the insulating block 30 must be positioned in a certain way'in order to operatively connect the terminals.

After the conductors 20 andthe

electric wires

22 and 23 and the terminals 241-, 25 and 26 are positioned, the recess 12 is then provided with a filling, for instance, two, three or more coats of enamel to thereby close up or fill the recess and embed the electrical conductors and wires therein, these last mentioned coatings of enamel completely embedding the strengthening ribs or

elements

15, 16 and 17, but exposing the feet or supporting elements18 and 19. By virtue of these feet or supporting

elements

18 and 19 projecting beyond the enamel or other filling material, spaces are provided under the plate so that when the plate is fitted on the bed of a printing press, the heat radiating from the underside of the 1 plate may have passage from between the bed and the plate, the air passing out gh the aforesaid recesses 14, whereby flan of each of the aforesaid transverse and lon- I unnecessary heat, instead of being absorbed and retained within the metal plate or between the same and the bed of the printing press, is permitted to pass out through said recesses 14.

Transversely disposed dove-tailed grooves 32 are formed in the upper face of the metal plate and extend entirely across the same and also extend into the transverse strengthening ribs 15, opening out through the side edges of the plate.

A longitudinally disposed dove -tailed groove intersects these transversely disposed grooves and extends into the aforesaid longitudinal rib 16, extending throughout the length of and through the edges OI the plate 10. These dove-tailed grooves render the walls of the transverse and longitudinal ribs comparatively thin, thereby facilitating quick heating of the plate 10, by virtue of heating the air in the channels 32 under the die, incident to the said thin walls.

A plate 33 is countersunk in the marginal of the metal block 10, one at each end gitudinal dove-tailed grooves. Each of said plates 33 may be secured in place by means of screws or other suitable fastenings so that they may be connected or disconnected at will in the event of damage or if other occasion requires removal of the plates.

Fitted in the transverse groove and in said longitudinal groove are pairs of clamping elements 35 which are adapted to engage the sides and ends of the female em bossing die 36 for the purpose of holding the latter firmly on the metal plate 10 for embossing purposes. These clamping ele ments 35 may be moved to clamping position in any suitable manner. One way in which these clampingelements may be moved to clamping position and loosened or tightened is to provide in each of said grooves a air of follower blocks 37. Each follower b ock 37 has a screw threaded bore in which is 11) adapted to operate a screw 38 which is journaled as at 39', in the respective plate 33. On each screw 38 is rigidly secured a turning nut 39 preferably provided with aper- 'tures 40 to receive a wrenching device (not shown) to rotate the screw. Upon rotating the screws 38 the respective followers 37 are moved forwardly and backwardly in the respective grooves according to the turn of the nut 39. Interposed between the followers and the respective clamping elements 35 and slidable in the respective grooves are pieces of printers furniture 4:1. The size of these pieces of furniture depends upon the size of the female clamping die to be clamped on the plate. It would seem clear, therefore, that upon operating the turning nut, the screws are operated to shift the followers, and consequently the furniture 41, so as to firmly clamp the female die plate 1,2es;ere

on the metalplate and thatu on *oppo site-' movement of the "follower =b 'ocks, the Y furniture-and clamping elements 35 may" 1 and expeditious manner in whieh the heat BEST AVAlLABLE COPY -thei'electrict circuit=to regulate the'heatmf 6-6 the plate,- but in view of the "economical '2 be I'ifOVd-&Wayf1'OIhtliB female embossing ing inayebe accompli'shedg the rheostatis die-soth'at the' iatter inay be readily removed -notordinarily, if at all, necessary;- In an frolir t'heheatingplate 1'0. It is clear also eventfby means 'ofa SWitClI"( HOt 1ShOWIQ 7 0 that in; event of breakage of a" followenor a any two 'of the three wires =31 inay be 'cutrw screw or "a t-urnin'gnutfl'repair' may be in or out of the electrio-circuit so that the may be secured by means of screws or other suitable fastenings 43 to the followers along" one side of the heating plate, whereby upon operation of the turning nut 39 this scoring device may be adjusted accordingly toward and away from the female embossing die. Independent adjustment of this scoring device 42 may be had by providing the respective follower blocks with grooves 44. If preferred, the scoring device 42 may be wholly independent of the follower blocks by providing grooves 45 in the heating block and mounting blocks 46 therein which are adapted to slide in the grooves 45, the scoring device 42 being, in such event, secured by means of a screw or other suitable fastening 47 to the blocks 46.

The assembled plate and die have a combined thickness which is just type-high or equal to the height of ordinary type which enables the block and die to be used in place of the type on the bed of an ordinary printingpress. The block is adapted to be clamped in the chase 48 of the press by means of the ordinary printers furniture 50 and quoins 51 and the whole mounted on the bed of the press as though it were type. The male die member is attached to the platen of the press and the device is then ready for operation.

This device provide an extremely simple and cheap apparatus for heating embossing dies, there being no waste heat and it being possible to effectually heat the block with a minimum amount of heating medium. The material of which the block is formed is relatively thin, as has been stated, and by virtue of the transverse and longitudinal grooves, the walls of the strengthening ribs are comparatively thin, whereby radiation of the heat is expeditious with a minimum amount of heat. The device is particularly well adapted for heating small dies and may be sold so cheaply that it can be afforded by printers doing comparatively little embossing work who cannot afford to buy the large and expensive machines built expressly for embossing purposes.

If desired, a rheostat may be included in threecircuits-of wiring in the heater: may be utilized for high, Jhediun' and low heating, a

as may be' desired: F orinstance,.for high 'f5 heating-the current maybe through the cir-' wit a when the F heater is' subjected 'to the 1 heat of the current-. For mediumi heating 1 1 the current may pass through the circuit y, when" about two thirds of the heating olement'is included in the circuit. For low heat the current passes through the circuit 2, which includes about one third of the heating element.

What is claimed is:

1. An electric heater of the type described comprising a metal plate provided with a marginal flange, opposite sets of transverse ribs arranged on the under side of the plate within said flange, the ribs of each set being spaced from one another and at their inner ends terminating short of the ribs of the opposite set, a longitudinally disposed rib arranged between the sets of transverse ribs and spaced therefrom, electric conductors arranged one on each side of the longitudinal rib, each conductor having looped portions extending outwardly and lying between the transverse ribs, electrical connections between the said conductors, and means whereby an electric current may be supplied to said electric connections to heat the plate.

2. An electric heater of the type described comprising a metal plate provided with a marginal flange, opposite sets of transverse ribs arranged on each side of the plate within said flange, the ribs of each set being spaced from one another and at their inner ends terminating short of the opposite set, a longitudinally disposed rib arranged between the sets of transverse ribs and spaced therefrom, electric conductors arranged one on each side of the longitudinal rib, each conductor having looped por tions extending outwardly and lying between the transverse ribs, electrical connections between the said conductors, and means whereby an electric current may be supplied to said electric connections to heat the plate.

3. An electric heater of the type described comprising a metal plate provided with a marginal flange, electric conductors adjacent the plate within said marginal flange, said conductors having projecting looped portions, electric connections between said conductors, means whereby current may be supplied to said electric connections to heat the plate, and said marginal flange having recesses to provide passages for the escape of heat from under the plate.

4. An electricheater of the type described, a metal plate provided with a marginal flange having an inwardly directed off-set, opposite sets of transverse ribs arranged on the underside of the plate within said flange, the ribs of each set being spaced from one another and at their inner ends terminating short of the ribs of the opposite set, a longitudinally disposed rib arranged between the sets of transverse ribs and spaced therefrom, electric conductors Copies of this patent may be obtained for arranged adjacent the longitudinal rib, each having looped portions extending between the transverse ribs, electrical connections between the said conductors, terminals mounted in the ofl-set of the marginal flange, and an insulator-block adapted to fit in said off-set and carrying terminals for electrical connection with the aforesaid terminals.

In testinionywhereof I aflix my signature in presence of two witnesses.

FRED WILLIAM REED. Witnesses:

FRED C. KLEIN, WM. BENDER, Jr.

five cents each, by addressing the Commissioner oi Patents, Washington, D. G.