US811283A

US811283A - Seal-press.

Info

Publication number: US811283A
Application number: US9114802A
Authority: US
Inventors: Lewis A Foote
Original assignee: Chicago Car Seal & Manufacturing Co
Current assignee: Chicago Car Seal & Manufacturing Co
Priority date: 1902-01-25
Filing date: 1902-01-25
Publication date: 1906-01-30
Anticipated expiration: 1923-01-30

Description

PATENTED JAN. 30, 1906.

.Ziewba J4 1505a,

L. A. FOOTE.

SEAL PRESS.

APPLICATION FILED JAN. 25. 1902.

' Wag/6 NIlE S.

LEWIS A. FOOTE, OF CHICAGO, ILLINOIS, ASSIGNOIt TO CHICAGO OAR SEAL & MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A COR- PORATION OF ILLINOIS.

SEAL-PRESS.

Specification of Letters Patent.

Patented Jan. 30, 1906.

To all whom it may concern.-

Be it known that I, Lnwrs A. Foo'rn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Seal-Presses, of which the following is a specification.

My .invention relates to improvements in seal-presses for use more especially in riveting or looking together the ends of a car-sealing shackle and impressing symbols or the like upon the rivet-heads or looking material.

My object is to provide a seal-press of an improved construction which will insure the making of a clear impression of the symbol or the like upon the riveting or looking material or shackle in each operation and which will be particularly strong, durable, and desirable for use as a hand. seal-press. Sealpresses of this class are used extensively by railway employees for sealing cars, and being subject in many cases to hard. usage and throwing about it is necessary that any parts thereof which might be injured should be well protected.

In the drawings, Figure l is a perspective view of a seal-press of my improved. construction, showing it in the operation of sealing the ends of a shacklestrip; Fig. 2, a broken longitudinal section through the head portion of the device, and Figs. 3 and 4 enlarged perspective views of details of the construction.

A is the stock or main handle portion of my improved seal-press, terminating in the head B. In the forward side of the head is a pocketabetween side walls or guards b 7), provided with shackle receiving and holding guide-slots c of a width corresponding with the depth of the pocket a. Fitted in the base of the head B at the center of the pocket a is a base-die O, the top of which is in a plane just below the plane of the guide-slots c. In the head portion above the pocket or is aguide-opening d for a die-plunger D, which moves up and down in said. guide-opening. In the rear side of the die-plunger are serra tions a, forming a ratchet, the teeth of which present abrupt shoulders at their upper sides,

as shown, and in the upper part of the dieplunger on its rear side is a socket to receive the end of a leaf-spring g,fastene as shown, upon the stock A. In the head and stock portion just above the guide-slots c is a socket h, in which works a spring-actuated plunger or dog 'i, adapted at its outer end to engage the ratchet e and hold the die-plunger against upward movement. The spring 9 tends norrnally to raise the die-plunger. The socket it crosses a guide-opening 7c in the stock portion at the head and extends parallel with the guide-opening d. The (loge is formed with a ratchet engaging head portion i rear cylindrical body portion i and intermediate reduced neck portion '11". On the body portion at opposite sides of the neck portion are cams i i. The dog crosses the guide-opening is at its neck portion "5 E is a sliding dog-releaser comprising a stirrup portion Z and parallel fingers Z, recessed on their rear sides to present cams 1 above which are straight surfaces Z The finger portion Z fits in the guide-opening 7c and straddles the neck '5 of the. dog. The spring 9 passes through the stirrup portion Z, and the cams i of the dog rest in the fingerrecesses beneath the cams Z On opposite sides of the head B are upwarcbextending ears m m, perforated to receive a pin a, on which is fulcrumed a leverhandle F. The head portion of the lever or handle F near its fulcrum is formed with a cam p, terminating at the end of the lever in a lip 13 and at its other end terminating in a strikin g-surface p In operation the device is opened by raising the handle or lever F to the position shown in Fig. 2, and both ends of the shackle X to be sealed are passed, as shown in Fig. 1, into the guide-openings 0, whereby the rivet or the like will register between the base-die and the dieplunger. The sealing or looking operation is performed by pressing the handle F downward, causing the cam 19 to press upon the upper end. of the die-plunger and force it downward. As the die-plunger descends the teeth of the ratchet slide over the dog; but the latter by engagement with the ratchet prevents rise of the die-plunger in the event that pressure is relieved upon the handle F. As the die-plunger nears the point of lowest descent, wherein. it will complete a perfectimpression upon the material between it and the base-die, the surface 72 of the handle F engages the top of the stirrup l and forces the part E downward, whereby the cams Z engage the cams i on the dog and press the latter backward to disengage the dog from the ratchet. When the cams Z have passed the cams i the latter bear against the straight surfaces Z of the fingers Z. This disengagement of the dog and ratchet permits the die-plunger when the handle F is raised to rise to the position shown in Fig. 2 under the action of the spring g. As the spring 9 nears the upper limit of its rise it engages the under side of the top bar of the stirrup Z and raises the piece E until the cams Z engage the cams i*, when the resilience of the spring-dog will spring the piece E upward to the position shown in Fig. 2 and the dog will engage the ratchet c.

It will be seen from the above descri tion that the die-plunger will not rise until a ter it has been pressed downward to a position wherein it makes a perfect impression upon the seal, and it cannot be disengaged from the seal before this impression has been made. The handle F is at all times free to swing upon its pivot n irrespective of the position of the die-plunger. This will prevent the operator from removing the device from the seal before a perfect impression is made by wrenching the handles apart, as has fre-' quently happened with the seal-presses hitherto employed. The part E, dog t, and spring 9 are all housed and will not be injured by the throwing about of the implement.

While I prefer to construct my improved die-press throughout as shown and described,

it may be variously modified in the matter of details of construction without departing from the spirit of my invention as defined by the claims.

It is considered, broadly, novel to provide means for insuring complete movements of the dies comprising a set of ratchet-teeth and a pawl, one of which reciprocates with the reciprocating die and the other of which is arranged at one side of the guide for the reciprocating die.

What I claim as new, and desire to secure by Letters Patent, is

1. In a seal-press, the combination of a stock, a chambered head upon the stock, a die-plunger movable in said head, a die-plunger-operating lever fulcrumed upon said head, a die-plunger-retracting spring, a ratchet on the die-plunger, a dog operating normally to engage said ratchet, and a movable dog-releaser actuated, in the approach of the die-plunger to its position of final impressment, to disengage the dog from said ratchet, substantially as and for the purpose set forth.

2. In a seal-press, the combination of a stock, a chambered head upon the stock, a die-plunger movable in said head, a die-plunger-operating lever fulcrumed upon said head, a die-plunger-retracting spring, a ratchet on the die-plunger, a dog operating normally to engage said ratchet, and a movable dog-releaser actuated, in the approach of the die-plunger to its position of final impressment, to disengage the dog from said ratchet, the said lever being movable independently of the die-plunger when the same is held by engagement of the dog with the ratchet, substantially as and for the purpose set forth.

3. In a seal-press, the combination of a stock, a chambered head upon the stock, a die-plunger movable in said head, a die-plunger-operating lever fulcrumed upon said head, a die-plunger-retracting spring, a ratchet on the die-plunger, a dog operating normally to engage said ratchet, and a movable dog-releaser in the path of said spring actuated, in the approach of the die-plunger to its final position of impressment, to disengage the dog from said ratchet, and actuated by the spring in the final movement of the die-plunger toward its retracted position to release said dog, substantially as and for the purpose set forth.

4. In a sealpress, the combination of a stock, a chambered head upon the stock, a die-plunger movable in said head, a plunger operating lever fulcrumed upon said head, a die-plunger-retracting spring, a ratchet on the die-plunger, a dog operating normally to engage said ratchet, and a movable dog-re-' leaser in the path of said lever and actuated thereby in the approach of the die-plunger to its position of final impressment, to disen gage the dog from said ratchet, substantially as and for the purpose set forth. I

5. In a seal-press, the combination of a stock, a chambered head upon the stock, a die -plunger movable in said head, a dieplunger-operating lever fulcrumed upon said head, a die-plunger-retracting spring, a ratchet on the die-plunger, a dog operating normally to engage said ratchet, and a movable dog-releaser in the paths of said lever and said spring, actuated by said lever in the approach of the die-plunger to its position of final impressment, to disengage the dog from said ratchet, and actuated by said spring in the final movement of said die-plunger toward the extreme retracted position to release said dog, substantially as and for the purpose set forth.

6. A seal-press having a reciprocable die I provided directly with a ratchet device for insuring complete movements of the die, in combination with a pawl engaging said ratchet device.

7. A seal-press having a reciprocable die provided with a ratchet device which moves reciprocatingly with the die, in combination with a spring-held pawl engaging said ratchet device, and a relatively fixed support for said pawl.

8. A seal-press having a reciprocable die provided with a plurality of ratchet-teeth ar- IIO ranged parallel with a side of the die and reciprocatingly carried with the die, said teeth permitting the pawl to slip over them in the closing operation of the press, a pawl engaging said teeth to prevent return of said die before the pressing operation is completed, and means whereby the pawl is released to permit the die to return to its normally open position, for the purpose set forth.

9. A seal-press comprising a lever equipped with a head provided at its base with a fixed die and above said die with a with a fixed die and provided above said die with a guide for a reciprocating die and in the rear of said guide with a pawl-receiving recess, a lever pivotally joined to the upper portion of said head and provided with a dieactuating cam, a spring tending to hold the dies normally separated, a reciprocable die moving in said guide, a series of ratchet-teeth moving reciprooatingly with the reciprocable die and located adjacent to said recess, a pawl confined in said recess and engaging said ratchet-teeth, and a spring having a bearing in said head and serving to hold the pawl in engagement with the ratchet-teeth.

11. In a ratchet seal-press, the combination with the body of the press, and with a reciprocating die movable within said body, and with a cam-carrying lever-handle and a retracting-spring for reciprocating said die, of improved means for insuring complete movements of said. die, said means consisting of a ratchet device movable lengthwise with said die and a pawl having a relatively fixed support in said body of the press.

12. A seal-press comprising a lever carrying a head provided with a fixed die and with a guide for a reciprocable die, a lever pivoted to said head and provided with a die-actuating cam, a reciprocable die within said guide actuated by said cam, a spring tending to retract said reciprocable die, ratchet-teeth moving reciprocatingly with said reciprocable die, a pawl located in a recess in said. head adj acent to said ratchetteeth, and a spring having a bearing in said head and serving to hold said pawl in engagement with said ratchetteeth.

13. A seal-presscomprising a lever carrying a head provided with a fixed die and with a guide for a reciprocable die, a lever pivoted to said head and provided with a die-actuat ing cam, a reciprocable die within said guide actuated by said cam, a spring tending to retract said reciprocable die, and means for insuring complete movements of the reciprocable die, comprising a set of ratchet-teeth and a pawl engaging the same, one of which reciprocates with the die and the other of which is arranged at one side of said guide, said pawl being releasable when the dies are closed, for thepurpose set forth.

LEWIS A. FOOTE.

In presence of WM. B. DAVIES, ALBERT D. BAOOL