US1266346A - Semaphore-blade grip. - Google Patents

Description

H. B. TAYLOR.

SEMAPHORE BLADE GRIP.

APPLICATION FILED Auw?, 1916.

Patnted May14,1918.

narran sraras ramener ortica.

HERBERT B. TAYLOR, OF WESTFIELD. NEW JERSEY. ASSIGNOR TO HALL SWITCH & SIGNAL C0., A CORPORATION OF MAINE.

SEMAPHORE-BLADE GRIP.

Application filed August 17, 1916.

fo all 'whom t may conce/rn:

Be it known that l, HERBERT B. TAYLOR, a citizen of the United States, and a resident of the town of Westfield. county of Union, and State of New Jersey, have invented certain new and useful Improvements in Semaphore-BladeGrips, 'of which the following is a specification. y

My invention consists of certain new and useful improvements in semaphore blade grips and more specifically in the novel means of attaching the semaphore blade grip to the semaphore mechanism shaft. This means has a number of advantages over the old method of attachment, such as avoiding the destruction of the shaft bearings upon n the removal of the semaphore bladey grip from the shaft, on account of the pounding which was necessary to accomplish this in the old form of semaphore blade grip.

The invention further eliminates the trouble heretofore experienced due to rusting of the semaphore blade grip to its shaft often necessitating the breaking of the same to remove it from its shaft.

Another object ofthe invention is to enable a maintainer to loosen the blade grip and then to use both hands in the removal of the same. This is a vitalfeature as the blade grip is of considerable weight. Defect of other blade grips in this respect has undoubtedly been the cause of many accidents.

A further advantage in this invention is in the fact that broaching of tapering holes is absolutely eliminated and the blade grip will always be tight upon its shaft and will not be subject to breakage at this point, due to lost motion, as in the old type of blade r1 a ther novel features and advantages will be apparent from the accompanying description and will be more specifically described and claimed in the appended claims which form a part of this speciiication.

Referring to the figures on the accompanying drawing, Figure 1 is a front elevation of one form of the semaphore blade grip embodying my invention.

Fig. 2 is a partial section of the same through A-A of Fig. 1.

Fig. 3 is a section through B-B of Fig. 1. with the bolt removed.

Fig. 4 is a front elevation of a semaphore blade grip showing a modified form of my invention.

Specification of Letters Patent.

Patented May 14, 1918.

serial No. 115.559.

Fig. 5 is a section through C--C of Figa.

Fig. 6 is a section through D-D of Fig. i with the bolt and spring removed.

Fig. 7 is a side elevation of a complete signal mechanism with my invention thereon.

Referring to the hgures, I show a semaphore blade (1) attached by means of bolts (2) by av pressed steel spectacle carrying member (3). This is attached by means of bolts (4) to a main casting which has a flat 'upper face (6) in the center of which a 90 degree V shaped groove (7) is formed. A corresponding clamp casting (8) is arranged with a fiat under-face (9) and a cooperating 9() degree V shaped groove (10) arranged to act in cooperation with the V shaped groove (7) and thecasting (5) to form a clamping jaw when these two castings are suitably clamped together'. The casting (8) is provided with bolt'holes (11) arranged to aline with the bolt holes (12) in the casting and on the underside of bolt holes (12) in the casting (5) openings (21) are provided through the casting to permit of the insertion of nuts (13) in such a manner that they cannot turn. The shaft (14C) of the signal mechanism is provided with a square section (15) and a suitable head (16). It can be seen from the above description that if the bolts (17 are slackened that the castings (8) and (5) may be separated sufficiently to allow the head (16) Ato slide in between the V shaped grooves (7) and (10). If these bolts (17) are now drawn up it will be seen that the whole device will be rigidly clamped to the square section (15) of the shaft (1li), the head (16) making it impossible for the device to slide off the end of the shaft.

In Fig. 4 I show a modified form of construction as follows -There is a recess (18) formed in the upper casting (8) to take a spiral spring (19) about the shank of the bolt (17) and so arranged to press against the face (5) of casting (5) and the face (20) of the recess (18).

The object of these springs (19) is to force the castings (5) and (8) apart when the bolts (17) are slaclrened and thereby facilitate the removal of the semaphore from the shaft.

From the foregoing description, it will be seen that I have provided a very simple and convenient construction which will greatly facilitate the placing and removal of semaphore blades in the field, which up to the present time has been a considerable sourcel of trouble.

l do not wish to be restricted to the specitic form as herein shown, as it is obvious that a considerable number of modifications can be made in the design of the apparatus without departing from the spirit of the invention.

Having described my invention what l claim as new and desire to secure by Letters Patent is l. In combination with a railroad semaphore mechanism, mechanism shaft, a semaphore, and a semaphore blade grip coinprising two parts adapted to be clamped together to ret-ain the semaphore upon said mechanism shaft, clamping means and means incorporated in the blade grip for :forcing said parts apart upon the slackening of said clamping means.

2. ln combination with a railroad semaphore mechanism, a semaphore, an operating shaft, a squared section formed between two shoulders and adjacent the end of said shaft, and a semaphore blade grip Comprising two `parts adapted to be clamped together to retain the semaphore upon said shaft, clamping means and means incorporated in the blade grip for forcing said parts apart upon the slackening of said clamping means.'

3. In combination with a railroad semaphore mechanism, a semaphore, an operating shaft deformed adjacent the end thereof to prevent rot-ation thereon, and a semaphore blade grip comprising tw@ parte adapted to be clamped together to retain the semaphore upon said shaft, clamping means and means incorporated ,in the blade grip Lassalle for forcing said parts apart upon the slackening of said clamping means.

+L. ln combination with a railroad semaphore mechanism, a semaphore, an operatI ing shaft, a squared section formed between two shoulders and adjaceniL the end of said shaft, a semaphore blade grip comprising two Co-acting parts having V shaped grooves formed therein and adapted to fit upon the squared section between said shoulders, and bolts adapted to clamp the eo-acting parts together to retain the semaphore upon said shaft, and means incorporated in the blade grip for forcing said parts apart upon the slaclrening of said clamping means.

ln combination'with a railroad sem-aA phore mechanism, a semaphore, an operating shaft deformed adjacent the end thereof to prevent rotation thereon, a semaphore blade grip comprising two parts adapted to be clamped together to retain the semaphore upon the shaft, and means incorporated in the blade grip for forcing said parts apart upon the slaokening of the clamping means.

6. in combination with a railroad semaphore mechanism, a semaphore, an operating shaft, a squared section formed between two shoulders and adjacent the end of said shaft, a semaphore blade grip comprising two flo-acting parts haif'ing v shaped grooves formed therein and adapted to i'it upon the squared section between said shoulders, bolts adapted to clamp the coacting parts together to retain the semaphore upon the shaft, and means comprising springs for forcing said parts apart upon the slaclrening of said bolts.

ln testimony whereof, l have signed my name to this specification.

H. B. TAYLOR.

@epics et' this patent may he obtained for ive cents each, oy addressing the Gommissoner of Eatente, Washington, D. E.

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